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SubjectRe: Linux 5.1.8
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 20f92c16ffbf..26b3a3e7daf6 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -177,6 +177,15 @@ cgroup v2 currently supports the following mount options.
ignored on non-init namespace mounts. Please refer to the
Delegation section for details.

+ memory_localevents
+
+ Only populate memory.events with data for the current cgroup,
+ and not any subtrees. This is legacy behaviour, the default
+ behaviour without this option is to include subtree counts.
+ This option is system wide and can only be set on mount or
+ modified through remount from the init namespace. The mount
+ option is ignored on non-init namespace mounts.
+

Organizing Processes and Threads
--------------------------------
diff --git a/Documentation/conf.py b/Documentation/conf.py
index 72647a38b5c2..7ace3f8852bd 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -37,7 +37,7 @@ needs_sphinx = '1.3'
extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain', 'kfigure', 'sphinx.ext.ifconfig']

# The name of the math extension changed on Sphinx 1.4
-if major == 1 and minor > 3:
+if (major == 1 and minor > 3) or (major > 1):
extensions.append("sphinx.ext.imgmath")
else:
extensions.append("sphinx.ext.pngmath")
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 9d0a7f08f93b..1159405cb920 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -37,7 +37,19 @@ import glob
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
from docutils.parsers.rst import directives, Directive
-from sphinx.ext.autodoc import AutodocReporter
+
+#
+# AutodocReporter is only good up to Sphinx 1.7
+#
+import sphinx
+
+Use_SSI = sphinx.__version__[:3] >= '1.7'
+if Use_SSI:
+ from sphinx.util.docutils import switch_source_input
+else:
+ from sphinx.ext.autodoc import AutodocReporter
+
+import kernellog

__version__ = '1.0'

@@ -90,7 +102,8 @@ class KernelDocDirective(Directive):
cmd += [filename]

try:
- env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
+ kernellog.verbose(env.app,
+ 'calling kernel-doc \'%s\'' % (" ".join(cmd)))

p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
@@ -100,7 +113,8 @@ class KernelDocDirective(Directive):
if p.returncode != 0:
sys.stderr.write(err)

- env.app.warn('kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
+ kernellog.warn(env.app,
+ 'kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
elif env.config.kerneldoc_verbosity > 0:
sys.stderr.write(err)
@@ -121,20 +135,28 @@ class KernelDocDirective(Directive):
lineoffset += 1

node = nodes.section()
- buf = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
+ self.do_parse(result, node)
+
+ return node.children
+
+ except Exception as e: # pylint: disable=W0703
+ kernellog.warn(env.app, 'kernel-doc \'%s\' processing failed with: %s' %
+ (" ".join(cmd), str(e)))
+ return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
+
+ def do_parse(self, result, node):
+ if Use_SSI:
+ with switch_source_input(self.state, result):
+ self.state.nested_parse(result, 0, node, match_titles=1)
+ else:
+ save = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
self.state.memo.title_styles, self.state.memo.section_level = [], 0
try:
self.state.nested_parse(result, 0, node, match_titles=1)
finally:
- self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
+ self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = save

- return node.children
-
- except Exception as e: # pylint: disable=W0703
- env.app.warn('kernel-doc \'%s\' processing failed with: %s' %
- (" ".join(cmd), str(e)))
- return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]

def setup(app):
app.add_config_value('kerneldoc_bin', None, 'env')
diff --git a/Documentation/sphinx/kernellog.py b/Documentation/sphinx/kernellog.py
new file mode 100644
index 000000000000..af924f51a7dc
--- /dev/null
+++ b/Documentation/sphinx/kernellog.py
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Sphinx has deprecated its older logging interface, but the replacement
+# only goes back to 1.6. So here's a wrapper layer to keep around for
+# as long as we support 1.4.
+#
+import sphinx
+
+if sphinx.__version__[:3] >= '1.6':
+ UseLogging = True
+ from sphinx.util import logging
+ logger = logging.getLogger('kerneldoc')
+else:
+ UseLogging = False
+
+def warn(app, message):
+ if UseLogging:
+ logger.warning(message)
+ else:
+ app.warn(message)
+
+def verbose(app, message):
+ if UseLogging:
+ logger.verbose(message)
+ else:
+ app.verbose(message)
+
+
diff --git a/Documentation/sphinx/kfigure.py b/Documentation/sphinx/kfigure.py
index b97228d2cc0e..fbfe6693bb60 100644
--- a/Documentation/sphinx/kfigure.py
+++ b/Documentation/sphinx/kfigure.py
@@ -60,6 +60,8 @@ import sphinx
from sphinx.util.nodes import clean_astext
from six import iteritems

+import kernellog
+
PY3 = sys.version_info[0] == 3

if PY3:
@@ -171,20 +173,20 @@ def setupTools(app):
This function is called once, when the builder is initiated.
"""
global dot_cmd, convert_cmd # pylint: disable=W0603
- app.verbose("kfigure: check installed tools ...")
+ kernellog.verbose(app, "kfigure: check installed tools ...")

dot_cmd = which('dot')
convert_cmd = which('convert')

if dot_cmd:
- app.verbose("use dot(1) from: " + dot_cmd)
+ kernellog.verbose(app, "use dot(1) from: " + dot_cmd)
else:
- app.warn("dot(1) not found, for better output quality install "
- "graphviz from http://www.graphviz.org")
+ kernellog.warn(app, "dot(1) not found, for better output quality install "
+ "graphviz from http://www.graphviz.org")
if convert_cmd:
- app.verbose("use convert(1) from: " + convert_cmd)
+ kernellog.verbose(app, "use convert(1) from: " + convert_cmd)
else:
- app.warn(
+ kernellog.warn(app,
"convert(1) not found, for SVG to PDF conversion install "
"ImageMagick (https://www.imagemagick.org)")

@@ -220,12 +222,13 @@ def convert_image(img_node, translator, src_fname=None):

# in kernel builds, use 'make SPHINXOPTS=-v' to see verbose messages

- app.verbose('assert best format for: ' + img_node['uri'])
+ kernellog.verbose(app, 'assert best format for: ' + img_node['uri'])

if in_ext == '.dot':

if not dot_cmd:
- app.verbose("dot from graphviz not available / include DOT raw.")
+ kernellog.verbose(app,
+ "dot from graphviz not available / include DOT raw.")
img_node.replace_self(file2literal(src_fname))

elif translator.builder.format == 'latex':
@@ -252,7 +255,8 @@ def convert_image(img_node, translator, src_fname=None):

if translator.builder.format == 'latex':
if convert_cmd is None:
- app.verbose("no SVG to PDF conversion available / include SVG raw.")
+ kernellog.verbose(app,
+ "no SVG to PDF conversion available / include SVG raw.")
img_node.replace_self(file2literal(src_fname))
else:
dst_fname = path.join(translator.builder.outdir, fname + '.pdf')
@@ -265,18 +269,19 @@ def convert_image(img_node, translator, src_fname=None):
_name = dst_fname[len(translator.builder.outdir) + 1:]

if isNewer(dst_fname, src_fname):
- app.verbose("convert: {out}/%s already exists and is newer" % _name)
+ kernellog.verbose(app,
+ "convert: {out}/%s already exists and is newer" % _name)

else:
ok = False
mkdir(path.dirname(dst_fname))

if in_ext == '.dot':
- app.verbose('convert DOT to: {out}/' + _name)
+ kernellog.verbose(app, 'convert DOT to: {out}/' + _name)
ok = dot2format(app, src_fname, dst_fname)

elif in_ext == '.svg':
- app.verbose('convert SVG to: {out}/' + _name)
+ kernellog.verbose(app, 'convert SVG to: {out}/' + _name)
ok = svg2pdf(app, src_fname, dst_fname)

if not ok:
@@ -305,7 +310,8 @@ def dot2format(app, dot_fname, out_fname):
with open(out_fname, "w") as out:
exit_code = subprocess.call(cmd, stdout = out)
if exit_code != 0:
- app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
+ kernellog.warn(app,
+ "Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
return bool(exit_code == 0)

def svg2pdf(app, svg_fname, pdf_fname):
@@ -322,7 +328,7 @@ def svg2pdf(app, svg_fname, pdf_fname):
# use stdout and stderr from parent
exit_code = subprocess.call(cmd)
if exit_code != 0:
- app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
+ kernellog.warn(app, "Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
return bool(exit_code == 0)


@@ -415,15 +421,15 @@ def visit_kernel_render(self, node):
app = self.builder.app
srclang = node.get('srclang')

- app.verbose('visit kernel-render node lang: "%s"' % (srclang))
+ kernellog.verbose(app, 'visit kernel-render node lang: "%s"' % (srclang))

tmp_ext = RENDER_MARKUP_EXT.get(srclang, None)
if tmp_ext is None:
- app.warn('kernel-render: "%s" unknown / include raw.' % (srclang))
+ kernellog.warn(app, 'kernel-render: "%s" unknown / include raw.' % (srclang))
return

if not dot_cmd and tmp_ext == '.dot':
- app.verbose("dot from graphviz not available / include raw.")
+ kernellog.verbose(app, "dot from graphviz not available / include raw.")
return

literal_block = node[0]
diff --git a/Makefile b/Makefile
index 299578ce385a..3027a0ce7a02 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 1
-SUBLEVEL = 7
+SUBLEVEL = 8
EXTRAVERSION =
NAME = Shy Crocodile

diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
index 6f91e8116514..162a95ed0881 100644
--- a/arch/arm64/kernel/sys.c
+++ b/arch/arm64/kernel/sys.c
@@ -50,7 +50,7 @@ SYSCALL_DEFINE1(arm64_personality, unsigned int, personality)
/*
* Wrappers to pass the pt_regs argument.
*/
-#define sys_personality sys_arm64_personality
+#define __arm64_sys_personality __arm64_sys_arm64_personality

asmlinkage long sys_ni_syscall(const struct pt_regs *);
#define __arm64_sys_ni_syscall sys_ni_syscall
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 29755989f616..3102685a6cd7 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -256,7 +256,10 @@ void arm64_force_sig_fault(int signo, int code, void __user *addr,
const char *str)
{
arm64_show_signal(signo, str);
- force_sig_fault(signo, code, addr, current);
+ if (signo == SIGKILL)
+ force_sig(SIGKILL, current);
+ else
+ force_sig_fault(signo, code, addr, current);
}

void arm64_force_sig_mceerr(int code, void __user *addr, short lsb,
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 6d0517ac18e5..0369f26ab96d 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -1122,6 +1122,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
+ case KVM_CAP_MAX_VCPU_ID:
+ r = KVM_MAX_VCPU_ID;
+ break;
case KVM_CAP_MIPS_FPU:
/* We don't handle systems with inconsistent cpu_has_fpu */
r = !!raw_cpu_has_fpu;
diff --git a/arch/powerpc/kernel/kexec_elf_64.c b/arch/powerpc/kernel/kexec_elf_64.c
index ba4f18a43ee8..52a29fc73730 100644
--- a/arch/powerpc/kernel/kexec_elf_64.c
+++ b/arch/powerpc/kernel/kexec_elf_64.c
@@ -547,6 +547,7 @@ static int elf_exec_load(struct kimage *image, struct elfhdr *ehdr,
kbuf.memsz = phdr->p_memsz;
kbuf.buf_align = phdr->p_align;
kbuf.buf_min = phdr->p_paddr + base;
+ kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
ret = kexec_add_buffer(&kbuf);
if (ret)
goto out;
@@ -581,7 +582,8 @@ static void *elf64_load(struct kimage *image, char *kernel_buf,
struct kexec_buf kbuf = { .image = image, .buf_min = 0,
.buf_max = ppc64_rma_size };
struct kexec_buf pbuf = { .image = image, .buf_min = 0,
- .buf_max = ppc64_rma_size, .top_down = true };
+ .buf_max = ppc64_rma_size, .top_down = true,
+ .mem = KEXEC_BUF_MEM_UNKNOWN };

ret = build_elf_exec_info(kernel_buf, kernel_len, &ehdr, &elf_info);
if (ret)
@@ -606,6 +608,7 @@ static void *elf64_load(struct kimage *image, char *kernel_buf,
kbuf.bufsz = kbuf.memsz = initrd_len;
kbuf.buf_align = PAGE_SIZE;
kbuf.top_down = false;
+ kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
ret = kexec_add_buffer(&kbuf);
if (ret)
goto out;
@@ -638,6 +641,7 @@ static void *elf64_load(struct kimage *image, char *kernel_buf,
kbuf.bufsz = kbuf.memsz = fdt_size;
kbuf.buf_align = PAGE_SIZE;
kbuf.top_down = true;
+ kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
ret = kexec_add_buffer(&kbuf);
if (ret)
goto out;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index b2b29d4f9842..bd68b3e59de5 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3624,6 +3624,7 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit,
vc->in_guest = 0;

mtspr(SPRN_DEC, local_paca->kvm_hstate.dec_expires - mftb());
+ mtspr(SPRN_SPRG_VDSO_WRITE, local_paca->sprg_vdso);

kvmhv_load_host_pmu();

@@ -4048,16 +4049,20 @@ int kvmhv_run_single_vcpu(struct kvm_run *kvm_run,
if (cpu_has_feature(CPU_FTR_HVMODE))
kvmppc_radix_check_need_tlb_flush(kvm, pcpu, nested);

- trace_hardirqs_on();
guest_enter_irqoff();

srcu_idx = srcu_read_lock(&kvm->srcu);

this_cpu_disable_ftrace();

+ /* Tell lockdep that we're about to enable interrupts */
+ trace_hardirqs_on();
+
trap = kvmhv_p9_guest_entry(vcpu, time_limit, lpcr);
vcpu->arch.trap = trap;

+ trace_hardirqs_off();
+
this_cpu_enable_ftrace();

srcu_read_unlock(&kvm->srcu, srcu_idx);
@@ -4067,7 +4072,6 @@ int kvmhv_run_single_vcpu(struct kvm_run *kvm_run,
isync();
}

- trace_hardirqs_off();
set_irq_happened(trap);

kvmppc_set_host_core(pcpu);
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index f78d002f0fe0..1ad950af7b7b 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -1786,7 +1786,6 @@ static void kvmppc_xive_cleanup_irq(u32 hw_num, struct xive_irq_data *xd)
{
xive_vm_esb_load(xd, XIVE_ESB_SET_PQ_01);
xive_native_configure_irq(hw_num, 0, MASKED, 0);
- xive_cleanup_irq_data(xd);
}

static void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb)
@@ -1800,9 +1799,10 @@ static void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb)
continue;

kvmppc_xive_cleanup_irq(state->ipi_number, &state->ipi_data);
+ xive_cleanup_irq_data(&state->ipi_data);
xive_native_free_irq(state->ipi_number);

- /* Pass-through, cleanup too */
+ /* Pass-through, cleanup too but keep IRQ hw data */
if (state->pt_number)
kvmppc_xive_cleanup_irq(state->pt_number, state->pt_data);

