Export asus_wmi_evaluate_method() and related headers for use by other
drivers.
hid-asus is going to use this to avoid advertising that it has a keyboard
backlight when the keyboard backlight is controlled via WMI.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Since commit dbb3d78f61 ("platform/x86: asus-wmi: Call led hw_changed
API on kbd brightness change"), asus-wmi directly changes the keyboard
LED brightness when the keyboard brightness keys are pressed,
raising the appropriate notification.
However, this notification was unintentionally also being raised during
boot and resume from suspend. This was resulting in userspace showing
the keyboard LED OSD on resume for no good reason.
Move the keyboard LED brightness changed notification
from kbd_led_update to the new kbd_led_set_by_kbd function which is only
called from the keyboard brightness function keys codepath.
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The only usage of device_type structure is getting stored as
a reference in the type field of device structure. This type
field is declared const. Therefore, the device_type structure
can never be modified and can be declared as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Lenovo Legion Y530-15ICH is another model without
hardware radio switch. Add it to no_hw_rfkill to
enable wireless.
Signed-off-by: Misha Komarovskiy <zombah@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use TEST_GEN_PROGS and don't redefine all, this makes the out-of-tree
build work. We need to move the extra dependencies below the include
of lib.mk, because it adds the $(OUTPUT) prefix if it's defined.
We can also drop the clean rule, lib.mk does it for us.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
For the out-of-tree build to work we need to tell switch_endian_test
to look for check-reversed.S in $(OUTPUT).
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
When running the ebb tests after building on a ppc64le Ubuntu machine:
$ pmu/ebb/reg_access_test: error while loading shared libraries:
R_PPC64_ADDR16_HI reloc at 0x000000013a965130 for symbol `' out of
range
This is because the Ubuntu toolchain builds has PIE enabled by default.
Change it to be always off instead.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We should use TEST_GEN_PROGS, not TEST_PROGS. That tells the selftests
makefile (lib.mk) that those tests are generated (built), and so it
adds the $(OUTPUT) prefix for us, making the out-of-tree build work
correctly.
It also means we don't need our own clean rule, lib.mk does it.
We also have to update the signal_tm rule to use $(OUTPUT).
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We should use TEST_GEN_PROGS, not TEST_PROGS. That tells the selftests
makefile (lib.mk) that those tests are generated (built), and so it
adds the $(OUTPUT) prefix for us, making the out-of-tree build work
correctly.
It also means we don't need our own clean rule, lib.mk does it.
We also have to update the ptrace-pkey and core-pkey rules to use
$(OUTPUT).
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Kaixuxia repors that it's possible to crash overlayfs by removing the
whiteout on the upper layer before creating a directory over it. This is a
reproducer:
mkdir lower upper work merge
touch lower/file
mount -t overlay overlay -olowerdir=lower,upperdir=upper,workdir=work merge
rm merge/file
ls -al merge/file
rm upper/file
ls -al merge/
mkdir merge/file
Before commencing with a vfs_rename(..., RENAME_EXCHANGE) verify that the
lookup of "upper" is positive and is a whiteout, and return ESTALE
otherwise.
Reported by: kaixuxia <xiakaixu1987@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: e9be9d5e76 ("overlay filesystem")
Cc: <stable@vger.kernel.org> # v3.18
When building with clang (8 trunk, 7.0 release) the frame size limit is
hit:
arch/powerpc/xmon/xmon.c:452:12: warning: stack frame size of 2576
bytes in function 'xmon_core' [-Wframe-larger-than=]
Some investigation by Naveen indicates this is due to clang saving the
addresses to printf format strings on the stack.
While this issue is investigated, bump up the frame size limit for xmon
when building with clang.
Link: https://github.com/ClangBuiltLinux/linux/issues/252
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
typing 'make' inside tools/testing/selftests/powerpc gave a build
warning:
BUILD_TARGET=tools/testing/selftests/powerpc/security; mkdir -p $BUILD_TARGET; make OUTPUT=$BUILD_TARGET -k -C security all
make[1]: Entering directory 'tools/testing/selftests/powerpc/security'
../../lib.mk:20: ../../../../scripts/subarch.include: No such file or directory
make[1]: *** No rule to make target '../../../../scripts/subarch.include'.
make[1]: Failed to remake makefile '../../../../scripts/subarch.include'.
