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SubjectLinux 3.16.63
I'm announcing the release of the 3.16.63 kernel.

All users of the 3.16 kernel series should upgrade.

The updated 3.16.y git tree can be found at:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.16.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git

The diff from 3.16.62 is attached to this message.

Ben.

------------

Makefile | 6 +-
arch/alpha/include/asm/termios.h | 8 +-
arch/alpha/include/uapi/asm/ioctls.h | 5 +
arch/alpha/include/uapi/asm/termbits.h | 17 ++++
arch/arm/boot/dts/exynos4210-origen.dts | 9 ++
arch/arm/include/asm/uaccess.h | 2 +-
arch/arm/mach-mmp/include/mach/cputype.h | 6 +-
arch/arm/mach-omap1/board-ams-delta.c | 3 +
arch/mips/include/asm/syscall.h | 2 +-
arch/parisc/kernel/entry.S | 2 +-
arch/parisc/kernel/traps.c | 3 +-
arch/parisc/mm/init.c | 8 +-
arch/powerpc/boot/crt0.S | 4 +-
arch/powerpc/platforms/pseries/dtl.c | 4 +-
arch/s390/hypfs/hypfs_vm.c | 2 +-
arch/s390/include/asm/timex.h | 10 +-
arch/sparc/kernel/signal_32.c | 4 +-
arch/um/os-Linux/skas/process.c | 5 +
arch/x86/boot/boot.h | 1 -
arch/x86/boot/compressed/eboot.c | 3 +-
arch/x86/boot/video-mode.c | 2 +
arch/x86/boot/video.c | 2 +
arch/x86/include/asm/kvm_host.h | 2 -
arch/x86/include/asm/page_64_types.h | 3 -
arch/x86/include/asm/page_types.h | 13 ++-
arch/x86/include/asm/pgtable-3level.h | 7 +-
arch/x86/include/asm/pgtable.h | 19 ++--
arch/x86/include/asm/pgtable_types.h | 34 ++++++-
arch/x86/include/asm/x86_init.h | 1 -
arch/x86/include/uapi/asm/msr-index.h | 1 +
arch/x86/kernel/check.c | 15 +++
arch/x86/kernel/cpu/mshyperv.c | 11 +++
arch/x86/kernel/cpu/mtrr/if.c | 2 +
arch/x86/kernel/eisa.c | 1 +
arch/x86/kernel/setup.c | 2 +-
arch/x86/kvm/mmu.c | 27 ++---
arch/x86/kvm/svm.c | 62 ++++--------
arch/x86/kvm/vmx.c | 121 +++--------------------
arch/x86/kvm/x86.c | 21 ++--
arch/x86/um/shared/sysdep/ptrace_32.h | 10 --
arch/x86/vdso/vclock_gettime.c | 8 +-
arch/xtensa/boot/Makefile | 2 +-
arch/xtensa/include/asm/processor.h | 6 +-
arch/xtensa/kernel/asm-offsets.c | 16 +--
arch/xtensa/kernel/head.S | 7 +-
arch/xtensa/kernel/process.c | 5 +-
arch/xtensa/kernel/ptrace.c | 42 +++++++-
arch/xtensa/kernel/vmlinux.lds.S | 1 +
crypto/lrw.c | 7 +-
drivers/acpi/acpi_platform.c | 1 +
drivers/acpi/acpica/dsopcode.c | 4 +
drivers/ata/libata-core.c | 5 +
drivers/block/floppy.c | 3 +-
drivers/clk/clk-s2mps11.c | 27 +++++
drivers/clocksource/i8253.c | 14 ++-
drivers/devfreq/devfreq.c | 53 +++++++++-
drivers/dma/at_hdmac.c | 10 +-
drivers/edac/i7core_edac.c | 1 +
drivers/edac/sb_edac.c | 1 +
drivers/gpio/gpio-max7301.c | 12 +--
drivers/gpu/drm/ast/ast_drv.c | 21 ++++
drivers/gpu/drm/ast/ast_mode.c | 3 +-
drivers/gpu/drm/drm_drv.c | 21 ++--
drivers/gpu/drm/i915/i915_gem.c | 15 ++-
drivers/gpu/drm/i915/intel_pm.c | 43 +++++++-
drivers/hid/hid-ids.h | 3 +
drivers/hid/hid-sensor-hub.c | 13 ++-
drivers/hid/uhid.c | 13 +++
drivers/hid/usbhid/hid-quirks.c | 3 +
drivers/hid/usbhid/hiddev.c | 18 +++-
drivers/hv/channel.c | 8 ++
drivers/hv/hv_kvp.c | 24 ++++-
drivers/hv/vmbus_drv.c | 20 ++++
drivers/hwmon/pmbus/pmbus.c | 2 +
drivers/hwmon/pmbus/pmbus_core.c | 5 +-
drivers/hwmon/w83795.c | 2 +-
drivers/iio/accel/hid-sensor-accel-3d.c | 5 +-
drivers/iio/adc/at91_adc.c | 6 +-
drivers/iio/dac/ad5064.c | 55 ++++++++---
drivers/iio/gyro/hid-sensor-gyro-3d.c | 5 +-
drivers/iio/light/hid-sensor-als.c | 8 +-
drivers/iio/light/hid-sensor-prox.c | 8 +-
drivers/iio/magnetometer/hid-sensor-magn-3d.c | 8 +-
drivers/iio/orientation/hid-sensor-incl-3d.c | 8 +-
drivers/iio/pressure/hid-sensor-press.c | 8 +-
drivers/infiniband/core/cm.c | 42 +++++---
drivers/infiniband/core/user_mad.c | 10 +-
drivers/infiniband/hw/mthca/mthca_main.c | 3 +-
drivers/infiniband/ulp/iser/iser_verbs.c | 7 +-
drivers/input/keyboard/matrix_keypad.c | 23 +++--
drivers/iommu/ipmmu-vmsa.c | 3 +
drivers/md/bcache/btree.c | 2 +-
drivers/md/bcache/request.c | 6 +-
drivers/md/dm-ioctl.c | 18 ++--
drivers/media/i2c/tvp5150.c | 14 ++-
drivers/media/pci/cx23885/altera-ci.c | 10 ++
drivers/media/usb/cx231xx/cx231xx-video.c | 2 +-
drivers/media/usb/em28xx/em28xx-cards.c | 4 +-
drivers/media/usb/em28xx/em28xx-video.c | 8 +-
drivers/media/usb/uvc/uvc_driver.c | 2 +-
drivers/media/v4l2-core/v4l2-event.c | 43 ++++----
drivers/media/v4l2-core/videobuf2-core.c | 4 +-
drivers/misc/atmel-ssc.c | 2 +-
drivers/misc/genwqe/card_base.h | 2 +-
drivers/misc/genwqe/card_dev.c | 9 +-
drivers/misc/sgi-gru/grukdump.c | 4 +
drivers/misc/vmw_vmci/vmci_resource.c | 3 +-
drivers/mmc/card/block.c | 15 ++-
drivers/mmc/core/mmc.c | 19 +++-
drivers/mmc/host/omap.c | 11 ++-
drivers/mmc/host/omap_hsmmc.c | 12 ++-
drivers/mtd/devices/Kconfig | 2 +-
drivers/mtd/spi-nor/fsl-quadspi.c | 14 ++-
drivers/net/can/dev.c | 48 ++++++---
drivers/net/ethernet/broadcom/genet/bcmmii.c | 2 +-
drivers/net/ethernet/cadence/macb.c | 22 ++++-
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 4 +-
drivers/net/ethernet/mellanox/mlx4/mlx4.h | 4 +-
drivers/net/ethernet/neterion/vxge/vxge-config.c | 2 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/common.h | 3 +-
drivers/net/ethernet/stmicro/stmmac/descs_com.h | 2 +-
drivers/net/ethernet/stmicro/stmmac/enh_desc.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/ring_mode.c | 2 +-
drivers/net/phy/phy_device.c | 2 -
drivers/net/rionet.c | 2 +-
drivers/net/team/team.c | 2 -
drivers/net/tun.c | 2 +-
drivers/net/vxlan.c | 13 ++-
drivers/net/wireless/iwlwifi/mvm/rs.c | 29 ++++--
drivers/net/wireless/libertas/if_usb.c | 2 -
drivers/net/wireless/libertas_tf/if_usb.c | 5 +-
drivers/net/wireless/mac80211_hwsim.c | 8 +-
drivers/of/base.c | 25 +++++
drivers/pci/pcie/aspm.c | 2 +-
drivers/pci/quirks.c | 4 +
drivers/pci/remove.c | 4 +-
drivers/pcmcia/ricoh.h | 35 +++++++
drivers/pcmcia/yenta_socket.c | 3 +-
drivers/power/max8998_charger.c | 2 +-
drivers/rtc/rtc-hid-sensor-time.c | 2 +-
drivers/s390/block/dasd_alias.c | 3 +-
drivers/s390/kvm/virtio_ccw.c | 17 +++-
drivers/s390/net/qeth_core_main.c | 27 +++--
drivers/s390/net/qeth_l2_main.c | 3 +
drivers/s390/net/qeth_l3_main.c | 3 +
drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 3 +-
drivers/scsi/esp_scsi.c | 1 +
drivers/scsi/esp_scsi.h | 2 +
drivers/scsi/mac_esp.c | 2 +
drivers/scsi/qla2xxx/qla_init.c | 2 +-
drivers/scsi/qla2xxx/qla_mbx.c | 5 +-
drivers/scsi/sd.c | 17 +++-
drivers/spi/spi-sh-msiof.c | 4 +-
drivers/staging/comedi/drivers/ni_mio_common.c | 22 +++--
drivers/staging/comedi/drivers/quatech_daqp_cs.c | 25 ++++-
drivers/staging/rtl8712/mlme_linux.c | 2 +-
drivers/staging/rtl8712/rtl871x_mlme.c | 2 +-
drivers/thermal/rcar_thermal.c | 9 +-
drivers/tty/serial/kgdboc.c | 9 +-
drivers/tty/tty_ioctl.c | 4 +-
drivers/uio/uio.c | 7 +-
drivers/usb/chipidea/otg.h | 3 +-
drivers/usb/class/cdc-acm.c | 3 +
drivers/usb/core/hub.c | 16 ++-
drivers/usb/core/quirks.c | 18 ++++
drivers/usb/core/usb.c | 6 +-
drivers/usb/dwc3/gadget.c | 6 --
drivers/usb/gadget/fsl_udc_core.c | 30 +++++-
drivers/usb/host/hwa-hc.c | 2 +-
drivers/usb/host/xhci-hub.c | 67 +++++++++----
drivers/usb/host/xhci-pci.c | 4 +
drivers/usb/host/xhci-ring.c | 2 +-
drivers/usb/host/xhci.c | 42 +++++++-
drivers/usb/host/xhci.h | 5 +-
drivers/usb/misc/appledisplay.c | 2 +
drivers/usb/serial/cypress_m8.c | 2 +-
drivers/usb/serial/option.c | 8 +-
drivers/usb/storage/unusual_realtek.h | 10 ++
drivers/vhost/vhost.c | 2 +
drivers/video/fbdev/aty/mach64_accel.c | 28 +++---
drivers/w1/masters/omap_hdq.c | 2 +
drivers/xen/swiotlb-xen.c | 6 ++
fs/aio.c | 2 +
fs/btrfs/dev-replace.c | 7 +-
fs/btrfs/disk-io.c | 10 +-
fs/btrfs/extent-tree.c | 1 +
fs/btrfs/file.c | 30 ++++--
fs/btrfs/free-space-cache.c | 2 +
fs/btrfs/inode.c | 6 +-
fs/btrfs/ioctl.c | 12 ++-
fs/btrfs/qgroup.c | 3 +-
fs/btrfs/relocation.c | 1 +
fs/btrfs/super.c | 1 +
fs/cifs/cifs_debug.c | 3 +
fs/cifs/cifs_spnego.c | 6 +-
fs/cifs/dir.c | 2 +-
fs/cifs/inode.c | 10 +-
fs/cramfs/inode.c | 3 +-
fs/exportfs/expfs.c | 3 +-
fs/ext2/xattr.c | 2 +-
fs/ext4/ext4.h | 3 +-
fs/ext4/inline.c | 2 +-
fs/ext4/ioctl.c | 33 +++++--
fs/ext4/namei.c | 5 +-
fs/ext4/resize.c | 28 +++---
fs/ext4/super.c | 91 ++++++++++-------
fs/ext4/xattr.c | 4 +
fs/fuse/dev.c | 19 +++-
fs/fuse/dir.c | 4 +-
fs/fuse/file.c | 37 +++----
fs/fuse/fuse_i.h | 3 +-
fs/gfs2/ops_fstype.c | 3 +
fs/hfs/btree.c | 3 +-
fs/jffs2/super.c | 4 +-
fs/lockd/host.c | 2 +-
fs/namespace.c | 22 ++++-
fs/nfs/nfs4state.c | 8 +-
fs/ocfs2/dir.c | 3 +-
fs/sysv/inode.c | 2 +-
fs/xfs/xfs_stats.c | 2 +-
include/linux/can/dev.h | 1 +
include/linux/ceph/libceph.h | 8 +-
include/linux/hid-sensor-hub.h | 4 +-
include/linux/i8253.h | 1 +
include/linux/kvm_host.h | 2 -
include/linux/netfilter/x_tables.h | 2 +
include/linux/of.h | 8 ++
include/linux/uaccess.h | 3 +
include/linux/usb.h | 4 +-
include/linux/usb/quirks.h | 3 +
include/net/cipso_ipv4.h | 25 +++--
kernel/bounds.c | 4 +-
kernel/events/uprobes.c | 12 ++-
kernel/irq/manage.c | 8 +-
kernel/printk/printk.c | 7 +-
kernel/signal.c | 2 +-
kernel/time/timer_list.c | 2 +-
kernel/trace/ftrace.c | 1 +
kernel/trace/trace_events_trigger.c | 6 +-
mm/hugetlb.c | 29 +++++-
mm/memory_hotplug.c | 2 +
net/batman-adv/fragmentation.c | 20 ++--
net/batman-adv/types.h | 2 +
net/can/raw.c | 15 +--
net/core/dev.c | 4 +
net/core/rtnetlink.c | 13 +++
net/ipv4/cipso_ipv4.c | 62 ++++++++----
net/ipv6/ip6_fib.c | 6 +-
net/ipv6/ip6_vti.c | 1 +
net/ipv6/ndisc.c | 3 +-
net/l2tp/l2tp_core.c | 9 +-
net/llc/af_llc.c | 13 +--
net/mac80211/iface.c | 2 +
net/mac80211/rx.c | 1 +
net/mac80211/tx.c | 4 +-
net/netfilter/nf_tables_api.c | 22 ++---
net/netfilter/nft_compat.c | 3 +-
net/netfilter/x_tables.c | 30 ++++++
net/netfilter/xt_IDLETIMER.c | 20 ++++
net/netfilter/xt_hashlimit.c | 5 +-
net/netfilter/xt_recent.c | 6 +-
net/netlabel/netlabel_kapi.c | 15 ++-
net/sched/sch_gred.c | 2 +-
net/sunrpc/auth_gss/auth_gss.c | 4 +
net/sunrpc/svc_xprt.c | 2 +-
net/sunrpc/xdr.c | 7 +-
net/sunrpc/xprt.c | 11 ++-
net/vmw_vsock/vmci_transport.c | 67 +++++++++----
net/xfrm/xfrm_state.c | 2 +-
security/integrity/ima/ima_fs.c | 6 +-
sound/core/control.c | 79 ++++++++-------
sound/core/oss/pcm_oss.c | 2 +-
sound/core/oss/pcm_plugin.c | 2 +-
sound/core/pcm_native.c | 3 +-
sound/isa/wss/wss_lib.c | 2 -
sound/pci/ac97/ac97_codec.c | 2 +-
sound/pci/ca0106/ca0106.h | 2 +-
sound/pci/hda/hda_intel.c | 4 +
sound/pci/hda/patch_conexant.c | 1 +
sound/sparc/cs4231.c | 8 +-
sound/usb/card.c | 81 ++++++++++-----
sound/usb/endpoint.c | 10 +-
sound/usb/mixer.c | 32 ++----
sound/usb/mixer_quirks.c | 112 ++++++++++-----------
sound/usb/pcm.c | 32 +++---
sound/usb/proc.c | 4 +-
sound/usb/quirks-table.h | 9 +-
sound/usb/usbaudio.h | 11 ++-
tools/power/cpupower/bench/parse.c | 2 +-
290 files changed, 2171 insertions(+), 1072 deletions(-)

Aaro Koskinen (1):
MMC: OMAP: fix broken MMC on OMAP15XX/OMAP5910/OMAP310

Aaron Ma (2):
usb: xhci: fix uninitialized completion when USB3 port got wrong status
usb: xhci: fix timeout for transition from RExit to U0

Ahmad Fatoum (1):
mtd: spi-nor: fsl-quadspi: Don't let -EINVAL on the bus

Al Viro (2):
gfs2_meta: ->mount() can get NULL dev_name
new helper: uaccess_kernel()

Alex Stanoev (1):
ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops

Alexander Theissen (1):
usb: appledisplay: Add 27" Apple Cinema Display

Amir Goldstein (1):
lockd: fix access beyond unterminated strings in prints

Anders Roxell (1):
cpupower: remove stringop-truncation waring

Andrea Parri (1):
uprobes: Fix handle_swbp() vs. unregister() + register() race once more

Andreas Kemnade (1):
w1: omap-hdq: fix missing bus unregister at removal

Andreas Larsson (1):
sparc32: Fix inverted invalid_frame_pointer checks on sigreturns

Andy Lutomirski (1):
x86/vdso: Fix vDSO syscall fallback asm constraint regression

Anssi Hannula (2):
net: macb: fix dropped RX frames due to a race
net: macb: add missing barriers when reading descriptors

Arnd Bergmann (4):
ARM: fix put_user() for gcc-8
turn off -Wattribute-alias
kbuild: fix kernel/bounds.c 'W=1' warning
mtd: docg3: don't set conflicting BCH_CONST_PARAMS option

Aya Levin (1):
net/mlx4: Fix UBSAN warning of signed integer overflow

Ben Greear (1):
mac80211: Clear beacon_int in ieee80211_do_stop

Ben Hutchings (4):
x86/boot: eboot.c: Include string function declarations
s390/dasd: Restore a necessary cast
ipv6: Fix another sparse warning on rt6i_node
Linux 3.16.63

Benjamin Poirier (1):
xfrm: Fix bucket count reported to userspace

Bin Meng (1):
PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk

Breno Leitao (1):
HID: hiddev: fix potential Spectre v1

Carlos Maiolino (1):
xfs: Fix xqmstats offsets in /proc/fs/xfs/xqmstat

Chad Austin (1):
fuse: continue to send FUSE_RELEASEDIR when FUSE_OPEN returns ENOSYS

Changwei Ge (1):
ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry

Chen Gang (1):
s390/timex: fix get_tod_clock_ext() inline assembly

Chris Mason (1):
Btrfs: don't clean dirty pages during buffered writes

Chris Wilson (1):
drm/i915: Large page offsets for pread/pwrite

Christian Hoff (1):
Input: matrix_keypad - check for errors from of_get_named_gpio()

Christophe Leroy (1):
gpio: max7301: fix driver for use with CONFIG_VMAP_STACK

Chuck Lever (1):
SUNRPC: Fix leak of krb5p encode pages

Colin Ian King (3):
media: cx231xx: fix potential sign-extension overflow on large shift
x86/mtrr: Don't copy uninitialized gentry fields back to userspace
vxge: ensure data0 is initialized in when fetching firmware version information

Dan Carpenter (6):
staging: comedi: quatech_daqp_cs: fix no-op loop daqp_ao_insn_write()
libertas_tf: prevent underflow in process_cmdrequest()
qlcnic: fix a return in qlcnic_dcb_get_capability()
uio: Fix an Oops on load
bnx2fc: fix an error code in _bnx2fc_create()
scsi: bnx2fc: Fix NULL dereference in error handling

Dennis Wassenberg (1):
usb: core: Fix hub port connection events lost

Dexuan Cui (4):
Drivers: hv: kvp: Fix two "this statement may fall through" warnings
Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up
Drivers: hv: vmbus: check the creation_status in vmbus_establish_gpadl()
Drivers: hv: vmbus: Return -EINVAL for the sys files for unopened channels

Diego Viola (2):
libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9
libata: blacklist SAMSUNG MZ7TD256HAFV-000L9 SSD

Dmitry Bazhenov (1):
hwmon: (pmbus) Fix page count auto-detection.

Dmitry Bilunov (1):
KVM: Handle MSR_IA32_PERF_CTL

Dmitry V. Levin (1):
mips: fix mips_get_syscall_arg o32 check

Eduardo Habkost (1):
kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs

Emmanuel Grumbach (1):
mac80211: ignore NullFunc frames in the duplicate detection

Emmanuel Pescosta (1):
usb: quirks: Add delay-init quirk for Corsair K70 LUX RGB

Enric Balletbo i Serra (1):
PM / devfreq: Fix devfreq_add_device() when drivers are built as modules.

Eric Biggers (2):
ima: fix showing large 'violations' or 'runtime_measurements_count'
HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges

Eric Dumazet (4):
llc: do not use sk_eat_skb()
net-gro: reset skb->pkt_type in napi_reuse_skb()
rtnetlink: ndo_dflt_fdb_dump() only work for ARPHRD_ETHER devices
ipv6: tunnels: fix two use-after-free

Eric W. Biederman (5):
signal: Always deliver the kernel's SIGKILL and SIGSTOP to a pid namespace init
signal/GenWQE: Fix sending of SIGKILL
mount: Retest MNT_LOCKED in do_umount
mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts
mount: Prevent MNT_DETACH from disconnecting locked mounts

Erik Schmauss (1):
ACPICA: AML interpreter: add region addresses in global list during initialization

Eugen Hristev (2):
iio: adc: at91: fix acking DRDY irq on simple conversions
iio: adc: at91: fix wrong channel number in triggered buffer mode

Felipe Balbi (1):
Revert "usb: dwc3: gadget: skip Set/Clear Halt when invalid"

Felix Fietkau (1):
mac80211: fix reordering of buffered broadcast packets

Filipe Manana (5):
Btrfs: fix null pointer dereference on compressed write path error
Btrfs: fix use-after-free when dumping free space
Btrfs: fix data corruption due to cloning of eof block
Btrfs: ensure path name is null terminated at btrfs_control_ioctl
Btrfs: fix race between enabling quotas and subvolume creation

Finn Thain (1):
scsi: esp_scsi: Track residual for PIO transfers

Florian Fainelli (1):
net: phy: Stop with excessive soft reset

Florian Westphal (4):
netfilter: x_tables: add and use xt_check_proc_name
netfilter: nf_tables: don't use position attribute on rule replacement
netfilter: nf_tables: fix oob access
netfilter: nf_tables: fix use-after-free when deleting compat expressions

Frank Sorenson (1):
sunrpc: correct the computation for page_ptr when truncating

François Cami (1):
libata: Apply NOLPM quirk for SAMSUNG PM830 CXM13D1Q.

Geert Uytterhoeven (4):
thermal: rcar_thermal: Prevent hardware access during system suspend
thermal: rcar: Make error and remove paths symmetrical with init
thermal: rcar_thermal: Prevent doing work after unbind
iommu/ipmmu-vmsa: Fix crash on early domain free

Gustavo A. R. Silva (2):
drivers/misc/sgi-gru: fix Spectre v1 vulnerability
drm/ioctl: Fix Spectre v1 vulnerabilities

H Hartley Sweeten (2):
staging: comedi: quatech_daqp_cs: fix bug in daqp_ao_insn_write()
staging: comedi: quatech_daqp_cs: use comedi_timeout() in ao (*insn_write)

H. Peter Anvin (1):
termios, tty/tty_baudrate.c: fix buffer overrun

H. Peter Anvin (Intel) (1):
arch/alpha, termios: implement BOTHER, IBSHIFT and termios2

Halil Pasic (2):
virtio/s390: avoid race on vcdev->config
virtio/s390: fix race in ccw_io_helper()

Hangbin Liu (1):
team: no need to do team_notify_peers or team_mcast_rejoin when disabling port

Hans Verkuil (1):
media: vb2: don't call __vb2_queue_cancel if vb2_start_streaming failed

Hans de Goede (3):
libata: Apply NOLPM quirk for SAMSUNG MZMPC128HBFU-000MV SSD
iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
ACPI / platform: Add SMB0001 HID to forbidden_id_list

Harry Pan (1):
usb: quirk: add no-LPM quirk on SanDisk Ultra Flair device

He Zhe (3):
x86/corruption-check: Fix panic in memory_corruption_check() when boot option without value is provided
kgdboc: Passing ekgdboc to command line causes panic
printk: Fix panic caused by passing log_buf_len to command line

Helge Deller (1):
parisc: Fix map_pages() to not overwrite existing pte entries

Himanshu Madhani (1):
scsi: qla2xxx: Fix incorrect port speed being set for FC adapters

Hou Tao (1):
jffs2: free jffs2_sb_info through jffs2_kill_sb()

Huacai Chen (1):
hwmon: (w83795) temp4_type has writable permission

Hui Peng (1):
ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c

Ido Schimmel (1):
rtnetlink: Disallow FDB configuration for non-Ethernet device

Ilya Dryomov (1):
libceph: bump CEPH_MSG_MAX_DATA_LEN

Ingo Molnar (1):
timer/debug: Change /proc/timer_list from 0444 to 0400

Jakub Kicinski (1):
net: sched: gred: pass the right attribute to gred_change_table_def()

Janusz Krzysztofik (1):
ARM: OMAP1: ams-delta: Fix possible use of uninitialized field

Jason Wang (1):
vhost: make sure used idx is seen before log in vhost_add_used_n()

Jeff Mahoney (1):
btrfs: fix error handling in btrfs_dev_replace_start

Jeff Moyer (1):
aio: fix spectre gadget in lookup_ioctx

Jens Axboe (2):
floppy: fix race condition in __floppy_read_block_0()
scsi: sd: use mempool for discard special page

Jeremy Cline (1):
ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905)

Jim Mattson (2):
KVM: nVMX: Always reflect #NM VM-exits to L1
kvm: svm: Ensure an IBPB on all affected CPUs when freeing a vmcb

Joe Jin (1):
xen-swiotlb: use actually allocated size on check physical continuous

Johan Hovold (3):
USB: serial: cypress_m8: fix interrupt-out transfer length
of: add helper to lookup compatible child node
net: bcmgenet: fix OF child-node lookup

John David Anglin (1):
parisc: Fix address in HPMC IVA

Jorgen Hansen (2):
VMCI: Resource wildcard match fixed
VSOCK: Send reset control packet when socket is partially bound

Josef Bacik (1):
btrfs: wait on caching when putting the bg cache

Juergen Gross (1):
x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear

Julian Wiedmann (2):
s390/qeth: invoke softirqs after napi_schedule()
s390/qeth: fix length check in SNMP processing

Junaid Shahid (1):
kvm: mmu: Fix race in emulated page table writes

Jörgen Storvist (1):
USB: serial: option: add Simcom SIM7500/SIM7600 (MBIM mode)

Kai-Heng Feng (4):
USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky hub
USB: quirks: Add no-lpm quirk for Raydium touchscreens
USB: usb-storage: Add new IDs to ums-realtek
ALSA: hda: Add support for AMD Stoney Ridge

Kirill A. Shutemov (1):
x86/mm: Fix regression with huge pages on PAE

Krzysztof Kozlowski (1):
clk: s2mps11: Fix matching when built as module and DT node contains compatible

Ladi Prosek (1):
KVM: x86: Add MSR_AMD64_DC_CFG to the list of ignored MSRs

Lars-Peter Clausen (1):
iio: ad5064: Fix regulator handling

Leon Romanovsky (1):
RDMA/cm: Respect returned status of cm_init_av_by_path

Linus Torvalds (1):
disable new gcc-7.1.1 warnings for now

Loic Poulain (1):
usb: chipidea: Prevent unbalanced IRQ disable

Lubomir Rintel (2):
libertas: don't set URB_ZERO_PACKET on IN USB transfer
ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt

Luca Coelho (1):
iwlwifi: mvm: check return value of rs_rate_from_ucode_rate()

Lukas Czerner (1):
ext4: initialize retries variable in ext4_da_write_inline_data_begin()

Lukas Wunner (2):
PCI/ASPM: Fix link_state teardown on device removal
genirq: Fix race on spurious interrupt detection

Maarten Jacobs (1):
usb: cdc-acm: add entry for Hiro (Conexant) modem

Maciej S. Szmigiero (1):
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges

Macpaul Lin (1):
kgdboc: fix KASAN global-out-of-bounds bug in param_set_kgdboc_var()

Marc Kleine-Budde (4):
can: dev: can_get_echo_skb(): factor out non sending code to __can_get_echo_skb()
can: dev: __can_get_echo_skb(): replace struct can_frame by canfd_frame to access frame length
can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is accessed out of bounds
can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb

Marco Felsch (1):
media: tvp5150: fix width alignment during set_selection()

Marek Szyprowski (1):
ARM: dts: exynos: Disable pull control for MAX8997 interrupts on Origen

Mathias Nyman (3):
usb: xhci: Prevent bus suspend if a port connect change or polling state is detected
xhci: Prevent U1/U2 link pm states if exit latency is too long
xhci: Don't prevent USB2 bus suspend in state check intended for USB3 only

Mathias Payer (1):
USB: check usb_get_extra_descriptor for proper size

Mattias Jacobsson (1):
USB: misc: appledisplay: add 20" Apple Cinema Display

Mauro Carvalho Chehab (3):
media: em28xx: use a default format if TRY_FMT fails
media: em28xx: fix input name for Terratec AV 350
media: em28xx: make v4l2-compliance happier by starting sequence on zero

Max Filippov (6):
xtensa: add NOTES section to the linker script
xtensa: make sure bFLT stack is 16 byte aligned
xtensa: fix boot parameters address translation
xtensa: enable coprocessors that are being flushed
xtensa: fix coprocessor context offset definitions
xtensa: fix coprocessor part of ptrace_{get,set}xregs

Michael Kelley (2):
clockevents/drivers/i8253: Add support for PIT shutdown quirk
x86/hyper-v: Enable PIT shutdown quirk

Michael Niewöhner (1):
usb: core: quirks: add RESET_RESUME quirk for Cherry G230 Stream series

Michal Hocko (1):
memory_hotplug: cond_resched in __remove_pages

Mike Kravetz (2):
hugetlbfs: dirty pages as they are added to pagecache
hugetlbfs: fix kernel BUG at fs/hugetlbfs/inode.c:444!

Miklos Szeredi (3):
fuse: fix blocked_waitq wakeup
fuse: fix leaked notify reply
fuse: cleanup fuse_file refcounting

Mikulas Patocka (2):
mach64: fix display corruption on big endian machines
mach64: fix image corruption due to reading accelerator registers

Nadav Amit (1):
media: uvcvideo: Fix uvc_alloc_entity() allocation alignment

Nathan Chancellor (2):
clk: s2mps11: Add used attribute to s2mps11_dt_match
misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data

Naveen N. Rao (2):
powerpc/pseries: Fix DTL buffer registration
powerpc/pseries: Fix how we iterate over the DTL entries

Nicholas Mc Guire (2):
media: pci: cx23885: handle adding to list failure
usb: gadget: fsl_udc_core: check allocation return value and cleanup on failure

Nicolas Dichtel (1):
tun: forbid iface creation with rtnl ops

Nicolas Huaman (1):
ALSA: usb-audio: update quirk for B&W PX to remove microphone

Nicolas Pitre (1):
Cramfs: fix abad comparison when wrap-arounds occur

Nikolay Borisov (1):
btrfs: Always try all copies when reading extent buffers

Oliver Hartkopp (1):
can: raw: check for CAN FD capable netdev in raw_sendmsg()

Ondrej Mosnacek (1):
crypto: lrw - Fix out-of bounds access on counter overflow

Pan Bian (5):
btrfs: relocation: set trans to be NULL after ending transaction
exportfs: do not read dentry after free
ext2: fix potential use after free
rapidio/rionet: do not free skb before reading its length
hfs: do not free node before using

Paolo Bonzini (1):
KVM: x86: remove code for lazy FPU handling

Parav Pandit (3):
IB/{cm, umad}: Handle av init error
IB/cm: Fix sleeping while spin lock is held
IB/cm: Avoid AV ah_attr overwriting during LAP message handling

Paul Mackerras (1):
powerpc: Fix COFF zImage booting on old powermacs

Paul Moore (1):
cipso: don't use IPCB() to locate the CIPSO IP option

Paulo Alcantara (1):
cifs: Fix separator when building path from dentry

Petr Machata (1):
vxlan: Fix error path in __vxlan_dev_create()

Punnaiah Choudary Kalluri (1):
net: macb: Fix race condition in driver when Rx frame is dropped

Quinn Tran (1):
scsi: qla2xxx: shutdown chip if reset fail

Richard Genoud (2):
dmaengine: at_hdmac: fix memory leak in at_dma_xlate()
dmaengine: at_hdmac: fix module unloading

Richard Weinberger (2):
um: Drop own definition of PTRACE_SYSEMU/_SINGLESTEP
um: Give start_idle_thread() a return code

Robbie Ko (1):
Btrfs: fix cur_offset in the error case for nocow

Russell King (1):
mmc: omap_hsmmc: fix DMA API warning

Sagi Grimberg (1):
iser: set sector for ambiguous mr status errors

Sakari Ailus (1):
media: v4l: event: Add subscription to list before calling "add" operation

Sandeep Singh (1):
xhci: workaround CSS timeout on AMD SNPS 3.0 xHC

Sebastian Parschauer (2):
HID: Add quirk for Microsoft PIXART OEM mouse
HID: Add quirk for Primax PIXART OEM mice

Sergei Shtylyov (1):
spi: sh-msiof: fix deferred probing

Serhey Popovych (1):
tun: Consistently configure generic netdev params via rtnetlink

Spencer E. Olson (1):
staging: comedi: ni_mio_common: protect register write overflow

Stefan Nuernberger (1):
net/ipv4: defensive cipso option parsing

Stefano Brivio (1):
ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called

Steve French (3):
smb3: allow stats which track session and share reconnects to be reset
smb3: do not attempt cifs operation in smb3 query info error path
smb3: on kerberos mount if server doesn't specify auth type use krb5

Steven Rostedt (VMware) (2):
tracing: Fix memory leak in set_trigger_filter()
tracing: Fix memory leak of instance function hash filters

Sven Eckelmann (3):
batman-adv: Check total_size when queueing fragments
batman-adv: Use only queued fragments when merging
batman-adv: Expand merged fragment buffer for full packet

Taehee Yoo (1):
netfilter: xt_IDLETIMER: add sysfs filename checking routine

Takashi Iwai (8):
ALSA: oss: Use kvzalloc() for local buffer allocations
ALSA: ac97: Fix incorrect bit shift at AC97-SPSA control write
ALSA: wss: Fix invalid snd_free_pages() at error path
ALSA: sparc: Fix invalid snd_free_pages() at error path
ALSA: control: Fix race between adding and removing a user element
ALSA: pcm: Call snd_pcm_unlink() conditionally at closing
ALSA: usb-audio: Avoid nested autoresume calls
ALSA: usb-audio: Replace probing flag with active refcount

Takashi Sakamoto (1):
ALSA: control: fix failure to return numerical ID in 'add' event

Tang Junhui (1):
bcache: fix miss key refill->end in writeback

Tarick Bedeir (1):
net/mlx4_core: Correctly set PFC param if global pause is turned off.

Theodore Ts'o (4):
ext4: fix EXT4_IOC_SWAP_BOOT
ext4: fix use-after-free race in ext4_remount()'s error path
ext4: avoid possible double brelse() in add_new_gdb() on error path
ext4: fix possible leak of sbi->s_group_desc_leak in error path

Thomas Gleixner (2):
x86/eisa: Add missing include
mac80211_hwsim: Replace bogus hrtimer clockid

Thomas Zimmermann (1):
drm/ast: Remove existing framebuffers before loading driver

Thor Thayer (1):
net: stmmac: Fix RX packet size > 8191

Tom Lendacky (1):
x86/mm: Simplify p[g4um]d_page() macros

Tomasz Figa (1):
power: supply: max8998-charger: Fix platform data retrieval

Tony Luck (1):
EDAC, {i7core,sb,skx}_edac: Fix uncorrected error counting

Tore Anderson (1):
USB: serial: option: add HP lt4132

Toshi Kani (3):
x86/asm: Add pud/pmd mask interfaces to handle large PAT bit
x86/asm: Move PUD_PAGE macros to page_types.h
x86/asm: Fix pud/pmd interfaces to handle large PAT bit

Trond Myklebust (3):
nfsd: Fix an Oops in free_session()
NFSv4: Don't exit the state manager without clearing NFS4CLNT_MANAGER_RUNNING
SUNRPC: Fix a potential race in xprt_connect()

Ulf Hansson (2):
mmc: core: Reset HPI enabled state during re-init and in case of errors
mmc: core: Use a minimum 1600ms timeout when enabling CACHE ctrl

Vasily Averin (10):
ext4: avoid potential extra brelse in setup_new_flex_group_blocks()
ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path
ext4: add missing brelse() add_new_gdb_meta_bg()'s error path
ext4: add missing brelse() update_backups()'s error path
ext4: fix missing cleanup if ext4_alloc_flex_bg_array() fails while resizing
ext4: fix possible inode leak in the retry loop of ext4_resize_fs()
ext4: avoid buffer leak in ext4_orphan_add() after prior errors
ext4: release bs.bh before re-using in ext4_xattr_block_find()
ext4: fix buffer leak in ext4_xattr_move_to_block() on error path
ext4: fix buffer leak in __ext4_read_dirblock() on error path

Vasyl Vavrychuk (1):
mac80211_hwsim: Timer should be initialized before device registered

Ville Syrjälä (2):
drm/i915: Disable LP3 watermarks on all SNB machines
drm: Rewrite drm_ioctl_flags() to resemble the new drm_ioctl() code

Wanpeng Li (1):
KVM: X86: Fix NULL deref in vcpu_scan_ioapic

Wei Yongjun (1):
IB/mthca: Fix error return code in __mthca_init_one()

Wenwen Wang (1):
dm ioctl: harden copy_params()'s copy_from_user() from malicious users

Wolfram Sang (1):
mmc: core: use mrq->sbc when sending CMD23 for RPMB

Xin Long (1):
l2tp: fix a sock refcnt leak in l2tp_tunnel_register

Y.C. Chen (2):
drm/ast: change resolution may cause screen blurred
drm/ast: fixed cursor may disappear sometimes

Yogesh Gaur (1):
mtd: spi-nor: fsl-quadspi: fix api naming typo _init_ahb_read

Young Xiao (1):
staging: rtl8712: Fix possible buffer overrun

YueHaibing (3):
SUNRPC: drop pointless static qualifier in xdr_get_next_encode_buffer()
sysv: return 'err' instead of 0 in __sysv_write_inode
exportfs: fix 'passing zero to ERR_PTR()' warning

Zhimin Gu (1):
x86, hibernate: Fix nosave_regions setup for hibernation

tang.junhui (1):
bcache: fix wrong cache_misses statistics

yujuan.qi (1):
Cipso: cipso_v4_optptr enter infinite loop

diff --git a/Makefile b/Makefile
index e8aa5044ebdd..8d67c849c7e8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 16
-SUBLEVEL = 62
+SUBLEVEL = 63
EXTRAVERSION =
NAME = Museum of Fishiegoodies

@@ -617,6 +617,10 @@ include $(srctree)/arch/$(SRCARCH)/Makefile

KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)
+KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation)
+KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
+KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
+KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias)

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
index 7fde0f88da88..51ed90be770a 100644
--- a/arch/alpha/include/asm/termios.h
+++ b/arch/alpha/include/asm/termios.h
@@ -72,9 +72,15 @@
})

#define user_termios_to_kernel_termios(k, u) \
- copy_from_user(k, u, sizeof(struct termios))
+ copy_from_user(k, u, sizeof(struct termios2))

#define kernel_termios_to_user_termios(u, k) \
+ copy_to_user(u, k, sizeof(struct termios2))
+
+#define user_termios_to_kernel_termios_1(k, u) \
+ copy_from_user(k, u, sizeof(struct termios))
+
+#define kernel_termios_to_user_termios_1(u, k) \
copy_to_user(u, k, sizeof(struct termios))

#endif /* _ALPHA_TERMIOS_H */
diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index 92c557be49fc..6a25cdeb049e 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -31,6 +31,11 @@
#define TCXONC _IO('t', 30)
#define TCFLSH _IO('t', 31)

+#define TCGETS2 _IOR('T', 42, struct termios2)
+#define TCSETS2 _IOW('T', 43, struct termios2)
+#define TCSETSW2 _IOW('T', 44, struct termios2)
+#define TCSETSF2 _IOW('T', 45, struct termios2)
+
#define TIOCSWINSZ _IOW('t', 103, struct winsize)
#define TIOCGWINSZ _IOR('t', 104, struct winsize)
#define TIOCSTART _IO('t', 110) /* start output, like ^Q */
diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h
index 879dd3589921..483c7ec2a879 100644
--- a/arch/alpha/include/uapi/asm/termbits.h
+++ b/arch/alpha/include/uapi/asm/termbits.h
@@ -25,6 +25,19 @@ struct termios {
speed_t c_ospeed; /* output speed */
};

+/* Alpha has identical termios and termios2 */
+
+struct termios2 {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_cc[NCCS]; /* control characters */
+ cc_t c_line; /* line discipline (== c_cc[19]) */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
+};
+
/* Alpha has matching termios and ktermios */

struct ktermios {
@@ -147,6 +160,7 @@ struct ktermios {
#define B3000000 00034
#define B3500000 00035
#define B4000000 00036
+#define BOTHER 00037

#define CSIZE 00001400
#define CS5 00000000
@@ -164,6 +178,9 @@ struct ktermios {
#define CMSPAR 010000000000 /* mark or space (stick) parity */
#define CRTSCTS 020000000000 /* flow control */

