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SubjectRe: Linux 5.10.160
Date
diff --git a/Makefile b/Makefile
index bb9fab281555..6f7dae2f1a4e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 10
-SUBLEVEL = 159
+SUBLEVEL = 160
EXTRAVERSION =
NAME = Dare mighty things

diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.c b/arch/x86/kernel/cpu/mtrr/mtrr.c
index 6a80f36b5d59..5f436cb4f7c4 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.c
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.c
@@ -794,8 +794,6 @@ void mtrr_ap_init(void)
if (!use_intel() || mtrr_aps_delayed_init)
return;

- rcu_cpu_starting(smp_processor_id());
-
/*
* Ideally we should hold mtrr_mutex here to avoid mtrr entries
* changed, but this routine will be called in cpu boot time,
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 8baff500914e..e8e5515fb7e9 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -229,6 +229,7 @@ static void notrace start_secondary(void *unused)
#endif
cpu_init_exception_handling();
cpu_init();
+ rcu_cpu_starting(raw_smp_processor_id());
x86_cpuinit.early_percpu_clock_init();
smp_callin();

diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c
index 21063335ab59..c07e327929ba 100644
--- a/drivers/net/can/usb/mcba_usb.c
+++ b/drivers/net/can/usb/mcba_usb.c
@@ -47,6 +47,10 @@
#define MCBA_VER_REQ_USB 1
#define MCBA_VER_REQ_CAN 2

+/* Drive the CAN_RES signal LOW "0" to activate R24 and R25 */
+#define MCBA_VER_TERMINATION_ON 0
+#define MCBA_VER_TERMINATION_OFF 1
+
#define MCBA_SIDL_EXID_MASK 0x8
#define MCBA_DLC_MASK 0xf
#define MCBA_DLC_RTR_MASK 0x40
@@ -469,7 +473,7 @@ static void mcba_usb_process_ka_usb(struct mcba_priv *priv,
priv->usb_ka_first_pass = false;
}

- if (msg->termination_state)
+ if (msg->termination_state == MCBA_VER_TERMINATION_ON)
priv->can.termination = MCBA_TERMINATION_ENABLED;
else
priv->can.termination = MCBA_TERMINATION_DISABLED;
@@ -789,9 +793,9 @@ static int mcba_set_termination(struct net_device *netdev, u16 term)
};

if (term == MCBA_TERMINATION_ENABLED)
- usb_msg.termination = 1;
+ usb_msg.termination = MCBA_VER_TERMINATION_ON;
else
- usb_msg.termination = 0;
+ usb_msg.termination = MCBA_VER_TERMINATION_OFF;

mcba_usb_xmit_cmd(priv, (struct mcba_usb_msg *)&usb_msg);

diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
index 6ef48eb3a77d..b163489489e9 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
@@ -874,7 +874,6 @@ area_cache_get(struct nfp_cpp *cpp, u32 id,
}

/* Adjust the start address to be cache size aligned */
- cache->id = id;
cache->addr = addr & ~(u64)(cache->size - 1);

/* Re-init to the new ID and address */
@@ -894,6 +893,8 @@ area_cache_get(struct nfp_cpp *cpp, u32 id,
return NULL;
}

+ cache->id = id;
+
exit:
/* Adjust offset */
*offset = addr - cache->addr;
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 089f39103584..c222d7bf6ce1 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -817,6 +817,8 @@ static blk_status_t nvme_setup_prp_simple(struct nvme_dev *dev,
cmnd->dptr.prp1 = cpu_to_le64(iod->first_dma);
if (bv->bv_len > first_prp_len)
cmnd->dptr.prp2 = cpu_to_le64(iod->first_dma + first_prp_len);
+ else
+ cmnd->dptr.prp2 = 0;
return BLK_STS_OK;
}

diff --git a/drivers/pinctrl/mediatek/mtk-eint.c b/drivers/pinctrl/mediatek/mtk-eint.c
index 22736f60c16c..64a32d3ca481 100644
--- a/drivers/pinctrl/mediatek/mtk-eint.c
+++ b/drivers/pinctrl/mediatek/mtk-eint.c
@@ -278,12 +278,15 @@ static struct irq_chip mtk_eint_irq_chip = {