The build is one level deeper than lib.mk thinks it is. Set top_srcdir
to set things straight.
Note that the test program is still built.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We return 0 in the case of a nonblocking socket that has no data
available. However, this is incorrect and may confuse applications.
After this patch we do the correct thing and return the error
EAGAIN.
Quoting return codes from recvmsg manpage,
EAGAIN or EWOULDBLOCK
The socket is marked nonblocking and the receive operation would
block, or a receive timeout had been set and the timeout expired
before data was received.
Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
On our test machine, bpf selftest test_flow_dissector.sh failed
with the following error:
# ./test_flow_dissector.sh
bpffs not mounted. Mounting...
libbpf: failed to create map (name: 'jmp_table'): Operation not permitted
libbpf: failed to load object 'bpf_flow.o'
./flow_dissector_load: bpf_prog_load bpf_flow.o
selftests: test_flow_dissector [FAILED]
Let us increase the rlimit to remove the above map
creation failure.
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The example contains two values for the capacity currently, 446 in text
and 578 in code. The numbers are all correct but can confuse some of the
readers. This patch tries to explain how the numbers are calculated to
avoid same confusion going forward.
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Tell the version numbers when the pptable versions do not match.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch will work as workaround for silicon limitation
related to PWM dutycycle when the backlight level goes to 0.
Actually PWM value is 16 bit value and valid range from 1-65535.
when ever user requested to set this PWM value to 0 which is not
fall in the range, in VBIOS taken care this by limiting to 1.
This patch here will do the same. Either driver or VBIOS can not
pass 0 value as it is not a valid range for PWM and it will
give a high PWM pulse which is not the intended behaviour as
per HW constraints.
Signed-off-by: suresh guttula <suresh.guttula@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
already supported COPY, by copying a limited amount of data and then
returning a short result, letting the client resend. The asynchronous
protocol should offer better performance at the expense of some
complexity.
The other highlight is Trond's work to convert the duplicate reply cache
to a red-black tree, and to move it and some other server caches to RCU.
(Previously these have meant taking global spinlocks on every RPC.)
Otherwise, some RDMA work and miscellaneous bugfixes.
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Merge tag 'nfsd-4.20' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Olga added support for the NFSv4.2 asynchronous copy protocol. We
already supported COPY, by copying a limited amount of data and then
returning a short result, letting the client resend. The asynchronous
protocol should offer better performance at the expense of some
complexity.
The other highlight is Trond's work to convert the duplicate reply
cache to a red-black tree, and to move it and some other server caches
to RCU. (Previously these have meant taking global spinlocks on every
RPC)
Otherwise, some RDMA work and miscellaneous bugfixes"
* tag 'nfsd-4.20' of git://linux-nfs.org/~bfields/linux: (30 commits)
lockd: fix access beyond unterminated strings in prints
nfsd: Fix an Oops in free_session()
nfsd: correctly decrement odstate refcount in error path
svcrdma: Increase the default connection credit limit
svcrdma: Remove try_module_get from backchannel
svcrdma: Remove ->release_rqst call in bc reply handler
svcrdma: Reduce max_send_sges
nfsd: fix fall-through annotations
knfsd: Improve lookup performance in the duplicate reply cache using an rbtree
knfsd: Further simplify the cache lookup
knfsd: Simplify NFS duplicate replay cache
knfsd: Remove dead code from nfsd_cache_lookup
SUNRPC: Simplify TCP receive code
SUNRPC: Replace the cache_detail->hash_lock with a regular spinlock
SUNRPC: Remove non-RCU protected lookup
NFS: Fix up a typo in nfs_dns_ent_put
NFS: Lockless DNS lookups
knfsd: Lockless lookup of NFSv4 identities.