+#define CIBAUD 07600000
+#define IBSHIFT 16
+
/* c_lflag bits */
#define ISIG 0x00000080
#define ICANON 0x00000100
diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index f767c425d0b5..90e8eb16ba5f 100644
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -115,6 +115,8 @@
reg = <0x66>;
interrupt-parent = <&gpx0>;
interrupts = <4 0>, <3 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&max8997_irq>;

max8997,pmic-buck1-dvs-voltage = <1350000>;
max8997,pmic-buck2-dvs-voltage = <1100000>;
@@ -334,3 +336,10 @@
};
};
};
+
+&pinctrl_1 {
+ max8997_irq: max8997-irq {
+ samsung,pins = "gpx0-3", "gpx0-4";
+ samsung,pin-pud = <0>;
+ };
+};
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 75d95799b6e6..3ff5d9a26eee 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -172,7 +172,7 @@ extern int __put_user_8(void *, unsigned long long);
({ \
unsigned long __limit = current_thread_info()->addr_limit - 1; \
const typeof(*(p)) __user *__tmp_p = (p); \
- register const typeof(*(p)) __r2 asm("r2") = (x); \
+ register typeof(*(p)) __r2 asm("r2") = (x); \
register const typeof(*(p)) __user *__p asm("r0") = __tmp_p; \
register unsigned long __l asm("r1") = __limit; \
register int __e asm("r0"); \
diff --git a/arch/arm/mach-mmp/include/mach/cputype.h b/arch/arm/mach-mmp/include/mach/cputype.h
index 8a3b56dfd35d..8f94addd9bce 100644
--- a/arch/arm/mach-mmp/include/mach/cputype.h
+++ b/arch/arm/mach-mmp/include/mach/cputype.h
@@ -43,10 +43,12 @@ static inline int cpu_is_pxa910(void)
#define cpu_is_pxa910() (0)
#endif

-#ifdef CONFIG_CPU_MMP2
+#if defined(CONFIG_CPU_MMP2) || defined(CONFIG_MACH_MMP2_DT)
static inline int cpu_is_mmp2(void)
{
- return (((read_cpuid_id() >> 8) & 0xff) == 0x58);
+ return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
+ (((mmp_chip_id & 0xfff) == 0x410) ||
+ ((mmp_chip_id & 0xfff) == 0x610));
}
#else
#define cpu_is_mmp2() (0)
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index 2aab761ee68d..a5e9a80077a9 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -511,6 +511,9 @@ static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
{
struct modem_private_data *priv = port->private_data;

+ if (!priv)
+ return;
+
if (IS_ERR(priv->regulator))
return;

diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 1c7e4526cbf3..324f099b2b50 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -57,7 +57,7 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
#ifdef CONFIG_64BIT
case 4: case 5: case 6: case 7:
#ifdef CONFIG_MIPS32_O32
- if (test_thread_flag(TIF_32BIT_REGS))
+ if (test_tsk_thread_flag(task, TIF_32BIT_REGS))
return get_user(*arg, (int *)usp + n);
else
#endif
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index e8f07dd28401..d4f4540414c1 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -176,7 +176,7 @@
bv,n 0(%r3)
nop
.word 0 /* checksum (will be patched) */
- .word PA(os_hpmc) /* address of handler */
+ .word 0 /* address of handler */
.word 0 /* length of handler */
.endm

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 05aab1333dfa..9b9233523415 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -833,7 +833,8 @@ int __init check_ivt(void *iva)
for (i = 0; i < 8; i++)
*ivap++ = 0;

- /* Compute Checksum for HPMC handler */
+ /* Setup IVA and compute checksum for HPMC handler */
+ ivap[6] = (u32)__pa(os_hpmc);
length = os_hpmc_size;
ivap[7] = length;

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0bef864264c0..6417a31facda 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -492,12 +492,8 @@ static void __init map_pages(unsigned long start_vaddr,
#endif
pte = __mk_pte(address, pgprot);

- if (address >= end_paddr) {
- if (force)
- break;
- else
- pte_val(pte) = 0;
- }
+ if (address >= end_paddr)
+ break;

set_pte(pg_table, pte);

diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
index 14de4f8778a7..38e90750672d 100644
--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -15,7 +15,7 @@
RELA = 7
RELACOUNT = 0x6ffffff9

- .text
+ .data
/* A procedure descriptor used when booting this as a COFF file.
* When making COFF, this comes first in the link and we're
* linked at 0x500000.
@@ -23,6 +23,8 @@ RELACOUNT = 0x6ffffff9
.globl _zimage_start_opd
_zimage_start_opd:
.long 0x500000, 0, 0, 0
+ .text
+ b _zimage_start

#ifdef __powerpc64__
.balign 8
diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c
index 7d61498e45c0..36895f6de163 100644
--- a/arch/powerpc/platforms/pseries/dtl.c
+++ b/arch/powerpc/platforms/pseries/dtl.c
@@ -149,7 +149,7 @@ static int dtl_start(struct dtl *dtl)

/* Register our dtl buffer with the hypervisor. The HV expects the
* buffer size to be passed in the second word of the buffer */
- ((u32 *)dtl->buf)[1] = DISPATCH_LOG_BYTES;
+ ((u32 *)dtl->buf)[1] = cpu_to_be32(DISPATCH_LOG_BYTES);

hwcpu = get_hard_smp_processor_id(dtl->cpu);
addr = __pa(dtl->buf);
@@ -184,7 +184,7 @@ static void dtl_stop(struct dtl *dtl)

static u64 dtl_current_index(struct dtl *dtl)
{
- return lppaca_of(dtl->cpu).dtl_idx;
+ return be64_to_cpu(lppaca_of(dtl->cpu).dtl_idx);
}
#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */

diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index 32040ace00ea..afbe07907c10 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -231,7 +231,7 @@ int hypfs_vm_create_files(struct dentry *root)
struct dbfs_d2fc_hdr {
u64 len; /* Length of d2fc buffer without header */
u16 version; /* Version of header */
- char tod_ext[16]; /* TOD clock for d2fc */
+ char tod_ext[STORE_CLOCK_EXT_SIZE]; /* TOD clock for d2fc */
u64 count; /* Number of VM guests in d2fc buffer */
char reserved[30];
} __attribute__ ((packed));
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 8beee1cceba4..98eb2a579223 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -67,20 +67,22 @@ static inline void local_tick_enable(unsigned long long comp)
set_clock_comparator(S390_lowcore.clock_comparator);
}

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#define STORE_CLOCK_EXT_SIZE 16 /* stcke writes 16 bytes */

typedef unsigned long long cycles_t;

-static inline void get_tod_clock_ext(char clk[16])
+static inline void get_tod_clock_ext(char *clk)
{
- typedef struct { char _[sizeof(clk)]; } addrtype;
+ typedef struct { char _[STORE_CLOCK_EXT_SIZE]; } addrtype;

asm volatile("stcke %0" : "=Q" (*(addrtype *) clk) : : "cc");
}

static inline unsigned long long get_tod_clock(void)
{
- unsigned char clk[16];
+ unsigned char clk[STORE_CLOCK_EXT_SIZE];
+
get_tod_clock_ext(clk);
return *((unsigned long long *)&clk[1]);
}
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 8492291424ab..d6ab14c2353d 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -89,7 +89,7 @@ asmlinkage void do_sigreturn(struct pt_regs *regs)
sf = (struct signal_frame __user *) regs->u_regs[UREG_FP];

/* 1. Make sure we are not getting garbage from the user */
- if (!invalid_frame_pointer(sf, sizeof(*sf)))
+ if (invalid_frame_pointer(sf, sizeof(*sf)))
goto segv_and_exit;

if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP]))
@@ -150,7 +150,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)

synchronize_user_stack();
sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP];
- if (!invalid_frame_pointer(sf, sizeof(*sf)))
+ if (invalid_frame_pointer(sf, sizeof(*sf)))
goto segv;

if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 908579f2b0ab..258e741f61a8 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -694,6 +694,11 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf)
fatal_sigsegv();
}
longjmp(*switch_buf, 1);
+
+ /* unreachable */
+ printk(UM_KERN_ERR "impossible long jump!");
+ fatal_sigsegv();
+ return 0;
}

void initial_thread_cb_skas(void (*proc)(void *), void *arg)
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index f673f92596fa..43e37404178b 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -23,7 +23,6 @@
#include <stdarg.h>
#include <linux/types.h>
#include <linux/edd.h>
-#include <asm/boot.h>
#include <asm/setup.h>
#include "bitops.h"
#include "ctype.h"
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index a1f905ca1c48..b5577acef092 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -13,8 +13,7 @@
#include <asm/setup.h>
#include <asm/desc.h>

-#undef memcpy /* Use memcpy from misc.c */
-
+#include "../string.h"
#include "eboot.h"

static efi_system_table_t *sys_table;
diff --git a/arch/x86/boot/video-mode.c b/arch/x86/boot/video-mode.c
index 748e8d06290a..a0bb0ada348d 100644
--- a/arch/x86/boot/video-mode.c
+++ b/arch/x86/boot/video-mode.c
@@ -19,6 +19,8 @@
#include "video.h"
#include "vesa.h"

+#include <uapi/asm/boot.h>
+
/*
* Common variables
*/
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index 43eda284d27f..ef69e889bab1 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -13,6 +13,8 @@
* Select video mode
*/

+#include <uapi/asm/boot.h>
+
#include "boot.h"
#include "video.h"
#include "vesa.h"
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f695719a41bd..24e6e92cef86 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -711,8 +711,6 @@ struct kvm_x86_ops {
void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
- void (*fpu_activate)(struct kvm_vcpu *vcpu);
- void (*fpu_deactivate)(struct kvm_vcpu *vcpu);

void (*tlb_flush)(struct kvm_vcpu *vcpu);

diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 75450b2c7be4..c708f8f9fb56 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -20,9 +20,6 @@
#define MCE_STACK 4
#define N_EXCEPTION_STACKS 4 /* hw limit: 7 */

-#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
-#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
-
/*
* Set __PAGE_OFFSET to the most negative possible address +
* PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index f97fbe3abb67..9d0de079af48 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -9,16 +9,21 @@
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))

+#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
+#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
+
+#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
+#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
+
#define __PHYSICAL_MASK ((phys_addr_t)((1ULL << __PHYSICAL_MASK_SHIFT) - 1))
#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)

-/* Cast PAGE_MASK to a signed type so that it is sign-extended if
+/* Cast *PAGE_MASK to a signed type so that it is sign-extended if
virtual addresses are 32-bits but physical addresses are larger
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
-
-#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
-#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
+#define PHYSICAL_PMD_PAGE_MASK (((signed long)PMD_PAGE_MASK) & __PHYSICAL_MASK)
+#define PHYSICAL_PUD_PAGE_MASK (((signed long)PUD_PAGE_MASK) & __PHYSICAL_MASK)

#define HPAGE_SHIFT PMD_SHIFT
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 5c686382d84b..095dbc25122a 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -1,6 +1,8 @@
#ifndef _ASM_X86_PGTABLE_3LEVEL_H
#define _ASM_X86_PGTABLE_3LEVEL_H

+#include <asm/atomic64_32.h>
+
/*
* Intel Physical Address Extension (PAE) Mode - three-level page
* tables on PPro+ CPUs.
@@ -142,10 +144,7 @@ static inline pte_t native_ptep_get_and_clear(pte_t *ptep)
{
pte_t res;

- /* xchg acts as a barrier before the setting of the high bits */
- res.pte_low = xchg(&ptep->pte_low, 0);
- res.pte_high = ptep->pte_high;
- ptep->pte_high = 0;
+ res.pte = (pteval_t)atomic64_xchg((atomic64_t *)ptep, 0);

return res;
}
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 5a102146341b..f8dad5a0bc84 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -156,14 +156,19 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
{
phys_addr_t pfn = pmd_val(pmd);
pfn ^= protnone_mask(pfn);
- return (pfn & PTE_PFN_MASK) >> PAGE_SHIFT;
+ return (pfn & pmd_pfn_mask(pmd)) >> PAGE_SHIFT;
}

static inline unsigned long pud_pfn(pud_t pud)
{
phys_addr_t pfn = pud_val(pud);
pfn ^= protnone_mask(pfn);
- return (pfn & PTE_PFN_MASK) >> PAGE_SHIFT;
+ return (pfn & pud_pfn_mask(pud)) >> PAGE_SHIFT;
+}
+
+static inline unsigned long pgd_pfn(pgd_t pgd)
+{
+ return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
}

#define pte_page(pte) pfn_to_page(pte_pfn(pte))
@@ -584,14 +589,14 @@ static inline int pmd_none(pmd_t pmd)

static inline unsigned long pmd_page_vaddr(pmd_t pmd)
{
- return (unsigned long)__va(pmd_val(pmd) & PTE_PFN_MASK);
+ return (unsigned long)__va(pmd_val(pmd) & pmd_pfn_mask(pmd));
}

/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pmd_page(pmd) pfn_to_page((pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT)
+#define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd))

/*
* the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
@@ -657,14 +662,14 @@ static inline int pud_present(pud_t pud)

static inline unsigned long pud_page_vaddr(pud_t pud)
{
- return (unsigned long)__va((unsigned long)pud_val(pud) & PTE_PFN_MASK);
+ return (unsigned long)__va(pud_val(pud) & pud_pfn_mask(pud));
}

/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
+#define pud_page(pud) pfn_to_page(pud_pfn(pud))

/* Find an entry in the second-level page table.. */
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
@@ -704,7 +709,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
+#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd))

/* to find an entry in a page-table-directory. */
static inline unsigned long pud_index(unsigned long address)
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 32f1f8cac398..562f2d516d29 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -257,10 +257,10 @@

#include <linux/types.h>

-/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
+/* Extracts the PFN from a (pte|pmd|pud|pgd)val_t of a 4KB page */
#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)

-/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
+/* Extracts the flags from a (pte|pmd|pud|pgd)val_t of a 4KB page */
#define PTE_FLAGS_MASK (~PTE_PFN_MASK)

typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
@@ -329,14 +329,40 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
}
#endif

+static inline pudval_t pud_pfn_mask(pud_t pud)
+{
+ if (native_pud_val(pud) & _PAGE_PSE)
+ return PHYSICAL_PUD_PAGE_MASK;
+ else
+ return PTE_PFN_MASK;
+}
+
+static inline pudval_t pud_flags_mask(pud_t pud)
+{
+ return ~pud_pfn_mask(pud);
+}
+
static inline pudval_t pud_flags(pud_t pud)
{
- return native_pud_val(pud) & PTE_FLAGS_MASK;
+ return native_pud_val(pud) & pud_flags_mask(pud);
+}
+
+static inline pmdval_t pmd_pfn_mask(pmd_t pmd)
+{
+ if (native_pmd_val(pmd) & _PAGE_PSE)
+ return PHYSICAL_PMD_PAGE_MASK;
+ else
+ return PTE_PFN_MASK;
+}
+
+static inline pmdval_t pmd_flags_mask(pmd_t pmd)
+{
+ return ~pmd_pfn_mask(pmd);
}

static inline pmdval_t pmd_flags(pmd_t pmd)
{
- return native_pmd_val(pmd) & PTE_FLAGS_MASK;
+ return native_pmd_val(pmd) & pmd_flags_mask(pmd);
}

static inline pte_t native_make_pte(pteval_t val)
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index e45e4da96bf1..c77cbb595724 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -1,7 +1,6 @@
#ifndef _ASM_X86_PLATFORM_H
#define _ASM_X86_PLATFORM_H

-#include <asm/pgtable_types.h>
#include <asm/bootparam.h>

struct mpc_bus;
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index bde8fb38d06e..c0e06e5e47a0 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -236,6 +236,7 @@
#define MSR_F15H_PERF_CTR 0xc0010201
#define MSR_F15H_NB_PERF_CTL 0xc0010240
#define MSR_F15H_NB_PERF_CTR 0xc0010241
+#define MSR_F15H_EX_CFG 0xc001102c

/* Fam 10h MSRs */
#define MSR_FAM10H_MMIO_CONF_BASE 0xc0010058
diff --git a/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 83a7995625a6..2c989db325e4 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -30,6 +30,11 @@ static __init int set_corruption_check(char *arg)
ssize_t ret;
unsigned long val;

+ if (!arg) {
+ pr_err("memory_corruption_check config string not provided\n");
+ return -EINVAL;
+ }
+
ret = kstrtoul(arg, 10, &val);
if (ret)
return ret;
@@ -44,6 +49,11 @@ static __init int set_corruption_check_period(char *arg)
ssize_t ret;
unsigned long val;

+ if (!arg) {
+ pr_err("memory_corruption_check_period config string not provided\n");
+ return -EINVAL;
+ }
+
ret = kstrtoul(arg, 10, &val);
if (ret)
return ret;
@@ -58,6 +68,11 @@ static __init int set_corruption_check_size(char *arg)
char *end;
unsigned size;

+ if (!arg) {
+ pr_err("memory_corruption_check_size config string not provided\n");
+ return -EINVAL;
+ }
+
size = memparse(arg, &end);

if (*end == '\0')
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 939155ffdece..ffef5852fe4e 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -18,6 +18,7 @@
#include <linux/efi.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/i8253.h>
#include <asm/processor.h>
#include <asm/hypervisor.h>
#include <asm/hyperv.h>
@@ -143,6 +144,16 @@ static void __init ms_hyperv_init_platform(void)
no_timer_check = 1;
#endif

+ /*
+ * Hyper-V VMs have a PIT emulation quirk such that zeroing the
+ * counter register during PIT shutdown restarts the PIT. So it
+ * continues to interrupt @18.2 HZ. Setting i8253_clear_counter
+ * to false tells pit_shutdown() not to zero the counter so that
+ * the PIT really is shutdown. Generation 2 VMs don't have a PIT,
+ * and setting this value has no effect.
+ */
+ i8253_clear_counter_on_shutdown = false;
+
}

const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index a041e094b8b9..5598de02d2b4 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -173,6 +173,8 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
struct mtrr_gentry gentry;
void __user *arg = (void __user *) __arg;

+ memset(&gentry, 0, sizeof(gentry));
+
switch (cmd) {
case MTRRIOC_ADD_ENTRY:
case MTRRIOC_SET_ENTRY:
diff --git a/arch/x86/kernel/eisa.c b/arch/x86/kernel/eisa.c
index 7d299ff294fb..e8c8c5d78dbd 100644
--- a/arch/x86/kernel/eisa.c
+++ b/arch/x86/kernel/eisa.c
@@ -5,6 +5,7 @@
*/
#include <linux/ioport.h>
#include <linux/eisa.h>
+#include <linux/io.h>

#include <xen/xen.h>

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 464c49cdbbb9..d3e36b45befb 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1234,7 +1234,7 @@ void __init setup_arch(char **cmdline_p)
kvm_guest_init();

e820_reserve_resources();
- e820_mark_nosave_regions(max_low_pfn);
+ e820_mark_nosave_regions(max_pfn);

x86_init.resources.reserve_resources();

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a2da841d3792..c81ccc0d8da0 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3926,9 +3926,9 @@ static void mmu_pte_write_flush_tlb(struct kvm_vcpu *vcpu, bool zap_page,
}

static u64 mmu_pte_write_fetch_gpte(struct kvm_vcpu *vcpu, gpa_t *gpa,
- const u8 *new, int *bytes)
+ int *bytes)
{
- u64 gentry;
+ u64 gentry = 0;
int r;

/*
@@ -3940,22 +3940,12 @@ static u64 mmu_pte_write_fetch_gpte(struct kvm_vcpu *vcpu, gpa_t *gpa,
/* Handle a 32-bit guest writing two halves of a 64-bit gpte */
*gpa &= ~(gpa_t)7;
*bytes = 8;
- r = kvm_read_guest(vcpu->kvm, *gpa, &gentry, 8);
- if (r)
- gentry = 0;
- new = (const u8 *)&gentry;
}

- switch (*bytes) {
- case 4:
- gentry = *(const u32 *)new;
- break;
- case 8:
- gentry = *(const u64 *)new;
- break;
- default:
- gentry = 0;
- break;
+ if (*bytes == 4 || *bytes == 8) {
+ r = kvm_read_guest_atomic(vcpu->kvm, *gpa, &gentry, *bytes);
+ if (r)
+ gentry = 0;
}

return gentry;
@@ -4064,8 +4054,6 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,

pgprintk("%s: gpa %llx bytes %d\n", __func__, gpa, bytes);

- gentry = mmu_pte_write_fetch_gpte(vcpu, &gpa, new, &bytes);
-
/*
* No need to care whether allocation memory is successful
* or not since pte prefetch is skiped if it does not have
@@ -4074,6 +4062,9 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
mmu_topup_memory_caches(vcpu);

spin_lock(&vcpu->kvm->mmu_lock);
+
+ gentry = mmu_pte_write_fetch_gpte(vcpu, &gpa, &bytes);
+
++vcpu->kvm->stat.mmu_pte_write;
kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 481661815246..69012e84e229 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1119,7 +1119,6 @@ static void init_vmcb(struct vcpu_svm *svm)
struct vmcb_control_area *control = &svm->vmcb->control;
struct vmcb_save_area *save = &svm->vmcb->save;

- svm->vcpu.fpu_active = 1;
svm->vcpu.arch.hflags = 0;

set_cr_intercept(svm, INTERCEPT_CR0_READ);
@@ -1318,21 +1317,31 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
return ERR_PTR(err);
}

+static void svm_clear_current_vmcb(struct vmcb *vmcb)
+{
+ int i;
+
+ for_each_online_cpu(i)
+ cmpxchg(&per_cpu(svm_data, i)->current_vmcb, vmcb, NULL);
+}
+
static void svm_free_vcpu(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);

+ /*
+ * The vmcb page can be recycled, causing a false negative in
+ * svm_vcpu_load(). So, ensure that no logical CPU has this
+ * vmcb page recorded as its current vmcb.
+ */
+ svm_clear_current_vmcb(svm->vmcb);
+
__free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT));
__free_pages(virt_to_page(svm->msrpm), MSRPM_ALLOC_ORDER);
__free_page(virt_to_page(svm->nested.hsave));
__free_pages(virt_to_page(svm->nested.msrpm), MSRPM_ALLOC_ORDER);
kvm_vcpu_uninit(vcpu);
kmem_cache_free(kvm_vcpu_cache, svm);
- /*
- * The vmcb page can be recycled, causing a false negative in
- * svm_vcpu_load(). So do a full IBPB now.
- */
- indirect_branch_prediction_barrier();
}

static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
@@ -1574,15 +1583,12 @@ static void update_cr0_intercept(struct vcpu_svm *svm)
ulong gcr0 = svm->vcpu.arch.cr0;
u64 *hcr0 = &svm->vmcb->save.cr0;

- if (!svm->vcpu.fpu_active)
- *hcr0 |= SVM_CR0_SELECTIVE_MASK;
- else
- *hcr0 = (*hcr0 & ~SVM_CR0_SELECTIVE_MASK)
- | (gcr0 & SVM_CR0_SELECTIVE_MASK);
+ *hcr0 = (*hcr0 & ~SVM_CR0_SELECTIVE_MASK)
+ | (gcr0 & SVM_CR0_SELECTIVE_MASK);

mark_dirty(svm->vmcb, VMCB_CR);

- if (gcr0 == *hcr0 && svm->vcpu.fpu_active) {
+ if (gcr0 == *hcr0) {
clr_cr_intercept(svm, INTERCEPT_CR0_READ);
clr_cr_intercept(svm, INTERCEPT_CR0_WRITE);
} else {
@@ -1613,8 +1619,6 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
if (!npt_enabled)
cr0 |= X86_CR0_PG | X86_CR0_WP;

- if (!vcpu->fpu_active)
- cr0 |= X86_CR0_TS;
/*
* re-enable caching here because the QEMU bios
* does not do it - this results in some delay at
@@ -1834,22 +1838,6 @@ static int ac_interception(struct vcpu_svm *svm)
return 1;
}

-static void svm_fpu_activate(struct kvm_vcpu *vcpu)
-{
- struct vcpu_svm *svm = to_svm(vcpu);
-
- clr_exception_intercept(svm, NM_VECTOR);
-
- svm->vcpu.fpu_active = 1;
- update_cr0_intercept(svm);
-}
-
-static int nm_interception(struct vcpu_svm *svm)
-{
- svm_fpu_activate(&svm->vcpu);
- return 1;
-}
-
static bool is_erratum_383(void)
{
int err, i;
@@ -2227,9 +2215,6 @@ static int nested_svm_exit_special(struct vcpu_svm *svm)
if (!npt_enabled && svm->apf_reason == 0)
return NESTED_EXIT_HOST;
break;
- case SVM_EXIT_EXCP_BASE + NM_VECTOR:
- nm_interception(svm);
- break;
default:
break;
}
@@ -3448,7 +3433,6 @@ static int (*const svm_exit_handlers[])(struct vcpu_svm *svm) = {
[SVM_EXIT_EXCP_BASE + BP_VECTOR] = bp_interception,
[SVM_EXIT_EXCP_BASE + UD_VECTOR] = ud_interception,
[SVM_EXIT_EXCP_BASE + PF_VECTOR] = pf_interception,
- [SVM_EXIT_EXCP_BASE + NM_VECTOR] = nm_interception,
[SVM_EXIT_EXCP_BASE + MC_VECTOR] = mc_interception,
[SVM_EXIT_EXCP_BASE + AC_VECTOR] = ac_interception,
[SVM_EXIT_INTR] = intr_interception,
@@ -4285,14 +4269,6 @@ static bool svm_has_wbinvd_exit(void)
return true;
}

-static void svm_fpu_deactivate(struct kvm_vcpu *vcpu)
-{
- struct vcpu_svm *svm = to_svm(vcpu);
-
- set_exception_intercept(svm, NM_VECTOR);
- update_cr0_intercept(svm);
-}
-
#define PRE_EX(exit) { .exit_code = (exit), \
.stage = X86_ICPT_PRE_EXCEPT, }
#define POST_EX(exit) { .exit_code = (exit), \
@@ -4526,8 +4502,6 @@ static struct kvm_x86_ops svm_x86_ops = {
.cache_reg = svm_cache_reg,
.get_rflags = svm_get_rflags,
.set_rflags = svm_set_rflags,
- .fpu_activate = svm_fpu_activate,
- .fpu_deactivate = svm_fpu_deactivate,

.tlb_flush = svm_flush_tlb,

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index f931787e067b..d3f1873eafc4 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -847,13 +847,6 @@ static inline bool is_page_fault(u32 intr_info)
(INTR_TYPE_HARD_EXCEPTION | PF_VECTOR | INTR_INFO_VALID_MASK);
}

-static inline bool is_no_device(u32 intr_info)
-{
- return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
- INTR_INFO_VALID_MASK)) ==
- (INTR_TYPE_HARD_EXCEPTION | NM_VECTOR | INTR_INFO_VALID_MASK);
-}
-
static inline bool is_invalid_opcode(u32 intr_info)
{
return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
@@ -1491,7 +1484,7 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu)
u32 eb;

eb = (1u << PF_VECTOR) | (1u << UD_VECTOR) | (1u << MC_VECTOR) |
- (1u << NM_VECTOR) | (1u << DB_VECTOR) | (1u << AC_VECTOR);
+ (1u << DB_VECTOR) | (1u << AC_VECTOR);
if ((vcpu->guest_debug &
(KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP)) ==
(KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP))
@@ -1500,8 +1493,6 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu)
eb = ~0;
if (enable_ept)
eb &= ~(1u << PF_VECTOR); /* bypass_guest_pf = 0 */
- if (vcpu->fpu_active)
- eb &= ~(1u << NM_VECTOR);

/* When we are running a nested L2 guest and L1 specified for it a
* certain exception bitmap, we must trap the same exceptions and pass
@@ -1904,25 +1895,6 @@ static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
}
}

-static void vmx_fpu_activate(struct kvm_vcpu *vcpu)
-{
- ulong cr0;
-
- if (vcpu->fpu_active)
- return;
- vcpu->fpu_active = 1;
- cr0 = vmcs_readl(GUEST_CR0);
- cr0 &= ~(X86_CR0_TS | X86_CR0_MP);
- cr0 |= kvm_read_cr0_bits(vcpu, X86_CR0_TS | X86_CR0_MP);
- vmcs_writel(GUEST_CR0, cr0);
- update_exception_bitmap(vcpu);
- vcpu->arch.cr0_guest_owned_bits = X86_CR0_TS;
- if (is_guest_mode(vcpu))
- vcpu->arch.cr0_guest_owned_bits &=
- ~get_vmcs12(vcpu)->cr0_guest_host_mask;
- vmcs_writel(CR0_GUEST_HOST_MASK, ~vcpu->arch.cr0_guest_owned_bits);
-}
-
static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu);

/*
@@ -1941,33 +1913,6 @@ static inline unsigned long nested_read_cr4(struct vmcs12 *fields)
(fields->cr4_read_shadow & fields->cr4_guest_host_mask);
}

-static void vmx_fpu_deactivate(struct kvm_vcpu *vcpu)
-{
- /* Note that there is no vcpu->fpu_active = 0 here. The caller must
- * set this *before* calling this function.
- */
- vmx_decache_cr0_guest_bits(vcpu);
- vmcs_set_bits(GUEST_CR0, X86_CR0_TS | X86_CR0_MP);
- update_exception_bitmap(vcpu);
- vcpu->arch.cr0_guest_owned_bits = 0;
- vmcs_writel(CR0_GUEST_HOST_MASK, ~vcpu->arch.cr0_guest_owned_bits);
- if (is_guest_mode(vcpu)) {
- /*
- * L1's specified read shadow might not contain the TS bit,
- * so now that we turned on shadowing of this bit, we need to
- * set this bit of the shadow. Like in nested_vmx_run we need
- * nested_read_cr0(vmcs12), but vmcs12->guest_cr0 is not yet
- * up-to-date here because we just decached cr0.TS (and we'll
- * only update vmcs12->guest_cr0 on nested exit).
- */
- struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
- vmcs12->guest_cr0 = (vmcs12->guest_cr0 & ~X86_CR0_TS) |
- (vcpu->arch.cr0 & X86_CR0_TS);
- vmcs_writel(CR0_READ_SHADOW, nested_read_cr0(vmcs12));
- } else
- vmcs_writel(CR0_READ_SHADOW, vcpu->arch.cr0);
-}
-
static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
{
unsigned long rflags, save_rflags;
@@ -3586,9 +3531,6 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
if (enable_ept)
ept_update_paging_mode_cr0(&hw_cr0, cr0, vcpu);

- if (!vcpu->fpu_active)
- hw_cr0 |= X86_CR0_TS | X86_CR0_MP;
-
vmcs_writel(CR0_READ_SHADOW, cr0);
vmcs_writel(GUEST_CR0, hw_cr0);
vcpu->arch.cr0 = cr0;
@@ -4644,7 +4586,9 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
/* 22.2.1, 20.8.1 */
vm_entry_controls_init(vmx, vmcs_config.vmentry_ctrl);

- vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL);
+ vmx->vcpu.arch.cr0_guest_owned_bits = X86_CR0_TS;
+ vmcs_writel(CR0_GUEST_HOST_MASK, ~X86_CR0_TS);
+
set_cr4_guest_host_mask(vmx);

return 0;
@@ -4736,7 +4680,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmx_set_cr0(&vmx->vcpu, kvm_read_cr0(vcpu)); /* enter rmode */
vmx_set_cr4(&vmx->vcpu, 0);
vmx_set_efer(&vmx->vcpu, 0);
- vmx_fpu_activate(&vmx->vcpu);
+
update_exception_bitmap(&vmx->vcpu);

vpid_sync_context(vmx);
@@ -5022,11 +4966,6 @@ static int handle_exception(struct kvm_vcpu *vcpu)
if (is_nmi(intr_info))
return 1; /* already handled by vmx_vcpu_run() */

- if (is_no_device(intr_info)) {
- vmx_fpu_activate(vcpu);
- return 1;
- }
-
if (is_invalid_opcode(intr_info)) {
er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD);
if (er == EMULATE_USER_EXIT)
@@ -5218,22 +5157,6 @@ static int handle_set_cr4(struct kvm_vcpu *vcpu, unsigned long val)
return kvm_set_cr4(vcpu, val);
}

-/* called to set cr0 as approriate for clts instruction exit. */
-static void handle_clts(struct kvm_vcpu *vcpu)
-{
- if (is_guest_mode(vcpu)) {
- /*
- * We get here when L2 did CLTS, and L1 didn't shadow CR0.TS
- * but we did (!fpu_active). We need to keep GUEST_CR0.TS on,
- * just pretend it's off (also in arch.cr0 for fpu_activate).
- */
- vmcs_writel(CR0_READ_SHADOW,
- vmcs_readl(CR0_READ_SHADOW) & ~X86_CR0_TS);
- vcpu->arch.cr0 &= ~X86_CR0_TS;
- } else
- vmx_set_cr0(vcpu, kvm_read_cr0_bits(vcpu, ~X86_CR0_TS));
-}
-
static int handle_cr(struct kvm_vcpu *vcpu)
{
unsigned long exit_qualification, val;
@@ -5276,10 +5199,10 @@ static int handle_cr(struct kvm_vcpu *vcpu)
}
break;
case 2: /* clts */
- handle_clts(vcpu);
+ WARN_ONCE(1, "Guest should always own CR0.TS");
+ vmx_set_cr0(vcpu, kvm_read_cr0_bits(vcpu, ~X86_CR0_TS));
trace_kvm_cr_write(0, kvm_read_cr0(vcpu));
skip_emulated_instruction(vcpu);
- vmx_fpu_activate(vcpu);
return 1;
case 1: /*mov from cr*/
switch (cr) {
@@ -7009,9 +6932,6 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
return 0;
else if (is_page_fault(intr_info))
return enable_ept;
- else if (is_no_device(intr_info) &&
- !(vmcs12->guest_cr0 & X86_CR0_TS))
- return 0;
return vmcs12->exception_bitmap &
(1u << (intr_info & INTR_INFO_VECTOR_MASK));
case EXIT_REASON_EXTERNAL_INTERRUPT:
@@ -8299,8 +8219,8 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
vmx_set_efer(vcpu, vcpu->arch.efer);

/*
- * This sets GUEST_CR0 to vmcs12->guest_cr0, with possibly a modified
- * TS bit (for lazy fpu) and bits which we consider mandatory enabled.
+ * This sets GUEST_CR0 to vmcs12->guest_cr0, possibly modifying those
+ * bits which we consider mandatory enabled.
* The CR0_READ_SHADOW is what L2 should have expected to read given
* the specifications by L1; It's not enough to take
* vmcs12->cr0_read_shadow because on our cr0_guest_host_mask we we
@@ -8814,24 +8734,15 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
vmx_set_rflags(vcpu, X86_EFLAGS_FIXED);
/*
* Note that calling vmx_set_cr0 is important, even if cr0 hasn't
- * actually changed, because it depends on the current state of
- * fpu_active (which may have changed).
- * Note that vmx_set_cr0 refers to efer set above.
+ * actually changed, because vmx_set_cr0 refers to efer set above.
+ *
+ * CR0_GUEST_HOST_MASK is already set in the original vmcs01
+ * (KVM doesn't change it);
*/
+ vcpu->arch.cr0_guest_owned_bits = X86_CR0_TS;
vmx_set_cr0(vcpu, vmcs12->host_cr0);
- /*
- * If we did fpu_activate()/fpu_deactivate() during L2's run, we need
- * to apply the same changes to L1's vmcs. We just set cr0 correctly,
- * but we also need to update cr0_guest_host_mask and exception_bitmap.
- */
- update_exception_bitmap(vcpu);
- vcpu->arch.cr0_guest_owned_bits = (vcpu->fpu_active ? X86_CR0_TS : 0);
- vmcs_writel(CR0_GUEST_HOST_MASK, ~vcpu->arch.cr0_guest_owned_bits);

- /*
- * Note that CR4_GUEST_HOST_MASK is already set in the original vmcs01
- * (KVM doesn't change it)- no reason to call set_cr4_guest_host_mask();
- */
+ /* Same as above - no reason to call set_cr4_guest_host_mask(). */
vcpu->arch.cr4_guest_owned_bits = ~vmcs_readl(CR4_GUEST_HOST_MASK);
vmx_set_cr4(vcpu, vmcs12->host_cr4);

@@ -9081,8 +8992,6 @@ static struct kvm_x86_ops vmx_x86_ops = {
.cache_reg = vmx_cache_reg,
.get_rflags = vmx_get_rflags,
.set_rflags = vmx_set_rflags,
- .fpu_activate = vmx_fpu_activate,
- .fpu_deactivate = vmx_fpu_deactivate,

.tlb_flush = vmx_flush_tlb,

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 5a5345d2ba61..ffb64cfc7989 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2085,6 +2085,8 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_VM_HSAVE_PA:
case MSR_AMD64_PATCH_LOADER:
case MSR_AMD64_BU_CFG2:
+ case MSR_AMD64_DC_CFG:
+ case MSR_F15H_EX_CFG:
break;

case MSR_EFER:
@@ -2461,6 +2463,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_AMD64_NB_CFG:
case MSR_FAM10H_MMIO_CONF_BASE:
case MSR_AMD64_BU_CFG2:
+ case MSR_IA32_PERF_CTL:
+ case MSR_AMD64_DC_CFG:
+ case MSR_F15H_EX_CFG:
msr_info->data = 0;
break;
case MSR_P6_PERFCTR0:
@@ -5698,6 +5703,12 @@ int kvm_arch_init(void *opaque)
goto out;
}

+ if (!boot_cpu_has(X86_FEATURE_EAGER_FPU)) {
+ pr_err("kvm: requires eagerfpu\n");
+ r = -EOPNOTSUPP;
+ goto out;
+ }
+
if (!ops->cpu_has_kvm_support()) {
printk(KERN_ERR "kvm: no hardware support\n");
r = -EOPNOTSUPP;
@@ -6048,7 +6059,7 @@ static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
u64 eoi_exit_bitmap[4];
u32 tmr[8];

- if (!kvm_apic_hw_enabled(vcpu->arch.apic))
+ if (!kvm_apic_present(vcpu))
return;

memset(eoi_exit_bitmap, 0, 32);
@@ -6099,10 +6110,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
r = 0;
goto out;
}
- if (kvm_check_request(KVM_REQ_DEACTIVATE_FPU, vcpu)) {
- vcpu->fpu_active = 0;
- kvm_x86_ops->fpu_deactivate(vcpu);
- }
if (kvm_check_request(KVM_REQ_APF_HALT, vcpu)) {
/* Page is swapped out. Do synthetic halt */
vcpu->arch.apf.halted = true;
@@ -6159,8 +6166,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
preempt_disable();

kvm_x86_ops->prepare_guest_switch(vcpu);
- if (vcpu->fpu_active)
- kvm_load_guest_fpu(vcpu);
+ kvm_load_guest_fpu(vcpu);
vcpu->mode = IN_GUEST_MODE;

srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
@@ -6917,7 +6923,6 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
fpu_save_init(&vcpu->arch.guest_fpu);
__kernel_fpu_end();
++vcpu->stat.fpu_reload;
- kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu);
trace_kvm_fpu(0);
}

diff --git a/arch/x86/um/shared/sysdep/ptrace_32.h b/arch/x86/um/shared/sysdep/ptrace_32.h
index b94a108de1dc..ae00d22bce02 100644
--- a/arch/x86/um/shared/sysdep/ptrace_32.h
+++ b/arch/x86/um/shared/sysdep/ptrace_32.h
@@ -10,20 +10,10 @@

static inline void update_debugregs(int seq) {}

-/* syscall emulation path in ptrace */
-
-#ifndef PTRACE_SYSEMU
-#define PTRACE_SYSEMU 31
-#endif
-
void set_using_sysemu(int value);
int get_using_sysemu(void);
extern int sysemu_supported;

-#ifndef PTRACE_SYSEMU_SINGLESTEP
-#define PTRACE_SYSEMU_SINGLESTEP 32
-#endif
-
#define UPT_SYSCALL_ARG1(r) UPT_BX(r)
#define UPT_SYSCALL_ARG2(r) UPT_CX(r)
#define UPT_SYSCALL_ARG3(r) UPT_DX(r)
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 00b5ea4d9189..a3d5326b9e93 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -147,11 +147,11 @@ notrace static long vdso_fallback_gettime(long clock, struct timespec *ts)

asm (
"mov %%ebx, %%edx \n"
- "mov %2, %%ebx \n"
+ "mov %[clock], %%ebx \n"
"call __kernel_vsyscall \n"
"mov %%edx, %%ebx \n"
: "=a" (ret), "=m" (*ts)
- : "0" (__NR_clock_gettime), "g" (clock), "c" (ts)
+ : "0" (__NR_clock_gettime), [clock] "g" (clock), "c" (ts)
: "memory", "edx");
return ret;
}
@@ -162,11 +162,11 @@ notrace static long vdso_fallback_gtod(struct timeval *tv, struct timezone *tz)

asm (
"mov %%ebx, %%edx \n"
- "mov %2, %%ebx \n"
+ "mov %[tv], %%ebx \n"
"call __kernel_vsyscall \n"
"mov %%edx, %%ebx \n"
: "=a" (ret), "=m" (*tv), "=m" (*tz)
- : "0" (__NR_gettimeofday), "g" (tv), "c" (tz)
+ : "0" (__NR_gettimeofday), [tv] "g" (tv), "c" (tz)
: "memory", "edx");
return ret;
}
diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile
index ca20a892021b..6c6877d628ef 100644
--- a/arch/xtensa/boot/Makefile
+++ b/arch/xtensa/boot/Makefile
@@ -31,7 +31,7 @@ $(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \
$(addprefix $(obj)/,$(host-progs))
$(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)

-OBJCOPYFLAGS = --strip-all -R .comment -R .note.gnu.build-id -O binary
+OBJCOPYFLAGS = --strip-all -R .comment -R .notes -O binary

vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index abb59708a3b7..c4e49610fb8a 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -25,7 +25,11 @@
# error Linux requires the Xtensa Windowed Registers Option.
#endif

-#define ARCH_SLAB_MINALIGN XCHAL_DATA_WIDTH
+/* Xtensa ABI requires stack alignment to be at least 16 */
+
+#define STACK_ALIGN (XCHAL_DATA_WIDTH > 16 ? XCHAL_DATA_WIDTH : 16)
+
+#define ARCH_SLAB_MINALIGN STACK_ALIGN