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 8885377ec3e0..d2e800e27f03 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -650,6 +650,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
+ case KVM_CAP_MAX_VCPU_ID:
+ r = KVM_MAX_VCPU_ID;
+ break;
#ifdef CONFIG_PPC_BOOK3S_64
case KVM_CAP_PPC_GET_SMMU_INFO:
r = 1;
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index b0723002a396..8eb5dc5df62b 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1846,6 +1846,7 @@ static int power_pmu_event_init(struct perf_event *event)
int n;
int err;
struct cpu_hw_events *cpuhw;
+ u64 bhrb_filter;

if (!ppmu)
return -ENOENT;
@@ -1951,13 +1952,14 @@ static int power_pmu_event_init(struct perf_event *event)
err = power_check_constraints(cpuhw, events, cflags, n + 1);

if (has_branch_stack(event)) {
- cpuhw->bhrb_filter = ppmu->bhrb_filter_map(
+ bhrb_filter = ppmu->bhrb_filter_map(
event->attr.branch_sample_type);

- if (cpuhw->bhrb_filter == -1) {
+ if (bhrb_filter == -1) {
put_cpu_var(cpu_hw_events);
return -EOPNOTSUPP;
}
+ cpuhw->bhrb_filter = bhrb_filter;
}

put_cpu_var(cpu_hw_events);
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index d12a2db26353..d10feef93b6b 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -29,6 +29,7 @@ enum {
#define POWER8_MMCRA_IFM1 0x0000000040000000UL
#define POWER8_MMCRA_IFM2 0x0000000080000000UL
#define POWER8_MMCRA_IFM3 0x00000000C0000000UL
+#define POWER8_MMCRA_BHRB_MASK 0x00000000C0000000UL

/*
* Raw event encoding for PowerISA v2.07 (Power8):
@@ -243,6 +244,8 @@ static u64 power8_bhrb_filter_map(u64 branch_sample_type)

static void power8_config_bhrb(u64 pmu_bhrb_filter)
{
+ pmu_bhrb_filter &= POWER8_MMCRA_BHRB_MASK;
+
/* Enable BHRB filter in PMU */
mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter));
}
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 030544e35959..f3987915cadc 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -92,6 +92,7 @@ enum {
#define POWER9_MMCRA_IFM1 0x0000000040000000UL
#define POWER9_MMCRA_IFM2 0x0000000080000000UL
#define POWER9_MMCRA_IFM3 0x00000000C0000000UL
+#define POWER9_MMCRA_BHRB_MASK 0x00000000C0000000UL

/* Nasty Power9 specific hack */
#define PVR_POWER9_CUMULUS 0x00002000
@@ -300,6 +301,8 @@ static u64 power9_bhrb_filter_map(u64 branch_sample_type)

static void power9_config_bhrb(u64 pmu_bhrb_filter)
{
+ pmu_bhrb_filter &= POWER9_MMCRA_BHRB_MASK;
+
/* Enable BHRB filter in PMU */
mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter));
}
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index dd456725189f..d00f84add5f4 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -27,14 +27,14 @@
#include <linux/module.h>
#include <linux/cpufeature.h>
#include <linux/init.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/fips.h>
#include <linux/string.h>
#include <crypto/xts.h>
#include <asm/cpacf.h>

static u8 *ctrblk;
-static DEFINE_SPINLOCK(ctrblk_lock);
+static DEFINE_MUTEX(ctrblk_lock);

static cpacf_mask_t km_functions, kmc_functions, kmctr_functions,
kma_functions;
@@ -698,7 +698,7 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, unsigned long modifier,
unsigned int n, nbytes;
int ret, locked;

- locked = spin_trylock(&ctrblk_lock);
+ locked = mutex_trylock(&ctrblk_lock);

ret = blkcipher_walk_virt_block(desc, walk, AES_BLOCK_SIZE);
while ((nbytes = walk->nbytes) >= AES_BLOCK_SIZE) {
@@ -716,7 +716,7 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, unsigned long modifier,
ret = blkcipher_walk_done(desc, walk, nbytes - n);
}
if (locked)
- spin_unlock(&ctrblk_lock);
+ mutex_unlock(&ctrblk_lock);
/*
* final block may be < AES_BLOCK_SIZE, copy only nbytes
*/
@@ -826,19 +826,45 @@ static int gcm_aes_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
return 0;
}

-static void gcm_sg_walk_start(struct gcm_sg_walk *gw, struct scatterlist *sg,
- unsigned int len)
+static void gcm_walk_start(struct gcm_sg_walk *gw, struct scatterlist *sg,
+ unsigned int len)
{
memset(gw, 0, sizeof(*gw));
gw->walk_bytes_remain = len;
scatterwalk_start(&gw->walk, sg);
}

-static int gcm_sg_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
+static inline unsigned int _gcm_sg_clamp_and_map(struct gcm_sg_walk *gw)
+{
+ struct scatterlist *nextsg;
+
+ gw->walk_bytes = scatterwalk_clamp(&gw->walk, gw->walk_bytes_remain);
+ while (!gw->walk_bytes) {
+ nextsg = sg_next(gw->walk.sg);
+ if (!nextsg)
+ return 0;
+ scatterwalk_start(&gw->walk, nextsg);
+ gw->walk_bytes = scatterwalk_clamp(&gw->walk,
+ gw->walk_bytes_remain);
+ }
+ gw->walk_ptr = scatterwalk_map(&gw->walk);
+ return gw->walk_bytes;
+}
+
+static inline void _gcm_sg_unmap_and_advance(struct gcm_sg_walk *gw,
+ unsigned int nbytes)
+{
+ gw->walk_bytes_remain -= nbytes;
+ scatterwalk_unmap(&gw->walk);
+ scatterwalk_advance(&gw->walk, nbytes);
+ scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
+ gw->walk_ptr = NULL;
+}
+
+static int gcm_in_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
{
int n;

- /* minbytesneeded <= AES_BLOCK_SIZE */
if (gw->buf_bytes && gw->buf_bytes >= minbytesneeded) {
gw->ptr = gw->buf;
gw->nbytes = gw->buf_bytes;
@@ -851,13 +877,11 @@ static int gcm_sg_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
goto out;
}

- gw->walk_bytes = scatterwalk_clamp(&gw->walk, gw->walk_bytes_remain);
- if (!gw->walk_bytes) {
- scatterwalk_start(&gw->walk, sg_next(gw->walk.sg));
- gw->walk_bytes = scatterwalk_clamp(&gw->walk,
- gw->walk_bytes_remain);
+ if (!_gcm_sg_clamp_and_map(gw)) {
+ gw->ptr = NULL;
+ gw->nbytes = 0;
+ goto out;
}
- gw->walk_ptr = scatterwalk_map(&gw->walk);

if (!gw->buf_bytes && gw->walk_bytes >= minbytesneeded) {
gw->ptr = gw->walk_ptr;
@@ -869,51 +893,90 @@ static int gcm_sg_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
n = min(gw->walk_bytes, AES_BLOCK_SIZE - gw->buf_bytes);
memcpy(gw->buf + gw->buf_bytes, gw->walk_ptr, n);
gw->buf_bytes += n;
- gw->walk_bytes_remain -= n;
- scatterwalk_unmap(&gw->walk);
- scatterwalk_advance(&gw->walk, n);
- scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
-
+ _gcm_sg_unmap_and_advance(gw, n);
if (gw->buf_bytes >= minbytesneeded) {
gw->ptr = gw->buf;
gw->nbytes = gw->buf_bytes;
goto out;
}
-
- gw->walk_bytes = scatterwalk_clamp(&gw->walk,
- gw->walk_bytes_remain);
- if (!gw->walk_bytes) {
- scatterwalk_start(&gw->walk, sg_next(gw->walk.sg));
- gw->walk_bytes = scatterwalk_clamp(&gw->walk,
- gw->walk_bytes_remain);
+ if (!_gcm_sg_clamp_and_map(gw)) {
+ gw->ptr = NULL;
+ gw->nbytes = 0;
+ goto out;
}
- gw->walk_ptr = scatterwalk_map(&gw->walk);
}

out:
return gw->nbytes;
}

-static void gcm_sg_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+static int gcm_out_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
{
- int n;
+ if (gw->walk_bytes_remain == 0) {
+ gw->ptr = NULL;
+ gw->nbytes = 0;
+ goto out;
+ }

+ if (!_gcm_sg_clamp_and_map(gw)) {
+ gw->ptr = NULL;
+ gw->nbytes = 0;
+ goto out;
+ }
+
+ if (gw->walk_bytes >= minbytesneeded) {
+ gw->ptr = gw->walk_ptr;
+ gw->nbytes = gw->walk_bytes;
+ goto out;
+ }
+
+ scatterwalk_unmap(&gw->walk);
+ gw->walk_ptr = NULL;
+
+ gw->ptr = gw->buf;
+ gw->nbytes = sizeof(gw->buf);
+
+out:
+ return gw->nbytes;
+}
+
+static int gcm_in_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+{
if (gw->ptr == NULL)
- return;
+ return 0;

if (gw->ptr == gw->buf) {
- n = gw->buf_bytes - bytesdone;
+ int n = gw->buf_bytes - bytesdone;
if (n > 0) {
memmove(gw->buf, gw->buf + bytesdone, n);
- gw->buf_bytes -= n;
+ gw->buf_bytes = n;
} else
gw->buf_bytes = 0;
- } else {
- gw->walk_bytes_remain -= bytesdone;
- scatterwalk_unmap(&gw->walk);
- scatterwalk_advance(&gw->walk, bytesdone);
- scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
- }
+ } else
+ _gcm_sg_unmap_and_advance(gw, bytesdone);
+
+ return bytesdone;
+}
+
+static int gcm_out_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+{
+ int i, n;
+
+ if (gw->ptr == NULL)
+ return 0;
+
+ if (gw->ptr == gw->buf) {
+ for (i = 0; i < bytesdone; i += n) {
+ if (!_gcm_sg_clamp_and_map(gw))
+ return i;
+ n = min(gw->walk_bytes, bytesdone - i);
+ memcpy(gw->walk_ptr, gw->buf + i, n);
+ _gcm_sg_unmap_and_advance(gw, n);
+ }
+ } else
+ _gcm_sg_unmap_and_advance(gw, bytesdone);
+
+ return bytesdone;
}

static int gcm_aes_crypt(struct aead_request *req, unsigned int flags)
@@ -926,7 +989,7 @@ static int gcm_aes_crypt(struct aead_request *req, unsigned int flags)
unsigned int pclen = req->cryptlen;
int ret = 0;

- unsigned int len, in_bytes, out_bytes,
+ unsigned int n, len, in_bytes, out_bytes,
min_bytes, bytes, aad_bytes, pc_bytes;
struct gcm_sg_walk gw_in, gw_out;
u8 tag[GHASH_DIGEST_SIZE];
@@ -963,14 +1026,14 @@ static int gcm_aes_crypt(struct aead_request *req, unsigned int flags)
*(u32 *)(param.j0 + ivsize) = 1;
memcpy(param.k, ctx->key, ctx->key_len);

- gcm_sg_walk_start(&gw_in, req->src, len);
- gcm_sg_walk_start(&gw_out, req->dst, len);
+ gcm_walk_start(&gw_in, req->src, len);
+ gcm_walk_start(&gw_out, req->dst, len);

do {
min_bytes = min_t(unsigned int,
aadlen > 0 ? aadlen : pclen, AES_BLOCK_SIZE);
- in_bytes = gcm_sg_walk_go(&gw_in, min_bytes);
- out_bytes = gcm_sg_walk_go(&gw_out, min_bytes);
+ in_bytes = gcm_in_walk_go(&gw_in, min_bytes);
+ out_bytes = gcm_out_walk_go(&gw_out, min_bytes);
bytes = min(in_bytes, out_bytes);

if (aadlen + pclen <= bytes) {
@@ -997,8 +1060,11 @@ static int gcm_aes_crypt(struct aead_request *req, unsigned int flags)
gw_in.ptr + aad_bytes, pc_bytes,
gw_in.ptr, aad_bytes);

- gcm_sg_walk_done(&gw_in, aad_bytes + pc_bytes);
- gcm_sg_walk_done(&gw_out, aad_bytes + pc_bytes);
+ n = aad_bytes + pc_bytes;
+ if (gcm_in_walk_done(&gw_in, n) != n)
+ return -ENOMEM;
+ if (gcm_out_walk_done(&gw_out, n) != n)
+ return -ENOMEM;
aadlen -= aad_bytes;
pclen -= pc_bytes;
} while (aadlen + pclen > 0);
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index 0d15383d0ff1..d64531cc9623 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -14,6 +14,7 @@
#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/fips.h>
+#include <linux/mutex.h>
#include <crypto/algapi.h>
#include <crypto/des.h>
#include <asm/cpacf.h>
@@ -21,7 +22,7 @@
#define DES3_KEY_SIZE (3 * DES_KEY_SIZE)

static u8 *ctrblk;
-static DEFINE_SPINLOCK(ctrblk_lock);
+static DEFINE_MUTEX(ctrblk_lock);

static cpacf_mask_t km_functions, kmc_functions, kmctr_functions;

@@ -387,7 +388,7 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, unsigned long fc,
unsigned int n, nbytes;
int ret, locked;

- locked = spin_trylock(&ctrblk_lock);
+ locked = mutex_trylock(&ctrblk_lock);

ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
@@ -404,7 +405,7 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, unsigned long fc,
ret = blkcipher_walk_done(desc, walk, nbytes - n);
}
if (locked)
- spin_unlock(&ctrblk_lock);
+ mutex_unlock(&ctrblk_lock);
/* final block may be < DES_BLOCK_SIZE, copy only nbytes */
if (nbytes) {
cpacf_kmctr(fc, ctx->key, buf, walk->src.virt.addr,
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 4638303ba6a8..c4180ecfbb2a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -507,6 +507,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
break;
case KVM_CAP_NR_VCPUS:
case KVM_CAP_MAX_VCPUS:
+ case KVM_CAP_MAX_VCPU_ID:
r = KVM_S390_BSCA_CPU_SLOTS;
if (!kvm_s390_use_sca_entries())
r = KVM_MAX_VCPUS;
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S
index d245f89d1395..d220b6848746 100644
--- a/arch/sparc/mm/ultra.S
+++ b/arch/sparc/mm/ultra.S
@@ -587,7 +587,7 @@ xcall_flush_tlb_kernel_range: /* 44 insns */
sub %g7, %g1, %g3
srlx %g3, 18, %g2
brnz,pn %g2, 2f
- add %g2, 1, %g2
+ sethi %hi(PAGE_SIZE), %g2
sub %g3, %g2, %g3
or %g1, 0x20, %g1 ! Nucleus
1: stxa %g0, [%g1 + %g3] ASI_DMMU_DEMAP
@@ -751,7 +751,7 @@ __cheetah_xcall_flush_tlb_kernel_range: /* 44 insns */
sub %g7, %g1, %g3
srlx %g3, 18, %g2
brnz,pn %g2, 2f
- add %g2, 1, %g2
+ sethi %hi(PAGE_SIZE), %g2
sub %g3, %g2, %g3
or %g1, 0x20, %g1 ! Nucleus
1: stxa %g0, [%g1 + %g3] ASI_DMMU_DEMAP
diff --git a/arch/x86/kernel/ima_arch.c b/arch/x86/kernel/ima_arch.c
index e47cd9390ab4..2a2e87717bad 100644
--- a/arch/x86/kernel/ima_arch.c
+++ b/arch/x86/kernel/ima_arch.c
@@ -17,6 +17,11 @@ static enum efi_secureboot_mode get_sb_mode(void)

size = sizeof(secboot);