SUNRPC: Lockless server RPCSEC_GSS context lookup
knfsd: Allow lockless lookups of the exports
...
plus trivial indentation fixes.
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Merge tag 'cramfs_fixes' of git://git.linaro.org/people/nicolas.pitre/linux
Pull cramfs fixes from Nicolas Pitre:
"Make the Cramfs code more robust against filesystem corruptions, plus
trivial indentation fixes"
* tag 'cramfs_fixes' of git://git.linaro.org/people/nicolas.pitre/linux:
Cramfs: trivial whitespace fixes
Cramfs: fix abad comparison when wrap-arounds occur
The mvpp2 driver has the curious behaviour of passing a stack variable
to irq_set_affinity_hint(), which results in the kernel exploding
the first time anyone accesses this information. News flash: userspace
does, and irqbalance will happily take the machine down. Great stuff.
An easy fix is to track the mask within the queue_vector structure,
and to make sure it has the same lifetime as the interrupt itself.
Fixes: e531f76757 ("net: mvpp2: handle cases where more CPUs are available than s/w threads")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is possible for corrupted filesystem images to produce very large
block offsets that may wrap when a length is added, and wrongly pass
the buffer size test.
Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Abdul Haleem reported a build error on ppc :
drivers/net/ethernet/mellanox/mlx4/en_rx.c:582:18: warning: `struct
iphdr` declared inside parameter list [enabled by default]
struct iphdr *iph)
^
drivers/net/ethernet/mellanox/mlx4/en_rx.c:582:18: warning: its scope is
only this definition or declaration, which is probably not what you want
[enabled by default]
drivers/net/ethernet/mellanox/mlx4/en_rx.c: In function
get_fixed_ipv4_csum:
drivers/net/ethernet/mellanox/mlx4/en_rx.c:586:20: error: dereferencing
pointer to incomplete type
__u8 ipproto = iph->protocol;
^
Fixes: 55469bc6b5 ("drivers: net: remove <net/busy_poll.h> inclusion when not needed")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Back in January I posted patches to create function based events. These were
the events that you suggested I make to allow developers to easily create
events in code where no trace event exists. After posting those changes for
review, it was suggested that we implement this instead with kprobes.
The problem with kprobes is that the interface is too complex and needs to
be simplified. Masami Hiramatsu posted patches in March and I've been
playing with them a bit. There's been a bit of clean up in the kprobe code
that was inspired by the function based event patches, and a couple of
enhancements to the kprobe event interface.
- If the arch supports it (we added support for x86), you can place a
kprobe event at the start of a function and use $arg1, $arg2, etc
to reference the arguments of a function. (Before you needed to know
what register or where on the stack the argument was).
- The second is a way to see array of events. For example, if you reference
a mac address, you can add:
echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events
And this will produce:
mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec}
Other changes include
- Exporting trace_dump_stack to modules
- Have the stack tracer trace the entire stack (stop trying to remove
tracing itself, as we keep removing too much).
- Added support for SDT in uprobes
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Merge tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"The biggest change here is the updates to kprobes
Back in January I posted patches to create function based events.
These were the events that you suggested I make to allow developers to
easily create events in code where no trace event exists. After
posting those changes for review, it was suggested that we implement
this instead with kprobes.
The problem with kprobes is that the interface is too complex and
needs to be simplified. Masami Hiramatsu posted patches in March and
I've been playing with them a bit. There's been a bit of clean up in
the kprobe code that was inspired by the function based event patches,
and a couple of enhancements to the kprobe event interface.
- If the arch supports it (we added support for x86), you can place a
kprobe event at the start of a function and use $arg1, $arg2, etc
to reference the arguments of a function. (Before you needed to
know what register or where on the stack the argument was).
- The second is a way to see array of events. For example, if you
reference a mac address, you can add:
echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events
And this will produce:
mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec}
Other changes include
- Exporting trace_dump_stack to modules
- Have the stack tracer trace the entire stack (stop trying to remove
tracing itself, as we keep removing too much).