/*
* User space process size: 1 GB.
diff --git a/arch/xtensa/kernel/asm-offsets.c b/arch/xtensa/kernel/asm-offsets.c
index 1915c7c889ba..50edae17181b 100644
--- a/arch/xtensa/kernel/asm-offsets.c
+++ b/arch/xtensa/kernel/asm-offsets.c
@@ -82,14 +82,14 @@ int main(void)
DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
DEFINE(THREAD_CPENABLE, offsetof (struct thread_info, cpenable));
#if XTENSA_HAVE_COPROCESSORS
- DEFINE(THREAD_XTREGS_CP0, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP1, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP2, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP3, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP4, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP5, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP6, offsetof (struct thread_info, xtregs_cp));
- DEFINE(THREAD_XTREGS_CP7, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP0, offsetof(struct thread_info, xtregs_cp.cp0));
+ DEFINE(THREAD_XTREGS_CP1, offsetof(struct thread_info, xtregs_cp.cp1));
+ DEFINE(THREAD_XTREGS_CP2, offsetof(struct thread_info, xtregs_cp.cp2));
+ DEFINE(THREAD_XTREGS_CP3, offsetof(struct thread_info, xtregs_cp.cp3));
+ DEFINE(THREAD_XTREGS_CP4, offsetof(struct thread_info, xtregs_cp.cp4));
+ DEFINE(THREAD_XTREGS_CP5, offsetof(struct thread_info, xtregs_cp.cp5));
+ DEFINE(THREAD_XTREGS_CP6, offsetof(struct thread_info, xtregs_cp.cp6));
+ DEFINE(THREAD_XTREGS_CP7, offsetof(struct thread_info, xtregs_cp.cp7));
#endif
DEFINE(THREAD_XTREGS_USER, offsetof (struct thread_info, xtregs_user));
DEFINE(XTREGS_USER_SIZE, sizeof(xtregs_user_t));
diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S
index 9d0abeeb6533..d6a21972a515 100644
--- a/arch/xtensa/kernel/head.S
+++ b/arch/xtensa/kernel/head.S
@@ -88,9 +88,12 @@ ENTRY(_start)
initialize_mmu
#if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
rsr a2, excsave1
- movi a3, 0x08000000
+ movi a3, XCHAL_KSEG_PADDR
+ bltu a2, a3, 1f
+ sub a2, a2, a3
+ movi a3, XCHAL_KSEG_SIZE
bgeu a2, a3, 1f
- movi a3, 0xd0000000
+ movi a3, XCHAL_KSEG_CACHED_VADDR
add a2, a2, a3
wsr a2, excsave1
1:
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1c85323f01d7..df70d47d14ab 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -83,18 +83,21 @@ void coprocessor_release_all(struct thread_info *ti)

void coprocessor_flush_all(struct thread_info *ti)
{
- unsigned long cpenable;
+ unsigned long cpenable, old_cpenable;
int i;

preempt_disable();

+ RSR_CPENABLE(old_cpenable);
cpenable = ti->cpenable;
+ WSR_CPENABLE(cpenable);

for (i = 0; i < XCHAL_CP_MAX; i++) {
if ((cpenable & 1) != 0 && coprocessor_owner[i] == ti)
coprocessor_flush(ti, i);
cpenable >>= 1;
}
+ WSR_CPENABLE(old_cpenable);

preempt_enable();
}
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 562fac664751..b0aa9e313a05 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -124,12 +124,37 @@ int ptrace_setregs(struct task_struct *child, void __user *uregs)
}


+#if XTENSA_HAVE_COPROCESSORS
+#define CP_OFFSETS(cp) \
+ { \
+ .elf_xtregs_offset = offsetof(elf_xtregs_t, cp), \
+ .ti_offset = offsetof(struct thread_info, xtregs_cp.cp), \
+ .sz = sizeof(xtregs_ ## cp ## _t), \
+ }
+
+static const struct {
+ size_t elf_xtregs_offset;
+ size_t ti_offset;
+ size_t sz;
+} cp_offsets[] = {
+ CP_OFFSETS(cp0),
+ CP_OFFSETS(cp1),
+ CP_OFFSETS(cp2),
+ CP_OFFSETS(cp3),
+ CP_OFFSETS(cp4),
+ CP_OFFSETS(cp5),
+ CP_OFFSETS(cp6),
+ CP_OFFSETS(cp7),
+};
+#endif
+
int ptrace_getxregs(struct task_struct *child, void __user *uregs)
{
struct pt_regs *regs = task_pt_regs(child);
struct thread_info *ti = task_thread_info(child);
elf_xtregs_t __user *xtregs = uregs;
int ret = 0;
+ int i __maybe_unused;

if (!access_ok(VERIFY_WRITE, uregs, sizeof(elf_xtregs_t)))
return -EIO;
@@ -137,8 +162,13 @@ int ptrace_getxregs(struct task_struct *child, void __user *uregs)
#if XTENSA_HAVE_COPROCESSORS
/* Flush all coprocessor registers to memory. */
coprocessor_flush_all(ti);
- ret |= __copy_to_user(&xtregs->cp0, &ti->xtregs_cp,
- sizeof(xtregs_coprocessor_t));
+
+ for (i = 0; i < ARRAY_SIZE(cp_offsets); ++i)
+ ret |= __copy_to_user((char __user *)xtregs +
+ cp_offsets[i].elf_xtregs_offset,
+ (const char *)ti +
+ cp_offsets[i].ti_offset,
+ cp_offsets[i].sz);
#endif
ret |= __copy_to_user(&xtregs->opt, &regs->xtregs_opt,
sizeof(xtregs->opt));
@@ -154,6 +184,7 @@ int ptrace_setxregs(struct task_struct *child, void __user *uregs)
struct pt_regs *regs = task_pt_regs(child);
elf_xtregs_t *xtregs = uregs;
int ret = 0;
+ int i __maybe_unused;

if (!access_ok(VERIFY_READ, uregs, sizeof(elf_xtregs_t)))
return -EFAULT;
@@ -163,8 +194,11 @@ int ptrace_setxregs(struct task_struct *child, void __user *uregs)
coprocessor_flush_all(ti);
coprocessor_release_all(ti);

- ret |= __copy_from_user(&ti->xtregs_cp, &xtregs->cp0,
- sizeof(xtregs_coprocessor_t));
+ for (i = 0; i < ARRAY_SIZE(cp_offsets); ++i)
+ ret |= __copy_from_user((char *)ti + cp_offsets[i].ti_offset,
+ (const char __user *)xtregs +
+ cp_offsets[i].elf_xtregs_offset,
+ cp_offsets[i].sz);
#endif
ret |= __copy_from_user(&regs->xtregs_opt, &xtregs->opt,
sizeof(xtregs->opt));
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index 126de5b30b9f..a805f1bc19f1 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -110,6 +110,7 @@ SECTIONS
.fixup : { *(.fixup) }

EXCEPTION_TABLE(16)
+ NOTES
/* Data section */

_sdata = .;
diff --git a/crypto/lrw.c b/crypto/lrw.c
index 6f9908a7ebcb..d38a382b09eb 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -132,7 +132,12 @@ static inline int get_index128(be128 *block)
return x + ffz(val);
}

- return x;
+ /*
+ * If we get here, then x == 128 and we are incrementing the counter
+ * from all ones to all zeros. This means we must return index 127, i.e.
+ * the one corresponding to key2*{ 1,...,1 }.
+ */
+ return 127;
}

static int crypt(struct blkcipher_desc *d,
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 1beef6aa9904..7446372234e1 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -28,6 +28,7 @@ static const struct acpi_device_id forbidden_id_list[] = {
{"PNP0200", 0}, /* AT DMA Controller */
{"ACPI0009", 0}, /* IOxAPIC */
{"ACPI000A", 0}, /* IOAPIC */
+ {"SMB0001", 0}, /* ACPI SMBUS virtual device */
{"", 0},
};

diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 5e7c7c301c5c..ea5c6f780b49 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -449,6 +449,10 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
ACPI_FORMAT_UINT64(obj_desc->region.address),
obj_desc->region.length));

+ status = acpi_ut_add_address_range(obj_desc->region.space_id,
+ obj_desc->region.address,
+ obj_desc->region.length, node);
+
/* Now the address and length are valid for this opregion */

obj_desc->region.flags |= AOPOBJ_DATA_VALID;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 2ff6e1933ef5..48ef233d1f02 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4246,6 +4246,11 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "Crucial_CT960M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM |
ATA_HORKAGE_NOLPM, },

+ /* These specific Samsung models/firmware-revs do not handle LPM well */
+ { "SAMSUNG MZMPC128HBFU-000MV", "CXM14M1Q", ATA_HORKAGE_NOLPM, },
+ { "SAMSUNG SSD PM830 mSATA *", "CXM13D1Q", ATA_HORKAGE_NOLPM, },
+ { "SAMSUNG MZ7TD256HAFV-000L9", NULL, ATA_HORKAGE_NOLPM, },
+
/* devices that don't properly handle queued TRIM commands */
{ "Micron_M500IT_*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM, },
{ "Micron_M500_*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index f824836d2e7a..df51673d6591 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3819,10 +3819,11 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive)
bio.bi_private = &cbdata;
bio.bi_end_io = floppy_rb0_cb;

+ init_completion(&cbdata.complete);
+
submit_bio(READ, &bio);
process_fd_request();

- init_completion(&cbdata.complete);
wait_for_completion(&cbdata.complete);

__free_page(page);
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 3757e9e72d37..cfedd8d2f769 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -296,6 +296,33 @@ static const struct platform_device_id s2mps11_clk_id[] = {
};
MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);

+#ifdef CONFIG_OF
+/*
+ * Device is instantiated through parent MFD device and device matching is done
+ * through platform_device_id.
+ *
+ * However if device's DT node contains proper clock compatible and driver is
+ * built as a module, then the *module* matching will be done trough DT aliases.
+ * This requires of_device_id table. In the same time this will not change the
+ * actual *device* matching so do not add .of_match_table.
+ */
+static const struct of_device_id s2mps11_dt_match[] __used = {
+ {
+ .compatible = "samsung,s2mps11-clk",
+ .data = (void *)S2MPS11X,
+ }, {
+ .compatible = "samsung,s2mps14-clk",
+ .data = (void *)S2MPS14X,
+ }, {
+ .compatible = "samsung,s5m8767-clk",
+ .data = (void *)S5M8767X,
+ }, {
+ /* Sentinel */
+ },
+};
+MODULE_DEVICE_TABLE(of, s2mps11_dt_match);
+#endif
+
static struct platform_driver s2mps11_clk_driver = {
.driver = {
.name = "s2mps11-clk",
diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c
index 14ee3efcc404..d927ebd6c35b 100644
--- a/drivers/clocksource/i8253.c
+++ b/drivers/clocksource/i8253.c
@@ -19,6 +19,13 @@
DEFINE_RAW_SPINLOCK(i8253_lock);
EXPORT_SYMBOL(i8253_lock);

+/*
+ * Handle PIT quirk in pit_shutdown() where zeroing the counter register
+ * restarts the PIT, negating the shutdown. On platforms with the quirk,
+ * platform specific code can set this to false.
+ */
+bool i8253_clear_counter_on_shutdown = true;
+
#ifdef CONFIG_CLKSRC_I8253
/*
* Since the PIT overflows every tick, its not very useful
@@ -123,8 +130,11 @@ static void init_pit_timer(enum clock_event_mode mode,
if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
evt->mode == CLOCK_EVT_MODE_ONESHOT) {
outb_p(0x30, PIT_MODE);
- outb_p(0, PIT_CH0);
- outb_p(0, PIT_CH0);
+
+ if (i8253_clear_counter_on_shutdown) {
+ outb_p(0, PIT_CH0);
+ outb_p(0, PIT_CH0);
+ }
}
break;

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index decaa3698e12..df02406ce085 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -11,6 +11,7 @@
*/

#include <linux/kernel.h>
+#include <linux/kmod.h>
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/err.h>
@@ -148,6 +149,49 @@ static struct devfreq_governor *find_devfreq_governor(const char *name)
return ERR_PTR(-ENODEV);
}

+/**
+ * try_then_request_governor() - Try to find the governor and request the
+ * module if is not found.
+ * @name: name of the governor
+ *
+ * Search the list of devfreq governors and request the module and try again
+ * if is not found. This can happen when both drivers (the governor driver
+ * and the driver that call devfreq_add_device) are built as modules.
+ * devfreq_list_lock should be held by the caller. Returns the matched
+ * governor's pointer.
+ */
+static struct devfreq_governor *try_then_request_governor(const char *name)
+{
+ struct devfreq_governor *governor;
+ int err = 0;
+
+ if (IS_ERR_OR_NULL(name)) {
+ pr_err("DEVFREQ: %s: Invalid parameters\n", __func__);
+ return ERR_PTR(-EINVAL);
+ }
+ WARN(!mutex_is_locked(&devfreq_list_lock),
+ "devfreq_list_lock must be locked.");
+
+ governor = find_devfreq_governor(name);
+ if (IS_ERR(governor)) {
+ mutex_unlock(&devfreq_list_lock);
+
+ if (!strncmp(name, "simple_ondemand",
+ DEVFREQ_NAME_LEN))
+ err = request_module("governor_%s", "simpleondemand");
+ else
+ err = request_module("governor_%s", name);
+ /* Restore previous state before return */
+ mutex_lock(&devfreq_list_lock);
+ if (err)
+ return NULL;
+
+ governor = find_devfreq_governor(name);
+ }
+
+ return governor;
+}
+
/* Load monitoring helper functions for governors use */

/**
@@ -499,9 +543,8 @@ struct devfreq *devfreq_add_device(struct device *dev,
mutex_unlock(&devfreq->lock);

mutex_lock(&devfreq_list_lock);
- list_add(&devfreq->node, &devfreq_list);

- governor = find_devfreq_governor(devfreq->governor_name);
+ governor = try_then_request_governor(devfreq->governor_name);
if (IS_ERR(governor)) {
dev_err(dev, "%s: Unable to find governor for the device\n",
__func__);
@@ -517,12 +560,14 @@ struct devfreq *devfreq_add_device(struct device *dev,
__func__);
goto err_init;
}
+
+ list_add(&devfreq->node, &devfreq_list);
+
mutex_unlock(&devfreq_list_lock);

return devfreq;

err_init:
- list_del(&devfreq->node);
mutex_unlock(&devfreq_list_lock);

device_unregister(&devfreq->dev);
@@ -798,7 +843,7 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
return -EINVAL;

mutex_lock(&devfreq_list_lock);
- governor = find_devfreq_governor(str_governor);
+ governor = try_then_request_governor(str_governor);
if (IS_ERR(governor)) {
ret = PTR_ERR(governor);
goto out;
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index c13a3bb0f594..d5cdc0d3d23a 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1231,6 +1231,12 @@ static void atc_free_chan_resources(struct dma_chan *chan)
atchan->status = 0;
atchan->remain_desc = 0;

+ /*
+ * Free atslave allocated in at_dma_xlate()
+ */
+ kfree(chan->private);
+ chan->private = NULL;
+
dev_vdbg(chan2dev(chan), "free_chan_resources: done\n");
}

@@ -1265,7 +1271,7 @@ static struct dma_chan *at_dma_xlate(struct of_phandle_args *dma_spec,
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);

- atslave = devm_kzalloc(&dmac_pdev->dev, sizeof(*atslave), GFP_KERNEL);
+ atslave = kzalloc(sizeof(*atslave), GFP_KERNEL);
if (!atslave)
return NULL;

@@ -1558,6 +1564,8 @@ static int at_dma_remove(struct platform_device *pdev)
struct resource *io;

at_dma_off(atdma);
+ if (pdev->dev.of_node)
+ of_dma_controller_free(pdev->dev.of_node);
dma_async_device_unregister(&atdma->dma_common);

dma_pool_destroy(atdma->dma_desc_pool);
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 8f4ac40dd979..a0702c483a17 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1729,6 +1729,7 @@ static void i7core_mce_output_error(struct mem_ctl_info *mci,
u32 errnum = find_first_bit(&error, 32);

if (uncorrected_error) {
+ core_err_cnt = 1;
if (ripv)
tp_event = HW_EVENT_ERR_FATAL;
else
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index beac1858e94f..1f92d55eb37d 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1659,6 +1659,7 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
recoverable = GET_BITFIELD(m->status, 56, 56);

if (uncorrected_error) {
+ core_err_cnt = 1;
if (ripv) {
type = "FATAL";
tp_event = HW_EVENT_ERR_FATAL;
diff --git a/drivers/gpio/gpio-max7301.c b/drivers/gpio/gpio-max7301.c
index 6e1c984a75d4..e6f11c4f8d1c 100644
--- a/drivers/gpio/gpio-max7301.c
+++ b/drivers/gpio/gpio-max7301.c
@@ -25,7 +25,7 @@ static int max7301_spi_write(struct device *dev, unsigned int reg,
struct spi_device *spi = to_spi_device(dev);
u16 word = ((reg & 0x7F) << 8) | (val & 0xFF);

- return spi_write(spi, (const u8 *)&word, sizeof(word));
+ return spi_write_then_read(spi, &word, sizeof(word), NULL, 0);
}

/* A read from the MAX7301 means two transfers; here, one message each */
@@ -37,14 +37,8 @@ static int max7301_spi_read(struct device *dev, unsigned int reg)
struct spi_device *spi = to_spi_device(dev);

word = 0x8000 | (reg << 8);
- ret = spi_write(spi, (const u8 *)&word, sizeof(word));
- if (ret)
- return ret;
- /*
- * This relies on the fact, that a transfer with NULL tx_buf shifts out
- * zero bytes (=NOOP for MAX7301)
- */
- ret = spi_read(spi, (u8 *)&word, sizeof(word));
+ ret = spi_write_then_read(spi, &word, sizeof(word), &word,
+ sizeof(word));
if (ret)
return ret;
return word & 0xff;
diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index 44074fbcf7ff..7a66431a1074 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -60,8 +60,29 @@ static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {

MODULE_DEVICE_TABLE(pci, pciidlist);

+static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
+{
+ struct apertures_struct *ap;
+ bool primary = false;
+
+ ap = alloc_apertures(1);
+ if (!ap)
+ return;
+
+ ap->ranges[0].base = pci_resource_start(pdev, 0);
+ ap->ranges[0].size = pci_resource_len(pdev, 0);
+
+#ifdef CONFIG_X86
+ primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
+#endif
+ remove_conflicting_framebuffers(ap, "astdrmfb", primary);
+ kfree(ap);
+}
+
static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ ast_kick_out_firmware_fb(pdev);
+
return drm_get_pci_dev(pdev, ent, &driver);
}

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index d7e615282d38..c760bcb8d6ca 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -527,6 +527,7 @@ static int ast_crtc_do_set_base(struct drm_crtc *crtc,
}
ast_bo_unreserve(bo);

+ ast_set_offset_reg(crtc);
ast_set_start_address_crt1(crtc, (u32)gpu_addr);

return 0;
@@ -1232,7 +1233,7 @@ static int ast_cursor_move(struct drm_crtc *crtc,
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));

/* dummy write to fire HWC */
- ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xCB, 0xFF, 0x00);
+ ast_show_cursor(crtc);

return 0;
}
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 8218078b6133..7549b9fe4d42 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -49,6 +49,7 @@
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/nospec.h>
#include <drm/drmP.h>
#include <drm/drm_core.h>

@@ -360,7 +361,10 @@ long drm_ioctl(struct file *filp,
if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
(nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
u32 drv_size;
- ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
+ unsigned int index = nr - DRM_COMMAND_BASE;
+
+ index = array_index_nospec(index, dev->driver->num_ioctls);
+ ioctl = &dev->driver->ioctls[index];
drv_size = _IOC_SIZE(ioctl->cmd_drv);
usize = asize = _IOC_SIZE(cmd);
if (drv_size > asize)
@@ -370,6 +374,7 @@ long drm_ioctl(struct file *filp,
else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
u32 drv_size;

+ nr = array_index_nospec(nr, DRM_CORE_IOCTL_COUNT);
ioctl = &drm_ioctls[nr];

drv_size = _IOC_SIZE(ioctl->cmd);
@@ -460,12 +465,14 @@ EXPORT_SYMBOL(drm_ioctl);
*/
bool drm_ioctl_flags(unsigned int nr, unsigned int *flags)
{
- if ((nr >= DRM_COMMAND_END && nr < DRM_CORE_IOCTL_COUNT) ||
- (nr < DRM_COMMAND_BASE)) {
- *flags = drm_ioctls[nr].flags;
- return true;
- }
+ if (nr >= DRM_COMMAND_BASE && nr < DRM_COMMAND_END)
+ return false;
+
+ if (nr >= DRM_CORE_IOCTL_COUNT)
+ return false;
+ nr = array_index_nospec(nr, DRM_CORE_IOCTL_COUNT);

- return false;
+ *flags = drm_ioctls[nr].flags;
+ return true;
}
EXPORT_SYMBOL(drm_ioctl_flags);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 3b2bca469cd4..6b2a948ab33b 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -573,7 +573,7 @@ i915_gem_shmem_pread(struct drm_device *dev,
char __user *user_data;
ssize_t remain;
loff_t offset;
- int shmem_page_offset, page_length, ret = 0;
+ int shmem_page_offset, ret = 0;
int obj_do_bit17_swizzling, page_do_bit17_swizzling;
int prefaulted = 0;
int needs_clflush = 0;
@@ -593,6 +593,7 @@ i915_gem_shmem_pread(struct drm_device *dev,
for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents,
offset >> PAGE_SHIFT) {
struct page *page = sg_page_iter_page(&sg_iter);
+ unsigned int page_length;

if (remain <= 0)
break;
@@ -603,9 +604,7 @@ i915_gem_shmem_pread(struct drm_device *dev,
* page_length = bytes to copy for this page
*/
shmem_page_offset = offset_in_page(offset);
- page_length = remain;
- if ((shmem_page_offset + page_length) > PAGE_SIZE)
- page_length = PAGE_SIZE - shmem_page_offset;
+ page_length = min_t(u64, remain, PAGE_SIZE - shmem_page_offset);

page_do_bit17_swizzling = obj_do_bit17_swizzling &&
(page_to_phys(page) & (1 << 17)) != 0;
@@ -870,7 +869,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev,
ssize_t remain;
loff_t offset;
char __user *user_data;
- int shmem_page_offset, page_length, ret = 0;
+ int shmem_page_offset, ret = 0;
int obj_do_bit17_swizzling, page_do_bit17_swizzling;
int hit_slowpath = 0;
int needs_clflush_after = 0;
@@ -913,6 +912,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev,
offset >> PAGE_SHIFT) {
struct page *page = sg_page_iter_page(&sg_iter);
int partial_cacheline_write;
+ unsigned int page_length;

if (remain <= 0)
break;
@@ -923,10 +923,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev,
* page_length = bytes to copy for this page
*/
shmem_page_offset = offset_in_page(offset);
-
- page_length = remain;
- if ((shmem_page_offset + page_length) > PAGE_SIZE)
- page_length = PAGE_SIZE - shmem_page_offset;
+ page_length = min_t(u64, remain, PAGE_SIZE - shmem_page_offset);

/* If we don't overwrite a cacheline completely we need to be
* careful to have up-to-date data by first clflushing. Don't
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index aa83a835965c..e19c3201db30 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1749,6 +1749,9 @@ static uint32_t ilk_compute_pri_wm(const struct ilk_pipe_wm_parameters *params,
{
uint32_t method1, method2;

+ if (mem_value == 0)
+ return U32_MAX;
+
if (!params->active || !params->pri.enabled)
return 0;

@@ -1777,6 +1780,9 @@ static uint32_t ilk_compute_spr_wm(const struct ilk_pipe_wm_parameters *params,
{
uint32_t method1, method2;

+ if (mem_value == 0)
+ return U32_MAX;
+
if (!params->active || !params->spr.enabled)
return 0;

@@ -1798,6 +1804,9 @@ static uint32_t ilk_compute_spr_wm(const struct ilk_pipe_wm_parameters *params,
static uint32_t ilk_compute_cur_wm(const struct ilk_pipe_wm_parameters *params,
uint32_t mem_value)
{
+ if (mem_value == 0)
+ return U32_MAX;
+
if (!params->active || !params->cur.enabled)
return 0;

@@ -2149,6 +2158,36 @@ static void snb_wm_latency_quirk(struct drm_device *dev)
intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency);
}

+static void snb_wm_lp3_irq_quirk(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /*
+ * On some SNB machines (Thinkpad X220 Tablet at least)
+ * LP3 usage can cause vblank interrupts to be lost.
+ * The DEIIR bit will go high but it looks like the CPU
+ * never gets interrupted.
+ *
+ * It's not clear whether other interrupt source could
+ * be affected or if this is somehow limited to vblank
+ * interrupts only. To play it safe we disable LP3
+ * watermarks entirely.
+ */
+ if (dev_priv->wm.pri_latency[3] == 0 &&
+ dev_priv->wm.spr_latency[3] == 0 &&
+ dev_priv->wm.cur_latency[3] == 0)
+ return;
+
+ dev_priv->wm.pri_latency[3] = 0;
+ dev_priv->wm.spr_latency[3] = 0;
+ dev_priv->wm.cur_latency[3] = 0;
+
+ DRM_DEBUG_KMS("LP3 watermarks disabled due to potential for lost interrupts\n");
+ intel_print_wm_latency(dev, "Primary", dev_priv->wm.pri_latency);
+ intel_print_wm_latency(dev, "Sprite", dev_priv->wm.spr_latency);
+ intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency);
+}
+
static void ilk_setup_wm_latency(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -2167,8 +2206,10 @@ static void ilk_setup_wm_latency(struct drm_device *dev)
intel_print_wm_latency(dev, "Sprite", dev_priv->wm.spr_latency);
intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency);

- if (IS_GEN6(dev))
+ if (IS_GEN6(dev)) {
snb_wm_latency_quirk(dev);
+ snb_wm_lp3_irq_quirk(dev);
+ }
}

static void ilk_compute_wm_parameters(struct drm_crtc *crtc,
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 0c7f18197e4c..5e3a4ef4a3de 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -704,6 +704,7 @@
#define USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP 0x07e9
#define USB_DEVICE_ID_MS_TYPE_COVER_3 0x07de
#define USB_DEVICE_ID_MS_POWER_COVER 0x07da
+#define USB_DEVICE_ID_MS_PIXART_MOUSE 0x00cb

#define USB_VENDOR_ID_MOJO 0x8282
#define USB_DEVICE_ID_RETRO_ADAPTER 0x3201
@@ -1054,6 +1055,8 @@
#define USB_VENDOR_ID_PRIMAX 0x0461
#define USB_DEVICE_ID_PRIMAX_MOUSE_4D22 0x4d22
#define USB_DEVICE_ID_PRIMAX_KEYBOARD 0x4e05
+#define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F 0x4d0f
+#define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22 0x4e22


#define USB_VENDOR_ID_RISO_KAGAKU 0x1294 /* Riso Kagaku Corp. */
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index e244e449cbba..248a436e222a 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -257,7 +257,8 @@ EXPORT_SYMBOL_GPL(sensor_hub_get_feature);

int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
- u32 attr_usage_id, u32 report_id)
+ u32 attr_usage_id, u32 report_id,
+ bool is_signed)
{
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
unsigned long flags;
@@ -282,10 +283,16 @@ int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
wait_for_completion_interruptible_timeout(&data->pending.ready, HZ*5);
switch (data->pending.raw_size) {
case 1:
- ret_val = *(u8 *)data->pending.raw_data;
+ if (is_signed)
+ ret_val = *(s8 *)data->pending.raw_data;
+ else
+ ret_val = *(u8 *)data->pending.raw_data;
break;
case 2:
- ret_val = *(u16 *)data->pending.raw_data;
+ if (is_signed)
+ ret_val = *(s16 *)data->pending.raw_data;
+ else
+ ret_val = *(u16 *)data->pending.raw_data;
break;
case 4:
ret_val = *(u32 *)data->pending.raw_data;
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index e0453b6a21a8..035c7c2863dc 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -12,6 +12,7 @@

#include <linux/atomic.h>
#include <linux/compat.h>
+#include <linux/cred.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/hid.h>
@@ -22,6 +23,7 @@
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
+#include <linux/uaccess.h>
#include <linux/uhid.h>
#include <linux/wait.h>

@@ -676,6 +678,17 @@ static ssize_t uhid_char_write(struct file *file, const char __user *buffer,

switch (uhid->input_buf.type) {
case UHID_CREATE:
+ /*
+ * 'struct uhid_create_req' contains a __user pointer which is
+ * copied from, so it's unsafe to allow this with elevated
+ * privileges (e.g. from a setuid binary) or via kernel_write().
+ */
+ if (file->f_cred != current_cred() || uaccess_kernel()) {
+ pr_err_once("UHID_CREATE from different security context by process %d (%s), this is not allowed.\n",
+ task_tgid_vnr(current), current->comm);
+ ret = -EACCES;
+ goto unlock;
+ }
ret = uhid_dev_create(uhid, &uhid->input_buf);
break;
case UHID_CREATE2:
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 2858cce95d9f..dd70a28d6771 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -117,6 +117,7 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER, HID_QUIRK_NO_INIT_REPORTS },
+ { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PIXART_MOUSE, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GX680R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_NEXIO, USB_DEVICE_ID_NEXIO_MULTITOUCH_PTI0750, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS },
@@ -128,6 +129,8 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4D22, HID_QUIRK_ALWAYS_POLL },
+ { USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F, HID_QUIRK_ALWAYS_POLL },
+ { USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3003, HID_QUIRK_NOGET },
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index b59b15d4caa9..308d8432fea3 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -521,14 +521,24 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
if (cmd == HIDIOCGCOLLECTIONINDEX) {
if (uref->usage_index >= field->maxusage)
goto inval;
+ uref->usage_index =
+ array_index_nospec(uref->usage_index,
+ field->maxusage);
} else if (uref->usage_index >= field->report_count)
goto inval;
}

- if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
- (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
- uref->usage_index + uref_multi->num_values > field->report_count))
- goto inval;
+ if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
+ if (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
+ uref->usage_index + uref_multi->num_values >
+ field->report_count)
+ goto inval;
+
+ uref->usage_index =
+ array_index_nospec(uref->usage_index,
+ field->report_count -
+ uref_multi->num_values);
+ }

switch (cmd) {
case HIDIOCGUSAGE:
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index db2e7fecae49..acebfddb1e29 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -416,6 +416,14 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
}
wait_for_completion(&msginfo->waitevent);

+ if (msginfo->response.gpadl_created.creation_status != 0) {
+ pr_err("Failed to establish GPADL: err = 0x%x\n",
+ msginfo->response.gpadl_created.creation_status);
+
+ ret = -EDQUOT;
+ goto cleanup;
+ }
+
/* At this point, we received the gpadl created msg */
*gpadl_handle = gpadlmsg->gpadl;

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 521c14625b3a..9ad9194024f7 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -326,7 +326,9 @@ static void process_ib_ipinfo(void *in_msg, void *out_msg, int op)

out->body.kvp_ip_val.dhcp_enabled = in->kvp_ip_val.dhcp_enabled;

- default:
+ /* fallthrough */
+
+ case KVP_OP_GET_IP_INFO:
utf16s_to_utf8s((wchar_t *)in->kvp_ip_val.adapter_id,
MAX_ADAPTER_ID_SIZE,
UTF16_LITTLE_ENDIAN,
@@ -379,6 +381,10 @@ kvp_send_key(struct work_struct *dummy)
process_ib_ipinfo(in_msg, message, KVP_OP_SET_IP_INFO);
break;
case KVP_OP_GET_IP_INFO:
+ /*
+ * We only need to pass on the info of operation, adapter_id
+ * and addr_family to the userland kvp daemon.
+ */
process_ib_ipinfo(in_msg, message, KVP_OP_GET_IP_INFO);
break;
case KVP_OP_SET:
@@ -419,7 +425,10 @@ kvp_send_key(struct work_struct *dummy)
break;

}
- case KVP_OP_GET:
+
+ /*
+ * The key is always a string - utf16 encoding.
+ */
message->body.kvp_set.data.key_size =
utf16s_to_utf8s(
(wchar_t *)in_msg->body.kvp_set.data.key,
@@ -427,6 +436,17 @@ kvp_send_key(struct work_struct *dummy)
UTF16_LITTLE_ENDIAN,
message->body.kvp_set.data.key,
HV_KVP_EXCHANGE_MAX_KEY_SIZE - 1) + 1;
+
+ break;
+
+ case KVP_OP_GET:
+ message->body.kvp_get.data.key_size =
+ utf16s_to_utf8s(
+ (wchar_t *)in_msg->body.kvp_get.data.key,
+ in_msg->body.kvp_get.data.key_size,
+ UTF16_LITTLE_ENDIAN,
+ message->body.kvp_get.data.key,
+ HV_KVP_EXCHANGE_MAX_KEY_SIZE - 1) + 1;
break;

case KVP_OP_DELETE:
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 1f2fff71dbe3..68523636410b 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -260,6 +260,8 @@ static ssize_t out_intr_mask_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.current_interrupt_mask);
}
@@ -273,6 +275,8 @@ static ssize_t out_read_index_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.current_read_index);
}
@@ -287,6 +291,8 @@ static ssize_t out_write_index_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.current_write_index);
}
@@ -301,6 +307,8 @@ static ssize_t out_read_bytes_avail_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.bytes_avail_toread);
}
@@ -315,6 +323,8 @@ static ssize_t out_write_bytes_avail_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
return sprintf(buf, "%d\n", outbound.bytes_avail_towrite);
}
@@ -328,6 +338,8 @@ static ssize_t in_intr_mask_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.current_interrupt_mask);
}
@@ -341,6 +353,8 @@ static ssize_t in_read_index_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.current_read_index);
}
@@ -354,6 +368,8 @@ static ssize_t in_write_index_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.current_write_index);
}
@@ -368,6 +384,8 @@ static ssize_t in_read_bytes_avail_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.bytes_avail_toread);
}
@@ -382,6 +400,8 @@ static ssize_t in_write_bytes_avail_show(struct device *dev,

if (!hv_dev->channel)
return -ENODEV;
+ if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
return sprintf(buf, "%d\n", inbound.bytes_avail_towrite);
}
diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c
index 7e91700131a7..adb97e452fad 100644
--- a/drivers/hwmon/pmbus/pmbus.c
+++ b/drivers/hwmon/pmbus/pmbus.c
@@ -117,6 +117,8 @@ static int pmbus_identify(struct i2c_client *client,
} else {
info->pages = 1;
}
+
+ pmbus_clear_faults(client);
}

if (pmbus_check_byte_register(client, 0, PMBUS_VOUT_MODE)) {
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 6f3fabb5350f..1b0b4125f8a5 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -1705,7 +1705,10 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data,
}
}

- pmbus_clear_faults(client);
+ if (data->info->pages)
+ pmbus_clear_faults(client);
+ else
+ pmbus_clear_fault_page(client, -1);

if (info->identify) {
ret = (*info->identify)(client, info);
diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c
index 21894131190f..9b838fff7e4d 100644
--- a/drivers/hwmon/w83795.c
+++ b/drivers/hwmon/w83795.c
@@ -1693,7 +1693,7 @@ store_sf_setup(struct device *dev, struct device_attribute *attr,
* somewhere else in the code
*/
#define SENSOR_ATTR_TEMP(index) { \
- SENSOR_ATTR_2(temp##index##_type, S_IRUGO | (index < 4 ? S_IWUSR : 0), \
+ SENSOR_ATTR_2(temp##index##_type, S_IRUGO | (index < 5 ? S_IWUSR : 0), \
show_temp_mode, store_temp_mode, NOT_USED, index - 1), \
SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \
NULL, TEMP_READ, index - 1), \
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index 54e464e4bb72..1c4b0248d7bf 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -112,6 +112,7 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -125,12 +126,14 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
hid_sensor_power_state(&accel_state->common_attributes, true);
msleep_interruptible(poll_value * 2);
report_id = accel_state->accel[chan->scan_index].report_id;
+ min = accel_state->accel[chan->scan_index].logical_minimum;
address = accel_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
accel_state->common_attributes.hsdev,
HID_USAGE_SENSOR_ACCEL_3D, address,
- report_id);
+ report_id,
+ min < 0);
else {
*val = 0;
hid_sensor_power_state(&accel_state->common_attributes,
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index e98515fc469f..10d5ec213091 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -245,12 +245,14 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *idev = pf->indio_dev;
struct at91_adc_state *st = iio_priv(idev);
+ struct iio_chan_spec const *chan;
int i, j = 0;

for (i = 0; i < idev->masklength; i++) {
if (!test_bit(i, idev->active_scan_mask))
continue;
- st->buffer[j] = at91_adc_readl(st, AT91_ADC_CHAN(st, i));
+ chan = idev->channels + i;
+ st->buffer[j] = at91_adc_readl(st, AT91_ADC_CHAN(st, chan->channel));
j++;
}

@@ -276,6 +278,8 @@ void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
iio_trigger_poll(idev->trig, iio_get_time_ns());
} else {
st->last_value = at91_adc_readl(st, AT91_ADC_CHAN(st, st->chnb));
+ /* Needed to ACK the DRDY interruption */
+ at91_adc_readl(st, AT91_ADC_LCDR);
st->done = true;
wake_up_interruptible(&st->wq_data_avail);
}
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index aac16fecdfa8..ed76d8c88e91 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -469,6 +469,41 @@ static const char * const ad5064_vref_name(struct ad5064_state *st,
return st->chip_info->shared_vref ? "vref" : ad5064_vref_names[vref];
}

+static int ad5064_request_vref(struct ad5064_state *st, struct device *dev)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < ad5064_num_vref(st); ++i)
+ st->vref_reg[i].supply = ad5064_vref_name(st, i);
+
+ if (!st->chip_info->internal_vref)
+ return devm_regulator_bulk_get(dev, ad5064_num_vref(st),
+ st->vref_reg);
+
+ /*
+ * This assumes that when the regulator has an internal VREF
+ * there is only one external VREF connection, which is
+ * currently the case for all supported devices.
+ */
+ st->vref_reg[0].consumer = devm_regulator_get_optional(dev, "vref");
+ if (!IS_ERR(st->vref_reg[0].consumer))
+ return 0;
+
+ ret = PTR_ERR(st->vref_reg[0].consumer);
+ if (ret != -ENODEV)
+ return ret;
+
+ /* If no external regulator was supplied use the internal VREF */
+ st->use_internal_vref = true;
+ ret = ad5064_write(st, AD5064_CMD_CONFIG, 0,
+ AD5064_CONFIG_INT_VREF_ENABLE, 0);
+ if (ret)
+ dev_err(dev, "Failed to enable internal vref: %d\n", ret);
+
+ return ret;
+}
+
static int ad5064_probe(struct device *dev, enum ad5064_type type,
const char *name, ad5064_write_func write)
{
@@ -489,23 +524,11 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
st->dev = dev;
st->write = write;

- for (i = 0; i < ad5064_num_vref(st); ++i)
- st->vref_reg[i].supply = ad5064_vref_name(st, i);
+ ret = ad5064_request_vref(st, dev);
+ if (ret)
+ return ret;

- ret = devm_regulator_bulk_get(dev, ad5064_num_vref(st),
- st->vref_reg);
- if (ret) {
- if (!st->chip_info->internal_vref)
- return ret;
- st->use_internal_vref = true;
- ret = ad5064_write(st, AD5064_CMD_CONFIG, 0,
- AD5064_CONFIG_INT_VREF_ENABLE, 0);
- if (ret) {
- dev_err(dev, "Failed to enable internal vref: %d\n",
- ret);
- return ret;
- }
- } else {
+ if (!st->use_internal_vref) {
ret = regulator_bulk_enable(ad5064_num_vref(st), st->vref_reg);
if (ret)
return ret;
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index fa034a3dad78..15fe41bf7c67 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -112,6 +112,7 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -125,12 +126,14 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
hid_sensor_power_state(&gyro_state->common_attributes, true);
msleep_interruptible(poll_value * 2);
report_id = gyro_state->gyro[chan->scan_index].report_id;
+ min = gyro_state->gyro[chan->scan_index].logical_minimum;
address = gyro_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
gyro_state->common_attributes.hsdev,
HID_USAGE_SENSOR_GYRO_3D, address,
- report_id);
+ report_id,
+ min < 0);
else {
*val = 0;
hid_sensor_power_state(&gyro_state->common_attributes,
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 96e71e103ea7..f032906ab5ff 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -81,6 +81,7 @@ static int als_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -89,8 +90,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
switch (chan->scan_index) {
case CHANNEL_SCAN_INDEX_ILLUM:
report_id = als_state->als_illum.report_id;
- address =
- HID_USAGE_SENSOR_LIGHT_ILLUM;
+ min = als_state->als_illum.logical_minimum;
+ address = HID_USAGE_SENSOR_LIGHT_ILLUM;
break;
default:
report_id = -1;
@@ -109,7 +110,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
als_state->common_attributes.hsdev,
HID_USAGE_SENSOR_ALS, address,
- report_id);
+ report_id,
+ min < 0);
hid_sensor_power_state(&als_state->common_attributes,
false);
} else {
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index c95b9682f0da..607a6fb5adb0 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -74,6 +74,7 @@ static int prox_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -82,8 +83,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
switch (chan->scan_index) {
case CHANNEL_SCAN_INDEX_PRESENCE:
report_id = prox_state->prox_attr.report_id;
- address =
- HID_USAGE_SENSOR_HUMAN_PRESENCE;
+ min = prox_state->prox_attr.logical_minimum;
+ address = HID_USAGE_SENSOR_HUMAN_PRESENCE;
break;
default:
report_id = -1;
@@ -103,7 +104,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
prox_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PROX, address,
- report_id);
+ report_id,
+ min < 0);
hid_sensor_power_state(&prox_state->common_attributes,
false);
} else {
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index b2b0937d5133..0de504b70c93 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -112,6 +112,7 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -125,14 +126,15 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
hid_sensor_power_state(&magn_state->common_attributes, true);
msleep_interruptible(poll_value * 2);

- report_id =
- magn_state->magn[chan->scan_index].report_id;
+ report_id = magn_state->magn[chan->scan_index].report_id;
+ min = magn_state->magn[chan->scan_index].logical_minimum;
address = magn_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
magn_state->common_attributes.hsdev,
HID_USAGE_SENSOR_COMPASS_3D, address,
- report_id);
+ report_id,
+ min < 0);
else {
*val = 0;
hid_sensor_power_state(&magn_state->common_attributes,
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index 2478f6c2ef25..e037175d813a 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -112,6 +112,7 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -125,14 +126,15 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
hid_sensor_power_state(&incl_state->common_attributes, true);
msleep_interruptible(poll_value * 2);