+ if (!efi_enabled(EFI_RUNTIME_SERVICES)) {
+ pr_info("ima: secureboot mode unknown, no efi\n");
+ return efi_secureboot_mode_unknown;
+ }
+
/* Get variable contents into buffer */
status = efi.get_variable(efi_SecureBoot_name, &efi_variable_guid,
NULL, &size, &secboot);
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index fed46ddb1eef..06058c44ab57 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -431,8 +431,20 @@ void *alloc_insn_page(void)
void *page;

page = module_alloc(PAGE_SIZE);
- if (page)
- set_memory_ro((unsigned long)page & PAGE_MASK, 1);
+ if (!page)
+ return NULL;
+
+ /*
+ * First make the page read-only, and only then make it executable to
+ * prevent it from being W+X in between.
+ */
+ set_memory_ro((unsigned long)page, 1);
+
+ /*
+ * TODO: Once additional kernel code protection mechanisms are set, ensure
+ * that the page was not maliciously altered and it is still zeroed.
+ */
+ set_memory_x((unsigned long)page, 1);

return page;
}
@@ -440,8 +452,12 @@ void *alloc_insn_page(void)
/* Recover page to RW mode before releasing it */
void free_insn_page(void *page)
{
- set_memory_nx((unsigned long)page & PAGE_MASK, 1);
- set_memory_rw((unsigned long)page & PAGE_MASK, 1);
+ /*
+ * First make the page non-executable, and only then make it writable to
+ * prevent it from being W+X in between.
+ */
+ set_memory_nx((unsigned long)page, 1);
+ set_memory_rw((unsigned long)page, 1);
module_memfree(page);
}

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 834659288ba9..a5127b2c195f 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -141,10 +141,10 @@ SECTIONS
*(.text.__x86.indirect_thunk)
__indirect_thunk_end = .;
#endif
- } :text = 0x9090

- /* End of text section */
- _etext = .;
+ /* End of text section */
+ _etext = .;
+ } :text = 0x9090

NOTES :text :note

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6b8575c547ee..efc8adf7ca0e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3090,6 +3090,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
+ case KVM_CAP_MAX_VCPU_ID:
+ r = KVM_MAX_VCPU_ID;
+ break;
case KVM_CAP_NR_MEMSLOTS:
r = KVM_USER_MEM_SLOTS;
break;
diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c
index 1ef8438e3d6d..122a81ab8e48 100644
--- a/drivers/clk/imx/clk-imx8mm.c
+++ b/drivers/clk/imx/clk-imx8mm.c
@@ -449,12 +449,12 @@ static int __init imx8mm_clocks_init(struct device_node *ccm_node)
clks[IMX8MM_AUDIO_PLL2_OUT] = imx_clk_gate("audio_pll2_out", "audio_pll2_bypass", base + 0x14, 13);
clks[IMX8MM_VIDEO_PLL1_OUT] = imx_clk_gate("video_pll1_out", "video_pll1_bypass", base + 0x28, 13);
clks[IMX8MM_DRAM_PLL_OUT] = imx_clk_gate("dram_pll_out", "dram_pll_bypass", base + 0x50, 13);
- clks[IMX8MM_GPU_PLL_OUT] = imx_clk_gate("gpu_pll_out", "gpu_pll_bypass", base + 0x64, 13);
- clks[IMX8MM_VPU_PLL_OUT] = imx_clk_gate("vpu_pll_out", "vpu_pll_bypass", base + 0x74, 13);
- clks[IMX8MM_ARM_PLL_OUT] = imx_clk_gate("arm_pll_out", "arm_pll_bypass", base + 0x84, 13);
- clks[IMX8MM_SYS_PLL1_OUT] = imx_clk_gate("sys_pll1_out", "sys_pll1_bypass", base + 0x94, 13);
- clks[IMX8MM_SYS_PLL2_OUT] = imx_clk_gate("sys_pll2_out", "sys_pll2_bypass", base + 0x104, 13);
- clks[IMX8MM_SYS_PLL3_OUT] = imx_clk_gate("sys_pll3_out", "sys_pll3_bypass", base + 0x114, 13);
+ clks[IMX8MM_GPU_PLL_OUT] = imx_clk_gate("gpu_pll_out", "gpu_pll_bypass", base + 0x64, 11);
+ clks[IMX8MM_VPU_PLL_OUT] = imx_clk_gate("vpu_pll_out", "vpu_pll_bypass", base + 0x74, 11);
+ clks[IMX8MM_ARM_PLL_OUT] = imx_clk_gate("arm_pll_out", "arm_pll_bypass", base + 0x84, 11);
+ clks[IMX8MM_SYS_PLL1_OUT] = imx_clk_gate("sys_pll1_out", "sys_pll1_bypass", base + 0x94, 11);
+ clks[IMX8MM_SYS_PLL2_OUT] = imx_clk_gate("sys_pll2_out", "sys_pll2_bypass", base + 0x104, 11);
+ clks[IMX8MM_SYS_PLL3_OUT] = imx_clk_gate("sys_pll3_out", "sys_pll3_bypass", base + 0x114, 11);

/* SYS PLL fixed output */
clks[IMX8MM_SYS_PLL1_40M] = imx_clk_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20);
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index 0aabd401d3ca..0ceda7c14915 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -512,8 +512,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc,
}

static int drm_atomic_plane_set_property(struct drm_plane *plane,
- struct drm_plane_state *state, struct drm_property *property,
- uint64_t val)
+ struct drm_plane_state *state, struct drm_file *file_priv,
+ struct drm_property *property, uint64_t val)
{
struct drm_device *dev = plane->dev;
struct drm_mode_config *config = &dev->mode_config;
@@ -521,7 +521,8 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane,
int ret;

if (property == config->prop_fb_id) {
- struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val);
+ struct drm_framebuffer *fb;
+ fb = drm_framebuffer_lookup(dev, file_priv, val);
drm_atomic_set_fb_for_plane(state, fb);
if (fb)
drm_framebuffer_put(fb);
@@ -537,7 +538,7 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane,
return -EINVAL;

} else if (property == config->prop_crtc_id) {
- struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val);
+ struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
return drm_atomic_set_crtc_for_plane(state, crtc);
} else if (property == config->prop_crtc_x) {
state->crtc_x = U642I64(val);
@@ -681,14 +682,14 @@ static int drm_atomic_set_writeback_fb_for_connector(
}

static int drm_atomic_connector_set_property(struct drm_connector *connector,
- struct drm_connector_state *state, struct drm_property *property,
- uint64_t val)
+ struct drm_connector_state *state, struct drm_file *file_priv,
+ struct drm_property *property, uint64_t val)
{
struct drm_device *dev = connector->dev;
struct drm_mode_config *config = &dev->mode_config;

if (property == config->prop_crtc_id) {
- struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val);
+ struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
return drm_atomic_set_crtc_for_connector(state, crtc);
} else if (property == config->dpms_property) {
/* setting DPMS property requires special handling, which
@@ -747,8 +748,10 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
}
state->content_protection = val;
} else if (property == config->writeback_fb_id_property) {
- struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val);
- int ret = drm_atomic_set_writeback_fb_for_connector(state, fb);
+ struct drm_framebuffer *fb;
+ int ret;
+ fb = drm_framebuffer_lookup(dev, file_priv, val);
+ ret = drm_atomic_set_writeback_fb_for_connector(state, fb);
if (fb)
drm_framebuffer_put(fb);
return ret;
@@ -943,6 +946,7 @@ int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state,
}

int drm_atomic_set_property(struct drm_atomic_state *state,
+ struct drm_file *file_priv,
struct drm_mode_object *obj,
struct drm_property *prop,
uint64_t prop_value)
@@ -965,7 +969,8 @@ int drm_atomic_set_property(struct drm_atomic_state *state,
}

ret = drm_atomic_connector_set_property(connector,
- connector_state, prop, prop_value);
+ connector_state, file_priv,
+ prop, prop_value);
break;
}
case DRM_MODE_OBJECT_CRTC: {
@@ -993,7 +998,8 @@ int drm_atomic_set_property(struct drm_atomic_state *state,
}

ret = drm_atomic_plane_set_property(plane,
- plane_state, prop, prop_value);
+ plane_state, file_priv,
+ prop, prop_value);
break;
}
default:
@@ -1365,8 +1371,8 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
goto out;
}

- ret = drm_atomic_set_property(state, obj, prop,
- prop_value);
+ ret = drm_atomic_set_property(state, file_priv,
+ obj, prop, prop_value);
if (ret) {
drm_mode_object_put(obj);
goto out;
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 7dabbaf033a1..790ba5941954 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -559,6 +559,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,

plane = crtc->primary;

+ /* allow disabling with the primary plane leased */
+ if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id))
+ return -EACCES;
+
mutex_lock(&crtc->dev->mode_config.mutex);
DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx,
DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 216f2a9ee3d4..0719a235d6cc 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -214,6 +214,7 @@ int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state,
struct drm_connector *connector,
int mode);
int drm_atomic_set_property(struct drm_atomic_state *state,
+ struct drm_file *file_priv,
struct drm_mode_object *obj,
struct drm_property *prop,
uint64_t prop_value);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index af2ab640cadb..4a5b2d2bc508 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -3317,8 +3317,6 @@ int drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp)
return ret;
}

- drm_client_add(&fb_helper->client);
-
if (!preferred_bpp)
preferred_bpp = dev->mode_config.preferred_depth;
if (!preferred_bpp)
@@ -3329,6 +3327,8 @@ int drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp)
if (ret)
DRM_DEV_DEBUG(dev->dev, "client hotplug ret=%d\n", ret);

+ drm_client_add(&fb_helper->client);
+
return 0;
}
EXPORT_SYMBOL(drm_fbdev_generic_setup);
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index cc26625b4b33..e01ceed09e67 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -186,13 +186,13 @@ void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)

cma_obj = to_drm_gem_cma_obj(gem_obj);

- if (cma_obj->vaddr) {
- dma_free_wc(gem_obj->dev->dev, cma_obj->base.size,
- cma_obj->vaddr, cma_obj->paddr);
- } else if (gem_obj->import_attach) {
+ if (gem_obj->import_attach) {
if (cma_obj->vaddr)
dma_buf_vunmap(gem_obj->import_attach->dmabuf, cma_obj->vaddr);
drm_prime_gem_destroy(gem_obj, cma_obj->sgt);
+ } else if (cma_obj->vaddr) {
+ dma_free_wc(gem_obj->dev->dev, cma_obj->base.size,
+ cma_obj->vaddr, cma_obj->paddr);
}

drm_gem_object_release(gem_obj);
diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
index 4a1c2023ccf0..1a346ae1599d 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -297,8 +297,9 @@ static int drm_mode_create_standard_properties(struct drm_device *dev)
return -ENOMEM;
dev->mode_config.prop_crtc_id = prop;

- prop = drm_property_create(dev, DRM_MODE_PROP_BLOB, "FB_DAMAGE_CLIPS",
- 0);
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
+ "FB_DAMAGE_CLIPS", 0);
if (!prop)
return -ENOMEM;
dev->mode_config.prop_fb_damage_clips = prop;
diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c
index a9005c1c2384..f32507e65b79 100644
--- a/drivers/gpu/drm/drm_mode_object.c
+++ b/drivers/gpu/drm/drm_mode_object.c
@@ -451,6 +451,7 @@ static int set_property_legacy(struct drm_mode_object *obj,
}

static int set_property_atomic(struct drm_mode_object *obj,
+ struct drm_file *file_priv,
struct drm_property *prop,
uint64_t prop_value)
{
@@ -477,7 +478,7 @@ static int set_property_atomic(struct drm_mode_object *obj,
obj_to_connector(obj),
prop_value);
} else {
- ret = drm_atomic_set_property(state, obj, prop, prop_value);
+ ret = drm_atomic_set_property(state, file_priv, obj, prop, prop_value);
if (ret)
goto out;
ret = drm_atomic_commit(state);
@@ -520,7 +521,7 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
goto out_unref;

if (drm_drv_uses_atomic_modeset(property->dev))
- ret = set_property_atomic(arg_obj, property, arg->value);
+ ret = set_property_atomic(arg_obj, file_priv, property, arg->value);
else
ret = set_property_legacy(arg_obj, property, arg->value);

diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 4cfb56893b7f..d6ad60ab0d38 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -960,6 +960,11 @@ static int drm_mode_cursor_common(struct drm_device *dev,
if (ret)
goto out;

+ if (!drm_lease_held(file_priv, crtc->cursor->base.id)) {
+ ret = -EACCES;
+ goto out;
+ }
+
ret = drm_mode_cursor_universal(crtc, req, file_priv, &ctx);
goto out;
}
@@ -1062,6 +1067,9 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,

plane = crtc->primary;

+ if (!drm_lease_held(file_priv, plane->base.id))
+ return -EACCES;
+
if (crtc->funcs->page_flip_target) {
u32 current_vblank;
int r;
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index d7a727a6e3d7..91edfe2498a6 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -605,7 +605,6 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch);
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba);
ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active);
- ipu_plane->next_buf = !active;
if (ipu_plane_separate_alpha(ipu_plane)) {
active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch);
ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active,
@@ -710,7 +709,6 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba);
ipu_idmac_lock_enable(ipu_plane->ipu_ch, num_bursts);
ipu_plane_enable(ipu_plane);
- ipu_plane->next_buf = -1;
}

static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
@@ -732,10 +730,15 @@ bool ipu_plane_atomic_update_pending(struct drm_plane *plane)

if (ipu_state->use_pre)
return ipu_prg_channel_configure_pending(ipu_plane->ipu_ch);
- else if (ipu_plane->next_buf >= 0)
- return ipu_idmac_get_current_buffer(ipu_plane->ipu_ch) !=
- ipu_plane->next_buf;

+ /*
+ * Pretend no update is pending in the non-PRE/PRG case. For this to
+ * happen, an atomic update would have to be deferred until after the
+ * start of the next frame and simultaneously interrupt latency would
+ * have to be high enough to let the atomic update finish and issue an
+ * event before the previous end of frame interrupt handler can be
+ * executed.
+ */
return false;
}
int ipu_planes_assign_pre(struct drm_device *dev,
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.h b/drivers/gpu/drm/imx/ipuv3-plane.h
index 15e85e15d35c..ffacbcdd2f98 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.h
+++ b/drivers/gpu/drm/imx/ipuv3-plane.h
@@ -27,7 +27,6 @@ struct ipu_plane {
int dp_flow;

bool disabling;
- int next_buf;
};

struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
index eef54e9b5d77..7957eafa5f0e 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
@@ -38,6 +38,7 @@ struct nvkm_i2c_bus {
struct mutex mutex;
struct list_head head;
struct i2c_adapter i2c;
+ u8 enabled;
};

int nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *);
@@ -57,6 +58,7 @@ struct nvkm_i2c_aux {
struct mutex mutex;
struct list_head head;
struct i2c_adapter i2c;
+ u8 enabled;

u32 intr;
};
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
index 4c1f547da463..b4e7404fe660 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
@@ -105,9 +105,15 @@ nvkm_i2c_aux_acquire(struct nvkm_i2c_aux *aux)
{
struct nvkm_i2c_pad *pad = aux->pad;
int ret;
+
AUX_TRACE(aux, "acquire");
mutex_lock(&aux->mutex);
- ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX);
+
+ if (aux->enabled)
+ ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX);
+ else
+ ret = -EIO;
+
if (ret)
mutex_unlock(&aux->mutex);
return ret;
@@ -145,6 +151,24 @@ nvkm_i2c_aux_del(struct nvkm_i2c_aux **paux)
}
}