static unsigned int mtk_eint_hw_init(struct mtk_eint *eint)
{
- void __iomem *reg = eint->base + eint->regs->dom_en;
+ void __iomem *dom_en = eint->base + eint->regs->dom_en;
+ void __iomem *mask_set = eint->base + eint->regs->mask_set;
unsigned int i;

for (i = 0; i < eint->hw->ap_num; i += 32) {
- writel(0xffffffff, reg);
- reg += 4;
+ writel(0xffffffff, dom_en);
+ writel(0xffffffff, mask_set);
+ dom_en += 4;
+ mask_set += 4;
}

return 0;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 8e95a75a4559..80a9e50392a0 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -205,7 +205,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
if (inode && fuse_is_bad(inode))
goto invalid;
else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
- (flags & LOOKUP_REVAL)) {
+ (flags & (LOOKUP_EXCL | LOOKUP_REVAL))) {
struct fuse_entry_out outarg;
FUSE_ARGS(args);
struct fuse_forget_link *forget;
diff --git a/fs/io_uring.c b/fs/io_uring.c
index c5c22b067cd8..84758e512a04 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -936,7 +936,7 @@ static const struct io_op_def io_op_defs[] = {
.needs_file = 1,
.hash_reg_file = 1,
.unbound_nonreg_file = 1,
- .work_flags = IO_WQ_WORK_BLKCG,
+ .work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_FILES,
},
[IORING_OP_PROVIDE_BUFFERS] = {},
[IORING_OP_REMOVE_BUFFERS] = {},
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index a4ae1fcd2ab1..b09ead06a249 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -570,6 +570,7 @@ __be32 nfsd4_clone_file_range(struct nfsd_file *nf_src, u64 src_pos,
ssize_t nfsd_copy_file_range(struct file *src, u64 src_pos, struct file *dst,
u64 dst_pos, u64 count)
{
+ ssize_t ret;

/*
* Limit copy to 4MB to prevent indefinitely blocking an nfsd
@@ -580,7 +581,12 @@ ssize_t nfsd_copy_file_range(struct file *src, u64 src_pos, struct file *dst,
* limit like this and pipeline multiple COPY requests.
*/
count = min_t(u64, count, 1 << 22);
- return vfs_copy_file_range(src, src_pos, dst, dst_pos, count, 0);
+ ret = vfs_copy_file_range(src, src_pos, dst, dst_pos, count, 0);
+
+ if (ret == -EOPNOTSUPP || ret == -EXDEV)
+ ret = vfs_copy_file_range(src, src_pos, dst, dst_pos, count,
+ COPY_FILE_SPLICE);
+ return ret;
}

__be32 nfsd4_vfs_fallocate(struct svc_rqst *rqstp, struct svc_fh *fhp,
diff --git a/fs/read_write.c b/fs/read_write.c
index 75f764b43418..0066acb6b380 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1388,28 +1388,6 @@ ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
}
EXPORT_SYMBOL(generic_copy_file_range);

-static ssize_t do_copy_file_range(struct file *file_in, loff_t pos_in,
- struct file *file_out, loff_t pos_out,
- size_t len, unsigned int flags)
-{
- /*
- * Although we now allow filesystems to handle cross sb copy, passing
- * a file of the wrong filesystem type to filesystem driver can result
- * in an attempt to dereference the wrong type of ->private_data, so
- * avoid doing that until we really have a good reason. NFS defines
- * several different file_system_type structures, but they all end up
- * using the same ->copy_file_range() function pointer.
- */
- if (file_out->f_op->copy_file_range &&
- file_out->f_op->copy_file_range == file_in->f_op->copy_file_range)
- return file_out->f_op->copy_file_range(file_in, pos_in,
- file_out, pos_out,
- len, flags);
-
- return generic_copy_file_range(file_in, pos_in, file_out, pos_out, len,
- flags);
-}
-
/*
* Performs necessary checks before doing a file copy
*
@@ -1431,6 +1409,26 @@ static int generic_copy_file_checks(struct file *file_in, loff_t pos_in,
if (ret)
return ret;