- report_id =
- incl_state->incl[chan->scan_index].report_id;
+ report_id = incl_state->incl[chan->scan_index].report_id;
+ min = incl_state->incl[chan->scan_index].logical_minimum;
address = incl_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
incl_state->common_attributes.hsdev,
HID_USAGE_SENSOR_INCLINOMETER_3D, address,
- report_id);
+ report_id,
+ min < 0);
else {
hid_sensor_power_state(&incl_state->common_attributes,
false);
diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
index 759b153f1955..7118aa68a866 100644
--- a/drivers/iio/pressure/hid-sensor-press.c
+++ b/drivers/iio/pressure/hid-sensor-press.c
@@ -78,6 +78,7 @@ static int press_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret_type;
s32 poll_value;
+ s32 min;

*val = 0;
*val2 = 0;
@@ -86,8 +87,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
switch (chan->scan_index) {
case CHANNEL_SCAN_INDEX_PRESSURE:
report_id = press_state->press_attr.report_id;
- address =
- HID_USAGE_SENSOR_ATMOSPHERIC_PRESSURE;
+ min = press_state->press_attr.logical_minimum;
+ address = HID_USAGE_SENSOR_ATMOSPHERIC_PRESSURE;
break;
default:
report_id = -1;
@@ -106,7 +107,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
press_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PRESSURE, address,
- report_id);
+ report_id,
+ min < 0);
hid_sensor_power_state(&press_state->common_attributes,
false);
} else {
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 1cf32b827806..eb8575a88b0c 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -380,13 +380,13 @@ static void cm_set_private_data(struct cm_id_private *cm_id_priv,
cm_id_priv->private_data_len = private_data_len;
}

-static void cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc,
- struct ib_grh *grh, struct cm_av *av)
+static int cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc,
+ struct ib_grh *grh, struct cm_av *av)
{
av->port = port;
av->pkey_index = wc->pkey_index;
- ib_init_ah_from_wc(port->cm_dev->ib_device, port->port_num, wc,
- grh, &av->ah_attr);
+ return ib_init_ah_from_wc(port->cm_dev->ib_device, port->port_num, wc,
+ grh, &av->ah_attr);
}

static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av,
@@ -1601,9 +1601,11 @@ static int cm_req_handler(struct cm_work *work)

cm_id_priv = container_of(cm_id, struct cm_id_private, id);
cm_id_priv->id.remote_id = req_msg->local_comm_id;
- cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
- work->mad_recv_wc->recv_buf.grh,
- &cm_id_priv->av);
+ ret = cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
+ work->mad_recv_wc->recv_buf.grh,
+ &cm_id_priv->av);
+ if (ret)
+ goto destroy;
cm_id_priv->timewait_info = cm_create_timewait_info(cm_id_priv->
id.local_id);
if (IS_ERR(cm_id_priv->timewait_info)) {
@@ -2805,13 +2807,19 @@ static int cm_lap_handler(struct cm_work *work)
goto unlock;
}

+ ret = cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
+ work->mad_recv_wc->recv_buf.grh,
+ &cm_id_priv->av);
+ if (ret)
+ goto unlock;
+
+ ret = cm_init_av_by_path(param->alternate_path,
+ &cm_id_priv->alt_av, cm_id_priv);
+ if (ret)
+ goto unlock;
+
cm_id_priv->id.lap_state = IB_CM_LAP_RCVD;
cm_id_priv->tid = lap_msg->hdr.tid;
- cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
- work->mad_recv_wc->recv_buf.grh,
- &cm_id_priv->av);
- cm_init_av_by_path(param->alternate_path, &cm_id_priv->alt_av,
- cm_id_priv);
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
@@ -3060,6 +3068,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
struct cm_id_private *cm_id_priv, *cur_cm_id_priv;
struct cm_sidr_req_msg *sidr_req_msg;
struct ib_wc *wc;
+ int ret;

cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL);
if (IS_ERR(cm_id))
@@ -3072,9 +3081,12 @@ static int cm_sidr_req_handler(struct cm_work *work)
wc = work->mad_recv_wc->wc;
cm_id_priv->av.dgid.global.subnet_prefix = cpu_to_be64(wc->slid);
cm_id_priv->av.dgid.global.interface_id = 0;
- cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
- work->mad_recv_wc->recv_buf.grh,
- &cm_id_priv->av);
+ ret = cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
+ work->mad_recv_wc->recv_buf.grh,
+ &cm_id_priv->av);
+ if (ret)
+ goto out;
+
cm_id_priv->id.remote_id = sidr_req_msg->request_id;
cm_id_priv->tid = sidr_req_msg->hdr.tid;
atomic_inc(&cm_id_priv->work_count);
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 1acb99100556..163b2f63d9d8 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -234,10 +234,14 @@ static void recv_handler(struct ib_mad_agent *agent,
packet->mad.hdr.grh_present = !!(mad_recv_wc->wc->wc_flags & IB_WC_GRH);
if (packet->mad.hdr.grh_present) {
struct ib_ah_attr ah_attr;
+ int ret;

- ib_init_ah_from_wc(agent->device, agent->port_num,
- mad_recv_wc->wc, mad_recv_wc->recv_buf.grh,
- &ah_attr);
+ ret = ib_init_ah_from_wc(agent->device, agent->port_num,
+ mad_recv_wc->wc,
+ mad_recv_wc->recv_buf.grh,
+ &ah_attr);
+ if (ret)
+ goto err2;

packet->mad.hdr.gid_index = ah_attr.grh.sgid_index;
packet->mad.hdr.hop_limit = ah_attr.grh.hop_limit;
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index ded76c101dde..834b06aacc2b 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -989,7 +989,8 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
goto err_free_dev;
}

- if (mthca_cmd_init(mdev)) {
+ err = mthca_cmd_init(mdev);
+ if (err) {
mthca_err(mdev, "Failed to init command interface, aborting.\n");
goto err_free_dev;
}
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index ea01075f9f9b..a8dd7b077e0f 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -1165,7 +1165,9 @@ u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
IB_MR_CHECK_SIG_STATUS, &mr_status);
if (ret) {
pr_err("ib_check_mr_status failed, ret %d\n", ret);
- goto err;
+ /* Not a lot we can do, return ambiguous guard error */
+ *sector = 0;
+ return 0x1;
}

if (mr_status.fail_status & IB_MR_CHECK_SIG_STATUS) {
@@ -1193,7 +1195,4 @@ u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
}

return 0;
-err:
- /* Not alot we can do here, return ambiguous guard error */
- return 0x1;
}
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index fde979216d58..d26ecfdf866b 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -404,7 +404,7 @@ matrix_keypad_parse_dt(struct device *dev)
struct matrix_keypad_platform_data *pdata;
struct device_node *np = dev->of_node;
unsigned int *gpios;
- int i, nrow, ncol;
+ int ret, i, nrow, ncol;

if (!np) {
dev_err(dev, "device lacks DT data\n");
@@ -444,12 +444,19 @@ matrix_keypad_parse_dt(struct device *dev)
return ERR_PTR(-ENOMEM);
}

- for (i = 0; i < pdata->num_row_gpios; i++)
- gpios[i] = of_get_named_gpio(np, "row-gpios", i);
+ for (i = 0; i < nrow; i++) {
+ ret = of_get_named_gpio(np, "row-gpios", i);
+ if (ret < 0)
+ return ERR_PTR(ret);
+ gpios[i] = ret;
+ }

- for (i = 0; i < pdata->num_col_gpios; i++)
- gpios[pdata->num_row_gpios + i] =
- of_get_named_gpio(np, "col-gpios", i);
+ for (i = 0; i < ncol; i++) {
+ ret = of_get_named_gpio(np, "col-gpios", i);
+ if (ret < 0)
+ return ERR_PTR(ret);
+ gpios[nrow + i] = ret;
+ }

pdata->row_gpios = gpios;
pdata->col_gpios = &gpios[pdata->num_row_gpios];
@@ -476,10 +483,8 @@ static int matrix_keypad_probe(struct platform_device *pdev)
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
pdata = matrix_keypad_parse_dt(&pdev->dev);
- if (IS_ERR(pdata)) {
- dev_err(&pdev->dev, "no platform data defined\n");
+ if (IS_ERR(pdata))
return PTR_ERR(pdata);
- }
} else if (!pdata->keymap_data) {
dev_err(&pdev->dev, "no keymap data defined\n");
return -EINVAL;
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 53cde086e83b..2bbe414e9b0f 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -383,6 +383,9 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)

static void ipmmu_domain_destroy_context(struct ipmmu_vmsa_domain *domain)
{
+ if (!domain->mmu)
+ return;
+
/*
* Disable the context. Flush the TLB as required when modifying the
* context registers.
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 181d3fc29957..a7ddc11f58ab 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2354,7 +2354,7 @@ static int refill_keybuf_fn(struct btree_op *op, struct btree *b,
struct keybuf *buf = refill->buf;
int ret = MAP_CONTINUE;

- if (bkey_cmp(k, refill->end) >= 0) {
+ if (bkey_cmp(k, refill->end) > 0) {
ret = MAP_DONE;
goto out;
}
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 046d7fa71243..16a4f2624a3c 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -462,6 +462,7 @@ struct search {
unsigned recoverable:1;
unsigned write:1;
unsigned read_dirty_data:1;
+ unsigned cache_missed:1;

unsigned long start_time;

@@ -651,6 +652,7 @@ static inline struct search *search_alloc(struct bio *bio,

s->orig_bio = bio;
s->cache_miss = NULL;
+ s->cache_missed = 0;
s->d = d;
s->recoverable = 1;
s->write = (bio->bi_rw & REQ_WRITE) != 0;
@@ -774,7 +776,7 @@ static void cached_dev_read_done_bh(struct closure *cl)
struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);

bch_mark_cache_accounting(s->iop.c, s->d,
- !s->cache_miss, s->iop.bypass);
+ !s->cache_missed, s->iop.bypass);
trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);

if (s->iop.error)
@@ -793,6 +795,8 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
struct bio *miss, *cache_bio;

+ s->cache_missed = 1;
+
if (s->cache_miss || s->iop.bypass) {
miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split);
ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index d20c2de3fd72..7ca3a95d939a 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1681,8 +1681,7 @@ static void free_params(struct dm_ioctl *param, size_t param_size, int param_fla
}

static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl *param_kernel,
- int ioctl_flags,
- struct dm_ioctl **param, int *param_flags)
+ int ioctl_flags, struct dm_ioctl **param, int *param_flags)
{
struct dm_ioctl *dmi;
int secure_data;
@@ -1730,18 +1729,13 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl *param_kern
return -ENOMEM;
}

- if (copy_from_user(dmi, user, param_kernel->data_size))
- goto bad;
+ /* Copy from param_kernel (which was already copied from user) */
+ memcpy(dmi, param_kernel, minimum_data_size);

-data_copied:
- /*
- * Abort if something changed the ioctl data while it was being copied.
- */
- if (dmi->data_size != param_kernel->data_size) {
- DMERR("rejecting ioctl: data size modified while processing parameters");
+ if (copy_from_user(&dmi->data, (char __user *)user + minimum_data_size,
+ param_kernel->data_size - minimum_data_size))
goto bad;
- }
-
+data_copied:
/* Wipe the user buffer so we do not return it to userspace */
if (secure_data && clear_user(user, param_kernel->data_size))
goto bad;
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index a9121254e37a..543e9f7dd37a 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -873,9 +873,6 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)

/* tvp5150 has some special limits */
rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
- rect.width = clamp_t(unsigned int, rect.width,
- TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
- TVP5150_H_MAX - rect.left);
rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);

/* Calculate height based on current standard */
@@ -889,9 +886,16 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
else
hmax = TVP5150_V_MAX_OTHERS;

- rect.height = clamp_t(unsigned int, rect.height,
+ /*
+ * alignments:
+ * - width = 2 due to UYVY colorspace
+ * - height, image = no special alignment
+ */
+ v4l_bound_align_image(&rect.width,
+ TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
+ TVP5150_H_MAX - rect.left, 1, &rect.height,
hmax - TVP5150_MAX_CROP_TOP - rect.top,
- hmax - rect.top);
+ hmax - rect.top, 0, 0);

tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
diff --git a/drivers/media/pci/cx23885/altera-ci.c b/drivers/media/pci/cx23885/altera-ci.c
index 2926f7fadccd..23ef564bfadb 100644
--- a/drivers/media/pci/cx23885/altera-ci.c
+++ b/drivers/media/pci/cx23885/altera-ci.c
@@ -666,6 +666,10 @@ static int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr)
}

temp_int = append_internal(inter);
+ if (!temp_int) {
+ ret = -ENOMEM;
+ goto err;
+ }
inter->filts_used = 1;
inter->dev = config->dev;
inter->fpga_rw = config->fpga_rw;
@@ -700,6 +704,7 @@ static int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr)
__func__, ret);

kfree(pid_filt);
+ kfree(inter);

return ret;
}
@@ -735,6 +740,10 @@ int altera_ci_init(struct altera_ci_config *config, int ci_nr)
}

temp_int = append_internal(inter);
+ if (!temp_int) {
+ ret = -ENOMEM;
+ goto err;
+ }
inter->cis_used = 1;
inter->dev = config->dev;
inter->fpga_rw = config->fpga_rw;
@@ -803,6 +812,7 @@ int altera_ci_init(struct altera_ci_config *config, int ci_nr)
ci_dbg_print("%s: Cannot initialize CI: Error %d.\n", __func__, ret);

kfree(state);
+ kfree(inter);

return ret;
}
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index 1f8751379e24..ca02f7c47226 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -1271,7 +1271,7 @@ int cx231xx_g_register(struct file *file, void *priv,
ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
(u16)reg->reg, value, 4);
reg->val = value[0] | value[1] << 8 |
- value[2] << 16 | value[3] << 24;
+ value[2] << 16 | (u32)value[3] << 24;
reg->size = 4;
break;
case 1: /* AFE - read byte */
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 15ad47045553..7360d9da9f8f 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -2001,13 +2001,13 @@ struct em28xx_board em28xx_boards[] = {
.input = { {
.type = EM28XX_VMUX_COMPOSITE1,
.vmux = TVP5150_COMPOSITE1,
- .amux = EM28XX_AUDIO_SRC_LINE,
+ .amux = EM28XX_AMUX_LINE_IN,
.gpio = terratec_av350_unmute_gpio,

}, {
.type = EM28XX_VMUX_SVIDEO,
.vmux = TVP5150_SVIDEO,
- .amux = EM28XX_AUDIO_SRC_LINE,
+ .amux = EM28XX_AMUX_LINE_IN,
.gpio = terratec_av350_unmute_gpio,
} },
},
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 69810fa0151a..b654ea88b12d 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -928,6 +928,8 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)

em28xx_videodbg("%s\n", __func__);

+ dev->v4l2->field_count = 0;
+
/* Make sure streaming is not already in progress for this type
of filehandle (e.g. video, vbi) */
rc = res_get(dev, vq->type);
@@ -1279,9 +1281,9 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,

fmt = format_by_fourcc(f->fmt.pix.pixelformat);
if (!fmt) {
- em28xx_videodbg("Fourcc format (%08x) invalid.\n",
- f->fmt.pix.pixelformat);
- return -EINVAL;
+ fmt = &format[0];
+ em28xx_videodbg("Fourcc format (%08x) invalid. Using default (%08x).\n",
+ f->fmt.pix.pixelformat, fmt->fourcc);
}

if (dev->board.is_em2800) {
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 0c2a2466fc36..bb002b9120de 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -826,7 +826,7 @@ static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id,
unsigned int size;
unsigned int i;

- extra_size = ALIGN(extra_size, sizeof(*entity->pads));
+ extra_size = roundup(extra_size, sizeof(*entity->pads));
num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1;
size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads
+ num_inputs;
diff --git a/drivers/media/v4l2-core/v4l2-event.c b/drivers/media/v4l2-core/v4l2-event.c
index fcf65f131a2a..35901f5b3971 100644
--- a/drivers/media/v4l2-core/v4l2-event.c
+++ b/drivers/media/v4l2-core/v4l2-event.c
@@ -194,6 +194,22 @@ int v4l2_event_pending(struct v4l2_fh *fh)
}
EXPORT_SYMBOL_GPL(v4l2_event_pending);

+static void __v4l2_event_unsubscribe(struct v4l2_subscribed_event *sev)
+{
+ struct v4l2_fh *fh = sev->fh;
+ unsigned int i;
+
+ lockdep_assert_held(&fh->subscribe_lock);
+ assert_spin_locked(&fh->vdev->fh_lock);
+
+ /* Remove any pending events for this subscription */
+ for (i = 0; i < sev->in_use; i++) {
+ list_del(&sev->events[sev_pos(sev, i)].list);
+ fh->navailable--;
+ }
+ list_del(&sev->list);
+}
+
int v4l2_event_subscribe(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub, unsigned elems,
const struct v4l2_subscribed_event_ops *ops)
@@ -225,27 +241,23 @@ int v4l2_event_subscribe(struct v4l2_fh *fh,

spin_lock_irqsave(&fh->vdev->fh_lock, flags);
found_ev = v4l2_event_subscribed(fh, sub->type, sub->id);
+ if (!found_ev)
+ list_add(&sev->list, &fh->subscribed);
spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);

if (found_ev) {
/* Already listening */
kfree(sev);
- goto out_unlock;
- }
-
- if (sev->ops && sev->ops->add) {
+ } else if (sev->ops && sev->ops->add) {
ret = sev->ops->add(sev, elems);
if (ret) {
+ spin_lock_irqsave(&fh->vdev->fh_lock, flags);
+ __v4l2_event_unsubscribe(sev);
+ spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
kfree(sev);
- goto out_unlock;
}
}

- spin_lock_irqsave(&fh->vdev->fh_lock, flags);
- list_add(&sev->list, &fh->subscribed);
- spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
-
-out_unlock:
mutex_unlock(&fh->subscribe_lock);

return ret;
@@ -280,7 +292,6 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh,
{
struct v4l2_subscribed_event *sev;
unsigned long flags;
- int i;

if (sub->type == V4L2_EVENT_ALL) {
v4l2_event_unsubscribe_all(fh);
@@ -292,14 +303,8 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh,
spin_lock_irqsave(&fh->vdev->fh_lock, flags);

sev = v4l2_event_subscribed(fh, sub->type, sub->id);
- if (sev != NULL) {
- /* Remove any pending events for this subscription */
- for (i = 0; i < sev->in_use; i++) {
- list_del(&sev->events[sev_pos(sev, i)].list);
- fh->navailable--;
- }
- list_del(&sev->list);
- }
+ if (sev != NULL)
+ __v4l2_event_unsubscribe(sev);

spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index ee8b697972bb..b259d08971ee 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -2200,10 +2200,8 @@ static int vb2_internal_streamon(struct vb2_queue *q, enum v4l2_buf_type type)
*/
if (q->queued_count >= q->min_buffers_needed) {
ret = vb2_start_streaming(q);
- if (ret) {
- __vb2_queue_cancel(q);
+ if (ret)
return ret;
- }
}

q->streaming = 1;
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index 22de13727641..6e790ab486cc 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -116,7 +116,7 @@ static const struct of_device_id atmel_ssc_dt_ids[] = {
MODULE_DEVICE_TABLE(of, atmel_ssc_dt_ids);
#endif

-static inline const struct atmel_ssc_platform_data * __init
+static inline const struct atmel_ssc_platform_data *
atmel_ssc_get_driver_data(struct platform_device *pdev)
{
if (pdev->dev.of_node) {
diff --git a/drivers/misc/genwqe/card_base.h b/drivers/misc/genwqe/card_base.h
index 0e608a288603..976064880026 100644
--- a/drivers/misc/genwqe/card_base.h
+++ b/drivers/misc/genwqe/card_base.h
@@ -401,7 +401,7 @@ struct genwqe_file {
struct file *filp;

struct fasync_struct *async_queue;
- struct task_struct *owner;
+ struct pid *opener;
struct list_head list; /* entry in list of open files */

spinlock_t map_lock; /* lock for dma_mappings */
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index 1d2f163a1906..ceac798c1d9c 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -52,7 +52,7 @@ static void genwqe_add_file(struct genwqe_dev *cd, struct genwqe_file *cfile)
{
unsigned long flags;

- cfile->owner = current;
+ cfile->opener = get_pid(task_tgid(current));
spin_lock_irqsave(&cd->file_lock, flags);
list_add(&cfile->list, &cd->file_list);
spin_unlock_irqrestore(&cd->file_lock, flags);
@@ -65,6 +65,7 @@ static int genwqe_del_file(struct genwqe_dev *cd, struct genwqe_file *cfile)
spin_lock_irqsave(&cd->file_lock, flags);
list_del(&cfile->list);
spin_unlock_irqrestore(&cd->file_lock, flags);
+ put_pid(cfile->opener);

return 0;
}
@@ -275,7 +276,7 @@ static int genwqe_kill_fasync(struct genwqe_dev *cd, int sig)
return files;
}

-static int genwqe_force_sig(struct genwqe_dev *cd, int sig)
+static int genwqe_terminate(struct genwqe_dev *cd)
{
unsigned int files = 0;
unsigned long flags;
@@ -283,7 +284,7 @@ static int genwqe_force_sig(struct genwqe_dev *cd, int sig)

spin_lock_irqsave(&cd->file_lock, flags);
list_for_each_entry(cfile, &cd->file_list, list) {
- force_sig(sig, cfile->owner);
+ kill_pid(cfile->opener, SIGKILL, 1);
files++;
}
spin_unlock_irqrestore(&cd->file_lock, flags);
@@ -1346,7 +1347,7 @@ static int genwqe_inform_and_stop_processes(struct genwqe_dev *cd)
dev_warn(&pci_dev->dev,
"[%s] send SIGKILL and wait ...\n", __func__);

- rc = genwqe_force_sig(cd, SIGKILL); /* force terminate */
+ rc = genwqe_terminate(cd);
if (rc) {
/* Give kill_timout more seconds to end processes */
for (i = 0; (i < genwqe_kill_timeout) &&
diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c
index a3700a56b8ff..1bc9469ad520 100644
--- a/drivers/misc/sgi-gru/grukdump.c
+++ b/drivers/misc/sgi-gru/grukdump.c
@@ -27,6 +27,9 @@
#include <linux/delay.h>
#include <linux/bitops.h>
#include <asm/uv/uv_hub.h>
+
+#include <linux/nospec.h>
+
#include "gru.h"
#include "grutables.h"
#include "gruhandles.h"
@@ -198,6 +201,7 @@ int gru_dump_chiplet_request(unsigned long arg)
/* Currently, only dump by gid is implemented */
if (req.gid >= gru_max_gids || req.gid < 0)
return -EINVAL;
+ req.gid = array_index_nospec(req.gid, gru_max_gids);

gru = GID_TO_GRU(req.gid);
ubuf = req.buf;
diff --git a/drivers/misc/vmw_vmci/vmci_resource.c b/drivers/misc/vmw_vmci/vmci_resource.c
index 9a53a30de445..f1164602cec1 100644
--- a/drivers/misc/vmw_vmci/vmci_resource.c
+++ b/drivers/misc/vmw_vmci/vmci_resource.c
@@ -56,7 +56,8 @@ static struct vmci_resource *vmci_resource_lookup(struct vmci_handle handle,

if (r->type == type &&
rid == handle.resource &&
- (cid == handle.context || cid == VMCI_INVALID_ID)) {
+ (cid == handle.context || cid == VMCI_INVALID_ID ||
+ handle.context == VMCI_INVALID_ID)) {
resource = r;
break;
}
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 20a32d14a636..0604d6742b0c 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -449,7 +449,7 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
struct mmc_blk_ioc_data *idata;
struct mmc_blk_data *md;
struct mmc_card *card;
- struct mmc_command cmd = {0};
+ struct mmc_command cmd = {}, sbc = {};
struct mmc_data data = {0};
struct mmc_request mrq = {NULL};
struct scatterlist sg;
@@ -539,10 +539,15 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
}

if (is_rpmb) {
- err = mmc_set_blockcount(card, data.blocks,
- idata->ic.write_flag & (1 << 31));
- if (err)
- goto cmd_rel_host;
+ sbc.opcode = MMC_SET_BLOCK_COUNT;
+ /*
+ * We don't do any blockcount validation because the max size
+ * may be increased by a future standard. We just copy the
+ * 'Reliable Write' bit here.
+ */
+ sbc.arg = data.blocks | (idata->ic.write_flag & BIT(31));
+ sbc.flags = MMC_RSP_R1 | MMC_CMD_AC;
+ mrq.sbc = &sbc;
}

if ((MMC_EXTRACT_INDEX_FROM_ARG(cmd.arg) == EXT_CSD_SANITIZE_START) &&
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index d87f81f3eae4..008ea4c52290 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -24,6 +24,8 @@
#include "mmc_ops.h"
#include "sd_ops.h"

+#define MIN_CACHE_EN_TIMEOUT_MS 1600
+
static const unsigned int tran_exp[] = {
10000, 100000, 1000000, 10000000,
0, 0, 0, 0
@@ -1418,19 +1420,26 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (err) {
pr_warning("%s: Enabling HPI failed\n",
mmc_hostname(card->host));
+ card->ext_csd.hpi_en = 0;
err = 0;
- } else
+ } else {
card->ext_csd.hpi_en = 1;
+ }
}

/*
- * If cache size is higher than 0, this indicates
- * the existence of cache and it can be turned on.
+ * If cache size is higher than 0, this indicates the existence of cache
+ * and it can be turned on. Note that some eMMCs from Micron has been
+ * reported to need ~800 ms timeout, while enabling the cache after
+ * sudden power failure tests. Let's extend the timeout to a minimum of
+ * DEFAULT_CACHE_EN_TIMEOUT_MS and do it for all cards.
*/
if (card->ext_csd.cache_size > 0) {
+ unsigned int timeout_ms = MIN_CACHE_EN_TIMEOUT_MS;
+
+ timeout_ms = max(card->ext_csd.generic_cmd6_time, timeout_ms);
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_CACHE_CTRL, 1,
- card->ext_csd.generic_cmd6_time);
+ EXT_CSD_CACHE_CTRL, 1, timeout_ms);
if (err && err != -EBADMSG)
goto free_card;

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 81974ecdfcbc..1996467481e9 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -105,6 +105,7 @@ struct mmc_omap_slot {
unsigned int vdd;
u16 saved_con;
u16 bus_mode;
+ u16 power_mode;
unsigned int fclk_freq;

struct tasklet_struct cover_tasklet;
@@ -1155,7 +1156,7 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct mmc_omap_slot *slot = mmc_priv(mmc);
struct mmc_omap_host *host = slot->host;
int i, dsor;
- int clk_enabled;
+ int clk_enabled, init_stream;

mmc_omap_select_slot(slot, 0);

@@ -1165,6 +1166,7 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
slot->vdd = ios->vdd;

clk_enabled = 0;
+ init_stream = 0;
switch (ios->power_mode) {
case MMC_POWER_OFF:
mmc_omap_set_power(slot, 0, ios->vdd);
@@ -1172,13 +1174,17 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
case MMC_POWER_UP:
/* Cannot touch dsor yet, just power up MMC */
mmc_omap_set_power(slot, 1, ios->vdd);
+ slot->power_mode = ios->power_mode;
goto exit;
case MMC_POWER_ON:
mmc_omap_fclk_enable(host, 1);
clk_enabled = 1;
dsor |= 1 << 11;
+ if (slot->power_mode != MMC_POWER_ON)
+ init_stream = 1;
break;
}
+ slot->power_mode = ios->power_mode;

if (slot->bus_mode != ios->bus_mode) {
if (slot->pdata->set_bus_mode != NULL)
@@ -1194,7 +1200,7 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
for (i = 0; i < 2; i++)
OMAP_MMC_WRITE(host, CON, dsor);
slot->saved_con = dsor;
- if (ios->power_mode == MMC_POWER_ON) {
+ if (init_stream) {
/* worst case at 400kHz, 80 cycles makes 200 microsecs */
int usecs = 250;

@@ -1232,6 +1238,7 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
slot->host = host;
slot->mmc = mmc;
slot->id = id;
+ slot->power_mode = MMC_POWER_OFF;
slot->pdata = &host->pdata->slots[id];

host->slots[id] = slot;
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index a0a02a8a572e..2c0b99bb1e3a 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1964,7 +1964,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
mmc->max_blk_size = 512; /* Block Length at max can be 1024 */
mmc->max_blk_count = 0xFFFF; /* No. of Blocks is 16 bits */
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
- mmc->max_seg_size = mmc->max_req_size;

mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE;
@@ -2021,6 +2020,17 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
goto err_irq;
}

+ /*
+ * Limit the maximum segment size to the lower of the request size
+ * and the DMA engine device segment size limits. In reality, with
+ * 32-bit transfers, the DMA engine can do longer segments than this
+ * but there is no way to represent that in the DMA model - if we
+ * increase this figure here, we get warnings from the DMA API debug.
+ */
+ mmc->max_seg_size = min3(mmc->max_req_size,
+ dma_get_max_seg_size(host->rx_chan->device->dev),
+ dma_get_max_seg_size(host->tx_chan->device->dev));
+
/* Request IRQ for MMC operations */
ret = devm_request_irq(&pdev->dev, host->irq, omap_hsmmc_irq, 0,
mmc_hostname(mmc), host);
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index c49d0b127fef..0b84840cdbb0 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -200,7 +200,7 @@ comment "Disk-On-Chip Device Drivers"
config MTD_DOCG3
tristate "M-Systems Disk-On-Chip G3"
select BCH
- select BCH_CONST_PARAMS
+ select BCH_CONST_PARAMS if !MTD_NAND_BCH
select BITREVERSE
---help---
This provides an MTD device driver for the M-Systems DiskOnChip
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c
index 56d39f2b22ce..89173e8a0c16 100644
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -451,6 +451,9 @@ fsl_qspi_runcmd(struct fsl_qspi *q, u8 cmd, unsigned int addr, int len)

/* trigger the LUT now */
seqid = fsl_qspi_get_seqid(q, cmd);
+ if (seqid < 0)
+ return seqid;
+
writel((seqid << QUADSPI_IPCR_SEQID_SHIFT) | len, base + QUADSPI_IPCR);

/* Wait for the interrupt. */
@@ -574,7 +577,7 @@ static void fsl_qspi_set_map_addr(struct fsl_qspi *q)
* causes the controller to clear the buffer, and use the sequence pointed
* by the QUADSPI_BFGENCR[SEQID] to initiate a read from the flash.
*/
-static void fsl_qspi_init_abh_read(struct fsl_qspi *q)
+static int fsl_qspi_init_ahb_read(struct fsl_qspi *q)
{
void __iomem *base = q->iobase;
int seqid;
@@ -592,8 +595,13 @@ static void fsl_qspi_init_abh_read(struct fsl_qspi *q)

/* Set the default lut sequence for AHB Read. */
seqid = fsl_qspi_get_seqid(q, q->nor[0].read_opcode);
+ if (seqid < 0)
+ return seqid;
+
writel(seqid << QUADSPI_BFGENCR_SEQID_SHIFT,
q->iobase + QUADSPI_BFGENCR);
+
+ return 0;
}

/* We use this function to do some basic init for spi_nor_scan(). */
@@ -647,9 +655,7 @@ static int fsl_qspi_nor_setup_last(struct fsl_qspi *q)
fsl_qspi_init_lut(q);

/* Init for AHB read */
- fsl_qspi_init_abh_read(q);
-
- return 0;
+ return fsl_qspi_init_ahb_read(q);
}

static struct of_device_id fsl_qspi_dt_ids[] = {
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index dafc042a5f17..fbb67db07c57 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -422,6 +422,34 @@ void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
}
EXPORT_SYMBOL_GPL(can_put_echo_skb);

+struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 *len_ptr)
+{
+ struct can_priv *priv = netdev_priv(dev);
+ struct sk_buff *skb = priv->echo_skb[idx];
+ struct canfd_frame *cf;
+
+ if (idx >= priv->echo_skb_max) {
+ netdev_err(dev, "%s: BUG! Trying to access can_priv::echo_skb out of bounds (%u/max %u)\n",
+ __func__, idx, priv->echo_skb_max);
+ return NULL;
+ }
+
+ if (!skb) {
+ netdev_err(dev, "%s: BUG! Trying to echo non existing skb: can_priv::echo_skb[%u]\n",
+ __func__, idx);
+ return NULL;
+ }
+
+ /* Using "struct canfd_frame::len" for the frame
+ * length is supported on both CAN and CANFD frames.
+ */
+ cf = (struct canfd_frame *)skb->data;
+ *len_ptr = cf->len;
+ priv->echo_skb[idx] = NULL;
+
+ return skb;
+}
+
/*
* Get the skb from the stack and loop it back locally
*
@@ -431,22 +459,16 @@ EXPORT_SYMBOL_GPL(can_put_echo_skb);
*/
unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx)
{
- struct can_priv *priv = netdev_priv(dev);
-
- BUG_ON(idx >= priv->echo_skb_max);
-
- if (priv->echo_skb[idx]) {
- struct sk_buff *skb = priv->echo_skb[idx];
- struct can_frame *cf = (struct can_frame *)skb->data;
- u8 dlc = cf->can_dlc;
+ struct sk_buff *skb;
+ u8 len;

- netif_rx(priv->echo_skb[idx]);
- priv->echo_skb[idx] = NULL;
+ skb = __can_get_echo_skb(dev, idx, &len);
+ if (!skb)
+ return 0;

- return dlc;
- }
+ netif_rx(skb);

- return 0;
+ return len;
}
EXPORT_SYMBOL_GPL(can_get_echo_skb);

diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index add8d8596084..da62cc910fb7 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -410,7 +410,7 @@ static int bcmgenet_mii_of_init(struct bcmgenet_priv *priv)
if (!compat)
return -ENOMEM;

- mdio_dn = of_find_compatible_node(dn, NULL, compat);
+ mdio_dn = of_get_compatible_child(dn, compat);
kfree(compat);
if (!mdio_dn) {
dev_err(kdev, "unable to find MDIO bus node\n");
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 996b3b7d93ec..ced827330d98 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -629,11 +629,19 @@ static void gem_rx_refill(struct macb *bp)

if (entry == RX_RING_SIZE - 1)
paddr |= MACB_BIT(RX_WRAP);
- bp->rx_ring[entry].addr = paddr;
bp->rx_ring[entry].ctrl = 0;
+ /* Setting addr clears RX_USED and allows reception,
+ * make sure ctrl is cleared first to avoid a race.
+ */
+ wmb();
+ bp->rx_ring[entry].addr = paddr;

/* properly align Ethernet header */
skb_reserve(skb, NET_IP_ALIGN);
+ } else {
+ bp->rx_ring[entry].ctrl = 0;
+ wmb();
+ bp->rx_ring[entry].addr &= ~MACB_BIT(RX_USED);
}
}

@@ -683,11 +691,15 @@ static int gem_rx(struct macb *bp, int budget)
rmb();

addr = desc->addr;
- ctrl = desc->ctrl;

if (!(addr & MACB_BIT(RX_USED)))
break;

+ /* Ensure ctrl is at least as up-to-date as rxused */
+ rmb();
+
+ ctrl = desc->ctrl;
+
bp->rx_tail++;
count++;

@@ -830,11 +842,15 @@ static int macb_rx(struct macb *bp, int budget)
rmb();

addr = desc->addr;
- ctrl = desc->ctrl;

if (!(addr & MACB_BIT(RX_USED)))
break;

+ /* Ensure ctrl is at least as up-to-date as addr */
+ rmb();
+
+ ctrl = desc->ctrl;
+
if (ctrl & MACB_BIT(RX_SOF)) {
if (first_frag != -1)
discard_partial_frame(bp, first_frag, tail);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 9885108fcd1b..05bed4118d14 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -498,8 +498,8 @@ static int mlx4_en_set_pauseparam(struct net_device *dev,

tx_pause = !!(pause->tx_pause);
rx_pause = !!(pause->rx_pause);
- rx_ppp = priv->prof->rx_ppp && !(tx_pause || rx_pause);
- tx_ppp = priv->prof->tx_ppp && !(tx_pause || rx_pause);
+ rx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->rx_ppp;
+ tx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->tx_ppp;

err = mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 971ba25b919d..0baa98edb66a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -518,8 +518,8 @@ struct slave_list {
struct resource_allocator {
spinlock_t alloc_lock; /* protect quotas */
union {
- int res_reserved;
- int res_port_rsvd[MLX4_MAX_PORTS];
+ unsigned int res_reserved;
+ unsigned int res_port_rsvd[MLX4_MAX_PORTS];
};
union {
int res_free;
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index 2bbd01fcb9b0..4332ebbd7162 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -808,7 +808,7 @@ __vxge_hw_vpath_fw_ver_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
- u64 data0, data1 = 0, steer_ctrl = 0;
+ u64 data0 = 0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;

status = vxge_hw_vpath_fw_api(vpath,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
index 561cb11ca58c..c6bdcefc12ea 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
@@ -883,7 +883,7 @@ static u8 qlcnic_dcb_get_capability(struct net_device *netdev, int capid,
struct qlcnic_adapter *adapter = netdev_priv(netdev);

if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
- return 0;
+ return 1;

switch (capid) {
case DCB_CAP_ATTR_PG:
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 74610f3aca9e..1ad65fefa7aa 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -272,7 +272,8 @@ struct dma_features {

/* GMAC TX FIFO is 8K, Rx FIFO is 16K */
#define BUF_SIZE_16KiB 16384
-#define BUF_SIZE_8KiB 8192
+/* RX Buffer size must be < 8191 and multiple of 4/8/16 bytes */
+#define BUF_SIZE_8KiB 8188
#define BUF_SIZE_4KiB 4096
#define BUF_SIZE_2KiB 2048

diff --git a/drivers/net/ethernet/stmicro/stmmac/descs_com.h b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
index 6f2cc78c5cf5..166add5dc40b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/descs_com.h
+++ b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
@@ -35,7 +35,7 @@
/* Enhanced descriptors */
static inline void ehn_desc_rx_set_on_ring(struct dma_desc *p, int end)
{
- p->des01.erx.buffer2_size = BUF_SIZE_8KiB - 1;
+ p->des01.erx.buffer2_size = BUF_SIZE_8KiB;
if (end)
p->des01.erx.end_ring = 1;
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
index 7d944449f5ef..9d64428a327a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
@@ -242,7 +242,7 @@ static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
{
p->des01.all_flags = 0;
p->des01.erx.own = 1;
- p->des01.erx.buffer1_size = BUF_SIZE_8KiB - 1;
+ p->des01.erx.buffer1_size = BUF_SIZE_8KiB;

if (mode == STMMAC_CHAIN_MODE)
ehn_desc_rx_set_on_chain(p, end);
diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
index 650a4be6bce5..2d1e652c3324 100644
--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
@@ -120,7 +120,7 @@ static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)
static int stmmac_set_16kib_bfsize(int mtu)
{
int ret = 0;
- if (unlikely(mtu >= BUF_SIZE_8KiB))
+ if (unlikely(mtu > BUF_SIZE_8KiB))
ret = BUF_SIZE_16KiB;
return ret;
}
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 70a495733d81..7a6d2f8c5201 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -543,8 +543,6 @@ int phy_init_hw(struct phy_device *phydev)

if (phydev->drv->soft_reset)
ret = phydev->drv->soft_reset(phydev);
- else
- ret = genphy_soft_reset(phydev);

if (ret < 0)
return ret;
diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c
index 18cc2c8d5447..45b939b1506d 100644
--- a/drivers/net/rionet.c
+++ b/drivers/net/rionet.c
@@ -215,9 +215,9 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
* it just report sending a packet to the target
* (without actual packet transfer).
*/
- dev_kfree_skb_any(skb);
ndev->stats.tx_packets++;
ndev->stats.tx_bytes += skb->len;
+ dev_kfree_skb_any(skb);
}
}

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index d42bc7a55a03..6e98f32fdf5e 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -978,8 +978,6 @@ static void team_port_disable(struct team *team,
team->en_port_count--;
team_queue_override_port_del(team, port);
team_adjust_ops(team);
- team_notify_peers(team);
- team_mcast_rejoin(team);
}

#define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index b37e06722388..48ac45f26fa3 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1415,7 +1415,7 @@ static void tun_setup(struct net_device *dev)
*/
static int tun_validate(struct nlattr *tb[], struct nlattr *data[])
{
- return -EINVAL;
+ return -EOPNOTSUPP;
}

static struct rtnl_link_ops tun_link_ops __read_mostly = {
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index b1aeef151ed4..941d73b9baff 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2615,6 +2615,7 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
struct vxlan_dev *vxlan = netdev_priv(dev), *tmp;
struct vxlan_rdst *dst = &vxlan->default_dst;
struct vxlan_fdb *f = NULL;
+ bool unregister = false;
__u32 vni;
int err;
bool use_ipv6 = false;
@@ -2766,12 +2767,11 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
err = register_netdevice(dev);
if (err)
goto errout;
+ unregister = true;

err = rtnl_configure_link(dev, NULL);
- if (err) {
- unregister_netdevice(dev);
+ if (err)
goto errout;
- }

/* notify default fdb entry */
if (f)
@@ -2780,9 +2780,16 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
list_add(&vxlan->next, &vn->vxlan_list);

return 0;
+
errout:
+ /* unregister_netdevice() destroys the default FDB entry with deletion
+ * notification. But the addition notification was not sent yet, so
+ * destroy the entry by hand here.
+ */
if (f)
vxlan_fdb_destroy(vxlan, f);
+ if (unregister)
+ unregister_netdevice(dev);
return err;
}