+void
+nvkm_i2c_aux_init(struct nvkm_i2c_aux *aux)
+{
+ AUX_TRACE(aux, "init");
+ mutex_lock(&aux->mutex);
+ aux->enabled = true;
+ mutex_unlock(&aux->mutex);
+}
+
+void
+nvkm_i2c_aux_fini(struct nvkm_i2c_aux *aux)
+{
+ AUX_TRACE(aux, "fini");
+ mutex_lock(&aux->mutex);
+ aux->enabled = false;
+ mutex_unlock(&aux->mutex);
+}
+
int
nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *func,
struct nvkm_i2c_pad *pad, int id,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
index 7d56c4ba693c..08f6b2ee64ab 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
@@ -16,6 +16,8 @@ int nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
int nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
int id, struct nvkm_i2c_aux **);
void nvkm_i2c_aux_del(struct nvkm_i2c_aux **);
+void nvkm_i2c_aux_init(struct nvkm_i2c_aux *);
+void nvkm_i2c_aux_fini(struct nvkm_i2c_aux *);
int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type,
u32 addr, u8 *data, u8 *size);

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
index 4f197b15acf6..ecacb22834d7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
@@ -160,8 +160,18 @@ nvkm_i2c_fini(struct nvkm_subdev *subdev, bool suspend)
{
struct nvkm_i2c *i2c = nvkm_i2c(subdev);
struct nvkm_i2c_pad *pad;
+ struct nvkm_i2c_bus *bus;
+ struct nvkm_i2c_aux *aux;
u32 mask;

+ list_for_each_entry(aux, &i2c->aux, head) {
+ nvkm_i2c_aux_fini(aux);
+ }
+
+ list_for_each_entry(bus, &i2c->bus, head) {
+ nvkm_i2c_bus_fini(bus);
+ }
+
if ((mask = (1 << i2c->func->aux) - 1), i2c->func->aux_stat) {
i2c->func->aux_mask(i2c, NVKM_I2C_ANY, mask, 0);
i2c->func->aux_stat(i2c, &mask, &mask, &mask, &mask);
@@ -180,6 +190,7 @@ nvkm_i2c_init(struct nvkm_subdev *subdev)
struct nvkm_i2c *i2c = nvkm_i2c(subdev);
struct nvkm_i2c_bus *bus;
struct nvkm_i2c_pad *pad;
+ struct nvkm_i2c_aux *aux;

list_for_each_entry(pad, &i2c->pad, head) {
nvkm_i2c_pad_init(pad);
@@ -189,6 +200,10 @@ nvkm_i2c_init(struct nvkm_subdev *subdev)
nvkm_i2c_bus_init(bus);
}

+ list_for_each_entry(aux, &i2c->aux, head) {
+ nvkm_i2c_aux_init(aux);
+ }
+
return 0;
}

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c
index 807a2b67bd64..ed50cc3736b9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c
@@ -110,6 +110,19 @@ nvkm_i2c_bus_init(struct nvkm_i2c_bus *bus)
BUS_TRACE(bus, "init");
if (bus->func->init)
bus->func->init(bus);
+
+ mutex_lock(&bus->mutex);
+ bus->enabled = true;
+ mutex_unlock(&bus->mutex);
+}
+
+void
+nvkm_i2c_bus_fini(struct nvkm_i2c_bus *bus)
+{
+ BUS_TRACE(bus, "fini");
+ mutex_lock(&bus->mutex);
+ bus->enabled = false;
+ mutex_unlock(&bus->mutex);
}

void
@@ -126,9 +139,15 @@ nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *bus)
{
struct nvkm_i2c_pad *pad = bus->pad;
int ret;
+
BUS_TRACE(bus, "acquire");
mutex_lock(&bus->mutex);
- ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C);
+
+ if (bus->enabled)
+ ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C);
+ else
+ ret = -EIO;
+
if (ret)
mutex_unlock(&bus->mutex);
return ret;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
index bea0dd33961e..465464bba58b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
@@ -18,6 +18,7 @@ int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *,
int id, struct nvkm_i2c_bus **);
void nvkm_i2c_bus_del(struct nvkm_i2c_bus **);
void nvkm_i2c_bus_init(struct nvkm_i2c_bus *);
+void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *);

int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int);

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index d7fa17f12769..8ddb0c0e4bff 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -448,6 +448,14 @@ static int rockchip_drm_platform_remove(struct platform_device *pdev)
return 0;
}

+static void rockchip_drm_platform_shutdown(struct platform_device *pdev)
+{
+ struct drm_device *drm = platform_get_drvdata(pdev);
+
+ if (drm)
+ drm_atomic_helper_shutdown(drm);
+}
+
static const struct of_device_id rockchip_drm_dt_ids[] = {
{ .compatible = "rockchip,display-subsystem", },
{ /* sentinel */ },
@@ -457,6 +465,7 @@ MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids);
static struct platform_driver rockchip_drm_platform_driver = {
.probe = rockchip_drm_platform_probe,
.remove = rockchip_drm_platform_remove,
+ .shutdown = rockchip_drm_platform_shutdown,
.driver = {
.name = "rockchip-drm",
.of_match_table = rockchip_drm_dt_ids,
diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
index 66ea3a902e36..43643ad31730 100644
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
@@ -293,7 +293,8 @@ static int sun8i_hdmi_phy_config_h3(struct dw_hdmi *hdmi,
SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW |
SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(4);
ana_cfg3_init |= SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(9) |
- SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(13);
+ SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(13) |
+ SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(3);
}

regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG,
@@ -672,22 +673,13 @@ int sun8i_hdmi_phy_probe(struct sun8i_dw_hdmi *hdmi, struct device_node *node)
goto err_put_clk_pll0;
}
}
-
- ret = sun8i_phy_clk_create(phy, dev,
- phy->variant->has_second_pll);
- if (ret) {
- dev_err(dev, "Couldn't create the PHY clock\n");
- goto err_put_clk_pll1;
- }
-
- clk_prepare_enable(phy->clk_phy);
}

phy->rst_phy = of_reset_control_get_shared(node, "phy");
if (IS_ERR(phy->rst_phy)) {
dev_err(dev, "Could not get phy reset control\n");
ret = PTR_ERR(phy->rst_phy);
- goto err_disable_clk_phy;
+ goto err_put_clk_pll1;
}

ret = reset_control_deassert(phy->rst_phy);
@@ -708,18 +700,29 @@ int sun8i_hdmi_phy_probe(struct sun8i_dw_hdmi *hdmi, struct device_node *node)
goto err_disable_clk_bus;
}

+ if (phy->variant->has_phy_clk) {
+ ret = sun8i_phy_clk_create(phy, dev,
+ phy->variant->has_second_pll);
+ if (ret) {
+ dev_err(dev, "Couldn't create the PHY clock\n");
+ goto err_disable_clk_mod;
+ }
+
+ clk_prepare_enable(phy->clk_phy);
+ }
+
hdmi->phy = phy;

return 0;

+err_disable_clk_mod:
+ clk_disable_unprepare(phy->clk_mod);
err_disable_clk_bus:
clk_disable_unprepare(phy->clk_bus);
err_deassert_rst_phy:
reset_control_assert(phy->rst_phy);
err_put_rst_phy:
reset_control_put(phy->rst_phy);
-err_disable_clk_phy:
- clk_disable_unprepare(phy->clk_phy);
err_put_clk_pll1:
clk_put(phy->clk_pll1);
err_put_clk_pll0:
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 4f80100ff5f3..4cce11fd8836 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -204,7 +204,7 @@ static void tegra_bo_free(struct drm_device *drm, struct tegra_bo *bo)
{
if (bo->pages) {
dma_unmap_sg(drm->dev, bo->sgt->sgl, bo->sgt->nents,
- DMA_BIDIRECTIONAL);
+ DMA_FROM_DEVICE);
drm_gem_put_pages(&bo->gem, bo->pages, true, true);
sg_free_table(bo->sgt);
kfree(bo->sgt);
@@ -230,7 +230,7 @@ static int tegra_bo_get_pages(struct drm_device *drm, struct tegra_bo *bo)
}

err = dma_map_sg(drm->dev, bo->sgt->sgl, bo->sgt->nents,
- DMA_BIDIRECTIONAL);
+ DMA_FROM_DEVICE);
if (err == 0) {
err = -EFAULT;
goto free_sgt;
diff --git a/drivers/gpu/drm/vmwgfx/ttm_object.c b/drivers/gpu/drm/vmwgfx/ttm_object.c
index 36990b80e790..16077785ad47 100644
--- a/drivers/gpu/drm/vmwgfx/ttm_object.c
+++ b/drivers/gpu/drm/vmwgfx/ttm_object.c
@@ -174,7 +174,7 @@ int ttm_base_object_init(struct ttm_object_file *tfile,
kref_init(&base->refcount);
idr_preload(GFP_KERNEL);
spin_lock(&tdev->object_lock);
- ret = idr_alloc(&tdev->idr, base, 0, 0, GFP_NOWAIT);
+ ret = idr_alloc(&tdev->idr, base, 1, 0, GFP_NOWAIT);
spin_unlock(&tdev->object_lock);
idr_preload_end();
if (ret < 0)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 1bfa353d995c..9d2e1ce5c0a6 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1240,7 +1240,13 @@ static int vmw_master_set(struct drm_device *dev,
}

dev_priv->active_master = vmaster;
- drm_sysfs_hotplug_event(dev);
+
+ /*
+ * Inform a new master that the layout may have changed while
+ * it was gone.
+ */
+ if (!from_open)
+ drm_sysfs_hotplug_event(dev);

return 0;
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 88b8178d4687..c0231a817d3b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -2129,6 +2129,11 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
return 0;

if (cmd->body.shid != SVGA3D_INVALID_ID) {
+ /*
+ * This is the compat shader path - Per device guest-backed
+ * shaders, but user-space thinks it's per context host-
+ * backed shaders.
+ */
res = vmw_shader_lookup(vmw_context_res_man(ctx),
cmd->body.shid,
cmd->body.type);
@@ -2137,6 +2142,14 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
ret = vmw_execbuf_res_noctx_val_add(sw_context, res);
if (unlikely(ret != 0))
return ret;
+
+ ret = vmw_resource_relocation_add
+ (sw_context, res,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->body.shid),
+ vmw_res_rel_normal);
+ if (unlikely(ret != 0))
+ return ret;
}
}

diff --git a/drivers/i2c/busses/i2c-mlxcpld.c b/drivers/i2c/busses/i2c-mlxcpld.c
index 745ed43a22d6..2fd717d8dd30 100644
--- a/drivers/i2c/busses/i2c-mlxcpld.c
+++ b/drivers/i2c/busses/i2c-mlxcpld.c
@@ -503,6 +503,7 @@ static int mlxcpld_i2c_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);

priv->dev = &pdev->dev;
+ priv->base_addr = MLXPLAT_CPLD_LPC_I2C_BASE_ADDR;

/* Register with i2c layer */
mlxcpld_i2c_adapter.timeout = usecs_to_jiffies(MLXCPLD_I2C_XFER_TO);
@@ -518,7 +519,6 @@ static int mlxcpld_i2c_probe(struct platform_device *pdev)
mlxcpld_i2c_adapter.nr = pdev->id;
priv->adap = mlxcpld_i2c_adapter;
priv->adap.dev.parent = &pdev->dev;
- priv->base_addr = MLXPLAT_CPLD_LPC_I2C_BASE_ADDR;
i2c_set_adapdata(&priv->adap, priv);

err = i2c_add_numbered_adapter(&priv->adap);
diff --git a/drivers/i2c/busses/i2c-synquacer.c b/drivers/i2c/busses/i2c-synquacer.c
index f14d4b3fab44..f724c8e6b360 100644
--- a/drivers/i2c/busses/i2c-synquacer.c
+++ b/drivers/i2c/busses/i2c-synquacer.c
@@ -351,7 +351,7 @@ static int synquacer_i2c_doxfer(struct synquacer_i2c *i2c,
/* wait 2 clock periods to ensure the stop has been through the bus */
udelay(DIV_ROUND_UP(2 * 1000, i2c->speed_khz));

- return 0;
+ return ret;
}

static irqreturn_t synquacer_i2c_isr(int irq, void *dev_id)
diff --git a/drivers/iio/adc/npcm_adc.c b/drivers/iio/adc/npcm_adc.c
index 9e25bbec9c70..193b3b81de4d 100644
--- a/drivers/iio/adc/npcm_adc.c
+++ b/drivers/iio/adc/npcm_adc.c
@@ -149,7 +149,7 @@ static int npcm_adc_read_raw(struct iio_dev *indio_dev,
}
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- if (info->vref) {
+ if (!IS_ERR(info->vref)) {
vref_uv = regulator_get_voltage(info->vref);
*val = vref_uv / 1000;
} else {
diff --git a/drivers/iio/adc/ti-ads124s08.c b/drivers/iio/adc/ti-ads124s08.c
index 53f17e4f2f23..552c2be8d87a 100644
--- a/drivers/iio/adc/ti-ads124s08.c
+++ b/drivers/iio/adc/ti-ads124s08.c
@@ -202,7 +202,7 @@ static int ads124s_read(struct iio_dev *indio_dev, unsigned int chan)
};

priv->data[0] = ADS124S08_CMD_RDATA;
- memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data));
+ memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data) - 1);

ret = spi_sync_transfer(priv->spi, t, ARRAY_SIZE(t));
if (ret < 0)
diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c
index 8b4568edd5cb..7f16c77b99fb 100644
--- a/drivers/iio/adc/ti-ads8688.c
+++ b/drivers/iio/adc/ti-ads8688.c
@@ -397,7 +397,7 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p)
}

iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- pf->timestamp);
+ iio_get_time_ns(indio_dev));

iio_trigger_notify_done(indio_dev->trig);

diff --git a/drivers/iio/dac/ds4424.c b/drivers/iio/dac/ds4424.c
index 883a47562055..714a97f91319 100644
--- a/drivers/iio/dac/ds4424.c
+++ b/drivers/iio/dac/ds4424.c
@@ -166,7 +166,7 @@ static int ds4424_verify_chip(struct iio_dev *indio_dev)
{
int ret, val;

- ret = ds4424_get_value(indio_dev, &val, DS4424_DAC_ADDR(0));
+ ret = ds4424_get_value(indio_dev, &val, 0);
if (ret < 0)
dev_err(&indio_dev->dev,
"%s failed. ret: %d\n", __func__, ret);
diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index 4fc03ec8a4f1..e39f3f40dfdd 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -400,6 +400,7 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
struct smsusb_device_t *dev;
void *mdev;
int i, rc;
+ int align = 0;

/* create device object */
dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL);
@@ -411,6 +412,24 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
dev->udev = interface_to_usbdev(intf);
dev->state = SMSUSB_DISCONNECTED;