+ /*
+ * We allow some filesystems to handle cross sb copy, but passing
+ * a file of the wrong filesystem type to filesystem driver can result
+ * in an attempt to dereference the wrong type of ->private_data, so
+ * avoid doing that until we really have a good reason.
+ *
+ * nfs and cifs define several different file_system_type structures
+ * and several different sets of file_operations, but they all end up
+ * using the same ->copy_file_range() function pointer.
+ */
+ if (flags & COPY_FILE_SPLICE) {
+ /* cross sb splice is allowed */
+ } else if (file_out->f_op->copy_file_range) {
+ if (file_in->f_op->copy_file_range !=
+ file_out->f_op->copy_file_range)
+ return -EXDEV;
+ } else if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb) {
+ return -EXDEV;
+ }
+
/* Don't touch certain kinds of inodes */
if (IS_IMMUTABLE(inode_out))
return -EPERM;
@@ -1473,8 +1471,9 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
size_t len, unsigned int flags)
{
ssize_t ret;
+ bool splice = flags & COPY_FILE_SPLICE;

- if (flags != 0)
+ if (flags & ~COPY_FILE_SPLICE)
return -EINVAL;

ret = generic_copy_file_checks(file_in, pos_in, file_out, pos_out, &len,
@@ -1496,26 +1495,43 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
file_start_write(file_out);

/*
- * Try cloning first, this is supported by more file systems, and
- * more efficient if both clone and copy are supported (e.g. NFS).
+ * Cloning is supported by more file systems, so we implement copy on
+ * same sb using clone, but for filesystems where both clone and copy
+ * are supported (e.g. nfs,cifs), we only call the copy method.
*/
- if (file_in->f_op->remap_file_range &&
- file_inode(file_in)->i_sb == file_inode(file_out)->i_sb) {
- loff_t cloned;
+ if (!splice && file_out->f_op->copy_file_range) {
+ ret = file_out->f_op->copy_file_range(file_in, pos_in,
+ file_out, pos_out,
+ len, flags);
+ goto done;
+ }

- cloned = file_in->f_op->remap_file_range(file_in, pos_in,
+ if (!splice && file_in->f_op->remap_file_range &&
+ file_inode(file_in)->i_sb == file_inode(file_out)->i_sb) {
+ ret = file_in->f_op->remap_file_range(file_in, pos_in,
file_out, pos_out,
min_t(loff_t, MAX_RW_COUNT, len),
REMAP_FILE_CAN_SHORTEN);
- if (cloned > 0) {
- ret = cloned;
+ if (ret > 0)
goto done;
- }
}

- ret = do_copy_file_range(file_in, pos_in, file_out, pos_out, len,
- flags);
- WARN_ON_ONCE(ret == -EOPNOTSUPP);
+ /*
+ * We can get here for same sb copy of filesystems that do not implement
+ * ->copy_file_range() in case filesystem does not support clone or in
+ * case filesystem supports clone but rejected the clone request (e.g.
+ * because it was not block aligned).
+ *
+ * In both cases, fall back to kernel copy so we are able to maintain a
+ * consistent story about which filesystems support copy_file_range()
+ * and which filesystems do not, that will allow userspace tools to
+ * make consistent desicions w.r.t using copy_file_range().
+ *
+ * We also get here if caller (e.g. nfsd) requested COPY_FILE_SPLICE.
+ */
+ ret = generic_copy_file_range(file_in, pos_in, file_out, pos_out, len,
+ flags);
+
done:
if (ret > 0) {
fsnotify_access(file_in);
@@ -1566,6 +1582,10 @@ SYSCALL_DEFINE6(copy_file_range, int, fd_in, loff_t __user *, off_in,
pos_out = f_out.file->f_pos;
}