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index e65714168e8e..a7572cd23e68 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1057,7 +1057,10 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband,
*/
table = &lq_sta->lq;
ucode_rate = le32_to_cpu(table->rs_table[0]);
- rs_rate_from_ucode_rate(ucode_rate, info->band, &rate);
+ if (rs_rate_from_ucode_rate(ucode_rate, info->band, &rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
if (info->band == IEEE80211_BAND_5GHZ)
rate.index -= IWL_FIRST_OFDM_RATE;
mac_flags = info->status.rates[0].flags;
@@ -1161,7 +1164,10 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband,
*/
if (info->flags & IEEE80211_TX_STAT_AMPDU) {
ucode_rate = le32_to_cpu(table->rs_table[0]);
- rs_rate_from_ucode_rate(ucode_rate, info->band, &rate);
+ if (rs_rate_from_ucode_rate(ucode_rate, info->band, &rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
rs_collect_tx_data(lq_sta, curr_tbl, rate.index,
info->status.ampdu_len,
info->status.ampdu_ack_len,
@@ -1186,7 +1192,12 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband,
/* Collect data for each rate used during failed TX attempts */
for (i = 0; i <= retries; ++i) {
ucode_rate = le32_to_cpu(table->rs_table[i]);
- rs_rate_from_ucode_rate(ucode_rate, info->band, &rate);
+ if (rs_rate_from_ucode_rate(ucode_rate, info->band,
+ &rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
+
/*
* Only collect stats if retried rate is in the same RS
* table as active/search.
@@ -2677,7 +2688,10 @@ static void rs_build_rates_table_from_fixed(struct iwl_mvm *mvm,
for (i = 0; i < num_rates; i++)
lq_cmd->rs_table[i] = ucode_rate_le32;

- rs_rate_from_ucode_rate(ucode_rate, band, &rate);
+ if (rs_rate_from_ucode_rate(ucode_rate, band, &rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }

if (is_mimo(&rate))
lq_cmd->mimo_delim = num_rates - 1;
@@ -2928,8 +2942,11 @@ static void rs_program_fix_rate(struct iwl_mvm *mvm,

if (lq_sta->dbg_fixed_rate) {
struct rs_rate rate;
- rs_rate_from_ucode_rate(lq_sta->dbg_fixed_rate,
- lq_sta->band, &rate);
+ if (rs_rate_from_ucode_rate(lq_sta->dbg_fixed_rate,
+ lq_sta->band, &rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
rs_fill_lq_cmd(mvm, NULL, lq_sta, &rate);
iwl_mvm_send_lq_cmd(lq_sta->drv, &lq_sta->lq, false);
}
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index dff08a2896a3..92821f8a1501 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -467,8 +467,6 @@ static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
cardp);

- cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
-
lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret);
diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c
index d576dd6665d3..cdb1afca58b6 100644
--- a/drivers/net/wireless/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/libertas_tf/if_usb.c
@@ -610,9 +610,10 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
struct if_usb_card *cardp,
struct lbtf_private *priv)
{
- if (recvlength > LBS_CMD_BUFFER_SIZE) {
+ if (recvlength < MESSAGE_HEADER_LEN ||
+ recvlength > LBS_CMD_BUFFER_SIZE) {
lbtf_deb_usbd(&cardp->udev->dev,
- "The receive buffer is too large\n");
+ "The receive buffer is invalid: %d\n", recvlength);
kfree_skb(skb);
return;
}
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index aa41c05dc014..da5e4d24f137 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2153,6 +2153,10 @@ static int mac80211_hwsim_create_radio(int channels, const char *reg_alpha2,
schedule_timeout_interruptible(1);
}

+ tasklet_hrtimer_init(&data->beacon_timer,
+ mac80211_hwsim_beacon,
+ CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+
err = ieee80211_register_hw(hw);
if (err < 0) {
printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
@@ -2174,10 +2178,6 @@ static int mac80211_hwsim_create_radio(int channels, const char *reg_alpha2,
data->debugfs,
data, &hwsim_simulate_radar);

- tasklet_hrtimer_init(&data->beacon_timer,
- mac80211_hwsim_beacon,
- CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
-
spin_lock_bh(&hwsim_radio_lock);
list_add_tail(&data->list, &hwsim_radios);
spin_unlock_bh(&hwsim_radio_lock);
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 9985665f7397..52d245587ba3 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -767,6 +767,31 @@ struct device_node *of_get_next_available_child(const struct device_node *node,
}
EXPORT_SYMBOL(of_get_next_available_child);

+/**
+ * of_get_compatible_child - Find compatible child node
+ * @parent: parent node
+ * @compatible: compatible string
+ *
+ * Lookup child node whose compatible property contains the given compatible
+ * string.
+ *
+ * Returns a node pointer with refcount incremented, use of_node_put() on it
+ * when done; or NULL if not found.
+ */
+struct device_node *of_get_compatible_child(const struct device_node *parent,
+ const char *compatible)
+{
+ struct device_node *child;
+
+ for_each_child_of_node(parent, child) {
+ if (of_device_is_compatible(child, compatible))
+ break;
+ }
+
+ return child;
+}
+EXPORT_SYMBOL(of_get_compatible_child);
+
/**
* of_get_child_by_name - Find the child node by name for a given parent
* @node: parent node
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index e1e7026b838d..0dc5f2bece17 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -646,7 +646,7 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev)
* All PCIe functions are in one slot, remove one function will remove
* the whole slot, so just wait until we are the last function left.
*/
- if (!list_is_last(&pdev->bus_list, &parent->subordinate->devices))
+ if (!list_empty(&parent->subordinate->devices))
goto out;

link = parent->link_state;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 35a6fc073730..f5d1f51101cf 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3068,7 +3068,11 @@ static void disable_igfx_irq(struct pci_dev *dev)

pci_iounmap(dev, regs);
}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0042, disable_igfx_irq);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0046, disable_igfx_irq);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x004a, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0106, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);

diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 8bd76c9ba21c..74177dcb2646 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -25,9 +25,6 @@ static void pci_stop_dev(struct pci_dev *dev)
device_release_driver(&dev->dev);
dev->is_added = 0;
}
-
- if (dev->bus->self)
- pcie_aspm_exit_link_state(dev);
}

static void pci_destroy_dev(struct pci_dev *dev)
@@ -41,6 +38,7 @@ static void pci_destroy_dev(struct pci_dev *dev)
list_del(&dev->bus_list);
up_write(&pci_bus_sem);

+ pcie_aspm_exit_link_state(dev);
pci_free_resources(dev);
put_device(&dev->dev);
}
diff --git a/drivers/pcmcia/ricoh.h b/drivers/pcmcia/ricoh.h
index 01098c841f87..8ac7b138c094 100644
--- a/drivers/pcmcia/ricoh.h
+++ b/drivers/pcmcia/ricoh.h
@@ -119,6 +119,10 @@
#define RL5C4XX_MISC_CONTROL 0x2F /* 8 bit */
#define RL5C4XX_ZV_ENABLE 0x08

+/* Misc Control 3 Register */
+#define RL5C4XX_MISC3 0x00A2 /* 16 bit */
+#define RL5C47X_MISC3_CB_CLKRUN_DIS BIT(1)
+
#ifdef __YENTA_H

#define rl_misc(socket) ((socket)->private[0])
@@ -156,6 +160,35 @@ static void ricoh_set_zv(struct yenta_socket *socket)
}
}

+static void ricoh_set_clkrun(struct yenta_socket *socket, bool quiet)
+{
+ u16 misc3;
+
+ /*
+ * RL5C475II likely has this setting, too, however no datasheet
+ * is publicly available for this chip
+ */
+ if (socket->dev->device != PCI_DEVICE_ID_RICOH_RL5C476 &&
+ socket->dev->device != PCI_DEVICE_ID_RICOH_RL5C478)
+ return;
+
+ if (socket->dev->revision < 0x80)
+ return;
+
+ misc3 = config_readw(socket, RL5C4XX_MISC3);
+ if (misc3 & RL5C47X_MISC3_CB_CLKRUN_DIS) {
+ if (!quiet)
+ dev_dbg(&socket->dev->dev,
+ "CLKRUN feature already disabled\n");
+ } else if (disable_clkrun) {
+ if (!quiet)
+ dev_info(&socket->dev->dev,
+ "Disabling CLKRUN feature\n");
+ misc3 |= RL5C47X_MISC3_CB_CLKRUN_DIS;
+ config_writew(socket, RL5C4XX_MISC3, misc3);
+ }
+}
+
static void ricoh_save_state(struct yenta_socket *socket)
{
rl_misc(socket) = config_readw(socket, RL5C4XX_MISC);
@@ -172,6 +205,7 @@ static void ricoh_restore_state(struct yenta_socket *socket)
config_writew(socket, RL5C4XX_16BIT_IO_0, rl_io(socket));
config_writew(socket, RL5C4XX_16BIT_MEM_0, rl_mem(socket));
config_writew(socket, RL5C4XX_CONFIG, rl_config(socket));
+ ricoh_set_clkrun(socket, true);
}


@@ -197,6 +231,7 @@ static int ricoh_override(struct yenta_socket *socket)
config_writew(socket, RL5C4XX_CONFIG, config);

ricoh_set_zv(socket);
+ ricoh_set_clkrun(socket, false);

return 0;
}
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 946f90ef6020..04bf186886d6 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -26,7 +26,8 @@

static bool disable_clkrun;
module_param(disable_clkrun, bool, 0444);
-MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option");
+MODULE_PARM_DESC(disable_clkrun,
+ "If PC card doesn't function properly, please try this option (TI and Ricoh bridges only)");

static bool isa_probe = 1;
module_param(isa_probe, bool, 0444);
diff --git a/drivers/power/max8998_charger.c b/drivers/power/max8998_charger.c
index 5017470c2fc9..b0f4fe5c157b 100644
--- a/drivers/power/max8998_charger.c
+++ b/drivers/power/max8998_charger.c
@@ -78,7 +78,7 @@ static int max8998_battery_get_property(struct power_supply *psy,
static int max8998_battery_probe(struct platform_device *pdev)
{
struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
- struct max8998_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct max8998_platform_data *pdata = iodev->pdata;
struct max8998_battery_data *max8998;
struct i2c_client *i2c;
int ret = 0;
diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 965a9da70867..4f4c336e9a64 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -213,7 +213,7 @@ static int hid_rtc_read_time(struct device *dev, struct rtc_time *tm)
/* get a report with all values through requesting one value */
sensor_hub_input_attr_get_raw_value(time_state->common_attributes.hsdev,
HID_USAGE_SENSOR_TIME, hid_time_addresses[0],
- time_state->info[0].report_id);
+ time_state->info[0].report_id, false);
/* wait for all values (event) */
ret = wait_for_completion_killable_timeout(
&time_state->comp_last_time, HZ*6);
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 0aa661f3e453..9ce22828d71e 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -608,7 +608,8 @@ static int _schedule_lcu_update(struct alias_lcu *lcu,

int dasd_alias_add_device(struct dasd_device *device)
{
- struct dasd_eckd_private *private = device->private;
+ struct dasd_eckd_private *private =
+ (struct dasd_eckd_private *)device->private;
__u8 uaddr = private->uid.real_unit_addr;
struct alias_lcu *lcu = private->lcu;
unsigned long flags;
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index b6ade163445c..bf6cab931472 100644
--- a/drivers/s390/kvm/virtio_ccw.c
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -57,6 +57,7 @@ struct virtio_ccw_device {
int err;
wait_queue_head_t wait_q;
spinlock_t lock;
+ struct mutex io_lock; /* Serializes I/O requests */
struct list_head virtqueues;
unsigned long indicators;
unsigned long indicators2;
@@ -282,6 +283,7 @@ static int ccw_io_helper(struct virtio_ccw_device *vcdev,
unsigned long flags;
int flag = intparm & VIRTIO_CCW_INTPARM_MASK;

+ mutex_lock(&vcdev->io_lock);
do {
spin_lock_irqsave(get_ccwdev_lock(vcdev->cdev), flags);
ret = ccw_device_start(vcdev->cdev, ccw, intparm, 0, 0);
@@ -294,7 +296,9 @@ static int ccw_io_helper(struct virtio_ccw_device *vcdev,
cpu_relax();
} while (ret == -EBUSY);
wait_event(vcdev->wait_q, doing_io(vcdev, flag) == 0);
- return ret ? ret : vcdev->err;
+ ret = ret ? ret : vcdev->err;
+ mutex_unlock(&vcdev->io_lock);
+ return ret;
}

static void virtio_ccw_drop_indicator(struct virtio_ccw_device *vcdev,
@@ -741,6 +745,7 @@ static void virtio_ccw_get_config(struct virtio_device *vdev,
int ret;
struct ccw1 *ccw;
void *config_area;
+ unsigned long flags;

ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
if (!ccw)
@@ -759,11 +764,13 @@ static void virtio_ccw_get_config(struct virtio_device *vdev,
if (ret)
goto out_free;

+ spin_lock_irqsave(&vcdev->lock, flags);
memcpy(vcdev->config, config_area, offset + len);
- if (buf)
- memcpy(buf, &vcdev->config[offset], len);
if (vcdev->config_ready < offset + len)
vcdev->config_ready = offset + len;
+ spin_unlock_irqrestore(&vcdev->lock, flags);
+ if (buf)
+ memcpy(buf, config_area + offset, len);

out_free:
kfree(config_area);
@@ -777,6 +784,7 @@ static void virtio_ccw_set_config(struct virtio_device *vdev,
struct virtio_ccw_device *vcdev = to_vc_device(vdev);
struct ccw1 *ccw;
void *config_area;
+ unsigned long flags;

ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
if (!ccw)
@@ -789,9 +797,11 @@ static void virtio_ccw_set_config(struct virtio_device *vdev,
/* Make sure we don't overwrite fields. */
if (vcdev->config_ready < offset)
virtio_ccw_get_config(vdev, 0, NULL, offset);
+ spin_lock_irqsave(&vcdev->lock, flags);
memcpy(&vcdev->config[offset], buf, len);
/* Write the config area to the host. */
memcpy(config_area, vcdev->config, sizeof(vcdev->config));
+ spin_unlock_irqrestore(&vcdev->lock, flags);
ccw->cmd_code = CCW_CMD_WRITE_CONF;
ccw->flags = 0;
ccw->count = offset + len;
@@ -1080,6 +1090,7 @@ static int virtio_ccw_online(struct ccw_device *cdev)
init_waitqueue_head(&vcdev->wait_q);
INIT_LIST_HEAD(&vcdev->virtqueues);
spin_lock_init(&vcdev->lock);
+ mutex_init(&vcdev->io_lock);

spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
dev_set_drvdata(&cdev->dev, vcdev);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 34209b33c70e..40fec0c463ea 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -4414,8 +4414,8 @@ static int qeth_snmp_command_cb(struct qeth_card *card,
{
struct qeth_ipa_cmd *cmd;
struct qeth_arp_query_info *qinfo;
- struct qeth_snmp_cmd *snmp;
unsigned char *data;
+ void *snmp_data;
__u16 data_len;

QETH_CARD_TEXT(card, 3, "snpcmdcb");
@@ -4423,7 +4423,6 @@ static int qeth_snmp_command_cb(struct qeth_card *card,
cmd = (struct qeth_ipa_cmd *) sdata;
data = (unsigned char *)((char *)cmd - reply->offset);
qinfo = (struct qeth_arp_query_info *) reply->param;
- snmp = &cmd->data.setadapterparms.data.snmp;

if (cmd->hdr.return_code) {
QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
@@ -4436,10 +4435,15 @@ static int qeth_snmp_command_cb(struct qeth_card *card,
return 0;
}
data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
- if (cmd->data.setadapterparms.hdr.seq_no == 1)
- data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
- else
- data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
+ if (cmd->data.setadapterparms.hdr.seq_no == 1) {
+ snmp_data = &cmd->data.setadapterparms.data.snmp;
+ data_len -= offsetof(struct qeth_ipa_cmd,
+ data.setadapterparms.data.snmp);
+ } else {
+ snmp_data = &cmd->data.setadapterparms.data.snmp.request;
+ data_len -= offsetof(struct qeth_ipa_cmd,
+ data.setadapterparms.data.snmp.request);
+ }

/* check if there is enough room in userspace */
if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
@@ -4452,16 +4456,9 @@ static int qeth_snmp_command_cb(struct qeth_card *card,
QETH_CARD_TEXT_(card, 4, "sseqn%i",
cmd->data.setadapterparms.hdr.seq_no);
/*copy entries to user buffer*/
- if (cmd->data.setadapterparms.hdr.seq_no == 1) {
- memcpy(qinfo->udata + qinfo->udata_offset,
- (char *)snmp,
- data_len + offsetof(struct qeth_snmp_cmd, data));
- qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
- } else {
- memcpy(qinfo->udata + qinfo->udata_offset,
- (char *)&snmp->request, data_len);
- }
+ memcpy(qinfo->udata + qinfo->udata_offset, snmp_data, data_len);
qinfo->udata_offset += data_len;
+
/* check if all replies received ... */
QETH_CARD_TEXT_(card, 4, "srtot%i",
cmd->data.setadapterparms.hdr.used_total);
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 784ba56bb5d3..ac58a8132402 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -856,7 +856,10 @@ static int __qeth_l2_open(struct net_device *dev)

if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
napi_enable(&card->napi);
+ local_bh_disable();
napi_schedule(&card->napi);
+ /* kick-start the NAPI softirq: */
+ local_bh_enable();
} else
rc = -EIO;
return rc;
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 4ba6cf34e522..4276369d3da1 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3127,7 +3127,10 @@ static int __qeth_l3_open(struct net_device *dev)

if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
napi_enable(&card->napi);
+ local_bh_disable();
napi_schedule(&card->napi);
+ /* kick-start the NAPI softirq: */
+ local_bh_enable();
} else
rc = -EIO;
return rc;
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index a190ab663133..8fbf01ad2890 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -2201,7 +2201,8 @@ static int _bnx2fc_create(struct net_device *netdev,
interface = bnx2fc_interface_create(hba, netdev, fip_mode);
if (!interface) {
printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
- goto ifput_err;
+ rc = -ENOMEM;
+ goto netdev_err;
}

if (netdev->priv_flags & IFF_802_1Q_VLAN) {
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index 55548dc5cec3..cc674370b4b0 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -1316,6 +1316,7 @@ static int esp_data_bytes_sent(struct esp *esp, struct esp_cmd_entry *ent,

bytes_sent = esp->data_dma_len;
bytes_sent -= ecount;
+ bytes_sent -= esp->send_cmd_residual;

if (!(ent->flags & ESP_CMD_FLAG_WRITE))
bytes_sent -= fifo_cnt;
diff --git a/drivers/scsi/esp_scsi.h b/drivers/scsi/esp_scsi.h
index cd68805e8d78..20b229b53639 100644
--- a/drivers/scsi/esp_scsi.h
+++ b/drivers/scsi/esp_scsi.h
@@ -524,6 +524,8 @@ struct esp {

void *dma;
int dmarev;
+
+ u32 send_cmd_residual;
};

/* A front-end driver for the ESP chip should do the following in
diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c
index c1497fddf0b4..364eb9969e8c 100644
--- a/drivers/scsi/mac_esp.c
+++ b/drivers/scsi/mac_esp.c
@@ -426,6 +426,8 @@ static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count,
scsi_esp_cmd(esp, ESP_CMD_TI);
}
}
+
+ esp->send_cmd_residual = esp_count;
}

static int mac_esp_irq_pending(struct esp *esp)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index ec08cc55ae4d..c533c9ee80fa 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -4667,7 +4667,7 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
* The next call disables the board
* completely.
*/
- ha->isp_ops->reset_adapter(vha);
+ qla2x00_abort_isp_cleanup(vha);
vha->flags.online = 0;
clear_bit(ISP_ABORT_RETRY,
&vha->dpc_flags);
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 1c33a77db5c2..50f5e6043268 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -3264,10 +3264,7 @@ qla2x00_set_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id,
mcp->mb[0] = MBC_PORT_PARAMS;
mcp->mb[1] = loop_id;
mcp->mb[2] = BIT_0;
- if (IS_CNA_CAPABLE(vha->hw))
- mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0);
- else
- mcp->mb[3] = port_speed & (BIT_2|BIT_1|BIT_0);
+ mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0);
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_1|MBX_0;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index f88e3748cb18..184ffbc92eba 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -129,6 +129,7 @@ static DEFINE_MUTEX(sd_ref_mutex);

static struct kmem_cache *sd_cdb_cache;
static mempool_t *sd_cdb_pool;
+static mempool_t *sd_page_pool;

static const char *sd_cache_types[] = {
"write through", "none", "write back",
@@ -704,9 +705,10 @@ static int sd_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq)

memset(rq->cmd, 0, rq->cmd_len);

- page = alloc_page(GFP_ATOMIC | __GFP_ZERO);
+ page = mempool_alloc(sd_page_pool, GFP_ATOMIC);
if (!page)
return BLKPREP_DEFER;
+ clear_highpage(page);

switch (sdkp->provisioning_mode) {
case SD_LBP_UNMAP:
@@ -758,7 +760,7 @@ static int sd_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq)

out:
if (ret != BLKPREP_OK)
- __free_page(page);
+ mempool_free(page, sd_page_pool);
return ret;
}

@@ -3260,6 +3262,13 @@ static int __init init_sd(void)
goto err_out_cache;
}

+ sd_page_pool = mempool_create_page_pool(SD_MEMPOOL_SIZE, 0);
+ if (!sd_page_pool) {
+ printk(KERN_ERR "sd: can't init discard page pool\n");
+ err = -ENOMEM;
+ goto err_out_ppool;
+ }
+
err = scsi_register_driver(&sd_template.gendrv);
if (err)
goto err_out_driver;
@@ -3267,6 +3276,9 @@ static int __init init_sd(void)
return 0;

err_out_driver:
+ mempool_destroy(sd_page_pool);
+
+err_out_ppool:
mempool_destroy(sd_cdb_pool);

err_out_cache:
@@ -3293,6 +3305,7 @@ static void __exit exit_sd(void)

scsi_unregister_driver(&sd_template.gendrv);
mempool_destroy(sd_cdb_pool);
+ mempool_destroy(sd_page_pool);
kmem_cache_destroy(sd_cdb_cache);

class_unregister(&sd_disk_class);
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c
index e53bff9f56b7..85f9cb77f08e 100644
--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -766,8 +766,8 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)

i = platform_get_irq(pdev, 0);
if (i < 0) {
- dev_err(&pdev->dev, "cannot get platform IRQ\n");
- ret = -ENOENT;
+ dev_err(&pdev->dev, "cannot get IRQ\n");
+ ret = i;
goto err1;
}

diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 83a96bcb21b6..325950a0bd4b 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -5486,6 +5486,9 @@ static int ni_valid_rtsi_output_source(struct comedi_device *dev, unsigned chan,
case NI_RTSI_OUTPUT_G_GATE0:
case NI_RTSI_OUTPUT_RGOUT0:
case NI_RTSI_OUTPUT_RTSI_BRD_0:
+ case NI_RTSI_OUTPUT_RTSI_BRD_0 + 1:
+ case NI_RTSI_OUTPUT_RTSI_BRD_0 + 2:
+ case NI_RTSI_OUTPUT_RTSI_BRD_0 + 3:
return 1;
break;
case NI_RTSI_OUTPUT_RTSI_OSC:
@@ -5513,12 +5516,19 @@ static int ni_set_rtsi_routing(struct comedi_device *dev, unsigned chan,
RTSI_Trig_Output_Bits(chan, source);
devpriv->stc_writew(dev, devpriv->rtsi_trig_a_output_reg,
RTSI_Trig_A_Output_Register);
- } else if (chan < 8) {
+ } else if (chan < num_configurable_rtsi_channels(dev)) {
devpriv->rtsi_trig_b_output_reg &= ~RTSI_Trig_Output_Mask(chan);
devpriv->rtsi_trig_b_output_reg |=
RTSI_Trig_Output_Bits(chan, source);
devpriv->stc_writew(dev, devpriv->rtsi_trig_b_output_reg,
RTSI_Trig_B_Output_Register);
+ } else if (chan != old_RTSI_clock_channel) {
+ /* probably should never reach this, since the
+ * ni_valid_rtsi_output_source above errors out if chan is too
+ * high
+ */
+ dev_err(dev->class_dev, "%s: unknown rtsi channel\n", __func__);
+ return -EINVAL;
}
return 2;
}
@@ -5533,12 +5543,12 @@ static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan)
} else if (chan < num_configurable_rtsi_channels(dev)) {
return RTSI_Trig_Output_Source(chan,
devpriv->rtsi_trig_b_output_reg);
- } else {
- if (chan == old_RTSI_clock_channel)
- return NI_RTSI_OUTPUT_RTSI_OSC;
- printk("%s: bug! should never get here?\n", __func__);
- return 0;
+ } else if (chan == old_RTSI_clock_channel) {
+ return NI_RTSI_OUTPUT_RTSI_OSC;
}
+
+ dev_err(dev->class_dev, "%s: unknown rtsi channel\n", __func__);
+ return -EINVAL;
}

static int ni_rtsi_insn_config(struct comedi_device *dev,
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index b3bbec0a0d23..21f4e7ef14c6 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -633,6 +633,19 @@ static int daqp_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
return 0;
}

+static int daqp_ao_empty(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned long context)
+{
+ unsigned int status;
+
+ status = inb(dev->iobase + DAQP_AUX);
+ if ((status & DAQP_AUX_DA_BUFFER) == 0)
+ return 0;
+ return -EBUSY;
+}
+
static int daqp_ao_insn_write(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
@@ -640,7 +653,6 @@ static int daqp_ao_insn_write(struct comedi_device *dev,
{
struct daqp_private *devpriv = dev->private;
unsigned int chan = CR_CHAN(insn->chanspec);
- unsigned int val;
int i;

if (devpriv->stop)
@@ -649,8 +661,15 @@ static int daqp_ao_insn_write(struct comedi_device *dev,
/* Make sure D/A update mode is direct update */
outb(0, dev->iobase + DAQP_AUX);

- for (i = 0; i > insn->n; i++) {
- val = data[0];
+ for (i = 0; i < insn->n; i++) {
+ unsigned val = data[i];
+ int ret;
+
+ /* D/A transfer rate is about 8ms */
+ ret = comedi_timeout(dev, s, insn, daqp_ao_empty, 0);
+ if (ret)
+ return ret;
+
val &= 0x0fff;
val ^= 0x0800; /* Flip the sign */
val |= (chan << 12);
diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c
index 377efb88676f..1027786bcbb0 100644
--- a/drivers/staging/rtl8712/mlme_linux.c
+++ b/drivers/staging/rtl8712/mlme_linux.c
@@ -153,7 +153,7 @@ void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
p = buff;
p += sprintf(p, "ASSOCINFO(ReqIEs=");
len = sec_ie[1] + 2;
- len = (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX - 1;
+ len = (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
for (i = 0; i < len; i++)
p += sprintf(p, "%02x", sec_ie[i]);
p += sprintf(p, ")");
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index 02339e100014..c0ece79c7821 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -1373,7 +1373,7 @@ sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
u8 *out_ie, uint in_len)
{
u8 authmode = 0, securitytype, match;
- u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
+ u8 sec_ie[IW_CUSTOM_MAX], uncst_oui[4], bkup_ie[255];
u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
uint ielength, cnt, remove_cnt;
int iEntry;
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 8803e693fe68..7a1625d5780b 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -351,8 +351,8 @@ static irqreturn_t rcar_thermal_irq(int irq, void *data)
rcar_thermal_for_each_priv(priv, common) {
if (rcar_thermal_had_changed(priv, status)) {
rcar_thermal_irq_disable(priv);
- schedule_delayed_work(&priv->work,
- msecs_to_jiffies(300));
+ queue_delayed_work(system_freezable_wq, &priv->work,
+ msecs_to_jiffies(300));
}
}

@@ -462,9 +462,10 @@ static int rcar_thermal_probe(struct platform_device *pdev)

error_unregister:
rcar_thermal_for_each_priv(priv, common) {
- thermal_zone_device_unregister(priv->zone);
if (rcar_has_irq_support(priv))
rcar_thermal_irq_disable(priv);
+ cancel_delayed_work_sync(&priv->work);
+ thermal_zone_device_unregister(priv->zone);
}

pm_runtime_put(dev);
@@ -480,9 +481,9 @@ static int rcar_thermal_remove(struct platform_device *pdev)
struct rcar_thermal_priv *priv;

rcar_thermal_for_each_priv(priv, common) {
- thermal_zone_device_unregister(priv->zone);
if (rcar_has_irq_support(priv))
rcar_thermal_irq_disable(priv);
+ thermal_zone_device_unregister(priv->zone);
}

pm_runtime_put(dev);
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index a260cde743e2..8b6638fc2d57 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -133,6 +133,11 @@ static void kgdboc_unregister_kbd(void)

static int kgdboc_option_setup(char *opt)
{
+ if (!opt) {
+ pr_err("kgdboc: config string not provided\n");
+ return -EINVAL;
+ }
+
if (strlen(opt) >= MAX_CONFIG_LEN) {
printk(KERN_ERR "kgdboc: config string too long\n");
return -ENOSPC;
@@ -247,7 +252,7 @@ static void kgdboc_put_char(u8 chr)

static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
{
- int len = strlen(kmessage);
+ size_t len = strlen(kmessage);

if (len >= MAX_CONFIG_LEN) {
printk(KERN_ERR "kgdboc: config string too long\n");
@@ -269,7 +274,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)

strcpy(config, kmessage);
/* Chop out \n char as a result of echo */
- if (config[len - 1] == '\n')
+ if (len && config[len - 1] == '\n')
config[len - 1] = '\0';

if (configured == 1)
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 7107991dc4cc..ee6a21308649 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -327,7 +327,7 @@ speed_t tty_termios_baud_rate(struct ktermios *termios)
else
cbaud += 15;
}
- return baud_table[cbaud];
+ return cbaud >= n_baud_table ? 0 : baud_table[cbaud];
}
EXPORT_SYMBOL(tty_termios_baud_rate);

@@ -363,7 +363,7 @@ speed_t tty_termios_input_baud_rate(struct ktermios *termios)
else
cbaud += 15;
}
- return baud_table[cbaud];
+ return cbaud >= n_baud_table ? 0 : baud_table[cbaud];
#else
return tty_termios_baud_rate(termios);
#endif
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 452cf8e98131..e0450c6924d1 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -852,14 +852,17 @@ int __uio_register_device(struct module *owner,
if (ret)
goto err_uio_dev_add_attributes;

+ info->uio_dev = idev;
+
if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) {
ret = devm_request_irq(idev->dev, info->irq, uio_interrupt,
info->irq_flags, info->name, idev);
- if (ret)
+ if (ret) {
+ info->uio_dev = NULL;
goto err_request_irq;
+ }
}

- info->uio_dev = idev;
return 0;

err_request_irq:
diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h
index 9ecb598e48f0..a5557c70034a 100644
--- a/drivers/usb/chipidea/otg.h
+++ b/drivers/usb/chipidea/otg.h
@@ -20,7 +20,8 @@ void ci_handle_vbus_change(struct ci_hdrc *ci);
static inline void ci_otg_queue_work(struct ci_hdrc *ci)
{
disable_irq_nosync(ci->irq);
- queue_work(ci->wq, &ci->work);
+ if (queue_work(ci->wq, &ci->work) == false)
+ enable_irq(ci->irq);
}

#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 530f1b36d4fe..7109eeaa2288 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1729,6 +1729,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x0572, 0x1328), /* Shiro / Aztech USB MODEM UM-3100 */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
+ { USB_DEVICE(0x0572, 0x1349), /* Hiro (Conexant) USB MODEM H50228 */
+ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
+ },
{ USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
.driver_info = QUIRK_CONTROL_LINE_STATE, },
{ USB_DEVICE(0x2184, 0x001c) }, /* GW Instek AFG-2225 */
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index a8ee99e56071..cec7a62b4028 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2211,7 +2211,7 @@ static int usb_enumerate_device_otg(struct usb_device *udev)
/* descriptor may appear anywhere in config */
if (__usb_get_extra_descriptor (udev->rawdescriptors[0],
le16_to_cpu(udev->config[0].desc.wTotalLength),
- USB_DT_OTG, (void **) &desc) == 0) {
+ USB_DT_OTG, (void **) &desc, sizeof(*desc)) == 0) {
if (desc->bmAttributes & USB_OTG_HNP) {
unsigned port1 = udev->portnum;

@@ -2671,6 +2671,7 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
int i, status;
u16 portchange, portstatus;
struct usb_port *port_dev = hub->ports[port1 - 1];
+ int reset_recovery_time;

if (!hub_is_superspeed(hub->hdev)) {
if (warm) {
@@ -2724,7 +2725,9 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
USB_PORT_FEAT_C_BH_PORT_RESET);
usb_clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_PORT_LINK_STATE);
- usb_clear_port_feature(hub->hdev, port1,
+
+ if (udev)
+ usb_clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_CONNECTION);

/*
@@ -2760,7 +2763,14 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
done:
if (status == 0) {
/* TRSTRCY = 10 ms; plus some extra */
- msleep(10 + 40);
+ reset_recovery_time = 10 + 40;
+
+ /* Hub needs extra delay after resetting its port. */
+ if (hub->hdev->quirks & USB_QUIRK_HUB_SLOW_RESET)
+ reset_recovery_time += 100;
+
+ msleep(reset_recovery_time);
+
if (udev) {
struct usb_hcd *hcd = bus_to_hcd(udev->bus);

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 7b722da17880..a11668825749 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -64,6 +64,9 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Microsoft LifeCam-VX700 v2.0 */
{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },

+ /* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */
+ { USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */
{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
{ USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
@@ -182,6 +185,10 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Midiman M-Audio Keystation 88es */
{ USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },

+ /* SanDisk Ultra Fit and Ultra Flair */
+ { USB_DEVICE(0x0781, 0x5583), .driver_info = USB_QUIRK_NO_LPM },
+ { USB_DEVICE(0x0781, 0x5591), .driver_info = USB_QUIRK_NO_LPM },
+
/* M-Systems Flash Disk Pioneers */
{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },

@@ -229,6 +236,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

+ /* Terminus Technology Inc. Hub */
+ { USB_DEVICE(0x1a40, 0x0101), .driver_info = USB_QUIRK_HUB_SLOW_RESET },
+
/* Corsair K70 RGB */
{ USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT },

@@ -240,6 +250,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT |
USB_QUIRK_DELAY_CTRL_MSG },

+ /* Corsair K70 LUX RGB */
+ { USB_DEVICE(0x1b1c, 0x1b33), .driver_info = USB_QUIRK_DELAY_INIT },
+
/* Corsair K70 LUX */
{ USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },

@@ -260,6 +273,11 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x2040, 0x7200), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },

+ /* Raydium Touchscreen */
+ { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM },
+
+ { USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM },
+
/* DJI CineSSD */
{ USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index d885a07be4df..b35bde5e5e11 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -663,14 +663,14 @@ EXPORT_SYMBOL_GPL(usb_get_current_frame_number);
*/

int __usb_get_extra_descriptor(char *buffer, unsigned size,
- unsigned char type, void **ptr)
+ unsigned char type, void **ptr, size_t minsize)
{
struct usb_descriptor_header *header;

while (size >= sizeof(struct usb_descriptor_header)) {
header = (struct usb_descriptor_header *)buffer;

- if (header->bLength < 2) {
+ if (header->bLength < 2 || header->bLength > size) {
printk(KERN_ERR
"%s: bogus descriptor, type %d length %d\n",
usbcore_name,
@@ -679,7 +679,7 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size,
return -1;
}

- if (header->bDescriptorType == type) {
+ if (header->bDescriptorType == type && header->bLength >= minsize) {
*ptr = header;
return 0;
}
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index f8a20b88ccfd..1f45a444c07f 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1346,9 +1346,6 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
memset(&params, 0x00, sizeof(params));

if (value) {
- if (dep->flags & DWC3_EP_STALL)
- return 0;
-
if (!protocol && ((dep->direction && dep->flags & DWC3_EP_BUSY) ||
(!list_empty(&dep->req_queued) ||
!list_empty(&dep->request_list)))) {
@@ -1365,9 +1362,6 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
else
dep->flags |= DWC3_EP_STALL;
} else {
- if (!(dep->flags & DWC3_EP_STALL))
- return 0;
-
ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,
DWC3_DEPCMD_CLEARSTALL, &params);
if (ret)
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index 28e4fc957026..5fd9135b72fd 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -2256,8 +2256,10 @@ static int __init struct_udc_setup(struct fsl_udc *udc,
udc->phy_mode = pdata->phy_mode;

udc->eps = kzalloc(sizeof(struct fsl_ep) * udc->max_ep, GFP_KERNEL);
- if (!udc->eps)
- return -1;
+ if (!udc->eps) {
+ ERR("kmalloc udc endpoint status failed\n");
+ goto eps_alloc_failed;
+ }

/* initialized QHs, take care of alignment */
size = udc->max_ep * sizeof(struct ep_queue_head);
@@ -2271,8 +2273,7 @@ static int __init struct_udc_setup(struct fsl_udc *udc,
&udc->ep_qh_dma, GFP_KERNEL);
if (!udc->ep_qh) {
ERR("malloc QHs for udc failed\n");
- kfree(udc->eps);
- return -1;
+ goto ep_queue_alloc_failed;
}

udc->ep_qh_size = size;
@@ -2281,8 +2282,17 @@ static int __init struct_udc_setup(struct fsl_udc *udc,
/* FIXME: fsl_alloc_request() ignores ep argument */
udc->status_req = container_of(fsl_alloc_request(NULL, GFP_KERNEL),
struct fsl_req, req);
+ if (!udc->status_req) {
+ ERR("kzalloc for udc status request failed\n");
+ goto udc_status_alloc_failed;
+ }
+
/* allocate a small amount of memory to get valid address */
udc->status_req->req.buf = kmalloc(8, GFP_KERNEL);
+ if (!udc->status_req->req.buf) {
+ ERR("kzalloc for udc request buffer failed\n");
+ goto udc_req_buf_alloc_failed;
+ }

udc->resume_state = USB_STATE_NOTATTACHED;
udc->usb_state = USB_STATE_POWERED;
@@ -2290,6 +2300,18 @@ static int __init struct_udc_setup(struct fsl_udc *udc,
udc->remote_wakeup = 0; /* default to 0 on reset */

return 0;
+
+udc_req_buf_alloc_failed:
+ kfree(udc->status_req);
+udc_status_alloc_failed:
+ kfree(udc->ep_qh);
+ udc->ep_qh_size = 0;
+ep_queue_alloc_failed:
+ kfree(udc->eps);
+eps_alloc_failed:
+ udc->phy_mode = 0;
+ return -1;
+
}

/*----------------------------------------------------------------
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index d0d8fadf7066..1931a2b029eb 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -654,7 +654,7 @@ static int hwahc_security_create(struct hwahc *hwahc)
top = itr + itr_size;
result = __usb_get_extra_descriptor(usb_dev->rawdescriptors[index],
le16_to_cpu(usb_dev->actconfig->desc.wTotalLength),
- USB_DT_SECURITY, (void **) &secd);
+ USB_DT_SECURITY, (void **) &secd, sizeof(*secd));
if (result == -1) {
dev_warn(dev, "BUG? WUSB host has no security descriptors\n");
return 0;
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index f16bf70b54ba..fd697bba07ff 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -620,7 +620,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
status |= USB_PORT_STAT_SUSPEND;
}
if ((raw_port_status & PORT_PLS_MASK) == XDEV_RESUME &&
- !DEV_SUPERSPEED(raw_port_status)) {
+ !DEV_SUPERSPEED(raw_port_status) && hcd->speed < HCD_USB3) {
if ((raw_port_status & PORT_RESET) ||
!(raw_port_status & PORT_PE))
return 0xffffffff;
@@ -666,7 +666,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
time_left = wait_for_completion_timeout(
&bus_state->rexit_done[wIndex],
msecs_to_jiffies(
- XHCI_MAX_REXIT_TIMEOUT));
+ XHCI_MAX_REXIT_TIMEOUT_MS));
spin_lock_irqsave(&xhci->lock, flags);

if (time_left) {
@@ -680,7 +680,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
} else {
int port_status = readl(port_array[wIndex]);
xhci_warn(xhci, "Port resume took longer than %i msec, port status = 0x%x\n",
- XHCI_MAX_REXIT_TIMEOUT,
+ XHCI_MAX_REXIT_TIMEOUT_MS,
port_status);
status |= USB_PORT_STAT_SUSPEND;
clear_bit(wIndex, &bus_state->rexit_ports);
@@ -1174,13 +1174,16 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
__le32 __iomem **port_array;
struct xhci_bus_state *bus_state;
unsigned long flags;
+ u32 portsc_buf[USB_MAXCHILDREN];
+ bool wake_enabled;

max_ports = xhci_get_ports(hcd, &port_array);
bus_state = &xhci->bus_state[hcd_index(hcd)];
+ wake_enabled = hcd->self.root_hub->do_remote_wakeup;

spin_lock_irqsave(&xhci->lock, flags);

- if (hcd->self.root_hub->do_remote_wakeup) {
+ if (wake_enabled) {
if (bus_state->resuming_ports || /* USB2 */
bus_state->port_remote_wakeup) { /* USB3 */
spin_unlock_irqrestore(&xhci->lock, flags);
@@ -1188,26 +1191,37 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
return -EBUSY;
}
}
-
- port_index = max_ports;
+ /*
+ * Prepare ports for suspend, but don't write anything before all ports
+ * are checked and we know bus suspend can proceed
+ */
bus_state->bus_suspended = 0;
+ port_index = max_ports;
while (port_index--) {
- /* suspend the port if the port is not suspended */
u32 t1, t2;
- int slot_id;

t1 = readl(port_array[port_index]);
t2 = xhci_port_state_to_neutral(t1);
+ portsc_buf[port_index] = 0;