+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ struct usb_endpoint_descriptor *desc =
+ &intf->cur_altsetting->endpoint[i].desc;
+
+ if (desc->bEndpointAddress & USB_DIR_IN) {
+ dev->in_ep = desc->bEndpointAddress;
+ align = usb_endpoint_maxp(desc) - sizeof(struct sms_msg_hdr);
+ } else {
+ dev->out_ep = desc->bEndpointAddress;
+ }
+ }
+
+ pr_debug("in_ep = %02x, out_ep = %02x\n", dev->in_ep, dev->out_ep);
+ if (!dev->in_ep || !dev->out_ep || align < 0) { /* Missing endpoints? */
+ smsusb_term_device(intf);
+ return -ENODEV;
+ }
+
params.device_type = sms_get_board(board_id)->type;

switch (params.device_type) {
@@ -425,24 +444,12 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
/* fall-thru */
default:
dev->buffer_size = USB2_BUFFER_SIZE;
- dev->response_alignment =
- le16_to_cpu(dev->udev->ep_in[1]->desc.wMaxPacketSize) -
- sizeof(struct sms_msg_hdr);
+ dev->response_alignment = align;

params.flags |= SMS_DEVICE_FAMILY2;
break;
}

- for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
- if (intf->cur_altsetting->endpoint[i].desc. bEndpointAddress & USB_DIR_IN)
- dev->in_ep = intf->cur_altsetting->endpoint[i].desc.bEndpointAddress;
- else
- dev->out_ep = intf->cur_altsetting->endpoint[i].desc.bEndpointAddress;
- }
-
- pr_debug("in_ep = %02x, out_ep = %02x\n",
- dev->in_ep, dev->out_ep);
-
params.device = &dev->udev->dev;
params.usb_device = dev->udev;
params.buffer_size = dev->buffer_size;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
index 73d3c1a0a7c9..98b168736df0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
@@ -490,11 +490,18 @@ int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr)
return -ENOMEM;
}

-void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr)
+void brcmf_proto_bcdc_detach_pre_delif(struct brcmf_pub *drvr)
+{
+ struct brcmf_bcdc *bcdc = drvr->proto->pd;
+
+ brcmf_fws_detach_pre_delif(bcdc->fws);
+}
+
+void brcmf_proto_bcdc_detach_post_delif(struct brcmf_pub *drvr)
{
struct brcmf_bcdc *bcdc = drvr->proto->pd;

drvr->proto->pd = NULL;
- brcmf_fws_detach(bcdc->fws);
+ brcmf_fws_detach_post_delif(bcdc->fws);
kfree(bcdc);
}
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h
index 3b0e9eff21b5..4bc52240ccea 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h
@@ -18,14 +18,16 @@

#ifdef CONFIG_BRCMFMAC_PROTO_BCDC
int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr);
-void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr);
+void brcmf_proto_bcdc_detach_pre_delif(struct brcmf_pub *drvr);
+void brcmf_proto_bcdc_detach_post_delif(struct brcmf_pub *drvr);
void brcmf_proto_bcdc_txflowblock(struct device *dev, bool state);
void brcmf_proto_bcdc_txcomplete(struct device *dev, struct sk_buff *txp,
bool success);
struct brcmf_fws_info *drvr_to_fws(struct brcmf_pub *drvr);
#else
static inline int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr) { return 0; }
-static inline void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr) {}
+static void brcmf_proto_bcdc_detach_pre_delif(struct brcmf_pub *drvr) {};
+static inline void brcmf_proto_bcdc_detach_post_delif(struct brcmf_pub *drvr) {}
#endif

#endif /* BRCMFMAC_BCDC_H */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 24ed19ed116e..52da307087e1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1303,6 +1303,8 @@ void brcmf_detach(struct device *dev)

brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);

+ brcmf_proto_detach_pre_delif(drvr);
+
/* make sure primary interface removed last */
for (i = BRCMF_MAX_IFS-1; i > -1; i--)
brcmf_remove_interface(drvr->iflist[i], false);
@@ -1312,7 +1314,7 @@ void brcmf_detach(struct device *dev)

brcmf_bus_stop(drvr->bus_if);

- brcmf_proto_detach(drvr);
+ brcmf_proto_detach_post_delif(drvr);

bus_if->drvr = NULL;
wiphy_free(drvr->wiphy);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
index d48b8b2d946f..c22c49ae552e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
@@ -2443,17 +2443,25 @@ struct brcmf_fws_info *brcmf_fws_attach(struct brcmf_pub *drvr)
return fws;

fail:
- brcmf_fws_detach(fws);
+ brcmf_fws_detach_pre_delif(fws);
+ brcmf_fws_detach_post_delif(fws);
return ERR_PTR(rc);
}

-void brcmf_fws_detach(struct brcmf_fws_info *fws)
+void brcmf_fws_detach_pre_delif(struct brcmf_fws_info *fws)
{
if (!fws)
return;
-
- if (fws->fws_wq)
+ if (fws->fws_wq) {
destroy_workqueue(fws->fws_wq);
+ fws->fws_wq = NULL;
+ }
+}
+
+void brcmf_fws_detach_post_delif(struct brcmf_fws_info *fws)
+{
+ if (!fws)
+ return;

/* cleanup */
brcmf_fws_lock(fws);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
index 4e6835766d5d..749c06dcdc17 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
@@ -19,7 +19,8 @@
#define FWSIGNAL_H_

struct brcmf_fws_info *brcmf_fws_attach(struct brcmf_pub *drvr);
-void brcmf_fws_detach(struct brcmf_fws_info *fws);
+void brcmf_fws_detach_pre_delif(struct brcmf_fws_info *fws);
+void brcmf_fws_detach_post_delif(struct brcmf_fws_info *fws);
void brcmf_fws_debugfs_create(struct brcmf_pub *drvr);
bool brcmf_fws_queue_skbs(struct brcmf_fws_info *fws);
bool brcmf_fws_fc_active(struct brcmf_fws_info *fws);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c
index 024c643052bc..c7964ccdda69 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c
@@ -67,16 +67,22 @@ int brcmf_proto_attach(struct brcmf_pub *drvr)
return -ENOMEM;
}

-void brcmf_proto_detach(struct brcmf_pub *drvr)
+void brcmf_proto_detach_post_delif(struct brcmf_pub *drvr)
{
brcmf_dbg(TRACE, "Enter\n");

if (drvr->proto) {
if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC)
- brcmf_proto_bcdc_detach(drvr);
+ brcmf_proto_bcdc_detach_post_delif(drvr);
else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF)
brcmf_proto_msgbuf_detach(drvr);
kfree(drvr->proto);
drvr->proto = NULL;
}
}
+
+void brcmf_proto_detach_pre_delif(struct brcmf_pub *drvr)
+{
+ if (drvr->proto && drvr->bus_if->proto_type == BRCMF_PROTO_BCDC)
+ brcmf_proto_bcdc_detach_pre_delif(drvr);
+}
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h
index d3c3b9a815ad..72355aea9028 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h
@@ -54,7 +54,8 @@ struct brcmf_proto {


int brcmf_proto_attach(struct brcmf_pub *drvr);
-void brcmf_proto_detach(struct brcmf_pub *drvr);
+void brcmf_proto_detach_pre_delif(struct brcmf_pub *drvr);
+void brcmf_proto_detach_post_delif(struct brcmf_pub *drvr);

static inline int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws,
struct sk_buff *skb,
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index c6acca521ffe..31e8a7240fd7 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -167,6 +167,7 @@ extern const struct attribute_group *zfcp_port_attr_groups[];
extern struct mutex zfcp_sysfs_port_units_mutex;
extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
extern struct device_attribute *zfcp_sysfs_shost_attrs[];
+bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port);

/* zfcp_unit.c */
extern int zfcp_unit_add(struct zfcp_port *, u64);
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 221d0dfb8493..e9ded2befa0d 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -129,6 +129,15 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)

zfcp_sdev->erp_action.port = port;

+ mutex_lock(&zfcp_sysfs_port_units_mutex);
+ if (zfcp_sysfs_port_is_removing(port)) {
+ /* port is already gone */
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);
+ put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */
+ return -ENXIO;
+ }
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);
+
unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev));
if (unit)
put_device(&unit->dev);
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index b277be6f7611..af197e2b3e69 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -235,6 +235,53 @@ static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,

DEFINE_MUTEX(zfcp_sysfs_port_units_mutex);

+static void zfcp_sysfs_port_set_removing(struct zfcp_port *const port)
+{
+ lockdep_assert_held(&zfcp_sysfs_port_units_mutex);
+ atomic_set(&port->units, -1);
+}
+
+bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port)
+{
+ lockdep_assert_held(&zfcp_sysfs_port_units_mutex);
+ return atomic_read(&port->units) == -1;
+}
+
+static bool zfcp_sysfs_port_in_use(struct zfcp_port *const port)
+{
+ struct zfcp_adapter *const adapter = port->adapter;
+ unsigned long flags;
+ struct scsi_device *sdev;
+ bool in_use = true;
+
+ mutex_lock(&zfcp_sysfs_port_units_mutex);
+ if (atomic_read(&port->units) > 0)
+ goto unlock_port_units_mutex; /* zfcp_unit(s) under port */
+
+ spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, adapter->scsi_host) {
+ const struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev);
+
+ if (sdev->sdev_state == SDEV_DEL ||
+ sdev->sdev_state == SDEV_CANCEL)
+ continue;
+ if (zsdev->port != port)
+ continue;
+ /* alive scsi_device under port of interest */
+ goto unlock_host_lock;
+ }
+
+ /* port is about to be removed, so no more unit_add or slave_alloc */
+ zfcp_sysfs_port_set_removing(port);
+ in_use = false;
+
+unlock_host_lock:
+ spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
+unlock_port_units_mutex:
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);
+ return in_use;
+}
+
static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -257,15 +304,11 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
else
retval = 0;

- mutex_lock(&zfcp_sysfs_port_units_mutex);
- if (atomic_read(&port->units) > 0) {
+ if (zfcp_sysfs_port_in_use(port)) {
retval = -EBUSY;
- mutex_unlock(&zfcp_sysfs_port_units_mutex);
+ put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */
goto out;
}
- /* port is about to be removed, so no more unit_add */
- atomic_set(&port->units, -1);
- mutex_unlock(&zfcp_sysfs_port_units_mutex);

write_lock_irq(&adapter->port_list_lock);
list_del(&port->list);
diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c
index 1bf0a0984a09..e67bf7388cae 100644
--- a/drivers/s390/scsi/zfcp_unit.c
+++ b/drivers/s390/scsi/zfcp_unit.c
@@ -124,7 +124,7 @@ int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun)
int retval = 0;

mutex_lock(&zfcp_sysfs_port_units_mutex);
- if (atomic_read(&port->units) == -1) {
+ if (zfcp_sysfs_port_is_removing(port)) {
/* port is already gone */
retval = -ENODEV;
goto out;
@@ -168,8 +168,14 @@ int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun)
write_lock_irq(&port->unit_list_lock);
list_add_tail(&unit->list, &port->unit_list);
write_unlock_irq(&port->unit_list_lock);
+ /*
+ * lock order: shost->scan_mutex before zfcp_sysfs_port_units_mutex
+ * due to zfcp_unit_scsi_scan() => zfcp_scsi_slave_alloc()
+ */
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);

zfcp_unit_scsi_scan(unit);
+ return retval;

out:
mutex_unlock(&zfcp_sysfs_port_units_mutex);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
index eb1e5dcb0d52..a9cc01e8e6c5 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
@@ -398,9 +398,18 @@ create_pagelist(char __user *buf, size_t count, unsigned short type)
int dma_buffers;
dma_addr_t dma_addr;

+ if (count >= INT_MAX - PAGE_SIZE)
+ return NULL;
+
offset = ((unsigned int)(unsigned long)buf & (PAGE_SIZE - 1));
num_pages = DIV_ROUND_UP(count + offset, PAGE_SIZE);

+ if (num_pages > (SIZE_MAX - sizeof(struct pagelist) -
+ sizeof(struct vchiq_pagelist_info)) /
+ (sizeof(u32) + sizeof(pages[0]) +
+ sizeof(struct scatterlist)))
+ return NULL;
+
pagelist_size = sizeof(struct pagelist) +
(num_pages * sizeof(u32)) +
(num_pages * sizeof(pages[0]) +
diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index 6261881e9bcd..e359855ff2ad 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -3119,7 +3119,9 @@ static void hfa384x_usbin_callback(struct urb *urb)
break;
}

+ /* Save values from the RX URB before reposting overwrites it. */
urb_status = urb->status;
+ usbin = (union hfa384x_usbin *)urb->transfer_buffer;

if (action != ABORT) {
/* Repost the RX URB */
@@ -3136,7 +3138,6 @@ static void hfa384x_usbin_callback(struct urb *urb)
/* Note: the check of the sw_support field, the type field doesn't
* have bit 12 set like the docs suggest.
*/
- usbin = (union hfa384x_usbin *)urb->transfer_buffer;
type = le16_to_cpu(usbin->type);
if (HFA384x_USB_ISRXFRM(type)) {
if (action == HANDLE) {
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 450ba6d7996c..e5aebbf5f302 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -581,7 +581,7 @@ static int max310x_set_ref_clk(struct device *dev, struct max310x_port *s,
}

/* Configure clock source */
- clksrc = xtal ? MAX310X_CLKSRC_CRYST_BIT : MAX310X_CLKSRC_EXTCLK_BIT;
+ clksrc = MAX310X_CLKSRC_EXTCLK_BIT | (xtal ? MAX310X_CLKSRC_CRYST_BIT : 0);

/* Configure PLL */
if (pllcfg) {
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 109096033bb1..23833ad952ba 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -860,6 +860,7 @@ static void msm_handle_tx(struct uart_port *port)
struct circ_buf *xmit = &msm_port->uart.state->xmit;
struct msm_dma *dma = &msm_port->tx_dma;
unsigned int pio_count, dma_count, dma_min;
+ char buf[4] = { 0 };
void __iomem *tf;
int err = 0;

@@ -869,10 +870,12 @@ static void msm_handle_tx(struct uart_port *port)
else
tf = port->membase + UART_TF;

+ buf[0] = port->x_char;
+
if (msm_port->is_uartdm)
msm_reset_dm_count(port, 1);

- iowrite8_rep(tf, &port->x_char, 1);
+ iowrite32_rep(tf, buf, 1);
port->icount.tx++;
port->x_char = 0;
return;
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 3cd139752d3f..abc705716aa0 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1557,6 +1557,13 @@ static void sci_request_dma(struct uart_port *port)

dev_dbg(port->dev, "%s: port %d\n", __func__, port->line);

+ /*
+ * DMA on console may interfere with Kernel log messages which use
+ * plain putchar(). So, simply don't use it with a console.
+ */
+ if (uart_console(port))
+ return;
+
if (!port->dev->of_node)
return;

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 693b3b4176f5..9d8aaf9941f9 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1056,6 +1056,13 @@ static void visual_init(struct vc_data *vc, int num, int init)
vc->vc_screenbuf_size = vc->vc_rows * vc->vc_size_row;
}

+
+static void visual_deinit(struct vc_data *vc)
+{
+ vc->vc_sw->con_deinit(vc);
+ module_put(vc->vc_sw->owner);
+}
+
int vc_allocate(unsigned int currcons) /* return 0 on success */
{
struct vt_notifier_param param;
@@ -1103,6 +1110,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */

return 0;
err_free:
+ visual_deinit(vc);
kfree(vc);
vc_cons[currcons].d = NULL;
return -ENOMEM;
@@ -1331,9 +1339,8 @@ struct vc_data *vc_deallocate(unsigned int currcons)
param.vc = vc = vc_cons[currcons].d;
atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
vcs_remove_sysfs(currcons);
- vc->vc_sw->con_deinit(vc);
+ visual_deinit(vc);
put_pid(vc->vt_pid);
- module_put(vc->vc_sw->owner);
vc_uniscr_set(vc, NULL);
kfree(vc->vc_screenbuf);
vc_cons[currcons].d = NULL;
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 20ff036b4c22..9d6cb709ca7b 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -932,8 +932,8 @@ int usb_get_bos_descriptor(struct usb_device *dev)