- Added support for SDT in uprobes"
[ SDT - "Statically Defined Tracing" are userspace markers for tracing.
Let's not use random TLA's in explanations unless they are fairly
well-established as generic (at least for kernel people) - Linus ]
* tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits)
tracing: Have stack tracer trace full stack
tracing: Export trace_dump_stack to modules
tracing: probeevent: Fix uninitialized used of offset in parse args
tracing/kprobes: Allow kprobe-events to record module symbol
tracing/kprobes: Check the probe on unloaded module correctly
tracing/uprobes: Fix to return -EFAULT if copy_from_user failed
tracing: probeevent: Add $argN for accessing function args
x86: ptrace: Add function argument access API
tracing: probeevent: Add array type support
tracing: probeevent: Add symbol type
tracing: probeevent: Unify fetch_insn processing common part
tracing: probeevent: Append traceprobe_ for exported function
tracing: probeevent: Return consumed bytes of dynamic area
tracing: probeevent: Unify fetch type tables
tracing: probeevent: Introduce new argument fetching code
tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions
tracing: probeevent: Cleanup argument field definition
tracing: probeevent: Cleanup print argument functions
trace_uprobe: support reference counter in fd-based uprobe
perf probe: Support SDT markers having reference counter (semaphore)
...
error return value, and the other is for the self tests.
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Merge tag 'trace-v4.19-rc8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Masami had a couple more fixes to the synthetic events. One was a
proper error return value, and the other is for the self tests"
* tag 'trace-v4.19-rc8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
selftests/ftrace: Fix synthetic event test to delete event correctly
tracing: Return -ENOENT if there is no target synthetic event
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Merge tag 'for-linus-4.20a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Only several small fixes and cleanups this time"
* tag 'for-linus-4.20a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: drop writing error messages to xenstore
xen/pvh: don't try to unplug emulated devices
add myself as reviewer for Xen support in Linux
xen: remove redundant 'default n' from Kconfig
xen/balloon: Support xend-based toolstack
xen/pvh: increase early stack size
xen: make xen_qlock_wait() nestable
xen: fix race in xen_qlock_wait()
xen/balloon: Grammar s/Is it/It is/
xen: Make XEN_BACKEND selectable by DomU
Rework the handling of the P-unit semaphore on Intel Baytrail and
Cherrytrail systems to avoid race conditions and excessive overhead
related to it (Hans de Goede).
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Merge tag 'acpi-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"Rework the handling of the P-unit semaphore on Intel Baytrail and
Cherrytrail systems to avoid race conditions and excessive overhead
related to it (Hans de Goede)"
* tag 'acpi-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / PMIC: xpower: Add depends on IOSF_MBI to Kconfig entry
i2c: designware: Cleanup bus lock handling
ACPI / PMIC: xpower: Block P-Unit I2C access during read-modify-write
x86: baytrail/cherrytrail: Rework and move P-Unit PMIC bus semaphore code
- Fix build regression in the intel_pstate driver that doesn't
build without CONFIG_ACPI after recent changes (Dominik Brodowski).
- One of the heuristics in the menu cpuidle governor is based on a
function returning 0 most of the time, so drop it and clean up
the scheduler code related to it (Daniel Lezcano).
- Prevent the arm_big_little cpufreq driver from being used on ARM64
which is not suitable for it and drop the arm_big_little_dt driver
that is not used any more (Sudeep Holla).
- Prevent the hung task watchdog from triggering during resume from
system-wide sleep states by disabling it before freezing tasks and
enabling it again after they have been thawed (Vitaly Kuznetsov).
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Merge tag 'pm-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These remove a questionable heuristic from the menu cpuidle governor,
fix a recent build regression in the intel_pstate driver, clean up ARM
big-Little support in cpufreq and fix up hung task watchdog's
interaction with system-wide power management transitions.
Specifics:
- Fix build regression in the intel_pstate driver that doesn't build
without CONFIG_ACPI after recent changes (Dominik Brodowski).