- if ((t1 & PORT_PE) && !(t1 & PORT_PLS_MASK)) {
- xhci_dbg(xhci, "port %d not suspended\n", port_index);
- slot_id = xhci_find_slot_id_by_port(hcd, xhci,
- port_index + 1);
- if (slot_id) {
+ /* Bail out if a USB3 port has a new device in link training */
+ if ((hcd->speed >= HCD_USB3) &&
+ (t1 & PORT_PLS_MASK) == XDEV_POLLING) {
+ bus_state->bus_suspended = 0;
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_dbg(xhci, "Bus suspend bailout, port in polling\n");
+ return -EBUSY;
+ }
+
+ /* suspend ports in U0, or bail out for new connect changes */
+ if ((t1 & PORT_PE) && (t1 & PORT_PLS_MASK) == XDEV_U0) {
+ if ((t1 & PORT_CSC) && wake_enabled) {
+ bus_state->bus_suspended = 0;
spin_unlock_irqrestore(&xhci->lock, flags);
- xhci_stop_device(xhci, slot_id, 1);
- spin_lock_irqsave(&xhci->lock, flags);
+ xhci_dbg(xhci, "Bus suspend bailout, port connect change\n");
+ return -EBUSY;
}
+ xhci_dbg(xhci, "port %d not suspended\n", port_index);
t2 &= ~PORT_PLS_MASK;
t2 |= PORT_LINK_STROBE | XDEV_U3;
set_bit(port_index, &bus_state->bus_suspended);
@@ -1216,7 +1230,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
* including the USB 3.0 roothub, but only if CONFIG_PM_RUNTIME
* is enabled, so also enable remote wake here.
*/
- if (hcd->self.root_hub->do_remote_wakeup) {
+ if (wake_enabled) {
if (t1 & PORT_CONNECT) {
t2 |= PORT_WKOC_E | PORT_WKDISC_E;
t2 &= ~PORT_WKCONN_E;
@@ -1232,7 +1246,26 @@ int xhci_bus_suspend(struct usb_hcd *hcd)

t1 = xhci_port_state_to_neutral(t1);
if (t1 != t2)
- writel(t2, port_array[port_index]);
+ portsc_buf[port_index] = t2;
+ }
+
+ /* write port settings, stopping and suspending ports if needed */
+ port_index = max_ports;
+ while (port_index--) {
+ if (!portsc_buf[port_index])
+ continue;
+ if (test_bit(port_index, &bus_state->bus_suspended)) {
+ int slot_id;
+
+ slot_id = xhci_find_slot_id_by_port(hcd, xhci,
+ port_index + 1);
+ if (slot_id) {
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_stop_device(xhci, slot_id, 1);
+ spin_lock_irqsave(&xhci->lock, flags);
+ }
+ }
+ writel(portsc_buf[port_index], port_array[port_index]);
}
hcd->state = HC_STATE_SUSPENDED;
bus_state->next_statechange = jiffies + msecs_to_jiffies(10);
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 06dd8d8a2f8a..6227764ffaa9 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -130,6 +130,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == 0x43bb))
xhci->quirks |= XHCI_SUSPEND_DELAY;

+ if (pdev->vendor == PCI_VENDOR_ID_AMD &&
+ (pdev->device == 0x15e0 || pdev->device == 0x15e1))
+ xhci->quirks |= XHCI_SNPS_BROKEN_SUSPEND;
+
if (pdev->vendor == PCI_VENDOR_ID_AMD)
xhci->quirks |= XHCI_TRUST_TX_LENGTH;

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index a37823354b72..1a308f971a7e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1676,7 +1676,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
* RExit to a disconnect state). If so, let the the driver know it's
* out of the RExit state.
*/
- if (!DEV_SUPERSPEED(temp) &&
+ if (!DEV_SUPERSPEED(temp) && hcd->speed < HCD_USB3 &&
test_and_clear_bit(faked_port_index,
&bus_state->rexit_ports)) {
complete(&bus_state->rexit_done[faked_port_index]);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index a30b16b3c847..40f8ff381c44 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -908,6 +908,7 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
unsigned int delay = XHCI_MAX_HALT_USEC;
struct usb_hcd *hcd = xhci_to_hcd(xhci);
u32 command;
+ u32 res;

if (hcd->state != HC_STATE_SUSPENDED ||
xhci->shared_hcd->state != HC_STATE_SUSPENDED)
@@ -954,11 +955,28 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
command = readl(&xhci->op_regs->command);
command |= CMD_CSS;
writel(command, &xhci->op_regs->command);
+ xhci->broken_suspend = 0;
if (xhci_handshake(xhci, &xhci->op_regs->status,
STS_SAVE, 0, 10 * 1000)) {
- xhci_warn(xhci, "WARN: xHC save state timeout\n");
- spin_unlock_irq(&xhci->lock);
- return -ETIMEDOUT;
+ /*
+ * AMD SNPS xHC 3.0 occasionally does not clear the
+ * SSS bit of USBSTS and when driver tries to poll
+ * to see if the xHC clears BIT(8) which never happens
+ * and driver assumes that controller is not responding
+ * and times out. To workaround this, its good to check
+ * if SRE and HCE bits are not set (as per xhci
+ * Section 5.4.2) and bypass the timeout.
+ */
+ res = readl(&xhci->op_regs->status);
+ if ((xhci->quirks & XHCI_SNPS_BROKEN_SUSPEND) &&
+ (((res & STS_SRE) == 0) &&
+ ((res & STS_HCE) == 0))) {
+ xhci->broken_suspend = 1;
+ } else {
+ xhci_warn(xhci, "WARN: xHC save state timeout\n");
+ spin_unlock_irq(&xhci->lock);
+ return -ETIMEDOUT;
+ }
}
spin_unlock_irq(&xhci->lock);

@@ -1007,7 +1025,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
set_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);

spin_lock_irq(&xhci->lock);
- if (xhci->quirks & XHCI_RESET_ON_RESUME)
+ if ((xhci->quirks & XHCI_RESET_ON_RESUME) || xhci->broken_suspend)
hibernated = true;

if (!hibernated) {
@@ -4448,9 +4466,25 @@ static u16 xhci_call_host_update_timeout_for_endpoint(struct xhci_hcd *xhci,
u16 *timeout)
{
if (state == USB3_LPM_U1) {
+ /* Prevent U1 if service interval is shorter than U1 exit latency */
+ if (usb_endpoint_xfer_int(desc) || usb_endpoint_xfer_isoc(desc)) {
+ if (xhci_service_interval_to_ns(desc) <= udev->u1_params.mel) {
+ dev_dbg(&udev->dev, "Disable U1, ESIT shorter than exit latency\n");
+ return USB3_LPM_DISABLED;
+ }
+ }
+
if (xhci->quirks & XHCI_INTEL_HOST)
return xhci_calculate_intel_u1_timeout(udev, desc);
} else {
+ /* Prevent U2 if service interval is shorter than U2 exit latency */
+ if (usb_endpoint_xfer_int(desc) || usb_endpoint_xfer_isoc(desc)) {
+ if (xhci_service_interval_to_ns(desc) <= udev->u2_params.mel) {
+ dev_dbg(&udev->dev, "Disable U2, ESIT shorter than exit latency\n");
+ return USB3_LPM_DISABLED;
+ }
+ }
+
if (xhci->quirks & XHCI_INTEL_HOST)
return xhci_calculate_intel_u2_timeout(udev, desc);
}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index df47cb8e5ec8..feb702516470 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1433,7 +1433,7 @@ struct xhci_bus_state {
* It can take up to 20 ms to transition from RExit to U0 on the
* Intel Lynx Point LP xHCI host.
*/
-#define XHCI_MAX_REXIT_TIMEOUT (20 * 1000)
+#define XHCI_MAX_REXIT_TIMEOUT_MS 20

static inline unsigned int hcd_index(struct usb_hcd *hcd)
{
@@ -1572,6 +1572,7 @@ struct xhci_hcd {
#define XHCI_U2_DISABLE_WAKE (1 << 27)
#define XHCI_ASMEDIA_MODIFY_FLOWCONTROL (1 << 28)
#define XHCI_SUSPEND_DELAY (1 << 30)
+#define XHCI_SNPS_BROKEN_SUSPEND BIT(31)
unsigned int num_active_eps;
unsigned int limit_active_eps;
/* There are two roothubs to keep track of bus suspend info for */
@@ -1588,6 +1589,8 @@ struct xhci_hcd {
unsigned sw_lpm_support:1;
/* support xHCI 1.0 spec USB2 hardware LPM */
unsigned hw_lpm_support:1;
+ /* Broken Suspend flag for SNPS Suspend resume issue */
+ unsigned broken_suspend:1;
/* cached usb2 extened protocol capabilites */
u32 *ext_caps;
unsigned int num_ext_caps;
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index b3d245ef46ef..a1648fe0937e 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -63,6 +63,8 @@ static const struct usb_device_id appledisplay_table[] = {
{ APPLEDISPLAY_DEVICE(0x9219) },
{ APPLEDISPLAY_DEVICE(0x921c) },
{ APPLEDISPLAY_DEVICE(0x921d) },
+ { APPLEDISPLAY_DEVICE(0x9222) },
+ { APPLEDISPLAY_DEVICE(0x9226) },
{ APPLEDISPLAY_DEVICE(0x9236) },

/* Terminating entry */
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 244acb1299a9..e92cd1eceefa 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -773,7 +773,7 @@ static void cypress_send(struct usb_serial_port *port)

usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
- port->interrupt_out_buffer, port->interrupt_out_size,
+ port->interrupt_out_buffer, actual_size,
cypress_write_int_callback, port, priv->write_urb_interval);
result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
if (result) {
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 93e7fcf18088..0ec4a883b614 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1888,6 +1888,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
{ USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
.driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist },
+ { USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9003, 0xff) }, /* Simcom SIM7500/SIM7600 MBIM mode */
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
.driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
},
@@ -2075,7 +2076,12 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_6802, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD300, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 0xff, 0xff, 0xff) }, /* HP lt2523 (Novatel E371) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 0xff, 0xff, 0xff) }, /* HP lt2523 (Novatel E371) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x10) }, /* HP lt4132 (Huawei ME906s-158) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x12) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x13) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x14) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x1b) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
diff --git a/drivers/usb/storage/unusual_realtek.h b/drivers/usb/storage/unusual_realtek.h
index e41f50c95ed4..f5fc3271e19c 100644
--- a/drivers/usb/storage/unusual_realtek.h
+++ b/drivers/usb/storage/unusual_realtek.h
@@ -38,4 +38,14 @@ UNUSUAL_DEV(0x0bda, 0x0159, 0x0000, 0x9999,
"USB Card Reader",
USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),

+UNUSUAL_DEV(0x0bda, 0x0177, 0x0000, 0x9999,
+ "Realtek",
+ "USB Card Reader",
+ USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
+
+UNUSUAL_DEV(0x0bda, 0x0184, 0x0000, 0x9999,
+ "Realtek",
+ "USB Card Reader",
+ USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
+
#endif /* defined(CONFIG_USB_STORAGE_REALTEK) || ... */
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index a9dfe6bd70eb..337e1d04871f 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1411,6 +1411,8 @@ int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads,
return -EFAULT;
}
if (unlikely(vq->log_used)) {
+ /* Make sure used idx is seen before log. */
+ smp_wmb();
/* Log used index update. */
log_write(vq->log_base,
vq->log_addr + offsetof(struct vring_used, idx),
diff --git a/drivers/video/fbdev/aty/mach64_accel.c b/drivers/video/fbdev/aty/mach64_accel.c
index 182bd680141f..e9dfe0e40b8b 100644
--- a/drivers/video/fbdev/aty/mach64_accel.c
+++ b/drivers/video/fbdev/aty/mach64_accel.c
@@ -126,7 +126,7 @@ void aty_init_engine(struct atyfb_par *par, struct fb_info *info)

/* set host attributes */
wait_for_fifo(13, par);
- aty_st_le32(HOST_CNTL, 0, par);
+ aty_st_le32(HOST_CNTL, HOST_BYTE_ALIGN, par);

/* set pattern attributes */
aty_st_le32(PAT_REG0, 0, par);
@@ -232,7 +232,8 @@ void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
rotation = rotation24bpp(dx, direction);
}

- wait_for_fifo(4, par);
+ wait_for_fifo(5, par);
+ aty_st_le32(DP_PIX_WIDTH, par->crtc.dp_pix_width, par);
aty_st_le32(DP_SRC, FRGD_SRC_BLIT, par);
aty_st_le32(SRC_Y_X, (sx << 16) | sy, par);
aty_st_le32(SRC_HEIGHT1_WIDTH1, (width << 16) | area->height, par);
@@ -268,7 +269,8 @@ void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
rotation = rotation24bpp(dx, DST_X_LEFT_TO_RIGHT);
}

- wait_for_fifo(3, par);
+ wait_for_fifo(4, par);
+ aty_st_le32(DP_PIX_WIDTH, par->crtc.dp_pix_width, par);
aty_st_le32(DP_FRGD_CLR, color, par);
aty_st_le32(DP_SRC,
BKGD_SRC_BKGD_CLR | FRGD_SRC_FRGD_CLR | MONO_SRC_ONE,
@@ -283,7 +285,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct atyfb_par *par = (struct atyfb_par *) info->par;
u32 src_bytes, dx = image->dx, dy = image->dy, width = image->width;
- u32 pix_width_save, pix_width, host_cntl, rotation = 0, src, mix;
+ u32 pix_width, rotation = 0, src, mix;

if (par->asleep)
return;
@@ -295,8 +297,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
return;
}

- pix_width = pix_width_save = aty_ld_le32(DP_PIX_WIDTH, par);
- host_cntl = aty_ld_le32(HOST_CNTL, par) | HOST_BYTE_ALIGN;
+ pix_width = par->crtc.dp_pix_width;

switch (image->depth) {
case 1:
@@ -344,7 +345,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
* since Rage 3D IIc we have DP_HOST_TRIPLE_EN bit
* this hwaccelerated triple has an issue with not aligned data
*/
- if (M64_HAS(HW_TRIPLE) && image->width % 8 == 0)
+ if (image->depth == 1 && M64_HAS(HW_TRIPLE) && image->width % 8 == 0)
pix_width |= DP_HOST_TRIPLE_EN;
}

@@ -369,19 +370,18 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
mix = FRGD_MIX_D_XOR_S | BKGD_MIX_D;
}

- wait_for_fifo(6, par);
- aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF, par);
+ wait_for_fifo(5, par);
aty_st_le32(DP_PIX_WIDTH, pix_width, par);
aty_st_le32(DP_MIX, mix, par);
aty_st_le32(DP_SRC, src, par);
- aty_st_le32(HOST_CNTL, host_cntl, par);
+ aty_st_le32(HOST_CNTL, HOST_BYTE_ALIGN, par);
aty_st_le32(DST_CNTL, DST_Y_TOP_TO_BOTTOM | DST_X_LEFT_TO_RIGHT | rotation, par);

draw_rect(dx, dy, width, image->height, par);
src_bytes = (((image->width * image->depth) + 7) / 8) * image->height;

/* manual triple each pixel */
- if (info->var.bits_per_pixel == 24 && !(pix_width & DP_HOST_TRIPLE_EN)) {
+ if (image->depth == 1 && info->var.bits_per_pixel == 24 && !(pix_width & DP_HOST_TRIPLE_EN)) {
int inbit, outbit, mult24, byte_id_in_dword, width;
u8 *pbitmapin = (u8*)image->data, *pbitmapout;
u32 hostdword;
@@ -414,7 +414,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
}
}
wait_for_fifo(1, par);
- aty_st_le32(HOST_DATA0, hostdword, par);
+ aty_st_le32(HOST_DATA0, le32_to_cpu(hostdword), par);
}
} else {
u32 *pbitmap, dwords = (src_bytes + 3) / 4;
@@ -423,8 +423,4 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
aty_st_le32(HOST_DATA0, get_unaligned_le32(pbitmap), par);
}
}
-
- /* restore pix_width */
- wait_for_fifo(1, par);
- aty_st_le32(DP_PIX_WIDTH, pix_width_save, par);
}
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 9900e8ec7393..8612816dfb32 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -622,6 +622,8 @@ static int omap_hdq_remove(struct platform_device *pdev)
/* remove module dependency */
pm_runtime_disable(&pdev->dev);

+ w1_remove_master_device(&omap_w1_master);
+
return 0;
}

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 42212c8e4453..73c1254e3943 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -311,6 +311,9 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
*/
flags &= ~(__GFP_DMA | __GFP_HIGHMEM);

+ /* Convert the size to actually allocated. */
+ size = 1UL << (order + PAGE_SHIFT);
+
if (dma_alloc_from_coherent(hwdev, size, dma_handle, &ret))
return ret;

@@ -366,6 +369,9 @@ xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
* physical address */
phys = xen_bus_to_phys(dev_addr);

+ /* Convert the size to actually allocated. */
+ size = 1UL << (order + PAGE_SHIFT);
+
if (((dev_addr + size - 1 <= dma_mask)) ||
range_straddles_page_boundary(phys, size))
xen_destroy_contiguous_region(phys, order);
diff --git a/fs/aio.c b/fs/aio.c
index 4dddb2a5298f..f15e87e8a1dd 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -43,6 +43,7 @@

#include <asm/kmap_types.h>
#include <asm/uaccess.h>
+#include <linux/nospec.h>

#include "internal.h"

@@ -1022,6 +1023,7 @@ static struct kioctx *lookup_ioctx(unsigned long ctx_id)
if (!table || id >= table->nr)
goto out;

+ id = array_index_nospec(id, table->nr);
ctx = rcu_dereference(table->table[id]);
if (ctx && ctx->user_id == ctx_id) {
if (percpu_ref_tryget_live(&ctx->users))
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index d738ff8ab81c..28e15b6f13c7 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -362,6 +362,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
break;
case BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED:
case BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED:
+ ASSERT(0);
args->result = BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED;
goto leave;
}
@@ -406,6 +407,10 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
btrfs_dev_replace_lock(dev_replace);
+ dev_replace->replace_state =
+ BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED;
+ dev_replace->srcdev = NULL;
+ dev_replace->tgtdev = NULL;
goto leave;
}

@@ -423,8 +428,6 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
return 0;

leave:
- dev_replace->srcdev = NULL;
- dev_replace->tgtdev = NULL;
btrfs_dev_replace_unlock(dev_replace);
leave_no_lock:
if (tgt_device)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 430c27e3aa1d..64cd85a24ab8 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -430,9 +430,9 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
int mirror_num = 0;
int failed_mirror = 0;

- clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
while (1) {
+ clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
ret = read_extent_buffer_pages(io_tree, eb, start,
WAIT_COMPLETE,
btree_get_extent, mirror_num);
@@ -444,14 +444,6 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
ret = -EIO;
}

- /*
- * This buffer's crc is fine, but its contents are corrupted, so
- * there is no reason to read the other copies, they won't be
- * any less wrong.
- */
- if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags))
- break;
-
num_copies = btrfs_num_copies(root->fs_info,
eb->start, eb->len);
if (num_copies == 1)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index f34b210aaed8..62a92d7ed0aa 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -8590,6 +8590,7 @@ void btrfs_put_block_group_cache(struct btrfs_fs_info *info)

block_group = btrfs_lookup_first_block_group(info, last);
while (block_group) {
+ wait_block_group_cache_done(block_group);
spin_lock(&block_group->lock);
if (block_group->iref)
break;
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index c8f953b7c084..15934d342b5f 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -506,6 +506,16 @@ int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode,
num_bytes = ALIGN(write_bytes + pos - start_pos, root->sectorsize);

end_of_last_block = start_pos + num_bytes - 1;
+
+ /*
+ * The pages may have already been dirty, clear out old accounting so
+ * we can set things up properly
+ */
+ clear_extent_bit(&BTRFS_I(inode)->io_tree, start_pos, end_of_last_block,
+ EXTENT_DIRTY | EXTENT_DELALLOC |
+ EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG, 0, 0, cached,
+ GFP_NOFS);
+
err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block,
cached);
if (err)
@@ -1408,18 +1418,26 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages,
if (ordered)
btrfs_put_ordered_extent(ordered);

- clear_extent_bit(&BTRFS_I(inode)->io_tree, start_pos,
- last_pos, EXTENT_DIRTY | EXTENT_DELALLOC |
- EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG,
- 0, 0, cached_state, GFP_NOFS);
*lockstart = start_pos;
*lockend = last_pos;
ret = 1;
}

+ /*
+ * It's possible the pages are dirty right now, but we don't want
+ * to clean them yet because copy_from_user may catch a page fault
+ * and we might have to fall back to one page at a time. If that
+ * happens, we'll unlock these pages and we'd have a window where
+ * reclaim could sneak in and drop the once-dirty page on the floor
+ * without writing it.
+ *
+ * We have the pages locked and the extent range locked, so there's
+ * no way someone can start IO on any dirty pages in this range.
+ *
+ * We'll call btrfs_dirty_pages() later on, and that will flip around
+ * delalloc bits and dirty the pages as required.
+ */
for (i = 0; i < num_pages; i++) {
- if (clear_page_dirty_for_io(pages[i]))
- account_page_redirty(pages[i]);
set_page_extent_mapped(pages[i]);
WARN_ON(!PageLocked(pages[i]));
}
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 2b0a627cb5f9..be5f24c860d0 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2141,6 +2141,7 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
struct rb_node *n;
int count = 0;

+ spin_lock(&ctl->tree_lock);
for (n = rb_first(&ctl->free_space_offset); n; n = rb_next(n)) {
info = rb_entry(n, struct btrfs_free_space, offset_index);
if (info->bytes >= bytes && !block_group->ro)
@@ -2150,6 +2151,7 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
info->offset, info->bytes,
(info->bitmap) ? "yes" : "no");
}
+ spin_unlock(&ctl->tree_lock);
btrfs_info(block_group->fs_info, "block group has cluster?: %s",
list_empty(&block_group->cluster_list) ? "no" : "yes");
btrfs_info(block_group->fs_info,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 4ebcbac19678..67e036ccb63d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -452,6 +452,7 @@ static noinline int compress_file_range(struct inode *inode,
pages = kzalloc(sizeof(struct page *) * nr_pages, GFP_NOFS);
if (!pages) {
/* just bail out to the uncompressed code */
+ nr_pages = 0;
goto cont;
}

@@ -1448,12 +1449,11 @@ static noinline int run_delalloc_nocow(struct inode *inode,
}
btrfs_release_path(path);

- if (cur_offset <= end && cow_start == (u64)-1) {
+ if (cur_offset <= end && cow_start == (u64)-1)
cow_start = cur_offset;
- cur_offset = end;
- }

if (cow_start != (u64)-1) {
+ cur_offset = end;
ret = cow_file_range(inode, locked_page, cow_start, end,
page_started, nr_written, 1);
if (ret)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9568810444ea..379c88b17c07 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3806,9 +3806,17 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
goto out_unlock;
if (len == 0)
olen = len = src->i_size - off;
- /* if we extend to eof, continue to block boundary */
- if (off + len == src->i_size)
+ /*
+ * If we extend to eof, continue to block boundary if and only if the
+ * destination end offset matches the destination file's size, otherwise
+ * we would be corrupting data by placing the eof block into the middle
+ * of a file.
+ */
+ if (off + len == src->i_size) {
+ if (!IS_ALIGNED(len, bs) && destoff + len < inode->i_size)
+ goto out_unlock;
len = ALIGN(src->i_size, bs) - off;
+ }

if (len == 0) {
ret = 0;
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 0e32f21e0868..1ad1be17e9c2 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2024,7 +2024,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
int ret = 0;
int i;
u64 *i_qgroups;
- struct btrfs_root *quota_root = fs_info->quota_root;
+ struct btrfs_root *quota_root;
struct btrfs_qgroup *srcgroup;
struct btrfs_qgroup *dstgroup;
u32 level_size = 0;
@@ -2034,6 +2034,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
if (!fs_info->quota_enabled)
goto out;

+ quota_root = fs_info->quota_root;
if (!quota_root) {
ret = -EINVAL;
goto out;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index e0029f1a0da8..9cba36820c72 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3955,6 +3955,7 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
restart:
if (update_backref_cache(trans, &rc->backref_cache)) {
btrfs_end_transaction(trans, rc->extent_root);
+ trans = NULL;
continue;
}

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 838723d6a252..30635044e7e0 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1771,6 +1771,7 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
vol = memdup_user((void __user *)arg, sizeof(*vol));
if (IS_ERR(vol))
return PTR_ERR(vol);
+ vol->name[BTRFS_PATH_NAME_MAX] = '\0';

switch (cmd) {
case BTRFS_IOC_SCAN_DEV:
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 6ac55e2ccd2f..720af6c80997 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -383,6 +383,9 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
if (server->ops->print_stats)
server->ops->print_stats(m, tcon);
}
+ atomic_set(&tcpSesReconnectCount, 0);
+ atomic_set(&tconInfoReconnectCount, 0);
+
}
}
spin_unlock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 2f5a7e0103d0..58b5dcdd94c5 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -148,8 +148,10 @@ cifs_get_spnego_key(struct cifs_ses *sesInfo)
sprintf(dp, ";sec=krb5");
else if (server->sec_mskerberos)
sprintf(dp, ";sec=mskrb5");
- else
- goto out;
+ else {
+ cifs_dbg(VFS, "unknown or missing server auth type, use krb5\n");
+ sprintf(dp, ";sec=krb5");
+ }

dp = description + strlen(description);
sprintf(dp, ";uid=0x%x",
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 75eac1424c5b..07e2465c0d50 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -163,7 +163,7 @@ build_path_from_dentry(struct dentry *direntry)

cifs_dbg(FYI, "using cifs_sb prepath <%s>\n", cifs_sb->prepath);
memcpy(full_path+dfsplen+1, cifs_sb->prepath, pplen-1);
- full_path[dfsplen] = '\\';
+ full_path[dfsplen] = dirsep;
for (i = 0; i < pplen-1; i++)
if (full_path[dfsplen+1+i] == '/')
full_path[dfsplen+1+i] = CIFS_DIR_SEP(cifs_sb);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 353d8b690329..09ca7c978700 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -735,7 +735,15 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
} else if (rc == -EREMOTE) {
cifs_create_dfs_fattr(&fattr, sb);
rc = 0;
- } else if (rc == -EACCES && backup_cred(cifs_sb)) {
+ } else if ((rc == -EACCES) && backup_cred(cifs_sb) &&
+ (strcmp(server->vals->version_string, SMB1_VERSION_STRING)
+ == 0)) {
+ /*
+ * For SMB2 and later the backup intent flag is already
+ * sent if needed on open and there is no path based
+ * FindFirst operation to use to retry with
+ */
+
srchinf = kzalloc(sizeof(struct cifs_search_info),
GFP_KERNEL);
if (srchinf == NULL) {
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index ddcfe590b8a8..dd12099e3d5e 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -183,7 +183,8 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i
continue;
blk_offset = (blocknr - buffer_blocknr[i]) << PAGE_CACHE_SHIFT;
blk_offset += offset;
- if (blk_offset + len > BUFFER_SIZE)
+ if (blk_offset > BUFFER_SIZE ||
+ blk_offset + len > BUFFER_SIZE)
continue;
return read_buffers[i] + blk_offset;
}
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index a3aa6baad1a1..78ff747c4fad 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -76,7 +76,7 @@ static bool dentry_connected(struct dentry *dentry)
struct dentry *parent = dget_parent(dentry);

dput(dentry);
- if (IS_ROOT(dentry)) {
+ if (dentry == parent) {
dput(parent);
return false;
}
@@ -148,6 +148,7 @@ static struct dentry *reconnect_one(struct vfsmount *mnt,
mutex_unlock(&parent->d_inode->i_mutex);
if (IS_ERR(tmp)) {
dprintk("%s: lookup failed: %d\n", __func__, PTR_ERR(tmp));
+ err = PTR_ERR(tmp);
goto out_err;
}
if (tmp != dentry) {
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 91426141c33a..d5d6ec134d5c 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -606,9 +606,9 @@ bad_block: ext2_error(sb, "ext2_xattr_set",
}

cleanup:
- brelse(bh);
if (!(bh && header == HDR(bh)))
kfree(header);
+ brelse(bh);
up_write(&EXT2_I(inode)->xattr_sem);

return error;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 05ea39cc4b4c..ea1db0e2a714 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1300,7 +1300,8 @@ struct ext4_sb_info {
u32 s_min_batch_time;
struct block_device *journal_bdev;
#ifdef CONFIG_QUOTA
- char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */
+ /* Names of quota files with journalled quota */
+ char __rcu *s_qf_names[MAXQUOTAS];
int s_jquota_fmt; /* Format of quota to use */
#endif
unsigned int s_want_extra_isize; /* New inodes should reserve # bytes */
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 06b31f567cf8..68308d7ed190 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -859,7 +859,7 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping,
handle_t *handle;
struct page *page;
struct ext4_iloc iloc;
- int retries;
+ int retries = 0;

ret = ext4_get_inode_loc(inode, &iloc);
if (ret)
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index bfda18a15592..723a2307a9e8 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -64,7 +64,6 @@ static void swap_inode_data(struct inode *inode1, struct inode *inode2)
ei1 = EXT4_I(inode1);
ei2 = EXT4_I(inode2);

- memswap(&inode1->i_flags, &inode2->i_flags, sizeof(inode1->i_flags));
memswap(&inode1->i_version, &inode2->i_version,
sizeof(inode1->i_version));
memswap(&inode1->i_blocks, &inode2->i_blocks,
@@ -86,6 +85,21 @@ static void swap_inode_data(struct inode *inode1, struct inode *inode2)
i_size_write(inode2, isize);
}

+static void reset_inode_seed(struct inode *inode)
+{
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ __le32 inum = cpu_to_le32(inode->i_ino);
+ __le32 gen = cpu_to_le32(inode->i_generation);
+ __u32 csum;
+
+ if (!ext4_has_metadata_csum(inode->i_sb))
+ return;
+
+ csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&inum, sizeof(inum));
+ ei->i_csum_seed = ext4_chksum(sbi, csum, (__u8 *)&gen, sizeof(gen));
+}
+
/**
* Swap the information from the given @inode and the inode
* EXT4_BOOT_LOADER_INO. It will basically swap i_data and all other
@@ -104,10 +118,13 @@ static long swap_inode_boot_loader(struct super_block *sb,
struct ext4_inode_info *ei_bl;
struct ext4_sb_info *sbi = EXT4_SB(sb);

- if (inode->i_nlink != 1 || !S_ISREG(inode->i_mode))
+ if (inode->i_nlink != 1 || !S_ISREG(inode->i_mode) ||
+ IS_SWAPFILE(inode) ||
+ ext4_has_inline_data(inode))
return -EINVAL;

- if (!inode_owner_or_capable(inode) || !capable(CAP_SYS_ADMIN))
+ if (IS_RDONLY(inode) || IS_APPEND(inode) || IS_IMMUTABLE(inode) ||
+ !inode_owner_or_capable(inode) || !capable(CAP_SYS_ADMIN))
return -EPERM;

inode_bl = ext4_iget(sb, EXT4_BOOT_LOADER_INO);
@@ -122,15 +139,15 @@ static long swap_inode_boot_loader(struct super_block *sb,
* that only 1 swap_inode_boot_loader is running. */
lock_two_nondirectories(inode, inode_bl);

- truncate_inode_pages(&inode->i_data, 0);
- truncate_inode_pages(&inode_bl->i_data, 0);
-
/* Wait for all existing dio workers */
ext4_inode_block_unlocked_dio(inode);
ext4_inode_block_unlocked_dio(inode_bl);
inode_dio_wait(inode);
inode_dio_wait(inode_bl);

+ truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages(&inode_bl->i_data, 0);
+
handle = ext4_journal_start(inode_bl, EXT4_HT_MOVE_EXTENTS, 2);
if (IS_ERR(handle)) {
err = -EINVAL;
@@ -166,6 +183,8 @@ static long swap_inode_boot_loader(struct super_block *sb,
inode->i_generation = sbi->s_next_generation++;
inode_bl->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
+ reset_inode_seed(inode);
+ reset_inode_seed(inode_bl);

ext4_discard_preallocations(inode);

@@ -176,6 +195,7 @@ static long swap_inode_boot_loader(struct super_block *sb,
inode->i_ino, err);
/* Revert all changes: */
swap_inode_data(inode, inode_bl);
+ ext4_mark_inode_dirty(handle, inode);
} else {
err = ext4_mark_inode_dirty(handle, inode_bl);
if (err < 0) {
@@ -185,6 +205,7 @@ static long swap_inode_boot_loader(struct super_block *sb,
/* Revert all changes: */
swap_inode_data(inode, inode_bl);
ext4_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode_bl);
}
}
ext4_journal_stop(handle);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index deebe58586c2..e5282863d9d4 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -122,6 +122,7 @@ static struct buffer_head *__ext4_read_dirblock(struct inode *inode,
if (!is_dx_block && type == INDEX) {
ext4_error_inode(inode, __func__, line, block,
"directory leaf block found instead of index block");
+ brelse(bh);
return ERR_PTR(-EIO);
}
if (!ext4_has_metadata_csum(inode->i_sb) ||
@@ -2629,7 +2630,9 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
list_del_init(&EXT4_I(inode)->i_orphan);
mutex_unlock(&sbi->s_orphan_lock);
}
- }
+ } else
+ brelse(iloc.bh);
+
jbd_debug(4, "superblock will point to %lu\n", inode->i_ino);
jbd_debug(4, "orphan inode %lu will point to %d\n",
inode->i_ino, NEXT_ORPHAN(inode));
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 52fb5c7db73d..15b9e5dea908 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -442,16 +442,18 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,

BUFFER_TRACE(bh, "get_write_access");
err = ext4_journal_get_write_access(handle, bh);
- if (err)
+ if (err) {
+ brelse(bh);
return err;
+ }
ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
block - start, count2);
ext4_set_bits(bh->b_data, block - start, count2);

err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ brelse(bh);
if (unlikely(err))
return err;
- brelse(bh);
}

return 0;
@@ -588,7 +590,6 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
- bh = NULL;
goto out;
}
overhead = ext4_group_overhead_blocks(sb, group);
@@ -600,9 +601,9 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
ext4_mark_bitmap_end(group_data[i].blocks_count,
sb->s_blocksize * 8, bh->b_data);
err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ brelse(bh);
if (err)
goto out;
- brelse(bh);

handle_ib:
if (bg_flags[i] & EXT4_BG_INODE_UNINIT)
@@ -617,18 +618,16 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
- bh = NULL;
goto out;
}

ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb),
sb->s_blocksize * 8, bh->b_data);
err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ brelse(bh);
if (err)
goto out;
- brelse(bh);
}
- bh = NULL;

/* Mark group tables in block bitmap */
for (j = 0; j < GROUP_TABLE_COUNT; j++) {
@@ -659,7 +658,6 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
}

out:
- brelse(bh);
err2 = ext4_journal_stop(handle);
if (err2 && !err)
err = err2;
@@ -847,6 +845,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
if (unlikely(err)) {
ext4_std_error(sb, err);
+ iloc.bh = NULL;
goto exit_inode;
}
brelse(dind);
@@ -898,6 +897,7 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
sizeof(struct buffer_head *),
GFP_NOFS);
if (!n_group_desc) {
+ brelse(gdb_bh);
err = -ENOMEM;
ext4_warning(sb, "not enough memory for %lu groups",
gdb_num + 1);
@@ -913,8 +913,6 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
ext4_kvfree(o_group_desc);
BUFFER_TRACE(gdb_bh, "get_write_access");
err = ext4_journal_get_write_access(handle, gdb_bh);
- if (unlikely(err))
- brelse(gdb_bh);
return err;
}

@@ -1096,8 +1094,10 @@ static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
backup_block, backup_block -
ext4_group_first_block_no(sb, group));
BUFFER_TRACE(bh, "get_write_access");
- if ((err = ext4_journal_get_write_access(handle, bh)))
+ if ((err = ext4_journal_get_write_access(handle, bh))) {
+ brelse(bh);
break;
+ }
lock_buffer(bh);
memcpy(bh->b_data, data, size);
if (rest)
@@ -1994,7 +1994,7 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)

err = ext4_alloc_flex_bg_array(sb, n_group + 1);
if (err)
- return err;
+ goto out;

err = ext4_mb_alloc_groupinfo(sb, n_group + 1);
if (err)
@@ -2030,6 +2030,10 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
n_blocks_count_retry = 0;
free_flex_gd(flex_gd);
flex_gd = NULL;
+ if (resize_inode) {
+ iput(resize_inode);
+ resize_inode = NULL;
+ }
goto retry;
}

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 535bbf0b4fe4..0b1cd5a7a48b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -780,6 +780,20 @@ static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi)
}
}

+#ifdef CONFIG_QUOTA
+/*
+ * This is a helper function which is used in the mount/remount
+ * codepaths (which holds s_umount) to fetch the quota file name.
+ */
+static inline char *get_qf_name(struct super_block *sb,
+ struct ext4_sb_info *sbi,
+ int type)
+{
+ return rcu_dereference_protected(sbi->s_qf_names[type],
+ lockdep_is_held(&sb->s_umount));
+}
+#endif
+
static void ext4_put_super(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -833,7 +847,7 @@ static void ext4_put_super(struct super_block *sb)
brelse(sbi->s_sbh);
#ifdef CONFIG_QUOTA
for (i = 0; i < MAXQUOTAS; i++)
- kfree(sbi->s_qf_names[i]);
+ kfree(get_qf_name(sb, sbi, i));
#endif

/* Debugging code just in case the in-memory inode orphan list
@@ -1293,11 +1307,10 @@ static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
- char *qname;
+ char *qname, *old_qname = get_qf_name(sb, sbi, qtype);
int ret = -1;

- if (sb_any_quota_loaded(sb) &&
- !sbi->s_qf_names[qtype]) {
+ if (sb_any_quota_loaded(sb) && !old_qname) {
ext4_msg(sb, KERN_ERR,
"Cannot change journaled "
"quota options when quota turned on");
@@ -1314,8 +1327,8 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
"Not enough memory for storing quotafile name");
return -1;
}
- if (sbi->s_qf_names[qtype]) {
- if (strcmp(sbi->s_qf_names[qtype], qname) == 0)
+ if (old_qname) {
+ if (strcmp(old_qname, qname) == 0)
ret = 1;
else
ext4_msg(sb, KERN_ERR,
@@ -1328,7 +1341,7 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
"quotafile must be on filesystem root");
goto errout;
}
- sbi->s_qf_names[qtype] = qname;
+ rcu_assign_pointer(sbi->s_qf_names[qtype], qname);
set_opt(sb, QUOTA);
return 1;
errout:
@@ -1340,15 +1353,16 @@ static int clear_qf_name(struct super_block *sb, int qtype)
{

struct ext4_sb_info *sbi = EXT4_SB(sb);
+ char *old_qname = get_qf_name(sb, sbi, qtype);

- if (sb_any_quota_loaded(sb) &&
- sbi->s_qf_names[qtype]) {
+ if (sb_any_quota_loaded(sb) && old_qname) {
ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options"
" when quota turned on");
return -1;
}
- kfree(sbi->s_qf_names[qtype]);
- sbi->s_qf_names[qtype] = NULL;
+ rcu_assign_pointer(sbi->s_qf_names[qtype], NULL);
+ synchronize_rcu();
+ kfree(old_qname);
return 1;
}
#endif
@@ -1677,7 +1691,7 @@ static int parse_options(char *options, struct super_block *sb,
int is_remount)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
- char *p;
+ char *p, __maybe_unused *usr_qf_name, __maybe_unused *grp_qf_name;
substring_t args[MAX_OPT_ARGS];
int token;

@@ -1704,11 +1718,13 @@ static int parse_options(char *options, struct super_block *sb,
"feature is enabled");
return 0;
}
- if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
- if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
+ usr_qf_name = get_qf_name(sb, sbi, USRQUOTA);
+ grp_qf_name = get_qf_name(sb, sbi, GRPQUOTA);
+ if (usr_qf_name || grp_qf_name) {
+ if (test_opt(sb, USRQUOTA) && usr_qf_name)
clear_opt(sb, USRQUOTA);

- if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
+ if (test_opt(sb, GRPQUOTA) && grp_qf_name)
clear_opt(sb, GRPQUOTA);

if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
@@ -1742,6 +1758,7 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
{
#if defined(CONFIG_QUOTA)
struct ext4_sb_info *sbi = EXT4_SB(sb);
+ char *usr_qf_name, *grp_qf_name;

if (sbi->s_jquota_fmt) {
char *fmtname = "";
@@ -1760,11 +1777,14 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
seq_printf(seq, ",jqfmt=%s", fmtname);
}

- if (sbi->s_qf_names[USRQUOTA])
- seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]);
-
- if (sbi->s_qf_names[GRPQUOTA])
- seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]);
+ rcu_read_lock();
+ usr_qf_name = rcu_dereference(sbi->s_qf_names[USRQUOTA]);
+ grp_qf_name = rcu_dereference(sbi->s_qf_names[GRPQUOTA]);
+ if (usr_qf_name)
+ seq_show_option(seq, "usrjquota", usr_qf_name);
+ if (grp_qf_name)
+ seq_show_option(seq, "grpjquota", grp_qf_name);
+ rcu_read_unlock();
#endif
}

@@ -3960,6 +3980,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_groups_count = blocks_count;
sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count,
(EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
+ if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) !=
+ le32_to_cpu(es->s_inodes_count)) {
+ ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu",
+ le32_to_cpu(es->s_inodes_count),
+ ((u64)sbi->s_groups_count * sbi->s_inodes_per_group));
+ ret = -EINVAL;
+ goto failed_mount;
+ }
db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
EXT4_DESC_PER_BLOCK(sb);
if (EXT4_HAS_INCOMPAT_FEATURE(sb,EXT4_FEATURE_INCOMPAT_META_BG)) {
@@ -3979,14 +4007,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
ret = -ENOMEM;
goto failed_mount;
}
- if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) !=
- le32_to_cpu(es->s_inodes_count)) {
- ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu",
- le32_to_cpu(es->s_inodes_count),
- ((u64)sbi->s_groups_count * sbi->s_inodes_per_group));
- ret = -EINVAL;
- goto failed_mount;
- }

if (ext4_proc_root)
sbi->s_proc = proc_mkdir(sb->s_id, ext4_proc_root);
@@ -4936,6 +4956,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
int err = 0;
#ifdef CONFIG_QUOTA
int i, j;
+ char *to_free[MAXQUOTAS];
#endif
char *orig_data = kstrdup(data, GFP_KERNEL);