/* Get BOS descriptor */
ret = usb_get_descriptor(dev, USB_DT_BOS, 0, bos, USB_DT_BOS_SIZE);
- if (ret < USB_DT_BOS_SIZE) {
- dev_err(ddev, "unable to get BOS descriptor\n");
+ if (ret < USB_DT_BOS_SIZE || bos->bLength < USB_DT_BOS_SIZE) {
+ dev_err(ddev, "unable to get BOS descriptor or descriptor too short\n");
if (ret >= 0)
ret = -ENOMSG;
kfree(bos);
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 8bc35d53408b..6082b008969b 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -209,6 +209,9 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Microsoft LifeCam-VX700 v2.0 */
{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },

+ /* Microsoft Surface Dock Ethernet (RTL8153 GigE) */
+ { USB_DEVICE(0x045e, 0x07c6), .driver_info = USB_QUIRK_NO_LPM },
+
/* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */
{ USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 9215a28dad40..765ef5f1ffb8 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -656,6 +656,7 @@ static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci,
struct device *dev = xhci_to_hcd(xhci)->self.controller;
struct xhci_segment *seg = td->bounce_seg;
struct urb *urb = td->urb;
+ size_t len;

if (!ring || !seg || !urb)
return;
@@ -666,11 +667,14 @@ static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci,
return;
}

- /* for in tranfers we need to copy the data from bounce to sg */
- sg_pcopy_from_buffer(urb->sg, urb->num_mapped_sgs, seg->bounce_buf,
- seg->bounce_len, seg->bounce_offs);
dma_unmap_single(dev, seg->bounce_dma, ring->bounce_buf_len,
DMA_FROM_DEVICE);
+ /* for in tranfers we need to copy the data from bounce to sg */
+ len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, seg->bounce_buf,
+ seg->bounce_len, seg->bounce_offs);
+ if (len != seg->bounce_len)
+ xhci_warn(xhci, "WARN Wrong bounce buffer read length: %zu != %d\n",
+ len, seg->bounce_len);
seg->bounce_len = 0;
seg->bounce_offs = 0;
}
@@ -3123,6 +3127,7 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct urb *urb, u32 enqd_len,
unsigned int unalign;
unsigned int max_pkt;
u32 new_buff_len;
+ size_t len;

max_pkt = usb_endpoint_maxp(&urb->ep->desc);
unalign = (enqd_len + *trb_buff_len) % max_pkt;
@@ -3153,8 +3158,12 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct urb *urb, u32 enqd_len,

/* create a max max_pkt sized bounce buffer pointed to by last trb */
if (usb_urb_dir_out(urb)) {
- sg_pcopy_to_buffer(urb->sg, urb->num_mapped_sgs,
+ len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs,
seg->bounce_buf, new_buff_len, enqd_len);
+ if (len != seg->bounce_len)
+ xhci_warn(xhci,
+ "WARN Wrong bounce buffer write length: %zu != %d\n",
+ len, seg->bounce_len);
seg->bounce_dma = dma_map_single(dev, seg->bounce_buf,
max_pkt, DMA_TO_DEVICE);
} else {
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 7fa58c99f126..448e3f812833 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -9,6 +9,7 @@
*/

#include <linux/pci.h>
+#include <linux/iopoll.h>
#include <linux/irq.h>
#include <linux/log2.h>
#include <linux/module.h>
@@ -52,7 +53,6 @@ static bool td_on_ring(struct xhci_td *td, struct xhci_ring *ring)
return false;
}

-/* TODO: copied from ehci-hcd.c - can this be refactored? */
/*
* xhci_handshake - spin reading hc until handshake completes or fails
* @ptr: address of hc register to be read
@@ -69,18 +69,16 @@ static bool td_on_ring(struct xhci_td *td, struct xhci_ring *ring)
int xhci_handshake(void __iomem *ptr, u32 mask, u32 done, int usec)
{
u32 result;
+ int ret;

- do {
- result = readl(ptr);
- if (result == ~(u32)0) /* card removed */
- return -ENODEV;
- result &= mask;
- if (result == done)
- return 0;
- udelay(1);
- usec--;
- } while (usec > 0);
- return -ETIMEDOUT;
+ ret = readl_poll_timeout_atomic(ptr, result,
+ (result & mask) == done ||
+ result == U32_MAX,
+ 1, usec);
+ if (result == U32_MAX) /* card removed */
+ return -ENODEV;
+
+ return ret;
}

/*
@@ -4289,7 +4287,6 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
pm_addr = ports[port_num]->addr + PORTPMSC;
pm_val = readl(pm_addr);
hlpm_addr = ports[port_num]->addr + PORTHLPMC;
- field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);

xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n",
enable ? "enable" : "disable", port_num + 1);
@@ -4301,6 +4298,7 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
* default one which works with mixed HIRD and BESL
* systems. See XHCI_DEFAULT_BESL definition in xhci.h
*/
+ field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);
if ((field & USB_BESL_SUPPORT) &&
(field & USB_BESL_BASELINE_VALID))
hird = USB_GET_BESL_BASELINE(field);
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index 7b9adeb3e7aa..a32d61a79ab8 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -86,9 +86,22 @@ static int close_rio(struct inode *inode, struct file *file)
{
struct rio_usb_data *rio = &rio_instance;

- rio->isopen = 0;
+ /* against disconnect() */
+ mutex_lock(&rio500_mutex);
+ mutex_lock(&(rio->lock));

- dev_info(&rio->rio_dev->dev, "Rio closed.\n");
+ rio->isopen = 0;
+ if (!rio->present) {
+ /* cleanup has been delayed */
+ kfree(rio->ibuf);
+ kfree(rio->obuf);
+ rio->ibuf = NULL;
+ rio->obuf = NULL;
+ } else {
+ dev_info(&rio->rio_dev->dev, "Rio closed.\n");
+ }
+ mutex_unlock(&(rio->lock));
+ mutex_unlock(&rio500_mutex);
return 0;
}

@@ -447,15 +460,23 @@ static int probe_rio(struct usb_interface *intf,
{
struct usb_device *dev = interface_to_usbdev(intf);
struct rio_usb_data *rio = &rio_instance;
- int retval;
+ int retval = 0;

- dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum);
+ mutex_lock(&rio500_mutex);
+ if (rio->present) {
+ dev_info(&intf->dev, "Second USB Rio at address %d refused\n", dev->devnum);
+ retval = -EBUSY;
+ goto bail_out;
+ } else {
+ dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum);
+ }

retval = usb_register_dev(intf, &usb_rio_class);
if (retval) {
dev_err(&dev->dev,
"Not able to get a minor for this device.\n");
- return -ENOMEM;
+ retval = -ENOMEM;
+ goto bail_out;
}

rio->rio_dev = dev;
@@ -464,7 +485,8 @@ static int probe_rio(struct usb_interface *intf,
dev_err(&dev->dev,
"probe_rio: Not enough memory for the output buffer\n");
usb_deregister_dev(intf, &usb_rio_class);
- return -ENOMEM;
+ retval = -ENOMEM;
+ goto bail_out;
}
dev_dbg(&intf->dev, "obuf address:%p\n", rio->obuf);

@@ -473,7 +495,8 @@ static int probe_rio(struct usb_interface *intf,
"probe_rio: Not enough memory for the input buffer\n");
usb_deregister_dev(intf, &usb_rio_class);
kfree(rio->obuf);
- return -ENOMEM;
+ retval = -ENOMEM;
+ goto bail_out;
}
dev_dbg(&intf->dev, "ibuf address:%p\n", rio->ibuf);

@@ -481,8 +504,10 @@ static int probe_rio(struct usb_interface *intf,

usb_set_intfdata (intf, rio);
rio->present = 1;
+bail_out:
+ mutex_unlock(&rio500_mutex);

- return 0;
+ return retval;
}

static void disconnect_rio(struct usb_interface *intf)
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 9560fde621ee..ea06f1fed6fa 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -3029,6 +3029,13 @@ static int sisusb_probe(struct usb_interface *intf,

mutex_init(&(sisusb->lock));

+ sisusb->sisusb_dev = dev;
+ sisusb->vrambase = SISUSB_PCI_MEMBASE;
+ sisusb->mmiobase = SISUSB_PCI_MMIOBASE;
+ sisusb->mmiosize = SISUSB_PCI_MMIOSIZE;
+ sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
+ /* Everything else is zero */
+
/* Register device */
retval = usb_register_dev(intf, &usb_sisusb_class);
if (retval) {
@@ -3039,13 +3046,7 @@ static int sisusb_probe(struct usb_interface *intf,
goto error_1;
}

- sisusb->sisusb_dev = dev;
- sisusb->minor = intf->minor;
- sisusb->vrambase = SISUSB_PCI_MEMBASE;
- sisusb->mmiobase = SISUSB_PCI_MMIOBASE;
- sisusb->mmiosize = SISUSB_PCI_MMIOSIZE;
- sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
- /* Everything else is zero */
+ sisusb->minor = intf->minor;

/* Allocate buffers */
sisusb->ibufsize = SISUSB_IBUF_SIZE;
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index c0d6ff1baa72..7931e6cecc70 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -301,9 +301,17 @@ static int stub_probe(struct usb_device *udev)
const char *udev_busid = dev_name(&udev->dev);
struct bus_id_priv *busid_priv;
int rc = 0;
+ char save_status;

dev_dbg(&udev->dev, "Enter probe\n");

+ /* Not sure if this is our device. Allocate here to avoid
+ * calling alloc while holding busid_table lock.
+ */
+ sdev = stub_device_alloc(udev);
+ if (!sdev)
+ return -ENOMEM;
+
/* check we should claim or not by busid_table */
busid_priv = get_busid_priv(udev_busid);
if (!busid_priv || (busid_priv->status == STUB_BUSID_REMOV) ||
@@ -318,6 +326,9 @@ static int stub_probe(struct usb_device *udev)
* See driver_probe_device() in driver/base/dd.c
*/
rc = -ENODEV;
+ if (!busid_priv)
+ goto sdev_free;
+
goto call_put_busid_priv;
}

@@ -337,12 +348,6 @@ static int stub_probe(struct usb_device *udev)
goto call_put_busid_priv;
}

- /* ok, this is my device */
- sdev = stub_device_alloc(udev);
- if (!sdev) {
- rc = -ENOMEM;
- goto call_put_busid_priv;
- }

dev_info(&udev->dev,
"usbip-host: register new device (bus %u dev %u)\n",
@@ -352,9 +357,16 @@ static int stub_probe(struct usb_device *udev)

/* set private data to usb_device */
dev_set_drvdata(&udev->dev, sdev);
+
busid_priv->sdev = sdev;
busid_priv->udev = udev;

+ save_status = busid_priv->status;
+ busid_priv->status = STUB_BUSID_ALLOC;
+
+ /* release the busid_lock */
+ put_busid_priv(busid_priv);
+
/*
* Claim this hub port.
* It doesn't matter what value we pass as owner
@@ -372,10 +384,8 @@ static int stub_probe(struct usb_device *udev)
dev_err(&udev->dev, "stub_add_files for %s\n", udev_busid);
goto err_files;
}
- busid_priv->status = STUB_BUSID_ALLOC;

- rc = 0;
- goto call_put_busid_priv;
+ return 0;

err_files:
usb_hub_release_port(udev->parent, udev->portnum,
@@ -384,23 +394,30 @@ static int stub_probe(struct usb_device *udev)
dev_set_drvdata(&udev->dev, NULL);
usb_put_dev(udev);

+ /* we already have busid_priv, just lock busid_lock */
+ spin_lock(&busid_priv->busid_lock);
busid_priv->sdev = NULL;
- stub_device_free(sdev);
+ busid_priv->status = save_status;
+ spin_unlock(&busid_priv->busid_lock);
+ /* lock is released - go to free */
+ goto sdev_free;

call_put_busid_priv:
+ /* release the busid_lock */
put_busid_priv(busid_priv);
+
+sdev_free:
+ stub_device_free(sdev);
+
return rc;
}

static void shutdown_busid(struct bus_id_priv *busid_priv)
{
- if (busid_priv->sdev && !busid_priv->shutdown_busid) {
- busid_priv->shutdown_busid = 1;
- usbip_event_add(&busid_priv->sdev->ud, SDEV_EVENT_REMOVED);
+ usbip_event_add(&busid_priv->sdev->ud, SDEV_EVENT_REMOVED);

- /* wait for the stop of the event handler */
- usbip_stop_eh(&busid_priv->sdev->ud);
- }
+ /* wait for the stop of the event handler */
+ usbip_stop_eh(&busid_priv->sdev->ud);
}

/*
@@ -427,11 +444,16 @@ static void stub_disconnect(struct usb_device *udev)
/* get stub_device */
if (!sdev) {
dev_err(&udev->dev, "could not get device");
- goto call_put_busid_priv;
+ /* release busid_lock */
+ put_busid_priv(busid_priv);
+ return;
}

dev_set_drvdata(&udev->dev, NULL);

+ /* release busid_lock before call to remove device files */
+ put_busid_priv(busid_priv);
+
/*
* NOTE: rx/tx threads are invoked for each usb_device.
*/
@@ -442,27 +464,36 @@ static void stub_disconnect(struct usb_device *udev)
(struct usb_dev_state *) udev);
if (rc) {
dev_dbg(&udev->dev, "unable to release port\n");
- goto call_put_busid_priv;
+ return;
}

/* If usb reset is called from event handler */
if (usbip_in_eh(current))
- goto call_put_busid_priv;
+ return;
+
+ /* we already have busid_priv, just lock busid_lock */
+ spin_lock(&busid_priv->busid_lock);
+ if (!busid_priv->shutdown_busid)
+ busid_priv->shutdown_busid = 1;
+ /* release busid_lock */
+ spin_unlock(&busid_priv->busid_lock);

/* shutdown the current connection */
shutdown_busid(busid_priv);

usb_put_dev(sdev->udev);

+ /* we already have busid_priv, just lock busid_lock */
+ spin_lock(&busid_priv->busid_lock);
/* free sdev */
busid_priv->sdev = NULL;
stub_device_free(sdev);

if (busid_priv->status == STUB_BUSID_ALLOC)
busid_priv->status = STUB_BUSID_ADDED;
-
-call_put_busid_priv:
- put_busid_priv(busid_priv);
+ /* release busid_lock */
+ spin_unlock(&busid_priv->busid_lock);
+ return;
}

#ifdef CONFIG_PM
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index cd059a801662..c59b23f6e9ba 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1248,7 +1248,7 @@ static void fbcon_deinit(struct vc_data *vc)
if (free_font)
vc->vc_font.data = NULL;