- One of the heuristics in the menu cpuidle governor is based on a
function returning 0 most of the time, so drop it and clean up the
scheduler code related to it (Daniel Lezcano).
- Prevent the arm_big_little cpufreq driver from being used on ARM64
which is not suitable for it and drop the arm_big_little_dt driver
that is not used any more (Sudeep Holla).
- Prevent the hung task watchdog from triggering during resume from
system-wide sleep states by disabling it before freezing tasks and
enabling it again after they have been thawed (Vitaly Kuznetsov)"
* tag 'pm-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
kernel: hung_task.c: disable on suspend
cpufreq: remove unused arm_big_little_dt driver
cpufreq: drop ARM_BIG_LITTLE_CPUFREQ support for ARM64
cpufreq: intel_pstate: Fix compilation for !CONFIG_ACPI
cpuidle: menu: Remove get_loadavg() from the performance multiplier
sched: Factor out nr_iowait and nr_iowait_cpu
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Merge tag 'for-4.20-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull more btrfs updates from David Sterba:
"This contains a few minor updates and fixes that were under testing or
arrived shortly after the merge window freeze, mostly stable material"
* tag 'for-4.20-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix use-after-free when dumping free space
Btrfs: fix use-after-free during inode eviction
btrfs: move the dio_sem higher up the callchain
btrfs: don't run delayed_iputs in commit
btrfs: fix insert_reserved error handling
btrfs: only free reserved extent if we didn't insert it
btrfs: don't use ctl->free_space for max_extent_size
btrfs: set max_extent_size properly
btrfs: reset max_extent_size properly
MAINTAINERS: update my email address for btrfs
btrfs: delayed-ref: extract find_first_ref_head from find_ref_head
Btrfs: fix deadlock when writing out free space caches
Btrfs: fix assertion on fsync of regular file when using no-holes feature
Btrfs: fix null pointer dereference on compressed write path error
When running the rfi_flush test, if the system is loaded, we see two
issues:
1. The L1d misses when rfi_flush is disabled increase significantly due
to other workloads interfering with the cache.
2. The L1d misses when rfi_flush is enabled sometimes goes slightly
below the expected number of misses.
To address these, let's relax the expected number of L1d misses:
1. When rfi_flush is disabled, we allow upto half the expected number of
the misses for when rfi_flush is enabled.
2. When rfi_flush is enabled, we allow ~1% lower number of cache misses.
Reported-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In a former commit, PCM constraint based on LCM of SYT_INTERVAL was
obsoleted with PCM rule. However, the new PCM rule brings -EINVAL in
some cases that max/min values of size of buffer/period is not
multiples of one of values of SYT_INTERVAL. For example, pulseaudio
always fail to configure PCM substream.
This commit changes strategy for the PCM rule. Although the buggy rules
had a single dependency (rate from period, period from rate, rate from
buffer, buffer from rate), a revised rule has double dependencies
(period from period/rate, buffer from buffer/rate). A step of value is
calculated with table of SYT_INTERVAL and list of available rates. This
prevents interval template which brings -EINVAL to a call of
snd_interval_refine().
Fixes: 5950229582bc('ALSA: firewire-lib: add PCM rules to obsolete PCM constraints based on LCM of SYT_INTERVAL')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
xtensa-specific property sections may be section-specific. They should
be collected in the order of appearance. .gnu.linkonce.prop.* input
sections should be collected into the .xt.prop output section.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Xtensa doesn't have anything custom in its debug sections list. Use
macro DWARF_DEBUG instead of opencoding it.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* pm-cpuidle:
cpuidle: menu: Remove get_loadavg() from the performance multiplier
sched: Factor out nr_iowait and nr_iowait_cpu
* pm-cpufreq:
cpufreq: remove unused arm_big_little_dt driver
cpufreq: drop ARM_BIG_LITTLE_CPUFREQ support for ARM64
cpufreq: intel_pstate: Fix compilation for !CONFIG_ACPI
Ever since commit 88b0193d94 ("perf/callchain: Force USER_DS when
invoking perf_callchain_user()") the caller does this for us.