@@ -4952,8 +4973,9 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
old_opts.s_jquota_fmt = sbi->s_jquota_fmt;
for (i = 0; i < MAXQUOTAS; i++)
if (sbi->s_qf_names[i]) {
- old_opts.s_qf_names[i] = kstrdup(sbi->s_qf_names[i],
- GFP_KERNEL);
+ char *qf_name = get_qf_name(sb, sbi, i);
+
+ old_opts.s_qf_names[i] = kstrdup(qf_name, GFP_KERNEL);
if (!old_opts.s_qf_names[i]) {
for (j = 0; j < i; j++)
kfree(old_opts.s_qf_names[j]);
@@ -5141,9 +5163,12 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
#ifdef CONFIG_QUOTA
sbi->s_jquota_fmt = old_opts.s_jquota_fmt;
for (i = 0; i < MAXQUOTAS; i++) {
- kfree(sbi->s_qf_names[i]);
- sbi->s_qf_names[i] = old_opts.s_qf_names[i];
+ to_free[i] = get_qf_name(sb, sbi, i);
+ rcu_assign_pointer(sbi->s_qf_names[i], old_opts.s_qf_names[i]);
}
+ synchronize_rcu();
+ for (i = 0; i < MAXQUOTAS; i++)
+ kfree(to_free[i]);
#endif
kfree(orig_data);
return err;
@@ -5291,7 +5316,7 @@ static int ext4_write_info(struct super_block *sb, int type)
*/
static int ext4_quota_on_mount(struct super_block *sb, int type)
{
- return dquot_quota_on_mount(sb, EXT4_SB(sb)->s_qf_names[type],
+ return dquot_quota_on_mount(sb, get_qf_name(sb, EXT4_SB(sb), type),
EXT4_SB(sb)->s_jquota_fmt, type);
}

diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 61e89046f8dd..9047f04f9bc6 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1202,6 +1202,8 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
error = ext4_xattr_block_set(handle, inode, &i, &bs);
} else if (error == -ENOSPC) {
if (EXT4_I(inode)->i_file_acl && !bs.s.base) {
+ brelse(bs.bh);
+ bs.bh = NULL;
error = ext4_xattr_block_find(inode, &i, &bs);
if (error)
goto cleanup;
@@ -1527,6 +1529,8 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
kfree(buffer);
if (is)
brelse(is->iloc.bh);
+ if (bs)
+ brelse(bs->bh);
kfree(is);
kfree(bs);
brelse(bh);
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 0834f5640875..db2963a54f16 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -376,12 +376,19 @@ __releases(fc->lock)
if (req->background) {
req->background = 0;

- if (fc->num_background == fc->max_background)
+ if (fc->num_background == fc->max_background) {
fc->blocked = 0;
-
- /* Wake up next waiter, if any */
- if (!fc->blocked && waitqueue_active(&fc->blocked_waitq))
wake_up(&fc->blocked_waitq);
+ } else if (!fc->blocked) {
+ /*
+ * Wake up next waiter, if any. It's okay to use
+ * waitqueue_active(), as we've already synced up
+ * fc->blocked with waiters with the wake_up() call
+ * above.
+ */
+ if (waitqueue_active(&fc->blocked_waitq))
+ wake_up(&fc->blocked_waitq);
+ }

if (fc->num_background == fc->congestion_threshold &&
fc->connected && fc->bdi_initialized) {
@@ -1675,8 +1682,10 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
req->in.args[1].size = total_len;

err = fuse_request_send_notify_reply(fc, req, outarg->notify_unique);
- if (err)
+ if (err) {
fuse_retrieve_end(fc, req);
+ fuse_put_request(fc, req);
+ }

return err;
}
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 70f4c4361843..a692583913c9 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -488,7 +488,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry,
if (err) {
fuse_sync_release(ff, flags);
} else {
- file->private_data = fuse_file_get(ff);
+ file->private_data = ff;
fuse_finish_open(inode, file);
}
return err;
@@ -1510,7 +1510,7 @@ static int fuse_dir_open(struct inode *inode, struct file *file)

static int fuse_dir_release(struct inode *inode, struct file *file)
{
- fuse_release_common(file, FUSE_RELEASEDIR);
+ fuse_release_common(file, true);

return 0;
}
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 3bae40c4d40f..b2203c5113cf 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -66,7 +66,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
}

INIT_LIST_HEAD(&ff->write_entry);
- atomic_set(&ff->count, 0);
+ atomic_set(&ff->count, 1);
RB_CLEAR_NODE(&ff->polled_node);
init_waitqueue_head(&ff->poll_wait);

@@ -83,7 +83,7 @@ void fuse_file_free(struct fuse_file *ff)
kfree(ff);
}

-struct fuse_file *fuse_file_get(struct fuse_file *ff)
+static struct fuse_file *fuse_file_get(struct fuse_file *ff)
{
atomic_inc(&ff->count);
return ff;
@@ -122,12 +122,12 @@ static void fuse_release_end(struct fuse_conn *fc, struct fuse_req *req)
}
}

-static void fuse_file_put(struct fuse_file *ff, bool sync)
+static void fuse_file_put(struct fuse_file *ff, bool sync, bool isdir)
{
if (atomic_dec_and_test(&ff->count)) {
struct fuse_req *req = ff->reserved_req;

- if (ff->fc->no_open) {
+ if (ff->fc->no_open && !isdir) {
/*
* Drop the release request when client does not
* implement 'open'
@@ -183,7 +183,7 @@ int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file,
ff->open_flags &= ~FOPEN_DIRECT_IO;

ff->nodeid = nodeid;
- file->private_data = fuse_file_get(ff);
+ file->private_data = ff;

return 0;
}
@@ -280,10 +280,11 @@ static void fuse_prepare_release(struct fuse_file *ff, int flags, int opcode)
req->in.args[0].value = inarg;
}

-void fuse_release_common(struct file *file, int opcode)
+void fuse_release_common(struct file *file, bool isdir)
{
struct fuse_file *ff;
struct fuse_req *req;
+ int opcode = isdir ? FUSE_RELEASEDIR : FUSE_RELEASE;

ff = file->private_data;
if (unlikely(!ff))
@@ -311,7 +312,7 @@ void fuse_release_common(struct file *file, int opcode)
* synchronous RELEASE is allowed (and desirable) in this case
* because the server can be trusted not to screw up.
*/
- fuse_file_put(ff, ff->fc->destroy_req != NULL);
+ fuse_file_put(ff, ff->fc->destroy_req != NULL, isdir);
}

static int fuse_open(struct inode *inode, struct file *file)
@@ -327,7 +328,7 @@ static int fuse_release(struct inode *inode, struct file *file)
if (fc->writeback_cache)
write_inode_now(inode, 1);

- fuse_release_common(file, FUSE_RELEASE);
+ fuse_release_common(file, false);

/* return value is ignored by VFS */
return 0;
@@ -335,13 +336,13 @@ static int fuse_release(struct inode *inode, struct file *file)

void fuse_sync_release(struct fuse_file *ff, int flags)
{
- WARN_ON(atomic_read(&ff->count) > 1);
+ WARN_ON(atomic_read(&ff->count) != 1);
fuse_prepare_release(ff, flags, FUSE_RELEASE);
- ff->reserved_req->force = 1;
- ff->reserved_req->background = 0;
- fuse_request_send(ff->fc, ff->reserved_req);
- fuse_put_request(ff->fc, ff->reserved_req);
- kfree(ff);
+ /*
+ * iput(NULL) is a no-op and since the refcount is 1 and everything's
+ * synchronous, we are fine with not doing igrab() here"
+ */
+ fuse_file_put(ff, true, false);
}
EXPORT_SYMBOL_GPL(fuse_sync_release);

@@ -849,7 +850,7 @@ static void fuse_readpages_end(struct fuse_conn *fc, struct fuse_req *req)
page_cache_release(page);
}
if (req->ff)
- fuse_file_put(req->ff, false);
+ fuse_file_put(req->ff, false, false);
}

static void fuse_send_readpages(struct fuse_req *req, struct file *file)
@@ -1528,7 +1529,7 @@ static void fuse_writepage_free(struct fuse_conn *fc, struct fuse_req *req)
__free_page(req->pages[i]);

if (req->ff)
- fuse_file_put(req->ff, false);
+ fuse_file_put(req->ff, false, false);
}

static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
@@ -1685,7 +1686,7 @@ int fuse_write_inode(struct inode *inode, struct writeback_control *wbc)
ff = __fuse_write_file_get(fc, fi);
err = fuse_flush_times(inode, ff);
if (ff)
- fuse_file_put(ff, 0);
+ fuse_file_put(ff, false, false);

return err;
}
@@ -1998,7 +1999,7 @@ static int fuse_writepages(struct address_space *mapping,
err = 0;
}
if (data.ff)
- fuse_file_put(data.ff, false);
+ fuse_file_put(data.ff, false, false);

kfree(data.orig_pages);
out:
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 8ed9ed08d2a0..66019e05e3ad 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -663,7 +663,6 @@ void fuse_read_fill(struct fuse_req *req, struct file *file,
int fuse_open_common(struct inode *inode, struct file *file, bool isdir);

struct fuse_file *fuse_file_alloc(struct fuse_conn *fc);
-struct fuse_file *fuse_file_get(struct fuse_file *ff);
void fuse_file_free(struct fuse_file *ff);
void fuse_finish_open(struct inode *inode, struct file *file);

@@ -672,7 +671,7 @@ void fuse_sync_release(struct fuse_file *ff, int flags);
/**
* Send RELEASE or RELEASEDIR request
*/
-void fuse_release_common(struct file *file, int opcode);
+void fuse_release_common(struct file *file, bool isdir);

/**
* Send FSYNC or FSYNCDIR request
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index bc564c0d6d16..b95d935cf3ee 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1365,6 +1365,9 @@ static struct dentry *gfs2_mount_meta(struct file_system_type *fs_type,
struct path path;
int error;

+ if (!dev_name || !*dev_name)
+ return ERR_PTR(-EINVAL);
+
error = kern_path(dev_name, LOOKUP_FOLLOW, &path);
if (error) {
pr_warn("path_lookup on %s returned error %d\n",
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 1ab19e660e69..1ff5774a5382 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -328,13 +328,14 @@ void hfs_bmap_free(struct hfs_bnode *node)

nidx -= len * 8;
i = node->next;
- hfs_bnode_put(node);
if (!i) {
/* panic */;
pr_crit("unable to free bnode %u. bmap not found!\n",
node->this);
+ hfs_bnode_put(node);
return;
}
+ hfs_bnode_put(node);
node = hfs_bnode_find(tree, i);
if (IS_ERR(node))
return;
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 10902f70883d..f3194e5147fd 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -285,10 +285,8 @@ static int jffs2_fill_super(struct super_block *sb, void *data, int silent)
sb->s_fs_info = c;

ret = jffs2_parse_options(c, data);
- if (ret) {
- kfree(c);
+ if (ret)
return -EINVAL;
- }

/* Initialize JFFS2 superblock locks, the further initialization will
* be done later */
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index b5f3c3ab0d5f..b31117c12102 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -339,7 +339,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
};
struct lockd_net *ln = net_generic(net, lockd_net_id);

- dprintk("lockd: %s(host='%*s', vers=%u, proto=%s)\n", __func__,
+ dprintk("lockd: %s(host='%.*s', vers=%u, proto=%s)\n", __func__,
(int)hostname_len, hostname, rqstp->rq_vers,
(rqstp->rq_prot == IPPROTO_UDP ? "udp" : "tcp"));

diff --git a/fs/namespace.c b/fs/namespace.c
index ad7a0f80b103..5acf789efbab 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1423,8 +1423,13 @@ static int do_umount(struct mount *mnt, int flags)

namespace_lock();
lock_mount_hash();
- event++;

+ /* Recheck MNT_LOCKED with the locks held */
+ retval = -EINVAL;
+ if (mnt->mnt.mnt_flags & MNT_LOCKED)
+ goto out;
+
+ event++;
if (flags & MNT_DETACH) {
if (!list_empty(&mnt->mnt_list))
umount_tree(mnt, UMOUNT_PROPAGATE);
@@ -1438,6 +1443,7 @@ static int do_umount(struct mount *mnt, int flags)
retval = 0;
}
}
+out:
unlock_mount_hash();
namespace_unlock();
return retval;
@@ -1484,7 +1490,7 @@ SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
goto dput_and_out;
if (!check_mnt(mnt))
goto dput_and_out;
- if (mnt->mnt.mnt_flags & MNT_LOCKED)
+ if (mnt->mnt.mnt_flags & MNT_LOCKED) /* Check optimistically */
goto dput_and_out;
retval = -EPERM;
if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))
@@ -1568,8 +1574,14 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
struct mount *t = NULL;
if (!(flag & CL_COPY_UNBINDABLE) &&
IS_MNT_UNBINDABLE(s)) {
- s = skip_mnt_tree(s);
- continue;
+ if (s->mnt.mnt_flags & MNT_LOCKED) {
+ /* Both unbindable and locked. */
+ q = ERR_PTR(-EPERM);
+ goto out;
+ } else {
+ s = skip_mnt_tree(s);
+ continue;
+ }
}
if (!(flag & CL_COPY_MNT_NS_FILE) &&
is_mnt_ns_file(s->mnt.mnt_root)) {
@@ -1629,7 +1641,7 @@ void drop_collected_mounts(struct vfsmount *mnt)
{
namespace_lock();
lock_mount_hash();
- umount_tree(real_mount(mnt), UMOUNT_SYNC);
+ umount_tree(real_mount(mnt), 0);
unlock_mount_hash();
namespace_unlock();
}
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index f96c66b4d504..474cb8195245 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2427,11 +2427,12 @@ static void nfs4_state_manager(struct nfs_client *clp)
nfs4_clear_state_manager_bit(clp);
/* Did we race with an attempt to give us more work? */
if (clp->cl_state == 0)
- break;
+ return;
if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
- break;
+ return;
} while (atomic_read(&clp->cl_count) > 1);
- return;
+ goto out_drain;
+
out_error:
if (strlen(section))
section_sep = ": ";
@@ -2439,6 +2440,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
" with error %d\n", section_sep, section,
clp->cl_hostname, -status);
ssleep(1);
+out_drain:
nfs4_end_drain_session(clp);
nfs4_clear_state_manager_bit(clp);
}
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 0717662b4aef..0165e4ff163c 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -1906,8 +1906,7 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
/* On error, skip the f_pos to the
next block. */
ctx->pos = (ctx->pos | (sb->s_blocksize - 1)) + 1;
- brelse(bh);
- continue;
+ break;
}
if (le64_to_cpu(de->inode)) {
unsigned char d_type = DT_UNKNOWN;
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 02fa1dcc5969..29f5b2e589a1 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -275,7 +275,7 @@ static int __sysv_write_inode(struct inode *inode, int wait)
}
}
brelse(bh);
- return 0;
+ return err;
}

int sysv_write_inode(struct inode *inode, struct writeback_control *wbc)
diff --git a/fs/xfs/xfs_stats.c b/fs/xfs/xfs_stats.c
index f2240383d4bb..cd35b2eae811 100644
--- a/fs/xfs/xfs_stats.c
+++ b/fs/xfs/xfs_stats.c
@@ -135,7 +135,7 @@ static int xqmstat_proc_show(struct seq_file *m, void *v)
int j;

seq_printf(m, "qm");
- for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
+ for (j = XFSSTAT_END_FIBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
seq_printf(m, " %u", counter_val(j));
seq_putc(m, '\n');
return 0;
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 108d2efcb015..0e3249c1a0ec 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -127,6 +127,7 @@ void can_change_state(struct net_device *dev, struct can_frame *cf,

void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
unsigned int idx);
+struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 *len_ptr);
unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx);
void can_free_echo_skb(struct net_device *dev, unsigned int idx);

diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 279b0afac1c1..4f22e21806c3 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -67,7 +67,13 @@ struct ceph_options {

#define CEPH_MSG_MAX_FRONT_LEN (16*1024*1024)
#define CEPH_MSG_MAX_MIDDLE_LEN (16*1024*1024)
-#define CEPH_MSG_MAX_DATA_LEN (16*1024*1024)
+
+/*
+ * Handle the largest possible rbd object in one message.
+ * There is no limit on the size of cephfs objects, but it has to obey
+ * rsize and wsize mount options anyway.
+ */
+#define CEPH_MSG_MAX_DATA_LEN (32*1024*1024)

#define CEPH_AUTH_NAME_DEFAULT "guest"

diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index 51f7ccadf923..0d182665f142 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -149,6 +149,7 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
* @usage_id: Attribute usage id of parent physical device as per spec
* @attr_usage_id: Attribute usage id as per spec
* @report_id: Report id to look for
+* @is_signed: If true then fields < 32 bits will be sign-extended
*
* Issues a synchronous read request for an input attribute. Returns
* data upto 32 bits. Since client can get events, so this call should
@@ -157,7 +158,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,

int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
- u32 attr_usage_id, u32 report_id);
+ u32 attr_usage_id, u32 report_id,
+ bool is_signed);
/**
* sensor_hub_set_feature() - Feature set request
* @report_id: Report id to look for
diff --git a/include/linux/i8253.h b/include/linux/i8253.h
index e6bb36a97519..8336b2f6f834 100644
--- a/include/linux/i8253.h
+++ b/include/linux/i8253.h
@@ -21,6 +21,7 @@
#define PIT_LATCH ((PIT_TICK_RATE + HZ/2) / HZ)

extern raw_spinlock_t i8253_lock;
+extern bool i8253_clear_counter_on_shutdown;
extern struct clock_event_device i8253_clockevent;
extern void clockevent_i8253_init(bool oneshot);

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 23f1ce4e554e..0b9b56809dab 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -121,7 +121,6 @@ static inline bool is_error_page(struct page *page)
#define KVM_REQ_MMU_SYNC 7
#define KVM_REQ_CLOCK_UPDATE 8
#define KVM_REQ_KICK 9
-#define KVM_REQ_DEACTIVATE_FPU 10
#define KVM_REQ_EVENT 11
#define KVM_REQ_APF_HALT 12
#define KVM_REQ_STEAL_UPDATE 13
@@ -232,7 +231,6 @@ struct kvm_vcpu {
struct mutex mutex;
struct kvm_run *run;

- int fpu_active;
int guest_fpu_loaded, guest_xcr0_loaded;
wait_queue_head_t wq;
struct pid *pid;
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index cc615e273f80..b95f00cb6219 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -247,6 +247,8 @@ unsigned int *xt_alloc_entry_offsets(unsigned int size);
bool xt_find_jump_offset(const unsigned int *offsets,
unsigned int target, unsigned int size);

+int xt_check_proc_name(const char *name, unsigned int size);
+
int xt_check_match(struct xt_mtchk_param *, unsigned int size, u_int8_t proto,
bool inv_proto);
int xt_check_target(struct xt_tgchk_param *, unsigned int size, u_int8_t proto,
diff --git a/include/linux/of.h b/include/linux/of.h
index 0c220cf91e92..15e6a340c1bd 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -237,6 +237,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
extern struct device_node *of_get_next_available_child(
const struct device_node *node, struct device_node *prev);

+extern struct device_node *of_get_compatible_child(const struct device_node *parent,
+ const char *compatible);
extern struct device_node *of_get_child_by_name(const struct device_node *node,
const char *name);

@@ -412,6 +414,12 @@ static inline bool of_have_populated_dt(void)
return false;
}

+static inline struct device_node *of_get_compatible_child(const struct device_node *parent,
+ const char *compatible)
+{
+ return NULL;
+}
+
static inline struct device_node *of_get_child_by_name(
const struct device_node *node,
const char *name)
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index ecd3319dac33..ee7e1b8afd3a 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -2,6 +2,9 @@
#define __LINUX_UACCESS_H__

#include <linux/preempt.h>
+
+#define uaccess_kernel() segment_eq(get_fs(), KERNEL_DS)
+
#include <asm/uaccess.h>

/*
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 7199f201c7a8..a53e036b2252 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -334,11 +334,11 @@ struct usb_host_bos {
};

int __usb_get_extra_descriptor(char *buffer, unsigned size,
- unsigned char type, void **ptr);
+ unsigned char type, void **ptr, size_t min);
#define usb_get_extra_descriptor(ifpoint, type, ptr) \
__usb_get_extra_descriptor((ifpoint)->extra, \
(ifpoint)->extralen, \
- type, (void **)ptr)
+ type, (void **)ptr, sizeof(**(ptr)))

/* ----------------------------------------------------------------------- */

diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 70b965c25e3a..efc4e51c425a 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -59,4 +59,7 @@
/* Device needs a pause after every control message. */
#define USB_QUIRK_DELAY_CTRL_MSG BIT(13)

+/* Hub needs extra delay after resetting its port. */
+#define USB_QUIRK_HUB_SLOW_RESET BIT(14)
+
#endif /* __LINUX_USB_QUIRKS_H */
diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index c8b8852ce9b8..a34b141f125f 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -120,13 +120,6 @@ extern int cipso_v4_rbm_optfmt;
extern int cipso_v4_rbm_strictvalid;
#endif

-/*
- * Helper Functions
- */
-
-#define CIPSO_V4_OPTEXIST(x) (IPCB(x)->opt.cipso != 0)
-#define CIPSO_V4_OPTPTR(x) (skb_network_header(x) + IPCB(x)->opt.cipso)
-
/*
* DOI List Functions
*/
@@ -190,7 +183,7 @@ static inline int cipso_v4_doi_domhsh_remove(struct cipso_v4_doi *doi_def,

#ifdef CONFIG_NETLABEL
void cipso_v4_cache_invalidate(void);
-int cipso_v4_cache_add(const struct sk_buff *skb,
+int cipso_v4_cache_add(const unsigned char *cipso_ptr,
const struct netlbl_lsm_secattr *secattr);
#else
static inline void cipso_v4_cache_invalidate(void)
@@ -198,7 +191,7 @@ static inline void cipso_v4_cache_invalidate(void)
return;
}

-static inline int cipso_v4_cache_add(const struct sk_buff *skb,
+static inline int cipso_v4_cache_add(const unsigned char *cipso_ptr,
const struct netlbl_lsm_secattr *secattr)
{
return 0;
@@ -211,6 +204,8 @@ static inline int cipso_v4_cache_add(const struct sk_buff *skb,

#ifdef CONFIG_NETLABEL
void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway);
+int cipso_v4_getattr(const unsigned char *cipso,
+ struct netlbl_lsm_secattr *secattr);
int cipso_v4_sock_setattr(struct sock *sk,
const struct cipso_v4_doi *doi_def,
const struct netlbl_lsm_secattr *secattr);
@@ -226,6 +221,7 @@ int cipso_v4_skbuff_setattr(struct sk_buff *skb,
int cipso_v4_skbuff_delattr(struct sk_buff *skb);
int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr);
+unsigned char *cipso_v4_optptr(const struct sk_buff *skb);
int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option);
#else
static inline void cipso_v4_error(struct sk_buff *skb,
@@ -235,6 +231,12 @@ static inline void cipso_v4_error(struct sk_buff *skb,
return;
}

+static inline int cipso_v4_getattr(const unsigned char *cipso,
+ struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+
static inline int cipso_v4_sock_setattr(struct sock *sk,
const struct cipso_v4_doi *doi_def,
const struct netlbl_lsm_secattr *secattr)
@@ -282,6 +284,11 @@ static inline int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
return -ENOSYS;
}

+static inline unsigned char *cipso_v4_optptr(const struct sk_buff *skb)
+{
+ return NULL;
+}
+
static inline int cipso_v4_validate(const struct sk_buff *skb,
unsigned char **option)
{
diff --git a/kernel/bounds.c b/kernel/bounds.c
index 9fd4246b04b8..a4af3e34357f 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -13,7 +13,7 @@
#include <linux/log2.h>
#include <linux/spinlock_types.h>

-void foo(void)
+int main(void)
{
/* The enum constants to put into include/generated/bounds.h */
DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
@@ -24,4 +24,6 @@ void foo(void)
#endif
DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
/* End of constants */
+
+ return 0;
}
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 9a4d44f93015..29d45591076f 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -610,7 +610,7 @@ static int prepare_uprobe(struct uprobe *uprobe, struct file *file,
BUG_ON((uprobe->offset & ~PAGE_MASK) +
UPROBE_SWBP_INSN_SIZE > PAGE_SIZE);

- smp_wmb(); /* pairs with rmb() in find_active_uprobe() */
+ smp_wmb(); /* pairs with the smp_rmb() in handle_swbp() */
set_bit(UPROBE_COPY_INSN, &uprobe->flags);

out:
@@ -1858,10 +1858,18 @@ static void handle_swbp(struct pt_regs *regs)
* After we hit the bp, _unregister + _register can install the
* new and not-yet-analyzed uprobe at the same address, restart.
*/
- smp_rmb(); /* pairs with wmb() in install_breakpoint() */
if (unlikely(!test_bit(UPROBE_COPY_INSN, &uprobe->flags)))
goto out;

+ /*
+ * Pairs with the smp_wmb() in prepare_uprobe().
+ *
+ * Guarantees that if we see the UPROBE_COPY_INSN bit set, then
+ * we must also see the stores to &uprobe->arch performed by the
+ * prepare_uprobe() call.
+ */
+ smp_rmb();
+
/* Tracing handlers use ->utask to communicate with fetch methods */
if (!get_utask())
goto out;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 1ce20fc82364..e900d079957e 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -805,6 +805,9 @@ irq_forced_thread_fn(struct irq_desc *desc, struct irqaction *action)

local_bh_disable();
ret = action->thread_fn(action->irq, action->dev_id);
+ if (ret == IRQ_HANDLED)
+ atomic_inc(&desc->threads_handled);
+
irq_finalize_oneshot(desc, action);
local_bh_enable();
return ret;
@@ -821,6 +824,9 @@ static irqreturn_t irq_thread_fn(struct irq_desc *desc,
irqreturn_t ret;

ret = action->thread_fn(action->irq, action->dev_id);
+ if (ret == IRQ_HANDLED)
+ atomic_inc(&desc->threads_handled);
+
irq_finalize_oneshot(desc, action);
return ret;
}
@@ -886,8 +892,6 @@ static int irq_thread(void *data)
irq_thread_check_affinity(desc, action);

action_ret = handler_fn(desc, action);
- if (action_ret == IRQ_HANDLED)
- atomic_inc(&desc->threads_handled);

wake_threads_waitq(desc);
}
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 09d5b8143b94..eab6a64517c3 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -837,7 +837,12 @@ static unsigned long __initdata new_log_buf_len;
/* save requested log_buf_len since it's too early to process it */
static int __init log_buf_len_setup(char *str)
{
- unsigned size = memparse(str, &str);
+ unsigned int size;
+
+ if (!str)
+ return -EINVAL;
+
+ size = memparse(str, &str);

if (size)
size = roundup_pow_of_two(size);
diff --git a/kernel/signal.c b/kernel/signal.c
index 998e9f173c45..ce4d529e7f3c 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1040,7 +1040,7 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,

result = TRACE_SIGNAL_IGNORED;
if (!prepare_signal(sig, t,
- from_ancestor_ns || (info == SEND_SIG_FORCED)))
+ from_ancestor_ns || (info == SEND_SIG_PRIV) || (info == SEND_SIG_FORCED)))
goto ret;

pending = group ? &t->signal->shared_pending : &t->pending;
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 61ed862cdd37..37d7e4d29e5f 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -362,7 +362,7 @@ static int __init init_timer_list_procfs(void)
{
struct proc_dir_entry *pe;

- pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
+ pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
if (!pe)
return -ENOMEM;
return 0;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 3b1f547a80e1..8ee705e1d472 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4127,6 +4127,7 @@ void ftrace_destroy_filter_files(struct ftrace_ops *ops)
if (ops->flags & FTRACE_OPS_FL_ENABLED)
ftrace_shutdown(ops, 0);
ops->flags |= FTRACE_OPS_FL_DELETED;
+ ftrace_free_filter(ops);
mutex_unlock(&ftrace_lock);
}

diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
index a958d3397a52..909502d8710f 100644
--- a/kernel/trace/trace_events_trigger.c
+++ b/kernel/trace/trace_events_trigger.c
@@ -727,8 +727,10 @@ static int set_trigger_filter(char *filter_str,

/* The filter is for the 'trigger' event, not the triggered event */
ret = create_event_filter(file->event_call, filter_str, false, &filter);
- if (ret)
- goto out;
+ /*
+ * If create_event_filter() fails, filter still needs to be freed.
+ * Which the calling code will do with data->filter.
+ */
assign:
tmp = rcu_access_pointer(data->filter);

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index f6ff7414c439..3ca4e9eb205b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2606,7 +2606,7 @@ static int is_hugetlb_entry_hwpoisoned(pte_t pte)
int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
struct vm_area_struct *vma)
{
- pte_t *src_pte, *dst_pte, entry;
+ pte_t *src_pte, *dst_pte, entry, dst_entry;
struct page *ptepage;
unsigned long addr;
int cow;
@@ -2634,15 +2634,30 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
break;
}

- /* If the pagetables are shared don't copy or take references */
- if (dst_pte == src_pte)
+ /*
+ * If the pagetables are shared don't copy or take references.
+ * dst_pte == src_pte is the common case of src/dest sharing.
+ *
+ * However, src could have 'unshared' and dst shares with
+ * another vma. If dst_pte !none, this implies sharing.
+ * Check here before taking page table lock, and once again
+ * after taking the lock below.
+ */
+ dst_entry = huge_ptep_get(dst_pte);
+ if ((dst_pte == src_pte) || !huge_pte_none(dst_entry))
continue;

dst_ptl = huge_pte_lock(h, dst, dst_pte);
src_ptl = huge_pte_lockptr(h, src, src_pte);
spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
entry = huge_ptep_get(src_pte);
- if (huge_pte_none(entry)) { /* skip none entry */
+ dst_entry = huge_ptep_get(dst_pte);
+ if (huge_pte_none(entry) || !huge_pte_none(dst_entry)) {
+ /*
+ * Skip if src entry none. Also, skip in the
+ * unlikely case dst entry !none as this implies
+ * sharing with another vma.
+ */
;
} else if (unlikely(is_hugetlb_entry_migration(entry) ||
is_hugetlb_entry_hwpoisoned(entry))) {
@@ -3085,6 +3100,12 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
}
ClearPagePrivate(page);

+ /*
+ * set page dirty so that it will not be removed from
+ * cache/file by non-hugetlbfs specific code paths.
+ */
+ set_page_dirty(page);
+
spin_lock(&inode->i_lock);
inode->i_blocks += blocks_per_huge_page(h);
spin_unlock(&inode->i_lock);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 1e0ec777523e..a5033435b9ca 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -780,6 +780,8 @@ int __remove_pages(struct zone *zone, unsigned long phys_start_pfn,
sections_to_remove = nr_pages / PAGES_PER_SECTION;
for (i = 0; i < sections_to_remove; i++) {
unsigned long pfn = phys_start_pfn + i*PAGES_PER_SECTION;
+
+ cond_resched();
ret = __remove_section(zone, __pfn_to_section(pfn));
if (ret)
break;
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index 50de6a07c65e..9dbe19f9d0ba 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -162,6 +162,7 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
hlist_add_head(&frag_entry_new->list, &chain->head);
chain->size = skb->len - hdr_size;
chain->timestamp = jiffies;
+ chain->total_size = ntohs(frag_packet->total_size);
ret = true;
goto out;
}
@@ -196,9 +197,11 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,

out:
if (chain->size > batadv_frag_size_limit() ||
- ntohs(frag_packet->total_size) > batadv_frag_size_limit()) {
+ chain->total_size != ntohs(frag_packet->total_size) ||
+ chain->total_size > batadv_frag_size_limit()) {
/* Clear chain if total size of either the list or the packet
- * exceeds the maximum size of one merged packet.
+ * exceeds the maximum size of one merged packet. Don't allow
+ * packets to have different total_size.
*/
batadv_frag_clear_chain(&chain->head);
chain->size = 0;
@@ -231,19 +234,13 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
* Returns the merged skb or NULL on error.
*/
static struct sk_buff *
-batadv_frag_merge_packets(struct hlist_head *chain, struct sk_buff *skb)
+batadv_frag_merge_packets(struct hlist_head *chain)
{
struct batadv_frag_packet *packet;
struct batadv_frag_list_entry *entry;
struct sk_buff *skb_out = NULL;
int size, hdr_size = sizeof(struct batadv_frag_packet);

- /* Make sure incoming skb has non-bogus data. */
- packet = (struct batadv_frag_packet *)skb->data;
- size = ntohs(packet->total_size);
- if (size > batadv_frag_size_limit())
- goto free;
-
/* Remove first entry, as this is the destination for the rest of the
* fragments.
*/
@@ -252,6 +249,9 @@ batadv_frag_merge_packets(struct hlist_head *chain, struct sk_buff *skb)
skb_out = entry->skb;
kfree(entry);

+ packet = (struct batadv_frag_packet *)skb_out->data;
+ size = ntohs(packet->total_size) + hdr_size;
+
/* Make room for the rest of the fragments. */
if (pskb_expand_head(skb_out, 0, size - skb_out->len, GFP_ATOMIC) < 0) {
kfree_skb(skb_out);
@@ -308,7 +308,7 @@ bool batadv_frag_skb_buffer(struct sk_buff **skb,
if (hlist_empty(&head))
goto out;

- skb_out = batadv_frag_merge_packets(&head, *skb);
+ skb_out = batadv_frag_merge_packets(&head);
if (!skb_out)
goto out_err;

diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index c6388ce62f82..e43e4cb70421 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -132,6 +132,7 @@ struct batadv_orig_ifinfo {
* @timestamp: time (jiffie) of last received fragment
* @seqno: sequence number of the fragments in the list
* @size: accumulated size of packets in list
+ * @total_size: expected size of the assembled packet
*/
struct batadv_frag_table_entry {
struct hlist_head head;
@@ -139,6 +140,7 @@ struct batadv_frag_table_entry {
unsigned long timestamp;
uint16_t seqno;
uint16_t size;
+ uint16_t total_size;
};

/**
diff --git a/net/can/raw.c b/net/can/raw.c
index 59e4cab9cd76..2b13d49867ab 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -686,18 +686,19 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
} else
ifindex = ro->ifindex;

- if (ro->fd_frames) {
+ dev = dev_get_by_index(&init_net, ifindex);
+ if (!dev)
+ return -ENXIO;
+
+ err = -EINVAL;
+ if (ro->fd_frames && dev->mtu == CANFD_MTU) {
if (unlikely(size != CANFD_MTU && size != CAN_MTU))
- return -EINVAL;
+ goto put_dev;
} else {
if (unlikely(size != CAN_MTU))
- return -EINVAL;
+ goto put_dev;
}

- dev = dev_get_by_index(&init_net, ifindex);
- if (!dev)
- return -ENXIO;
-
skb = sock_alloc_send_skb(sk, size + sizeof(struct can_skb_priv),
msg->msg_flags & MSG_DONTWAIT, &err);
if (!skb)
diff --git a/net/core/dev.c b/net/core/dev.c
index 0a32a1dcb101..5fdda6aa5d1e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4170,6 +4170,10 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
skb->vlan_tci = 0;
skb->dev = napi->dev;
skb->skb_iif = 0;
+
+ /* eth_type_trans() assumes pkt_type is PACKET_HOST */
+ skb->pkt_type = PACKET_HOST;
+
skb->encapsulation = 0;
skb_shinfo(skb)->gso_type = 0;
skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 2373ca1d1493..5fa63c1c7baa 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2360,6 +2360,11 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
return -EINVAL;
}

+ if (dev->type != ARPHRD_ETHER) {
+ pr_info("PF_BRIDGE: FDB add only supported for Ethernet devices\n");
+ return -EINVAL;
+ }
+
addr = nla_data(tb[NDA_LLADDR]);

err = -EOPNOTSUPP;
@@ -2457,6 +2462,11 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
return -EINVAL;
}

+ if (dev->type != ARPHRD_ETHER) {
+ pr_info("PF_BRIDGE: FDB delete only supported for Ethernet devices\n");
+ return -EINVAL;
+ }
+
addr = nla_data(tb[NDA_LLADDR]);

err = -EOPNOTSUPP;
@@ -2536,6 +2546,9 @@ int ndo_dflt_fdb_dump(struct sk_buff *skb,
{
int err;

+ if (dev->type != ARPHRD_ETHER)
+ return -EINVAL;
+
netif_addr_lock_bh(dev);
err = nlmsg_populate_fdb(skb, cb, dev, &idx, &dev->uc);
if (err)
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 25be314d0e17..8914ccb1cb60 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -376,20 +376,18 @@ static int cipso_v4_cache_check(const unsigned char *key,
* negative values on failure.
*
*/
-int cipso_v4_cache_add(const struct sk_buff *skb,
+int cipso_v4_cache_add(const unsigned char *cipso_ptr,
const struct netlbl_lsm_secattr *secattr)
{
int ret_val = -EPERM;
u32 bkt;
struct cipso_v4_map_cache_entry *entry = NULL;
struct cipso_v4_map_cache_entry *old_entry = NULL;
- unsigned char *cipso_ptr;
u32 cipso_ptr_len;

if (!cipso_v4_cache_enabled || cipso_v4_cache_bucketsize <= 0)
return 0;

- cipso_ptr = CIPSO_V4_OPTPTR(skb);
cipso_ptr_len = cipso_ptr[1];

entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
@@ -1591,6 +1589,44 @@ static int cipso_v4_parsetag_loc(const struct cipso_v4_doi *doi_def,
return 0;
}

+/**
+ * cipso_v4_optptr - Find the CIPSO option in the packet
+ * @skb: the packet
+ *
+ * Description:
+ * Parse the packet's IP header looking for a CIPSO option. Returns a pointer
+ * to the start of the CIPSO option on success, NULL if one is not found.
+ *
+ */
+unsigned char *cipso_v4_optptr(const struct sk_buff *skb)
+{
+ const struct iphdr *iph = ip_hdr(skb);
+ unsigned char *optptr = (unsigned char *)&(ip_hdr(skb)[1]);
+ int optlen;
+ int taglen;
+
+ for (optlen = iph->ihl*4 - sizeof(struct iphdr); optlen > 1; ) {
+ switch (optptr[0]) {
+ case IPOPT_END:
+ return NULL;
+ case IPOPT_NOOP:
+ taglen = 1;
+ break;
+ default:
+ taglen = optptr[1];
+ }
+ if (!taglen || taglen > optlen)
+ return NULL;
+ if (optptr[0] == IPOPT_CIPSO)
+ return optptr;
+
+ optlen -= taglen;
+ optptr += taglen;
+ }
+
+ return NULL;
+}
+
/**
* cipso_v4_validate - Validate a CIPSO option
* @option: the start of the option, on error it is set to point to the error
@@ -2136,8 +2172,8 @@ void cipso_v4_req_delattr(struct request_sock *req)
* on success and negative values on failure.
*
*/
-static int cipso_v4_getattr(const unsigned char *cipso,
- struct netlbl_lsm_secattr *secattr)
+int cipso_v4_getattr(const unsigned char *cipso,
+ struct netlbl_lsm_secattr *secattr)
{
int ret_val = -ENOMSG;
u32 doi;
@@ -2322,22 +2358,6 @@ int cipso_v4_skbuff_delattr(struct sk_buff *skb)
return 0;
}

-/**
- * cipso_v4_skbuff_getattr - Get the security attributes from the CIPSO option
- * @skb: the packet
- * @secattr: the security attributes
- *
- * Description:
- * Parse the given packet's CIPSO option and return the security attributes.
- * Returns zero on success and negative values on failure.
- *
- */
-int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
- struct netlbl_lsm_secattr *secattr)
-{
- return cipso_v4_getattr(CIPSO_V4_OPTPTR(skb), secattr);
-}
-
/*
* Setup Functions
*/
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 567a8646bd47..2f1a3da67262 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1681,10 +1681,10 @@ static void fib6_prune_clones(struct net *net, struct fib6_node *fn)
static int fib6_update_sernum(struct rt6_info *rt, void *arg)
{
__u32 sernum = *(__u32 *)arg;
+ struct fib6_node *fn = rcu_dereference(rt->rt6i_node);

- if (rt->rt6i_node &&
- rt->rt6i_node->fn_sernum != sernum)
- rt->rt6i_node->fn_sernum = sernum;
+ if (fn && fn->fn_sernum != sernum)
+ fn->fn_sernum = sernum;

return 0;
}
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 922353050495..6542693e1c17 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -297,6 +297,7 @@ static int vti6_rcv(struct sk_buff *skb)
return 0;
}

+ ipv6h = ipv6_hdr(skb);
if (!ip6_tnl_rcv_ctl(t, &ipv6h->daddr, &ipv6h->saddr)) {
t->dev->stats.rx_dropped++;
rcu_read_unlock();
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 79763be1fda6..283f4fd27b2b 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1568,10 +1568,9 @@ int ndisc_rcv(struct sk_buff *skb)
return 0;
}

- memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
-
switch (msg->icmph.icmp6_type) {
case NDISC_NEIGHBOUR_SOLICITATION:
+ memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
ndisc_recv_ns(skb);
break;

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 943fc485b5ed..22b7bd8299ed 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1627,12 +1627,7 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
goto err_sock;
}

- sk = sock->sk;
-
- sock_hold(sk);
- tunnel->sock = sk;
tunnel->l2tp_net = net;
-
pn = l2tp_pernet(net);

spin_lock_bh(&pn->l2tp_tunnel_list_lock);
@@ -1647,6 +1642,10 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
list_add_rcu(&tunnel->list, &pn->l2tp_tunnel_list);
spin_unlock_bh(&pn->l2tp_tunnel_list_lock);

+ sk = sock->sk;
+ sock_hold(sk);
+ tunnel->sock = sk;
+
if (tunnel->encap == L2TP_ENCAPTYPE_UDP) {
udp_sk(sk)->encap_type = UDP_ENCAP_L2TPINUDP;
udp_sk(sk)->encap_rcv = l2tp_udp_encap_recv;
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 9735705f0618..3fdbc4fe6976 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -723,7 +723,6 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
struct sk_buff *skb = NULL;
struct sock *sk = sock->sk;
struct llc_sock *llc = llc_sk(sk);
- unsigned long cpu_flags;
size_t copied = 0;
u32 peek_seq = 0;
u32 *seq, skb_len;
@@ -849,9 +848,8 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
goto copy_uaddr;

if (!(flags & MSG_PEEK)) {
- spin_lock_irqsave(&sk->sk_receive_queue.lock, cpu_flags);
- sk_eat_skb(sk, skb, false);
- spin_unlock_irqrestore(&sk->sk_receive_queue.lock, cpu_flags);
+ skb_unlink(skb, &sk->sk_receive_queue);
+ kfree_skb(skb);
*seq = 0;
}

@@ -872,10 +870,9 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
llc_cmsg_rcv(msg, skb);

if (!(flags & MSG_PEEK)) {
- spin_lock_irqsave(&sk->sk_receive_queue.lock, cpu_flags);
- sk_eat_skb(sk, skb, false);
- spin_unlock_irqrestore(&sk->sk_receive_queue.lock, cpu_flags);
- *seq = 0;
+ skb_unlink(skb, &sk->sk_receive_queue);
+ kfree_skb(skb);
+ *seq = 0;
}

goto out;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index da555f878db7..cb35c4f48747 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -955,6 +955,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
if (local->open_count == 0)
ieee80211_clear_tx_pending(local);