- if (vc->vc_hi_font_mask)
+ if (vc->vc_hi_font_mask && vc->vc_screenbuf)
set_vc_hi_font(vc, false);

if (!con_is_bound(&fb_con))
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2973608824ec..adb660669ff5 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6396,8 +6396,18 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
btrfs_i_size_write(parent_inode, parent_inode->vfs_inode.i_size +
name_len * 2);
inode_inc_iversion(&parent_inode->vfs_inode);
- parent_inode->vfs_inode.i_mtime = parent_inode->vfs_inode.i_ctime =
- current_time(&parent_inode->vfs_inode);
+ /*
+ * If we are replaying a log tree, we do not want to update the mtime
+ * and ctime of the parent directory with the current time, since the
+ * log replay procedure is responsible for setting them to their correct
+ * values (the ones it had when the fsync was done).
+ */
+ if (!test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) {
+ struct timespec64 now = current_time(&parent_inode->vfs_inode);
+
+ parent_inode->vfs_inode.i_mtime = now;
+ parent_inode->vfs_inode.i_ctime = now;
+ }
ret = btrfs_update_inode(trans, root, &parent_inode->vfs_inode);
if (ret)
btrfs_abort_transaction(trans, ret);
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index e659d9d61107..3ecaab8cca06 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -3831,7 +3831,13 @@ int btrfs_qgroup_add_swapped_blocks(struct btrfs_trans_handle *trans,
subvol_slot);
block->last_snapshot = last_snapshot;
block->level = level;
- if (bg->flags & BTRFS_BLOCK_GROUP_DATA)
+
+ /*
+ * If we have bg == NULL, we're called from btrfs_recover_relocation(),
+ * no one else can modify tree blocks thus we qgroup will not change
+ * no matter the value of trace_leaf.
+ */
+ if (bg && bg->flags & BTRFS_BLOCK_GROUP_DATA)
block->trace_leaf = true;
else
block->trace_leaf = false;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 1d82ee4883eb..b0f9cca8e8d4 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2161,22 +2161,30 @@ static int clean_dirty_subvols(struct reloc_control *rc)
struct btrfs_root *root;
struct btrfs_root *next;
int ret = 0;
+ int ret2;

list_for_each_entry_safe(root, next, &rc->dirty_subvol_roots,
reloc_dirty_list) {
- struct btrfs_root *reloc_root = root->reloc_root;
+ if (root->root_key.objectid != BTRFS_TREE_RELOC_OBJECTID) {
+ /* Merged subvolume, cleanup its reloc root */
+ struct btrfs_root *reloc_root = root->reloc_root;

- clear_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state);
- list_del_init(&root->reloc_dirty_list);
- root->reloc_root = NULL;
- if (reloc_root) {
- int ret2;
+ clear_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state);
+ list_del_init(&root->reloc_dirty_list);
+ root->reloc_root = NULL;
+ if (reloc_root) {

- ret2 = btrfs_drop_snapshot(reloc_root, NULL, 0, 1);
+ ret2 = btrfs_drop_snapshot(reloc_root, NULL, 0, 1);
+ if (ret2 < 0 && !ret)
+ ret = ret2;
+ }
+ btrfs_put_fs_root(root);
+ } else {
+ /* Orphan reloc tree, just clean it up */
+ ret2 = btrfs_drop_snapshot(root, NULL, 0, 1);
if (ret2 < 0 && !ret)
ret = ret2;
}
- btrfs_put_fs_root(root);
}
return ret;
}
@@ -2464,6 +2472,9 @@ void merge_reloc_roots(struct reloc_control *rc)
}
} else {
list_del_init(&reloc_root->root_list);
+ /* Don't forget to queue this reloc root for cleanup */
+ list_add_tail(&reloc_root->reloc_dirty_list,
+ &rc->dirty_subvol_roots);
}
}

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 19b00b1668ed..67b9feb72e03 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -5017,6 +5017,12 @@ static int send_hole(struct send_ctx *sctx, u64 end)
if (offset >= sctx->cur_inode_size)
return 0;

+ /*
+ * Don't go beyond the inode's i_size due to prealloc extents that start
+ * after the i_size.
+ */
+ end = min_t(u64, end, sctx->cur_inode_size);
+
if (sctx->flags & BTRFS_SEND_FLAG_NO_FILE_DATA)
return send_update_extent(sctx, offset, end - offset);

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 60aac95be54b..fc93e0d6e48d 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3095,6 +3095,12 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
root->log_transid++;
log->log_transid = root->log_transid;
root->log_start_pid = 0;
+ /*
+ * Update or create log root item under the root's log_mutex to prevent
+ * races with concurrent log syncs that can lead to failure to update
+ * log root item because it was not created yet.
+ */
+ ret = update_log_root(trans, log);
/*
* IO has been started, blocks of the log tree have WRITTEN flag set
* in their headers. new modifications of the log will be written to
@@ -3114,8 +3120,6 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,

mutex_unlock(&log_root_tree->log_mutex);

- ret = update_log_root(trans, log);
-
mutex_lock(&log_root_tree->log_mutex);
if (atomic_dec_and_test(&log_root_tree->log_writers)) {
/* atomic_dec_and_test implies a barrier */
@@ -5465,7 +5469,6 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
{
int ret = 0;
struct dentry *old_parent = NULL;
- struct btrfs_inode *orig_inode = inode;

/*
* for regular files, if its inode is already on disk, we don't
@@ -5485,16 +5488,6 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
}

while (1) {
- /*
- * If we are logging a directory then we start with our inode,
- * not our parent's inode, so we need to skip setting the
- * logged_trans so that further down in the log code we don't
- * think this inode has already been logged.
- */
- if (inode != orig_inode)
- inode->logged_trans = trans->transid;
- smp_mb();
-
if (btrfs_must_commit_transaction(trans, inode)) {
ret = 1;
break;
@@ -6223,7 +6216,6 @@ void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
* if this directory was already logged any new
* names for this file/dir will get recorded
*/
- smp_mb();
if (dir->logged_trans == trans->transid)
return;

diff --git a/fs/btrfs/zstd.c b/fs/btrfs/zstd.c
index 6b9e29d050f3..f828b8870178 100644
--- a/fs/btrfs/zstd.c
+++ b/fs/btrfs/zstd.c
@@ -102,10 +102,10 @@ static void zstd_reclaim_timer_fn(struct timer_list *timer)
unsigned long reclaim_threshold = jiffies - ZSTD_BTRFS_RECLAIM_JIFFIES;
struct list_head *pos, *next;

- spin_lock(&wsm.lock);
+ spin_lock_bh(&wsm.lock);

if (list_empty(&wsm.lru_list)) {
- spin_unlock(&wsm.lock);
+ spin_unlock_bh(&wsm.lock);
return;
}

@@ -134,7 +134,7 @@ static void zstd_reclaim_timer_fn(struct timer_list *timer)
if (!list_empty(&wsm.lru_list))
mod_timer(&wsm.timer, jiffies + ZSTD_BTRFS_RECLAIM_JIFFIES);

- spin_unlock(&wsm.lock);
+ spin_unlock_bh(&wsm.lock);
}

/*
@@ -195,7 +195,7 @@ static void zstd_cleanup_workspace_manager(void)
struct workspace *workspace;
int i;

- spin_lock(&wsm.lock);
+ spin_lock_bh(&wsm.lock);
for (i = 0; i < ZSTD_BTRFS_MAX_LEVEL; i++) {
while (!list_empty(&wsm.idle_ws[i])) {
workspace = container_of(wsm.idle_ws[i].next,
@@ -205,7 +205,7 @@ static void zstd_cleanup_workspace_manager(void)
wsm.ops->free_workspace(&workspace->list);
}
}
- spin_unlock(&wsm.lock);
+ spin_unlock_bh(&wsm.lock);

del_timer_sync(&wsm.timer);
}
@@ -227,7 +227,7 @@ static struct list_head *zstd_find_workspace(unsigned int level)
struct workspace *workspace;
int i = level - 1;

- spin_lock(&wsm.lock);
+ spin_lock_bh(&wsm.lock);
for_each_set_bit_from(i, &wsm.active_map, ZSTD_BTRFS_MAX_LEVEL) {
if (!list_empty(&wsm.idle_ws[i])) {
ws = wsm.idle_ws[i].next;
@@ -239,11 +239,11 @@ static struct list_head *zstd_find_workspace(unsigned int level)
list_del(&workspace->lru_list);
if (list_empty(&wsm.idle_ws[i]))
clear_bit(i, &wsm.active_map);
- spin_unlock(&wsm.lock);
+ spin_unlock_bh(&wsm.lock);
return ws;
}
}
- spin_unlock(&wsm.lock);
+ spin_unlock_bh(&wsm.lock);

return NULL;
}
@@ -302,7 +302,7 @@ static void zstd_put_workspace(struct list_head *ws)
{
struct workspace *workspace = list_to_workspace(ws);

- spin_lock(&wsm.lock);
+ spin_lock_bh(&wsm.lock);

/* A node is only taken off the lru if we are the corresponding level */
if (workspace->req_level == workspace->level) {
@@ -322,7 +322,7 @@ static void zstd_put_workspace(struct list_head *ws)
list_add(&workspace->list, &wsm.idle_ws[workspace->level - 1]);
workspace->req_level = 0;

- spin_unlock(&wsm.lock);
+ spin_unlock_bh(&wsm.lock);

if (workspace->level == ZSTD_BTRFS_MAX_LEVEL)
cond_wake_up(&wsm.wait);
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7037a137fa53..9a1db37b303a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3221,7 +3221,9 @@ cifs_read_allocate_pages(struct cifs_readdata *rdata, unsigned int nr_pages)
}

if (rc) {
- for (i = 0; i < nr_pages; i++) {
+ unsigned int nr_page_failed = i;
+
+ for (i = 0; i < nr_page_failed; i++) {
put_page(rdata->pages[i]);
rdata->pages[i] = NULL;
}
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index a37774a55f3a..d2d8708f5e1a 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1013,7 +1013,8 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
* not supported error. Client should accept it.
*/
cifs_dbg(VFS, "Server does not support validate negotiate\n");
- return 0;
+ rc = 0;
+ goto out_free_inbuf;
} else if (rc != 0) {
cifs_dbg(VFS, "validate protocol negotiate failed: %d\n", rc);
rc = -EIO;
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 9846f7e95282..7147e4aebecc 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -127,7 +127,7 @@ nlm_decode_lock(__be32 *p, struct nlm_lock *lock)

locks_init_lock(fl);
fl->fl_owner = current->files;
- fl->fl_pid = current->tgid;
+ fl->fl_pid = (pid_t)lock->svid;
fl->fl_flags = FL_POSIX;
fl->fl_type = F_RDLCK; /* as good as anything else */
start = ntohl(*p++);
@@ -269,7 +269,7 @@ nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
memset(lock, 0, sizeof(*lock));
locks_init_lock(&lock->fl);
lock->svid = ~(u32) 0;
- lock->fl.fl_pid = current->tgid;
+ lock->fl.fl_pid = (pid_t)lock->svid;

if (!(p = nlm_decode_cookie(p, &argp->cookie))
|| !(p = xdr_decode_string_inplace(p, &lock->caller,
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index 70154f376695..7ed9edf9aed4 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -119,7 +119,7 @@ nlm4_decode_lock(__be32 *p, struct nlm_lock *lock)

locks_init_lock(fl);
fl->fl_owner = current->files;
- fl->fl_pid = current->tgid;
+ fl->fl_pid = (pid_t)lock->svid;
fl->fl_flags = FL_POSIX;
fl->fl_type = F_RDLCK; /* as good as anything else */
p = xdr_decode_hyper(p, &start);
@@ -266,7 +266,7 @@ nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
memset(lock, 0, sizeof(*lock));
locks_init_lock(&lock->fl);
lock->svid = ~(u32) 0;
- lock->fl.fl_pid = current->tgid;
+ lock->fl.fl_pid = (pid_t)lock->svid;

if (!(p = nlm4_decode_cookie(p, &argp->cookie))
|| !(p = xdr_decode_string_inplace(p, &lock->caller,
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 602af23b98c7..cf074bce3eb3 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -60,7 +60,7 @@ static __always_inline unsigned long hweight_long(unsigned long w)
*/
static inline __u64 rol64(__u64 word, unsigned int shift)
{
- return (word << shift) | (word >> (64 - shift));
+ return (word << (shift & 63)) | (word >> ((-shift) & 63));
}

/**
@@ -70,7 +70,7 @@ static inline __u64 rol64(__u64 word, unsigned int shift)
*/
static inline __u64 ror64(__u64 word, unsigned int shift)
{
- return (word >> shift) | (word << (64 - shift));
+ return (word >> (shift & 63)) | (word << ((-shift) & 63));
}

/**
@@ -80,7 +80,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift)
*/
static inline __u32 rol32(__u32 word, unsigned int shift)
{
- return (word << shift) | (word >> ((-shift) & 31));
+ return (word << (shift & 31)) | (word >> ((-shift) & 31));
}

/**
@@ -90,7 +90,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift)
*/
static inline __u32 ror32(__u32 word, unsigned int shift)
{
- return (word >> shift) | (word << (32 - shift));
+ return (word >> (shift & 31)) | (word << ((-shift) & 31));
}

/**
@@ -100,7 +100,7 @@ static inline __u32 ror32(__u32 word, unsigned int shift)
*/
static inline __u16 rol16(__u16 word, unsigned int shift)
{
- return (word << shift) | (word >> (16 - shift));
+ return (word << (shift & 15)) | (word >> ((-shift) & 15));
}

/**
@@ -110,7 +110,7 @@ static inline __u16 rol16(__u16 word, unsigned int shift)
*/
static inline __u16 ror16(__u16 word, unsigned int shift)
{
- return (word >> shift) | (word << (16 - shift));
+ return (word >> (shift & 15)) | (word << ((-shift) & 15));
}

/**
@@ -120,7 +120,7 @@ static inline __u16 ror16(__u16 word, unsigned int shift)
*/
static inline __u8 rol8(__u8 word, unsigned int shift)
{
- return (word << shift) | (word >> (8 - shift));
+ return (word << (shift & 7)) | (word >> ((-shift) & 7));
}

/**
@@ -130,7 +130,7 @@ static inline __u8 rol8(__u8 word, unsigned int shift)
*/
static inline __u8 ror8(__u8 word, unsigned int shift)
{
- return (word >> shift) | (word << (8 - shift));
+ return (word >> (shift & 7)) | (word << ((-shift) & 7));
}

/**
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 7d57890cec67..96398d8d4fd8 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -83,6 +83,11 @@ enum {
* Enable cpuset controller in v1 cgroup to use v2 behavior.
*/
CGRP_ROOT_CPUSET_V2_MODE = (1 << 4),
+
+ /*
+ * Enable legacy local memory.events.
+ */
+ CGRP_ROOT_MEMORY_LOCAL_EVENTS = (1 << 5),
};

/* cftype->flags */
diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index aa5efd9351eb..d5ceb2839a2d 100644
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -54,6 +54,7 @@ struct list_lru {
#ifdef CONFIG_MEMCG_KMEM
struct list_head list;
int shrinker_id;
+ bool memcg_aware;
#endif
};