Signed-off-by: David S. Miller <davem@davemloft.net>
When an FDB entry is configured, the address is validated to have the
length of an Ethernet address, but the device for which the address is
configured can be of any type.
The above can result in the use of uninitialized memory when the address
is later compared against existing addresses since 'dev->addr_len' is
used and it may be greater than ETH_ALEN, as with ip6tnl devices.
Fix this by making sure that FDB entries are only configured for
Ethernet devices.
BUG: KMSAN: uninit-value in memcmp+0x11d/0x180 lib/string.c:863
CPU: 1 PID: 4318 Comm: syz-executor998 Not tainted 4.19.0-rc3+ #49
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x14b/0x190 lib/dump_stack.c:113
kmsan_report+0x183/0x2b0 mm/kmsan/kmsan.c:956
__msan_warning+0x70/0xc0 mm/kmsan/kmsan_instr.c:645
memcmp+0x11d/0x180 lib/string.c:863
dev_uc_add_excl+0x165/0x7b0 net/core/dev_addr_lists.c:464
ndo_dflt_fdb_add net/core/rtnetlink.c:3463 [inline]
rtnl_fdb_add+0x1081/0x1270 net/core/rtnetlink.c:3558
rtnetlink_rcv_msg+0xa0b/0x1530 net/core/rtnetlink.c:4715
netlink_rcv_skb+0x36e/0x5f0 net/netlink/af_netlink.c:2454
rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:4733
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x1638/0x1720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x1205/0x1290 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:621 [inline]
sock_sendmsg net/socket.c:631 [inline]
___sys_sendmsg+0xe70/0x1290 net/socket.c:2114
__sys_sendmsg net/socket.c:2152 [inline]
__do_sys_sendmsg net/socket.c:2161 [inline]
__se_sys_sendmsg+0x2a3/0x3d0 net/socket.c:2159
__x64_sys_sendmsg+0x4a/0x70 net/socket.c:2159
do_syscall_64+0xb8/0x100 arch/x86/entry/common.c:291
entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x440ee9
Code: e8 cc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff6a93b518 EFLAGS: 00000213 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440ee9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000213 R12: 000000000000b4b0
R13: 0000000000401ec0 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:256 [inline]
kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:181
kmsan_kmalloc+0x98/0x100 mm/kmsan/kmsan_hooks.c:91
kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan_hooks.c:100
slab_post_alloc_hook mm/slab.h:446 [inline]
slab_alloc_node mm/slub.c:2718 [inline]
__kmalloc_node_track_caller+0x9e7/0x1160 mm/slub.c:4351
__kmalloc_reserve net/core/skbuff.c:138 [inline]
__alloc_skb+0x2f5/0x9e0 net/core/skbuff.c:206
alloc_skb include/linux/skbuff.h:996 [inline]
netlink_alloc_large_skb net/netlink/af_netlink.c:1189 [inline]
netlink_sendmsg+0xb49/0x1290 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:621 [inline]
sock_sendmsg net/socket.c:631 [inline]
___sys_sendmsg+0xe70/0x1290 net/socket.c:2114
__sys_sendmsg net/socket.c:2152 [inline]
__do_sys_sendmsg net/socket.c:2161 [inline]
__se_sys_sendmsg+0x2a3/0x3d0 net/socket.c:2159
__x64_sys_sendmsg+0x4a/0x70 net/socket.c:2159
do_syscall_64+0xb8/0x100 arch/x86/entry/common.c:291
entry_SYSCALL_64_after_hwframe+0x63/0xe7
v2:
* Make error message more specific (David)
Fixes: 090096bf3d ("net: generic fdb support for drivers without ndo_fdb_<op>")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-and-tested-by: syzbot+3a288d5f5530b901310e@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+d53ab4e92a1db04110ff@syzkaller.appspotmail.com
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When getting pr_assocstatus and pr_streamstatus by sctp_getsockopt,
it doesn't correctly process the case when policy is set with
SCTP_PR_SCTP_ALL | SCTP_PR_SCTP_MASK. It even causes a
slab-out-of-bounds in sctp_getsockopt_pr_streamstatus().