+ sdata->vif.bss_conf.beacon_int = 0;
+
/*
* If the interface goes down while suspended, presumably because
* the device was unplugged and that happens before our resume,
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index ebdc2d160817..87d1722b6b1b 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -967,6 +967,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
*/
if (rx->skb->len >= 24 && rx->sta &&
!ieee80211_is_ctl(hdr->frame_control) &&
+ !ieee80211_is_nullfunc(hdr->frame_control) &&
!ieee80211_is_qos_nullfunc(hdr->frame_control) &&
!is_multicast_ether_addr(hdr->addr1)) {
if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index ca6131c452b5..d698d23dceed 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -417,8 +417,8 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
if (tx->local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
info->hw_queue = tx->sdata->vif.cab_queue;

- /* no stations in PS mode */
- if (!atomic_read(&ps->num_sta_ps))
+ /* no stations in PS mode and no buffered packets */
+ if (!atomic_read(&ps->num_sta_ps) && skb_queue_empty(&ps->bc_buf))
return TX_CONTINUE;

info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM;
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 1a41bf30bb2e..92f32efde30b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1682,16 +1682,17 @@ static int nf_tables_getrule(struct sock *nlsk, struct sk_buff *skb,
static void nf_tables_rule_destroy(const struct nft_ctx *ctx,
struct nft_rule *rule)
{
- struct nft_expr *expr;
+ struct nft_expr *expr, *next;

/*
* Careful: some expressions might not be initialized in case this
* is called on error from nf_tables_newrule().
*/
expr = nft_expr_first(rule);
- while (expr->ops && expr != nft_expr_last(rule)) {
+ while (expr != nft_expr_last(rule) && expr->ops) {
+ next = nft_expr_next(expr);
nf_tables_expr_destroy(ctx, expr);
- expr = nft_expr_next(expr);
+ expr = next;
}
kfree(rule);
}
@@ -1767,16 +1768,13 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,

if (chain->use == UINT_MAX)
return -EOVERFLOW;
- }

- if (nla[NFTA_RULE_POSITION]) {
- if (!(nlh->nlmsg_flags & NLM_F_CREATE))
- return -EOPNOTSUPP;
-
- pos_handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_POSITION]));
- old_rule = __nf_tables_rule_lookup(chain, pos_handle);
- if (IS_ERR(old_rule))
- return PTR_ERR(old_rule);
+ if (nla[NFTA_RULE_POSITION]) {
+ pos_handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_POSITION]));
+ old_rule = __nf_tables_rule_lookup(chain, pos_handle);
+ if (IS_ERR(old_rule))
+ return PTR_ERR(old_rule);
+ }
}

nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla);
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 55be1e0a4a7f..cf8b3de56f63 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -398,6 +398,7 @@ nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
{
struct xt_match *match = expr->ops->data;
void *info = nft_expr_priv(expr);
+ struct module *me = match->me;
struct xt_mtdtor_param par;

par.net = ctx->net;
@@ -407,7 +408,7 @@ nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
if (par.match->destroy != NULL)
par.match->destroy(&par);

- module_put(match->me);
+ module_put(me);
}

static int
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 7a4e43a8acfa..acc74eba473f 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -380,6 +380,36 @@ textify_hooks(char *buf, size_t size, unsigned int mask, uint8_t nfproto)
return buf;
}

+/**
+ * xt_check_proc_name - check that name is suitable for /proc file creation
+ *
+ * @name: file name candidate
+ * @size: length of buffer
+ *
+ * some x_tables modules wish to create a file in /proc.
+ * This function makes sure that the name is suitable for this
+ * purpose, it checks that name is NUL terminated and isn't a 'special'
+ * name, like "..".
+ *
+ * returns negative number on error or 0 if name is useable.
+ */
+int xt_check_proc_name(const char *name, unsigned int size)
+{
+ if (name[0] == '\0')
+ return -EINVAL;
+
+ if (strnlen(name, size) == size)
+ return -ENAMETOOLONG;
+
+ if (strcmp(name, ".") == 0 ||
+ strcmp(name, "..") == 0 ||
+ strchr(name, '/'))
+ return -EINVAL;
+
+ return 0;
+}
+EXPORT_SYMBOL(xt_check_proc_name);
+
int xt_check_match(struct xt_mtchk_param *par,
unsigned int size, u_int8_t proto, bool inv_proto)
{
diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index 95b6dedc5ac7..5761e8e5a2f8 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -116,6 +116,22 @@ static void idletimer_tg_expired(unsigned long data)
schedule_work(&timer->work);
}

+static int idletimer_check_sysfs_name(const char *name, unsigned int size)
+{
+ int ret;
+
+ ret = xt_check_proc_name(name, size);
+ if (ret < 0)
+ return ret;
+
+ if (!strcmp(name, "power") ||
+ !strcmp(name, "subsystem") ||
+ !strcmp(name, "uevent"))
+ return -EINVAL;
+
+ return 0;
+}
+
static int idletimer_tg_create(struct idletimer_tg_info *info)
{
int ret;
@@ -126,6 +142,10 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
goto out;
}

+ ret = idletimer_check_sysfs_name(info->label, sizeof(info->label));
+ if (ret < 0)
+ goto out_free_timer;
+
info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL);
if (!info->timer->attr.attr.name) {
ret = -ENOMEM;
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 47dc6836830a..597d722fb645 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -668,8 +668,9 @@ static int hashlimit_mt_check(const struct xt_mtchk_param *par)

if (info->cfg.gc_interval == 0 || info->cfg.expire == 0)
return -EINVAL;
- if (info->name[sizeof(info->name)-1] != '\0')
- return -EINVAL;
+ ret = xt_check_proc_name(info->name, sizeof(info->name));
+ if (ret)
+ return ret;
if (par->family == NFPROTO_IPV4) {
if (info->cfg.srcmask > 32 || info->cfg.dstmask > 32)
return -EINVAL;
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index a9faae89f955..e0228d23ceae 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -355,9 +355,9 @@ static int recent_mt_check(const struct xt_mtchk_param *par,
info->hit_count, ip_pkt_list_tot);
return -EINVAL;
}
- if (info->name[0] == '\0' ||
- strnlen(info->name, XT_RECENT_NAME_LEN) == XT_RECENT_NAME_LEN)
- return -EINVAL;
+ ret = xt_check_proc_name(info->name, sizeof(info->name));
+ if (ret)
+ return ret;

mutex_lock(&recent_mutex);
t = recent_table_lookup(recent_net, info->name);
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index 8473d34f2e3a..892b26196c60 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -948,10 +948,12 @@ int netlbl_skbuff_getattr(const struct sk_buff *skb,
u16 family,
struct netlbl_lsm_secattr *secattr)
{
+ unsigned char *ptr;
+
switch (family) {
case AF_INET:
- if (CIPSO_V4_OPTEXIST(skb) &&
- cipso_v4_skbuff_getattr(skb, secattr) == 0)
+ ptr = cipso_v4_optptr(skb);
+ if (ptr && cipso_v4_getattr(ptr, secattr) == 0)
return 0;
break;
#if IS_ENABLED(CONFIG_IPV6)
@@ -977,7 +979,7 @@ int netlbl_skbuff_getattr(const struct sk_buff *skb,
*/
void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway)
{
- if (CIPSO_V4_OPTEXIST(skb))
+ if (cipso_v4_optptr(skb))
cipso_v4_error(skb, error, gateway);
}

@@ -1009,11 +1011,14 @@ void netlbl_cache_invalidate(void)
int netlbl_cache_add(const struct sk_buff *skb,
const struct netlbl_lsm_secattr *secattr)
{
+ unsigned char *ptr;
+
if ((secattr->flags & NETLBL_SECATTR_CACHE) == 0)
return -ENOMSG;

- if (CIPSO_V4_OPTEXIST(skb))
- return cipso_v4_cache_add(skb, secattr);
+ ptr = cipso_v4_optptr(skb);
+ if (ptr)
+ return cipso_v4_cache_add(ptr, secattr);

return -ENOMSG;
}
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index bf5882a4737f..62d69641f6e5 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -437,7 +437,7 @@ static int gred_change(struct Qdisc *sch, struct nlattr *opt)
return err;

if (tb[TCA_GRED_PARMS] == NULL && tb[TCA_GRED_STAB] == NULL)
- return gred_change_table_def(sch, opt);
+ return gred_change_table_def(sch, tb[TCA_GRED_DPS]);

if (tb[TCA_GRED_PARMS] == NULL ||
tb[TCA_GRED_STAB] == NULL)
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 265be00a4ac5..4ba1fd4527fa 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1641,6 +1641,7 @@ priv_release_snd_buf(struct rpc_rqst *rqstp)
for (i=0; i < rqstp->rq_enc_pages_num; i++)
__free_page(rqstp->rq_enc_pages[i]);
kfree(rqstp->rq_enc_pages);
+ rqstp->rq_release_snd_buf = NULL;
}

static int
@@ -1649,6 +1650,9 @@ alloc_enc_pages(struct rpc_rqst *rqstp)
struct xdr_buf *snd_buf = &rqstp->rq_snd_buf;
int first, last, i;

+ if (rqstp->rq_release_snd_buf)
+ rqstp->rq_release_snd_buf(rqstp);
+
if (snd_buf->page_len == 0) {
rqstp->rq_enc_pages_num = 0;
return 0;
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index b4737fbdec13..de5e3636d5ad 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -906,7 +906,7 @@ static void call_xpt_users(struct svc_xprt *xprt)
spin_lock(&xprt->xpt_lock);
while (!list_empty(&xprt->xpt_users)) {
u = list_first_entry(&xprt->xpt_users, struct svc_xpt_user, list);
- list_del(&u->list);
+ list_del_init(&u->list);
u->callback(u);
}
spin_unlock(&xprt->xpt_lock);
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 25ef792dfee6..6809eca6fce3 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -511,7 +511,7 @@ EXPORT_SYMBOL_GPL(xdr_commit_encode);

__be32 *xdr_get_next_encode_buffer(struct xdr_stream *xdr, size_t nbytes)
{
- static __be32 *p;
+ __be32 *p;
int space_left;
int frag1bytes, frag2bytes;

@@ -637,11 +637,10 @@ void xdr_truncate_encode(struct xdr_stream *xdr, size_t len)
/* xdr->iov should already be NULL */
return;
}
- if (fraglen) {
+ if (fraglen)
xdr->end = head->iov_base + head->iov_len;
- xdr->page_ptr--;
- }
/* (otherwise assume xdr->end is already set) */
+ xdr->page_ptr--;
head->iov_len = len;
buf->len = len;
xdr->p = head->iov_base + head->iov_len;
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 51c63165073c..7d030e4032bf 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -721,8 +721,15 @@ void xprt_connect(struct rpc_task *task)
return;
if (xprt_test_and_set_connecting(xprt))
return;
- xprt->stat.connect_start = jiffies;
- xprt->ops->connect(xprt, task);
+ /* Race breaker */
+ if (!xprt_connected(xprt)) {
+ xprt->stat.connect_start = jiffies;
+ xprt->ops->connect(xprt, task);
+ } else {
+ xprt_clear_connecting(xprt);
+ task->tk_status = 0;
+ rpc_wake_up_queued_task(&xprt->pending, task);
+ }
}
}

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index fcee044f2ee8..28a8e0b924db 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -274,6 +274,31 @@ vmci_transport_send_control_pkt_bh(struct sockaddr_vm *src,
false);
}

+static int
+vmci_transport_alloc_send_control_pkt(struct sockaddr_vm *src,
+ struct sockaddr_vm *dst,
+ enum vmci_transport_packet_type type,
+ u64 size,
+ u64 mode,
+ struct vmci_transport_waiting_info *wait,
+ u16 proto,
+ struct vmci_handle handle)
+{
+ struct vmci_transport_packet *pkt;
+ int err;
+
+ pkt = kmalloc(sizeof(*pkt), GFP_KERNEL);
+ if (!pkt)
+ return -ENOMEM;
+
+ err = __vmci_transport_send_control_pkt(pkt, src, dst, type, size,
+ mode, wait, proto, handle,
+ true);
+ kfree(pkt);
+
+ return err;
+}
+
static int
vmci_transport_send_control_pkt(struct sock *sk,
enum vmci_transport_packet_type type,
@@ -283,9 +308,7 @@ vmci_transport_send_control_pkt(struct sock *sk,
u16 proto,
struct vmci_handle handle)
{
- struct vmci_transport_packet *pkt;
struct vsock_sock *vsk;
- int err;

vsk = vsock_sk(sk);

@@ -295,17 +318,10 @@ vmci_transport_send_control_pkt(struct sock *sk,
if (!vsock_addr_bound(&vsk->remote_addr))
return -EINVAL;

- pkt = kmalloc(sizeof(*pkt), GFP_KERNEL);
- if (!pkt)
- return -ENOMEM;
-
- err = __vmci_transport_send_control_pkt(pkt, &vsk->local_addr,
- &vsk->remote_addr, type, size,
- mode, wait, proto, handle,
- true);
- kfree(pkt);
-
- return err;
+ return vmci_transport_alloc_send_control_pkt(&vsk->local_addr,
+ &vsk->remote_addr,
+ type, size, mode,
+ wait, proto, handle);
}

static int vmci_transport_send_reset_bh(struct sockaddr_vm *dst,
@@ -323,12 +339,29 @@ static int vmci_transport_send_reset_bh(struct sockaddr_vm *dst,
static int vmci_transport_send_reset(struct sock *sk,
struct vmci_transport_packet *pkt)
{
+ struct sockaddr_vm *dst_ptr;
+ struct sockaddr_vm dst;
+ struct vsock_sock *vsk;
+
if (pkt->type == VMCI_TRANSPORT_PACKET_TYPE_RST)
return 0;
- return vmci_transport_send_control_pkt(sk,
- VMCI_TRANSPORT_PACKET_TYPE_RST,
- 0, 0, NULL, VSOCK_PROTO_INVALID,
- VMCI_INVALID_HANDLE);
+
+ vsk = vsock_sk(sk);
+
+ if (!vsock_addr_bound(&vsk->local_addr))
+ return -EINVAL;
+
+ if (vsock_addr_bound(&vsk->remote_addr)) {
+ dst_ptr = &vsk->remote_addr;
+ } else {
+ vsock_addr_init(&dst, pkt->dg.src.context,
+ pkt->src_port);
+ dst_ptr = &dst;
+ }
+ return vmci_transport_alloc_send_control_pkt(&vsk->local_addr, dst_ptr,
+ VMCI_TRANSPORT_PACKET_TYPE_RST,
+ 0, 0, NULL, VSOCK_PROTO_INVALID,
+ VMCI_INVALID_HANDLE);
}

static int vmci_transport_send_negotiate(struct sock *sk, size_t size)
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 1f9558155e1e..346e741dd3b2 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -631,7 +631,7 @@ void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si)
{
spin_lock_bh(&net->xfrm.xfrm_state_lock);
si->sadcnt = net->xfrm.state_num;
- si->sadhcnt = net->xfrm.state_hmask;
+ si->sadhcnt = net->xfrm.state_hmask + 1;
si->sadhmcnt = xfrm_state_hashmax;
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
}
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index d30afe461070..cc5b47ae7519 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -26,14 +26,14 @@
#include "ima.h"

static int valid_policy = 1;
-#define TMPBUFLEN 12
+
static ssize_t ima_show_htable_value(char __user *buf, size_t count,
loff_t *ppos, atomic_long_t *val)
{
- char tmpbuf[TMPBUFLEN];
+ char tmpbuf[32]; /* greater than largest 'long' string value */
ssize_t len;

- len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val));
+ len = scnprintf(tmpbuf, sizeof(tmpbuf), "%li\n", atomic_long_read(val));
return simple_read_from_buffer(buf, count, ppos, tmpbuf, len);
}

diff --git a/sound/core/control.c b/sound/core/control.c
index fdffe37d40b8..e5d673e13d3a 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -318,6 +318,40 @@ static int snd_ctl_find_hole(struct snd_card *card, unsigned int count)
return 0;
}

+/* add a new kcontrol object; call with card->controls_rwsem locked */
+static int __snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
+{
+ struct snd_ctl_elem_id id;
+ unsigned int idx;
+ unsigned int count;
+
+ id = kcontrol->id;
+ if (id.index > UINT_MAX - kcontrol->count)
+ return -EINVAL;
+
+ if (snd_ctl_find_id(card, &id)) {
+ dev_err(card->dev,
+ "control %i:%i:%i:%s:%i is already present\n",
+ id.iface, id.device, id.subdevice, id.name, id.index);
+ return -EBUSY;
+ }
+
+ if (snd_ctl_find_hole(card, kcontrol->count) < 0)
+ return -ENOMEM;
+
+ list_add_tail(&kcontrol->list, &card->controls);
+ card->controls_count += kcontrol->count;
+ kcontrol->id.numid = card->last_numid + 1;
+ card->last_numid += kcontrol->count;
+
+ id = kcontrol->id;
+ count = kcontrol->count;
+ for (idx = 0; idx < count; idx++, id.index++, id.numid++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
+
+ return 0;
+}
+
/**
* snd_ctl_add - add the control instance to the card
* @card: the card instance
@@ -334,44 +368,18 @@ static int snd_ctl_find_hole(struct snd_card *card, unsigned int count)
*/
int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
- struct snd_ctl_elem_id id;
- unsigned int idx;
- unsigned int count;
int err = -EINVAL;

if (! kcontrol)
return err;
if (snd_BUG_ON(!card || !kcontrol->info))
goto error;
- id = kcontrol->id;
- if (id.index > UINT_MAX - kcontrol->count)
- goto error;

down_write(&card->controls_rwsem);
- if (snd_ctl_find_id(card, &id)) {
- up_write(&card->controls_rwsem);
- dev_err(card->dev, "control %i:%i:%i:%s:%i is already present\n",
- id.iface,
- id.device,
- id.subdevice,
- id.name,
- id.index);
- err = -EBUSY;
- goto error;
- }
- if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
- up_write(&card->controls_rwsem);
- err = -ENOMEM;
- goto error;
- }
- list_add_tail(&kcontrol->list, &card->controls);
- card->controls_count += kcontrol->count;
- kcontrol->id.numid = card->last_numid + 1;
- card->last_numid += kcontrol->count;
- count = kcontrol->count;
+ err = __snd_ctl_add(card, kcontrol);
up_write(&card->controls_rwsem);
- for (idx = 0; idx < count; idx++, id.index++, id.numid++)
- snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
+ if (err < 0)
+ goto error;
return 0;

error:
@@ -1260,14 +1268,17 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
_kctl->private_data = ue;
for (idx = 0; idx < _kctl->count; idx++)
_kctl->vd[idx].owner = file;
- err = snd_ctl_add(card, _kctl);
- if (err < 0)
- return err;
-
down_write(&card->controls_rwsem);
+ err = __snd_ctl_add(card, _kctl);
+ if (err < 0) {
+ snd_ctl_free_one(_kctl);
+ goto unlock;
+ }
+
card->user_ctl_count++;
- up_write(&card->controls_rwsem);

+ unlock:
+ up_write(&card->controls_rwsem);
return 0;
}

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index c89154b318cf..41bae2baea71 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1075,7 +1075,7 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
runtime->oss.rate = params_rate(params);

vfree(runtime->oss.buffer);
- runtime->oss.buffer = vmalloc(runtime->oss.period_bytes);
+ runtime->oss.buffer = vzalloc(runtime->oss.period_bytes);
if (!runtime->oss.buffer) {
err = -ENOMEM;
goto failure;
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index a84a1d3d23e5..ef1f8b11ba60 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -67,7 +67,7 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
size /= 8;
if (plugin->buf_frames < frames) {
vfree(plugin->buf);
- plugin->buf = vmalloc(size);
+ plugin->buf = vzalloc(size);
plugin->buf_frames = frames;
}
if (!plugin->buf) {
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index d38c60671969..7c407ab2d82a 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2025,7 +2025,8 @@ int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream)

static void pcm_release_private(struct snd_pcm_substream *substream)
{
- snd_pcm_unlink(substream);
+ if (snd_pcm_stream_linked(substream))
+ snd_pcm_unlink(substream);
}

void snd_pcm_release_substream(struct snd_pcm_substream *substream)
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 360b08b03e1d..1e9748a89664 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -1531,7 +1531,6 @@ static int snd_wss_playback_open(struct snd_pcm_substream *substream)
if (err < 0) {
if (chip->release_dma)
chip->release_dma(chip, chip->dma_private_data, chip->dma1);
- snd_free_pages(runtime->dma_area, runtime->dma_bytes);
return err;
}
chip->playback_substream = substream;
@@ -1572,7 +1571,6 @@ static int snd_wss_capture_open(struct snd_pcm_substream *substream)
if (err < 0) {
if (chip->release_dma)
chip->release_dma(chip, chip->dma_private_data, chip->dma2);
- snd_free_pages(runtime->dma_area, runtime->dma_bytes);
return err;
}
chip->capture_substream = substream;
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 14ad54b7928c..416c46bf2a12 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -829,7 +829,7 @@ static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_
{
struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0xff;
+ int shift = (kcontrol->private_value >> 8) & 0x0f;
int mask = (kcontrol->private_value >> 16) & 0xff;
// int invert = (kcontrol->private_value >> 24) & 0xff;
unsigned short value, old, new;
diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index 04402c14cb23..9847b669cf3c 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -582,7 +582,7 @@
#define SPI_PL_BIT_R_R (2<<7) /* right channel = right */
#define SPI_PL_BIT_R_C (3<<7) /* right channel = (L+R)/2 */
#define SPI_IZD_REG 2
-#define SPI_IZD_BIT (1<<4) /* infinite zero detect */
+#define SPI_IZD_BIT (0<<4) /* infinite zero detect */

#define SPI_FMT_REG 3
#define SPI_FMT_BIT_RJ (0<<0) /* right justified mode */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 93cfc305f04e..ab5b15cede80 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1914,6 +1914,10 @@ static const struct pci_device_id azx_ids[] = {
/* AMD Hudson */
{ PCI_DEVICE(0x1022, 0x780d),
.driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
+ /* AMD Stoney */
+ { PCI_DEVICE(0x1022, 0x157a),
+ .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
+ AZX_DCAPS_PM_RUNTIME },
/* AMD Raven */
{ PCI_DEVICE(0x1022, 0x15e3),
.driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 67398f350eea..b66c787d66b6 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3465,6 +3465,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT_PINCFG_LENOVO_TP410),
SND_PCI_QUIRK(0x17aa, 0x21db, "Lenovo X220-tablet", CXT_PINCFG_LENOVO_TP410),
SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo IdeaPad Z560", CXT_FIXUP_MUTE_LED_EAPD),
+ SND_PCI_QUIRK(0x17aa, 0x3905, "Lenovo G50-30", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 4e91bcaa3664..a3e759157b26 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -1146,10 +1146,8 @@ static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
runtime->hw = snd_cs4231_playback;

err = snd_cs4231_open(chip, CS4231_MODE_PLAY);
- if (err < 0) {
- snd_free_pages(runtime->dma_area, runtime->dma_bytes);
+ if (err < 0)
return err;
- }
chip->playback_substream = substream;
chip->p_periods_sent = 0;
snd_pcm_set_sync(substream);
@@ -1167,10 +1165,8 @@ static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
runtime->hw = snd_cs4231_capture;

err = snd_cs4231_open(chip, CS4231_MODE_RECORD);
- if (err < 0) {
- snd_free_pages(runtime->dma_area, runtime->dma_bytes);
+ if (err < 0)
return err;
- }
chip->capture_substream = substream;
chip->c_periods_sent = 0;
snd_pcm_set_sync(substream);
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 32ed66722c54..7b56673170c0 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -396,13 +396,15 @@ static int snd_usb_audio_create(struct usb_interface *intf,
}

mutex_init(&chip->mutex);
- init_rwsem(&chip->shutdown_rwsem);
+ init_waitqueue_head(&chip->shutdown_wait);
chip->index = idx;
chip->dev = dev;
chip->card = card;
chip->setup = device_setup[idx];
chip->autoclock = autoclock;
- chip->probing = 1;
+ atomic_set(&chip->active, 1); /* avoid autopm during probing */
+ atomic_set(&chip->usage_count, 0);
+ atomic_set(&chip->shutdown, 0);

chip->usb_id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
@@ -525,12 +527,12 @@ snd_usb_audio_probe(struct usb_device *dev,
mutex_lock(&register_mutex);
for (i = 0; i < SNDRV_CARDS; i++) {
if (usb_chip[i] && usb_chip[i]->dev == dev) {
- if (usb_chip[i]->shutdown) {
+ if (atomic_read(&usb_chip[i]->shutdown)) {
dev_err(&dev->dev, "USB device is in the shutdown state, cannot create a card instance\n");
goto __error;
}
chip = usb_chip[i];
- chip->probing = 1;
+ atomic_inc(&chip->active); /* avoid autopm */
break;
}
}
@@ -586,15 +588,18 @@ snd_usb_audio_probe(struct usb_device *dev,

usb_chip[chip->index] = chip;
chip->num_interfaces++;
- chip->probing = 0;
+ atomic_dec(&chip->active);
mutex_unlock(&register_mutex);
return chip;

__error:
if (chip) {
+ /* chip->active is inside the chip->card object,
+ * decrement before memory is possibly returned.
+ */
+ atomic_dec(&chip->active);
if (!chip->num_interfaces)
snd_card_free(chip->card);
- chip->probing = 0;
}
mutex_unlock(&register_mutex);
__err_val:
@@ -610,21 +615,21 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
{
struct snd_card *card;
struct list_head *p;
- bool was_shutdown;

if (chip == (void *)-1L)
return;

card = chip->card;
- down_write(&chip->shutdown_rwsem);
- was_shutdown = chip->shutdown;
- chip->shutdown = 1;
- up_write(&chip->shutdown_rwsem);

mutex_lock(&register_mutex);
- if (!was_shutdown) {
+ if (atomic_inc_return(&chip->shutdown) == 1) {
struct snd_usb_endpoint *ep;

+ /* wait until all pending tasks done;
+ * they are protected by snd_usb_lock_shutdown()
+ */
+ wait_event(chip->shutdown_wait,
+ !atomic_read(&chip->usage_count));
snd_card_disconnect(card);
/* release the pcm resources */
list_for_each(p, &chip->pcm_list) {
@@ -675,28 +680,50 @@ static void usb_audio_disconnect(struct usb_interface *intf)
usb_get_intfdata(intf));
}

-#ifdef CONFIG_PM
-
-int snd_usb_autoresume(struct snd_usb_audio *chip)
+/* lock the shutdown (disconnect) task and autoresume */
+int snd_usb_lock_shutdown(struct snd_usb_audio *chip)
{
- int err = -ENODEV;
+ int err;

- down_read(&chip->shutdown_rwsem);
- if (chip->probing || chip->in_pm)
- err = 0;
- else if (!chip->shutdown)
- err = usb_autopm_get_interface(chip->pm_intf);
- up_read(&chip->shutdown_rwsem);
+ atomic_inc(&chip->usage_count);
+ if (atomic_read(&chip->shutdown)) {
+ err = -EIO;
+ goto error;
+ }
+ err = snd_usb_autoresume(chip);
+ if (err < 0)
+ goto error;
+ return 0;

+ error:
+ if (atomic_dec_and_test(&chip->usage_count))
+ wake_up(&chip->shutdown_wait);
return err;
}

+/* autosuspend and unlock the shutdown */
+void snd_usb_unlock_shutdown(struct snd_usb_audio *chip)
+{
+ snd_usb_autosuspend(chip);
+ if (atomic_dec_and_test(&chip->usage_count))
+ wake_up(&chip->shutdown_wait);
+}
+
+#ifdef CONFIG_PM
+
+int snd_usb_autoresume(struct snd_usb_audio *chip)
+{
+ if (atomic_read(&chip->shutdown))
+ return -EIO;
+ if (atomic_inc_return(&chip->active) == 1)
+ return usb_autopm_get_interface(chip->pm_intf);
+ return 0;
+}
+
void snd_usb_autosuspend(struct snd_usb_audio *chip)
{
- down_read(&chip->shutdown_rwsem);
- if (!chip->shutdown && !chip->probing && !chip->in_pm)
+ if (atomic_dec_and_test(&chip->active))
usb_autopm_put_interface(chip->pm_intf);
- up_read(&chip->shutdown_rwsem);
}

static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
@@ -744,7 +771,7 @@ static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume)
if (--chip->num_suspended_intf)
return 0;

- chip->in_pm = 1;
+ atomic_inc(&chip->active); /* avoid autopm */
/*
* ALSA leaves material resumption to user space
* we just notify and restart the mixers
@@ -760,7 +787,7 @@ static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume)
chip->autosuspended = 0;

err_out:
- chip->in_pm = 0;
+ atomic_dec(&chip->active); /* allow autopm after this point */
return err;
}

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index e87436826b3b..0f95338aa81d 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -353,8 +353,10 @@ static void snd_complete_urb(struct urb *urb)
if (unlikely(urb->status == -ENOENT || /* unlinked */
urb->status == -ENODEV || /* device removed */
urb->status == -ECONNRESET || /* unlinked */
- urb->status == -ESHUTDOWN || /* device disabled */
- ep->chip->shutdown)) /* device disconnected */
+ urb->status == -ESHUTDOWN)) /* device disabled */
+ goto exit_clear;
+ /* device disconnected */
+ if (unlikely(atomic_read(&ep->chip->shutdown)))
goto exit_clear;

if (usb_pipeout(ep->pipe)) {
@@ -529,7 +531,7 @@ static int deactivate_urbs(struct snd_usb_endpoint *ep, bool force)
{
unsigned int i;

- if (!force && ep->chip->shutdown) /* to be sure... */
+ if (!force && atomic_read(&ep->chip->shutdown)) /* to be sure... */
return -EBADFD;

clear_bit(EP_FLAG_RUNNING, &ep->flags);
@@ -868,7 +870,7 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep)
int err;
unsigned int i;

- if (ep->chip->shutdown)
+ if (atomic_read(&ep->chip->shutdown))
return -EBADFD;

/* already running? */
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 9bce76497c48..caf392f2aea0 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -296,14 +296,11 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request,
int timeout = 10;
int idx = 0, err;

- err = snd_usb_autoresume(cval->mixer->chip);
+ err = snd_usb_lock_shutdown(chip);
if (err < 0)
return -EIO;

- down_read(&chip->shutdown_rwsem);
while (timeout-- > 0) {
- if (chip->shutdown)
- break;
idx = snd_usb_ctrl_intf(chip) | (cval->id << 8);
if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
@@ -319,8 +316,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request,
err = -EINVAL;

out:
- up_read(&chip->shutdown_rwsem);
- snd_usb_autosuspend(cval->mixer->chip);
+ snd_usb_unlock_shutdown(chip);
return err;
}

@@ -343,21 +339,15 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request,

memset(buf, 0, sizeof(buf));

- ret = snd_usb_autoresume(chip) ? -EIO : 0;
+ ret = snd_usb_lock_shutdown(chip) ? -EIO : 0;
if (ret)
goto error;

- down_read(&chip->shutdown_rwsem);
- if (chip->shutdown) {
- ret = -ENODEV;
- } else {
- idx = snd_usb_ctrl_intf(chip) | (cval->id << 8);
- ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
+ idx = snd_usb_ctrl_intf(chip) | (cval->id << 8);
+ ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx, idx, buf, size);
- }
- up_read(&chip->shutdown_rwsem);
- snd_usb_autosuspend(chip);
+ snd_usb_unlock_shutdown(chip);

if (ret < 0) {
error:
@@ -469,13 +459,12 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
value_set = convert_bytes_value(cval, value_set);
buf[0] = value_set & 0xff;
buf[1] = (value_set >> 8) & 0xff;
- err = snd_usb_autoresume(chip);
+
+ err = snd_usb_lock_shutdown(chip);
if (err < 0)
return -EIO;
- down_read(&chip->shutdown_rwsem);
+
while (timeout-- > 0) {
- if (chip->shutdown)
- break;
idx = snd_usb_ctrl_intf(chip) | (cval->id << 8);
if (snd_usb_ctl_msg(chip->dev,
usb_sndctrlpipe(chip->dev, 0), request,
@@ -490,8 +479,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
err = -EINVAL;

out:
- up_read(&chip->shutdown_rwsem);
- snd_usb_autosuspend(chip);
+ snd_usb_unlock_shutdown(chip);
return err;
}

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 89d32f066561..f1de40dc7091 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -302,11 +302,10 @@ static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
if (value > 1)
return -EINVAL;
changed = value != mixer->audigy2nx_leds[index];
- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown) {
- err = -ENODEV;
- goto out;
- }
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err < 0)
+ return err;
+
if (mixer->chip->usb_id == USB_ID(0x041e, 0x3042))
err = snd_usb_ctl_msg(mixer->chip->dev,
usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
@@ -323,8 +322,7 @@ static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
value, index + 2, NULL, 0);
- out:
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(mixer->chip);
if (err < 0)
return err;
mixer->audigy2nx_leds[index] = value;
@@ -418,16 +416,15 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,

for (i = 0; jacks[i].name; ++i) {
snd_iprintf(buffer, "%s: ", jacks[i].name);
- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- err = 0;
- else
- err = snd_usb_ctl_msg(mixer->chip->dev,
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err < 0)
+ return;
+ err = snd_usb_ctl_msg(mixer->chip->dev,
usb_rcvctrlpipe(mixer->chip->dev, 0),
UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
USB_RECIP_INTERFACE, 0,
jacks[i].unitid << 8, buf, 3);
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(mixer->chip);
if (err == 3 && (buf[0] == 3 || buf[0] == 6))
snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]);
else
@@ -476,17 +473,14 @@ static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol,
buf[1] = value ? 0x02 : 0x01;

changed = value != kcontrol->private_value;
- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown) {
- err = -ENODEV;
- goto out;
- }
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err < 0)
+ return err;
err = snd_usb_ctl_msg(mixer->chip->dev,
usb_sndctrlpipe(mixer->chip->dev, 0), UAC_SET_CUR,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
0x0400, 0x0e00, buf, 2);
- out:
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(mixer->chip);
if (err < 0)
return err;
kcontrol->private_value = value;
@@ -542,15 +536,14 @@ static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
else
new_status = old_status & ~0x02;
changed = new_status != old_status;
- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- err = -ENODEV;
- else
- err = snd_usb_ctl_msg(mixer->chip->dev,
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(mixer->chip->dev,
usb_sndctrlpipe(mixer->chip->dev, 0), 0x08,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
50, 0, &new_status, 1);
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(mixer->chip);
if (err < 0)
return err;
mixer->xonar_u1_status = new_status;
@@ -591,15 +584,14 @@ static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol,
u8 tmp;
int ret;

- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- ret = -ENODEV;
- else
- ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0, wIndex,
- &tmp, sizeof(tmp), 1000);
- up_read(&mixer->chip->shutdown_rwsem);
+ ret = snd_usb_lock_shutdown(mixer->chip);
+ if (ret < 0)
+ return ret;
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0, wIndex,
+ &tmp, sizeof(tmp), 1000);
+ snd_usb_unlock_shutdown(mixer->chip);

if (ret < 0) {
dev_err(&dev->dev,
@@ -622,15 +614,14 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
u16 wValue = ucontrol->value.integer.value[0];
int ret;

- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- ret = -ENODEV;
- else
- ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- wValue, wIndex,
- NULL, 0, 1000);
- up_read(&mixer->chip->shutdown_rwsem);
+ ret = snd_usb_lock_shutdown(mixer->chip);
+ if (ret < 0)
+ return ret;
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+ wValue, wIndex,
+ NULL, 0, 1000);
+ snd_usb_unlock_shutdown(mixer->chip);

if (ret < 0) {
dev_err(&dev->dev,
@@ -792,16 +783,15 @@ static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl,
id = pval->bUnitID;
validx = pval->validx;

- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- err = -ENODEV;
- else
- err = snd_usb_ctl_msg(chip->dev,
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(chip->dev,
usb_rcvctrlpipe(chip->dev, 0), UAC_GET_CUR,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx << 8, snd_usb_ctrl_intf(chip) | (id << 8),
value, val_len);
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(mixer->chip);
if (err < 0)
return err;

@@ -845,16 +835,15 @@ static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl,

if (!pval->is_cached) {
/* Read current value */
- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- err = -ENODEV;
- else
- err = snd_usb_ctl_msg(chip->dev,
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(chip->dev,
usb_rcvctrlpipe(chip->dev, 0), UAC_GET_CUR,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx << 8, snd_usb_ctrl_intf(chip) | (id << 8),
value, val_len);
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(mixer->chip);
if (err < 0)
return err;

@@ -866,16 +855,15 @@ static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl,
if (cur_val != new_val) {
value[0] = new_val;
value[1] = 0;
- down_read(&mixer->chip->shutdown_rwsem);
- if (mixer->chip->shutdown)
- err = -ENODEV;
- else
- err = snd_usb_ctl_msg(chip->dev,
+ err = snd_usb_lock_shutdown(chip);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(chip->dev,
usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
validx << 8, snd_usb_ctrl_intf(chip) | (id << 8),
value, val_len);
- up_read(&mixer->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(chip);
if (err < 0)
return err;

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 17e611064334..e4e4a7e3a96c 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -80,7 +80,7 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream
unsigned int hwptr_done;

subs = (struct snd_usb_substream *)substream->runtime->private_data;
- if (subs->stream->chip->shutdown)
+ if (atomic_read(&subs->stream->chip->shutdown))
return SNDRV_PCM_POS_XRUN;
spin_lock(&subs->lock);
hwptr_done = subs->hwptr_done;
@@ -713,12 +713,11 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}

- down_read(&subs->stream->chip->shutdown_rwsem);
- if (subs->stream->chip->shutdown)
- ret = -ENODEV;
- else
- ret = set_format(subs, fmt);
- up_read(&subs->stream->chip->shutdown_rwsem);
+ ret = snd_usb_lock_shutdown(subs->stream->chip);
+ if (ret < 0)
+ return ret;
+ ret = set_format(subs, fmt);
+ snd_usb_unlock_shutdown(subs->stream->chip);
if (ret < 0)
return ret;

@@ -741,13 +740,12 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream)
subs->cur_audiofmt = NULL;
subs->cur_rate = 0;
subs->period_bytes = 0;
- down_read(&subs->stream->chip->shutdown_rwsem);
- if (!subs->stream->chip->shutdown) {
+ if (!snd_usb_lock_shutdown(subs->stream->chip)) {
stop_endpoints(subs, true);
snd_usb_endpoint_deactivate(subs->sync_endpoint);
snd_usb_endpoint_deactivate(subs->data_endpoint);
+ snd_usb_unlock_shutdown(subs->stream->chip);
}
- up_read(&subs->stream->chip->shutdown_rwsem);
return snd_pcm_lib_free_vmalloc_buffer(substream);
}

@@ -769,11 +767,9 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
return -ENXIO;
}

- down_read(&subs->stream->chip->shutdown_rwsem);
- if (subs->stream->chip->shutdown) {
- ret = -ENODEV;
- goto unlock;
- }
+ ret = snd_usb_lock_shutdown(subs->stream->chip);
+ if (ret < 0)
+ return ret;
if (snd_BUG_ON(!subs->data_endpoint)) {
ret = -EIO;
goto unlock;
@@ -822,7 +818,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
ret = start_endpoints(subs, true);

unlock:
- up_read(&subs->stream->chip->shutdown_rwsem);
+ snd_usb_unlock_shutdown(subs->stream->chip);
return ret;
}

@@ -1224,9 +1220,11 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)

stop_endpoints(subs, true);

- if (!as->chip->shutdown && subs->interface >= 0) {
+ if (subs->interface >= 0 &&
+ !snd_usb_lock_shutdown(subs->stream->chip)) {
usb_set_interface(subs->dev, subs->interface, 0);
subs->interface = -1;
+ snd_usb_unlock_shutdown(subs->stream->chip);
}

subs->pcm_substream = NULL;
diff --git a/sound/usb/proc.c b/sound/usb/proc.c
index 5f761ab34c01..0ac89e294d31 100644
--- a/sound/usb/proc.c
+++ b/sound/usb/proc.c
@@ -46,14 +46,14 @@ static inline unsigned get_high_speed_hz(unsigned int usb_rate)
static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
{
struct snd_usb_audio *chip = entry->private_data;
- if (!chip->shutdown)
+ if (!atomic_read(&chip->shutdown))
snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
}

static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
{
struct snd_usb_audio *chip = entry->private_data;
- if (!chip->shutdown)
+ if (!atomic_read(&chip->shutdown))
snd_iprintf(buffer, "%04x:%04x\n",
USB_ID_VENDOR(chip->usb_id),
USB_ID_PRODUCT(chip->usb_id));
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index d74a9927c3d9..53c171f26b7b 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3281,19 +3281,14 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
.ifnum = 0,
.type = QUIRK_AUDIO_STANDARD_MIXER,
},
- /* Capture */
- {
- .ifnum = 1,
- .type = QUIRK_IGNORE_INTERFACE,
- },
/* Playback */
{
- .ifnum = 2,
+ .ifnum = 1,
.type = QUIRK_AUDIO_FIXED_ENDPOINT,
.data = &(const struct audioformat) {
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.channels = 2,
- .iface = 2,
+ .iface = 1,
.altsetting = 1,
.altset_idx = 1,
.attributes = UAC_EP_CS_ATTR_FILL_MAX |
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 991aa84491cd..4b4327b45606 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -37,11 +37,11 @@ struct snd_usb_audio {
struct usb_interface *pm_intf;
u32 usb_id;
struct mutex mutex;
- struct rw_semaphore shutdown_rwsem;
- unsigned int shutdown:1;
- unsigned int probing:1;
- unsigned int in_pm:1;
unsigned int autosuspended:1;
+ atomic_t active;
+ atomic_t shutdown;
+ atomic_t usage_count;
+ wait_queue_head_t shutdown_wait;
unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */

int num_interfaces;
@@ -116,4 +116,7 @@ struct snd_usb_audio_quirk {
#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))

+int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
+void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
+
#endif /* __USBAUDIO_H */
diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 543bba14ae2c..bdbe1da587af 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -135,7 +135,7 @@ struct config *prepare_default_config()
config->cpu = 0;
config->prio = SCHED_HIGH;
config->verbose = 0;
- strncpy(config->governor, "ondemand", 8);
+ strncpy(config->governor, "ondemand", sizeof(config->governor));

config->output = stdout;
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