+ ret = -EINVAL;
+ if (flags != 0)
+ goto out;
+
ret = vfs_copy_file_range(f_in.file, pos_in, f_out.file, pos_out, len,
flags);
if (ret > 0) {
diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h
index 5755ae5a4712..6a869682c120 100644
--- a/include/linux/can/platform/sja1000.h
+++ b/include/linux/can/platform/sja1000.h
@@ -14,7 +14,7 @@
#define OCR_MODE_TEST 0x01
#define OCR_MODE_NORMAL 0x02
#define OCR_MODE_CLOCK 0x03
-#define OCR_MODE_MASK 0x07
+#define OCR_MODE_MASK 0x03
#define OCR_TX0_INVERT 0x04
#define OCR_TX0_PULLDOWN 0x08
#define OCR_TX0_PULLUP 0x10
diff --git a/include/linux/fs.h b/include/linux/fs.h
index df54acdd3554..ebfc0b2b4969 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1817,6 +1817,14 @@ struct dir_context {
*/
#define REMAP_FILE_ADVISORY (REMAP_FILE_CAN_SHORTEN)

+/*
+ * These flags control the behavior of vfs_copy_file_range().
+ * They are not available to the user via syscall.
+ *
+ * COPY_FILE_SPLICE: call splice direct instead of fs clone/copy ops
+ */
+#define COPY_FILE_SPLICE (1 << 0)
+
struct iov_iter;

struct file_operations {
diff --git a/sound/soc/codecs/cs42l51.c b/sound/soc/codecs/cs42l51.c
index fc6a2bc311b4..c61b17dc2af8 100644
--- a/sound/soc/codecs/cs42l51.c
+++ b/sound/soc/codecs/cs42l51.c
@@ -146,7 +146,7 @@ static const struct snd_kcontrol_new cs42l51_snd_controls[] = {
0, 0xA0, 96, adc_att_tlv),
SOC_DOUBLE_R_SX_TLV("PGA Volume",
CS42L51_ALC_PGA_CTL, CS42L51_ALC_PGB_CTL,
- 0, 0x19, 30, pga_tlv),
+ 0, 0x1A, 30, pga_tlv),
SOC_SINGLE("Playback Deemphasis Switch", CS42L51_DAC_CTL, 3, 1, 0),
SOC_SINGLE("Auto-Mute Switch", CS42L51_DAC_CTL, 2, 1, 0),
SOC_SINGLE("Soft Ramp Switch", CS42L51_DAC_CTL, 1, 1, 0),
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
index efc5daf53bba..6c794605e33c 100644
--- a/sound/soc/fsl/fsl_micfil.c
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -190,6 +190,25 @@ static int fsl_micfil_reset(struct device *dev)
return ret;
}

+ /*
+ * SRES is self-cleared bit, but REG_MICFIL_CTRL1 is defined
+ * as non-volatile register, so SRES still remain in regmap
+ * cache after set, that every update of REG_MICFIL_CTRL1,
+ * software reset happens. so clear it explicitly.
+ */
+ ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1,
+ MICFIL_CTRL1_SRES);
+ if (ret)
+ return ret;
+
+ /*
+ * Set SRES should clear CHnF flags, But even add delay here
+ * the CHnF may not be cleared sometimes, so clear CHnF explicitly.
+ */
+ ret = regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, 0xFF, 0xFF);
+ if (ret)
+ return ret;
+
return 0;
}

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 5fdd96e77ef3..daecd386d5ec 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -445,8 +445,15 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
return err;

if (snd_soc_volsw_is_stereo(mc)) {
+ val2 = ucontrol->value.integer.value[1];
+
+ if (mc->platform_max && val2 > mc->platform_max)
+ return -EINVAL;
+ if (val2 > max)
+ return -EINVAL;
+
val_mask = mask << rshift;
- val2 = (ucontrol->value.integer.value[1] + min) & mask;
+ val2 = (val2 + min) & mask;
val2 = val2 << rshift;

err = snd_soc_component_update_bits(component, reg2, val_mask,
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c
index d38284a3aaf0..13393f0eab25 100644
--- a/tools/lib/bpf/libbpf_probes.c
+++ b/tools/lib/bpf/libbpf_probes.c
@@ -244,7 +244,7 @@ bool bpf_probe_map_type(enum bpf_map_type map_type, __u32 ifindex)
case BPF_MAP_TYPE_RINGBUF:
key_size = 0;
value_size = 0;
- max_entries = 4096;
+ max_entries = sysconf(_SC_PAGE_SIZE);
break;
case BPF_MAP_TYPE_UNSPEC:
case BPF_MAP_TYPE_HASH:
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