This patch fixes it by return -EINVAL for this case.
Fixes: 0ac1077e3a ("sctp: get pr_assoc and pr_stream all status with SCTP_PR_SCTP_ALL")
Reported-by: syzbot+5da0d0a72a9e7d791748@syzkaller.appspotmail.com
Suggested-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If a transport is removed by asconf but there still are some chunks with
this transport queuing on out_chunk_list, later an use-after-free issue
will be caused when accessing this transport from these chunks in
sctp_outq_flush().
This is an old bug, we fix it by clearing the transport of these chunks
in out_chunk_list when removing a transport in sctp_assoc_rm_peer().
Reported-by: syzbot+56a40ceee5fb35932f4d@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel says:
====================
mlxsw: Couple of fixes
First patch makes sure mlxsw does not ignore user requests to delete FDB
entries that were learned by the device.
Second patch fixes a use-after-free that can be triggered by requesting
a reload via devlink when the previous reload failed.
Please consider both patches for stable. They apply cleanly to both
4.18.y and 4.19.y.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
After a failed reload, the driver is still registered to devlink, its
devlink instance is still allocated and the 'reload_fail' flag is set.
Then, in the next reload try, the driver's allocated devlink instance will
be freed without unregistering from devlink and its components (e.g,
resources). This scenario can cause a use-after-free if the user tries to
execute command via devlink user-space tool.
Fix by not freeing the devlink instance during reload (failed or not).
Fixes: 24cc68ad6c ("mlxsw: core: Add support for reload")
Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Demands to remove FDB entries should be honored even if the FDB entry in
question was originally learned, and not added by the user. Therefore
ignore the added_by_user datum for SWITCHDEV_FDB_DEL_TO_DEVICE.
Fixes: 816a3bed95 ("switchdev: Add fdb.added_by_user to switchdev notifications")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Suggested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clang warns:
drivers/net/ethernet/huawei/hinic/hinic_tx.c:392:34: error: implicit
conversion from enumeration type 'enum hinic_l4_tunnel_type' to
different enumeration type 'enum hinic_l4_offload_type'
[-Werror,-Wenum-conversion]
hinic_task_set_tunnel_l4(task, TUNNEL_UDP_NO_CSUM,
~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~
1 error generated.
It seems that hinic_task_set_tunnel_l4 was meant to take an enum of type
hinic_l4_tunnel_type, not hinic_l4_offload_type, given both the name of
the functions and the values used.
Fixes: cc18a7543d ("net-next/hinic: add checksum offload and TSO support")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch documents the tcp_fwmark_accept sysctl that was
added in 3.15.
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The attribute IFLA_BOND_AD_ACTOR_SYSTEM is sent to user space having the
length of sizeof(bond->params.ad_actor_system) which is 8 byte. This
patch aligns the length to ETH_ALEN to have the same MAC address exposed
as using sysfs.
Fixes: f87fda00b6 ("bonding: prevent out of bound accesses")
Signed-off-by: Tobias Jungel <tobias.jungel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Similiar with ipv6 mcast commit 89225d1ce6 ("net: ipv6: mld: fix v1/v2
switchback timeout to rfc3810, 9.12.")
i) RFC3376 8.12. Older Version Querier Present Timeout says:
The Older Version Querier Interval is the time-out for transitioning
a host back to IGMPv3 mode once an older version query is heard.
When an older version query is received, hosts set their Older
Version Querier Present Timer to Older Version Querier Interval.
This value MUST be ((the Robustness Variable) times (the Query
Interval in the last Query received)) plus (one Query Response
Interval).
Currently we only use a hardcode value IGMP_V1/v2_ROUTER_PRESENT_TIMEOUT.
Fix it by adding two new items mr_qi(Query Interval) and mr_qri(Query Response
Interval) in struct in_device.
Now we can calculate the switchback time via (mr_qrv * mr_qi) + mr_qri.
We need update these values when receive IGMPv3 queries.