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index dbb6118370c1..28525c7a8ab0 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -777,8 +777,14 @@ static inline void count_memcg_event_mm(struct mm_struct *mm,
static inline void memcg_memory_event(struct mem_cgroup *memcg,
enum memcg_memory_event event)
{
- atomic_long_inc(&memcg->memory_events[event]);
- cgroup_file_notify(&memcg->events_file);
+ do {
+ atomic_long_inc(&memcg->memory_events[event]);
+ cgroup_file_notify(&memcg->events_file);
+
+ if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+ break;
+ } while ((memcg = parent_mem_cgroup(memcg)) &&
+ !mem_cgroup_is_root(memcg));
}

static inline void memcg_memory_event_mm(struct mm_struct *mm,
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 9fcf6338ea5f..4e2d82eea2cd 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -1775,11 +1775,13 @@ int cgroup_show_path(struct seq_file *sf, struct kernfs_node *kf_node,

enum cgroup2_param {
Opt_nsdelegate,
+ Opt_memory_localevents,
nr__cgroup2_params
};

static const struct fs_parameter_spec cgroup2_param_specs[] = {
- fsparam_flag ("nsdelegate", Opt_nsdelegate),
+ fsparam_flag("nsdelegate", Opt_nsdelegate),
+ fsparam_flag("memory_localevents", Opt_memory_localevents),
{}
};

@@ -1802,6 +1804,9 @@ static int cgroup2_parse_param(struct fs_context *fc, struct fs_parameter *param
case Opt_nsdelegate:
ctx->flags |= CGRP_ROOT_NS_DELEGATE;
return 0;
+ case Opt_memory_localevents:
+ ctx->flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;
+ return 0;
}
return -EINVAL;
}
@@ -1813,6 +1818,11 @@ static void apply_cgroup_root_flags(unsigned int root_flags)
cgrp_dfl_root.flags |= CGRP_ROOT_NS_DELEGATE;
else
cgrp_dfl_root.flags &= ~CGRP_ROOT_NS_DELEGATE;
+
+ if (root_flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+ cgrp_dfl_root.flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;
+ else
+ cgrp_dfl_root.flags &= ~CGRP_ROOT_MEMORY_LOCAL_EVENTS;
}
}

@@ -1820,6 +1830,8 @@ static int cgroup_show_options(struct seq_file *seq, struct kernfs_root *kf_root
{
if (cgrp_dfl_root.flags & CGRP_ROOT_NS_DELEGATE)
seq_puts(seq, ",nsdelegate");
+ if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+ seq_puts(seq, ",memory_localevents");
return 0;
}

@@ -6122,7 +6134,7 @@ static struct kobj_attribute cgroup_delegate_attr = __ATTR_RO(delegate);
static ssize_t features_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "nsdelegate\n");
+ return snprintf(buf, PAGE_SIZE, "nsdelegate\nmemory_localevents\n");
}
static struct kobj_attribute cgroup_features_attr = __ATTR_RO(features);

diff --git a/kernel/signal.c b/kernel/signal.c
index 227ba170298e..429f5663edd9 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2441,6 +2441,8 @@ bool get_signal(struct ksignal *ksig)
if (signal_group_exit(signal)) {
ksig->info.si_signo = signr = SIGKILL;
sigdelset(&current->pending.signal, SIGKILL);
+ trace_signal_deliver(SIGKILL, SEND_SIG_NOINFO,
+ &sighand->action[SIGKILL - 1]);
recalc_sigpending();
goto fatal;
}
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 05a66493a164..8cea61795a7e 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -427,7 +427,7 @@ predicate_parse(const char *str, int nr_parens, int nr_preds,
op_stack = kmalloc_array(nr_parens, sizeof(*op_stack), GFP_KERNEL);
if (!op_stack)
return ERR_PTR(-ENOMEM);
- prog_stack = kmalloc_array(nr_preds, sizeof(*prog_stack), GFP_KERNEL);
+ prog_stack = kcalloc(nr_preds, sizeof(*prog_stack), GFP_KERNEL);
if (!prog_stack) {
parse_error(pe, -ENOMEM, 0);
goto out_free;
@@ -578,7 +578,11 @@ predicate_parse(const char *str, int nr_parens, int nr_preds,
out_free:
kfree(op_stack);
kfree(inverts);
- kfree(prog_stack);
+ if (prog_stack) {
+ for (i = 0; prog_stack[i].pred; i++)
+ kfree(prog_stack[i].pred);
+ kfree(prog_stack);
+ }
return ERR_PTR(ret);
}

diff --git a/mm/compaction.c b/mm/compaction.c
index 444029da4e9d..368445cc71cf 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1397,7 +1397,7 @@ fast_isolate_freepages(struct compact_control *cc)
page = pfn_to_page(highest);
cc->free_pfn = highest;
} else {
- if (cc->direct_compaction) {
+ if (cc->direct_compaction && pfn_valid(min_pfn)) {
page = pfn_to_page(min_pfn);
cc->free_pfn = min_pfn;
}
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 80bbe62b16cd..94d3c83c0fa8 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -472,7 +472,7 @@ static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object,
{
unsigned long redzone_start;
unsigned long redzone_end;
- u8 tag;
+ u8 tag = 0xff;

if (gfpflags_allow_blocking(flags))
quarantine_reduce();
diff --git a/mm/list_lru.c b/mm/list_lru.c
index 0730bf8ff39f..d3b538146efd 100644
--- a/mm/list_lru.c
+++ b/mm/list_lru.c
@@ -37,11 +37,7 @@ static int lru_shrinker_id(struct list_lru *lru)

static inline bool list_lru_memcg_aware(struct list_lru *lru)
{
- /*
- * This needs node 0 to be always present, even
- * in the systems supporting sparse numa ids.
- */
- return !!lru->node[0].memcg_lrus;
+ return lru->memcg_aware;
}

static inline struct list_lru_one *
@@ -451,6 +447,8 @@ static int memcg_init_list_lru(struct list_lru *lru, bool memcg_aware)
{
int i;

+ lru->memcg_aware = memcg_aware;
+
if (!memcg_aware)
return 0;

diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h
index 552d5efd7cb7..17f06079a712 100644
--- a/scripts/gcc-plugins/gcc-common.h
+++ b/scripts/gcc-plugins/gcc-common.h
@@ -150,8 +150,12 @@ void print_gimple_expr(FILE *, gimple, int, int);
void dump_gimple_stmt(pretty_printer *, gimple, int, int);
#endif

+#ifndef __unused
#define __unused __attribute__((__unused__))
+#endif
+#ifndef __visible
#define __visible __attribute__((visibility("default")))
+#endif

#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
index c37d08118af5..ab3ab654363d 100644
--- a/security/integrity/evm/evm_crypto.c
+++ b/security/integrity/evm/evm_crypto.c
@@ -89,6 +89,9 @@ static struct shash_desc *init_desc(char type, uint8_t hash_algo)
tfm = &hmac_tfm;
algo = evm_hmac;
} else {
+ if (hash_algo >= HASH_ALGO__LAST)
+ return ERR_PTR(-EINVAL);
+
tfm = &evm_tfm[hash_algo];
algo = hash_algo_name[hash_algo];
}
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index e0cc323f948f..1cc822a59054 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -498,10 +498,11 @@ static void add_rules(struct ima_rule_entry *entries, int count,

list_add_tail(&entry->list, &ima_policy_rules);
}
- if (entries[i].action == APPRAISE)
+ if (entries[i].action == APPRAISE) {
temp_ima_appraise |= ima_appraise_flag(entries[i].func);
- if (entries[i].func == POLICY_CHECK)
- temp_ima_appraise |= IMA_APPRAISE_POLICY;
+ if (entries[i].func == POLICY_CHECK)
+ temp_ima_appraise |= IMA_APPRAISE_POLICY;
+ }
}
}

@@ -1146,10 +1147,10 @@ enum {
};

static const char *const mask_tokens[] = {
- "MAY_EXEC",
- "MAY_WRITE",
- "MAY_READ",
- "MAY_APPEND"
+ "^MAY_EXEC",
+ "^MAY_WRITE",
+ "^MAY_READ",
+ "^MAY_APPEND"
};

#define __ima_hook_stringify(str) (#str),
@@ -1209,6 +1210,7 @@ int ima_policy_show(struct seq_file *m, void *v)
struct ima_rule_entry *entry = v;
int i;
char tbuf[64] = {0,};
+ int offset = 0;

rcu_read_lock();

@@ -1232,15 +1234,17 @@ int ima_policy_show(struct seq_file *m, void *v)
if (entry->flags & IMA_FUNC)
policy_func_show(m, entry->func);

- if (entry->flags & IMA_MASK) {
+ if ((entry->flags & IMA_MASK) || (entry->flags & IMA_INMASK)) {
+ if (entry->flags & IMA_MASK)
+ offset = 1;
if (entry->mask & MAY_EXEC)
- seq_printf(m, pt(Opt_mask), mt(mask_exec));
+ seq_printf(m, pt(Opt_mask), mt(mask_exec) + offset);
if (entry->mask & MAY_WRITE)
- seq_printf(m, pt(Opt_mask), mt(mask_write));
+ seq_printf(m, pt(Opt_mask), mt(mask_write) + offset);
if (entry->mask & MAY_READ)
- seq_printf(m, pt(Opt_mask), mt(mask_read));
+ seq_printf(m, pt(Opt_mask), mt(mask_read) + offset);
if (entry->mask & MAY_APPEND)
- seq_printf(m, pt(Opt_mask), mt(mask_append));
+ seq_printf(m, pt(Opt_mask), mt(mask_append) + offset);
seq_puts(m, " ");
}

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index fc99a5a6f7e1..239697421118 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6166,13 +6166,15 @@ static const struct hda_fixup alc269_fixups[] = {
.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
},
[ALC255_FIXUP_ACER_MIC_NO_PRESENCE] = {
- .type = HDA_FIXUP_PINS,
- .v.pins = (const struct hda_pintbl[]) {
- { 0x19, 0x01a1913c }, /* use as headset mic, without its own jack detect */
- { }
+ .type = HDA_FIXUP_VERBS,
+ .v.verbs = (const struct hda_verb[]) {
+ /* Enable the Mic */
+ { 0x20, AC_VERB_SET_COEF_INDEX, 0x45 },
+ { 0x20, AC_VERB_SET_PROC_COEF, 0x5089 },
+ {}
},
.chained = true,
- .chain_id = ALC255_FIXUP_HEADSET_MODE
+ .chain_id = ALC269_FIXUP_LIFEBOOK_EXTMIC
},
[ALC255_FIXUP_ASUS_MIC_NO_PRESENCE] = {
.type = HDA_FIXUP_PINS,
@@ -7217,6 +7219,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
{0x18, 0x02a11030},
{0x19, 0x0181303F},
{0x21, 0x0221102f}),
+ SND_HDA_PIN_QUIRK(0x10ec0255, 0x1025, "Acer", ALC255_FIXUP_ACER_MIC_NO_PRESENCE,
+ {0x12, 0x90a60140},
+ {0x14, 0x90170120},
+ {0x21, 0x02211030}),
SND_HDA_PIN_QUIRK(0x10ec0255, 0x1025, "Acer", ALC255_FIXUP_ACER_MIC_NO_PRESENCE,
{0x12, 0x90a601c0},
{0x14, 0x90171120},
@@ -7654,7 +7660,7 @@ static int patch_alc269(struct hda_codec *codec)

spec = codec->spec;
spec->gen.shared_mic_vref_pin = 0x18;
- codec->power_save_node = 1;
+ codec->power_save_node = 0;

#ifdef CONFIG_PM
codec->patch_ops.suspend = alc269_suspend;
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index b61f65bed4e4..2b57854335b3 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -720,6 +720,15 @@ static int line6_init_cap_control(struct usb_line6 *line6)
return 0;
}

+static void line6_startup_work(struct work_struct *work)
+{
+ struct usb_line6 *line6 =
+ container_of(work, struct usb_line6, startup_work.work);
+
+ if (line6->startup)
+ line6->startup(line6);
+}
+
/*
Probe USB device.
*/
@@ -755,6 +764,7 @@ int line6_probe(struct usb_interface *interface,
line6->properties = properties;
line6->usbdev = usbdev;
line6->ifcdev = &interface->dev;
+ INIT_DELAYED_WORK(&line6->startup_work, line6_startup_work);

strcpy(card->id, properties->id);
strcpy(card->driver, driver_name);
@@ -825,6 +835,8 @@ void line6_disconnect(struct usb_interface *interface)
if (WARN_ON(usbdev != line6->usbdev))
return;

+ cancel_delayed_work(&line6->startup_work);
+
if (line6->urb_listen != NULL)
line6_stop_listen(line6);

diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h
index 61425597eb61..650d909c9c4f 100644
--- a/sound/usb/line6/driver.h
+++ b/sound/usb/line6/driver.h
@@ -178,11 +178,15 @@ struct usb_line6 {
fifo;
} messages;

+ /* Work for delayed PCM startup */
+ struct delayed_work startup_work;
+
/* If MIDI is supported, buffer_message contains the pre-processed data;
* otherwise the data is only in urb_listen (buffer_incoming).
*/
void (*process_message)(struct usb_line6 *);
void (*disconnect)(struct usb_line6 *line6);
+ void (*startup)(struct usb_line6 *line6);
};

extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1,
diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c
index 325b07b98b3c..7e39083f8f76 100644
--- a/sound/usb/line6/toneport.c
+++ b/sound/usb/line6/toneport.c
@@ -54,9 +54,6 @@ struct usb_line6_toneport {
/* Firmware version (x 100) */
u8 firmware_version;

- /* Work for delayed PCM startup */
- struct delayed_work pcm_work;
-
/* Device type */
enum line6_device_type type;

@@ -241,12 +238,8 @@ static int snd_toneport_source_put(struct snd_kcontrol *kcontrol,
return 1;
}

-static void toneport_start_pcm(struct work_struct *work)
+static void toneport_startup(struct usb_line6 *line6)
{
- struct usb_line6_toneport *toneport =
- container_of(work, struct usb_line6_toneport, pcm_work.work);
- struct usb_line6 *line6 = &toneport->line6;
-
line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true);
}

@@ -394,7 +387,7 @@ static int toneport_setup(struct usb_line6_toneport *toneport)
if (toneport_has_led(toneport))
toneport_update_led(toneport);

- schedule_delayed_work(&toneport->pcm_work,
+ schedule_delayed_work(&toneport->line6.startup_work,
msecs_to_jiffies(TONEPORT_PCM_DELAY * 1000));
return 0;
}
@@ -407,8 +400,6 @@ static void line6_toneport_disconnect(struct usb_line6 *line6)
struct usb_line6_toneport *toneport =
(struct usb_line6_toneport *)line6;

- cancel_delayed_work_sync(&toneport->pcm_work);
-
if (toneport_has_led(toneport))
toneport_remove_leds(toneport);
}
@@ -424,9 +415,9 @@ static int toneport_init(struct usb_line6 *line6,
struct usb_line6_toneport *toneport = (struct usb_line6_toneport *) line6;

toneport->type = id->driver_info;
- INIT_DELAYED_WORK(&toneport->pcm_work, toneport_start_pcm);

line6->disconnect = line6_toneport_disconnect;
+ line6->startup = toneport_startup;

/* initialize PCM subsystem: */
err = line6_init_pcm(line6, &toneport_pcm_properties);
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index f412ebc90610..8e2a5eb38bc0 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -224,6 +224,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
+ case KVM_CAP_MAX_VCPU_ID:
+ r = KVM_MAX_VCPU_ID;
+ break;
case KVM_CAP_NR_MEMSLOTS:
r = KVM_USER_MEM_SLOTS;
break;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 2b2a460c6252..48c549a88486 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3062,8 +3062,6 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
case KVM_CAP_MULTI_ADDRESS_SPACE:
return KVM_ADDRESS_SPACE_NUM;
#endif
- case KVM_CAP_MAX_VCPU_ID:
- return KVM_MAX_VCPU_ID;
default:
break;
}
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