Reported-by: Ying Xu <yinxu@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This section collects all source .note.* sections together in the
vmlinux image. Without it .note.Linux section may be placed at address
0, while the rest of the kernel is at its normal address, resulting in a
huge vmlinux.bin image that may not be linked into the xtensa Image.elf.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This migrates rpmsg_char to use read/write_iter to allow being operated
using aio, removes the message size alignment requirements from glink,
closes a potential memory leak in SMD and switches to %pOFn for printing
device_node names.
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Merge tag 'rpmsg-v4.20' of git://github.com/andersson/remoteproc
Pull rpmsg updates from Bjorn Andersson:
"This migrates rpmsg_char to use read/write_iter to allow being
operated using aio, removes the message size alignment requirements
from glink, closes a potential memory leak in SMD and switches to
%pOFn for printing device_node names"
* tag 'rpmsg-v4.20' of git://github.com/andersson/remoteproc:
rpmsg: glink: smem: Support rx peak for size less than 4 bytes
rpmsg: smd: fix memory leak on channel create
rpmsg: glink: Remove chunk size word align warning
rpmsg: Convert to using %pOFn instead of device_node.name
rpmsg: char: Migrate to iter versions of read and write
This contains a series of patches that reworks the memory carveout
handling in remoteproc, in order to allow this to be reused for
statically allocated memory regions to be used for e.g. firmware.
It adds support for audio DSP (both TZ-assisted and non-TZ assisted) and
compute DSP on Qualcomm SDM845, TZ-assisted audio DSP, compute DSP and
WiFi processor on Qualcomm QCS404 and through some renaming of the
drivers cleans up the naming situation.
Finally support for custom coreudmp segment handlers is added and
is used in the Qualcomm modem remoteproc driver to gather memory dumps
of the firmware.
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Merge tag 'rproc-v4.20' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This contains a series of patches that reworks the memory carveout
handling in remoteproc, in order to allow this to be reused for
statically allocated memory regions to be used for e.g. firmware.
It adds support for audio DSP (both TZ-assisted and non-TZ assisted)
and compute DSP on Qualcomm SDM845, TZ-assisted audio DSP, compute DSP
and WiFi processor on Qualcomm QCS404 and through some renaming of the
drivers cleans up the naming situation.
Finally support for custom coreudmp segment handlers is added and is
used in the Qualcomm modem remoteproc driver to gather memory dumps of
the firmware"
* tag 'rproc-v4.20' of git://github.com/andersson/remoteproc: (36 commits)
remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump
remoteproc: qcom: q6v5-mss: Add custom dump function for modem
remoteproc: qcom: q6v5-mss: Refactor mba load/unload sequence
remoteproc: Add mechanism for custom dump function assignment
remoteproc: Introduce custom dump function for each remoteproc segment
remoteproc: modify vring allocation to rely on centralized carveout allocator
remoteproc: qcom: q6v5: shore up resource probe handling
remoteproc: qcom: qcom_q6v5_adsp: Fix some return value check
remoteproc: modify rproc_handle_carveout to support pre-registered region
remoteproc: add helper function to check carveout device address
remoteproc: add helper function to allocate rproc_mem_entry from reserved memory
remoteproc: add alloc ops in rproc_mem_entry struct
remoteproc: introduce rproc_find_carveout_by_name function
remoteproc: introduce rproc_add_carveout function
remoteproc: add helper function to allocate and init rproc_mem_entry struct
remoteproc: add name in rproc_mem_entry struct
remoteproc: add release ops in rproc_mem_entry struct
remoteproc: add rproc_va_to_pa function
remoteproc: configure IOMMU only if device address requested
remoteproc: qcom: q6v5-mss: add SCM probe dependency
...
Now that the vfs remap helper dirties the inode [cm]time for us, xfs no
longer needs to do that on its own.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Since xfs_file_remap_range is a thin wrapper, move the contents of
xfs_reflink_remap_range into the shell. This cuts down on the vfs
calls being made from internal xfs code.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
