Pull perf fixes from Ingo Molnar:
"Misc race fixes uncovered by fuzzing efforts, a Sparse fix, two PMU
driver fixes, plus miscellanous tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Reject non sampling events with precise_ip
perf/x86/intel: Account interrupts for PEBS errors
perf/core: Fix concurrent sys_perf_event_open() vs. 'move_group' race
perf/core: Fix sys_perf_event_open() vs. hotplug
perf/x86/intel: Use ULL constant to prevent undefined shift behaviour
perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init code
perf/x86: Set pmu->module in Intel PMU modules
perf probe: Fix to probe on gcc generated symbols for offline kernel
perf probe: Fix --funcs to show correct symbols for offline module
perf symbols: Robustify reading of build-id from sysfs
perf tools: Install tools/lib/traceevent plugins with install-bin
tools lib traceevent: Fix prev/next_prio for deadline tasks
perf record: Fix --switch-output documentation and comment
perf record: Make __record_options static
tools lib subcmd: Add OPT_STRING_OPTARG_SET option
perf probe: Fix to get correct modname from elf header
samples/bpf trace_output_user: Remove duplicate sys/ioctl.h include
samples/bpf sock_example: Avoid getting ethhdr from two includes
perf sched timehist: Show total scheduling time
Pull EFI fixes from Ingo Molnar:
"A number of regression fixes:
- Fix a boot hang on machines that have somewhat unusual memory map
entries of phys_addr=0x0 num_pages=0, which broke due to a recent
commit. This commit got cherry-picked from the v4.11 queue because
the bug is affecting real machines.
- Fix a boot hang also reported by KASAN, caused by incorrect init
ordering introduced by a recent optimization.
- Fix a recent robustification fix to allocate_new_fdt_and_exit_boot()
that introduced an invalid assumption. Neither bugs were seen in
the wild AFAIK"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/x86: Prune invalid memory map entries and fix boot regression
x86/efi: Don't allocate memmap through memblock after mm_init()
efi/libstub/arm*: Pass latest memory map to the kernel
Pull vfs fixes from Al Viro.
The most notable fix here is probably the fix for a splice regression
("fix a fencepost error in pipe_advance()") noticed by Alan Wylie.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix a fencepost error in pipe_advance()
coredump: Ensure proper size of sparse core files
aio: fix lock dep warning
tmpfs: clear S_ISGID when setting posix ACLs
Pull block fixes from Jens Axboe:
- the virtio_blk stack DMA corruption fix from Christoph, fixing and
issue with VMAP stacks.
- O_DIRECT blkbits calculation fix from Chandan.
- discard regression fix from Christoph.
- queue init error handling fixes for nbd and virtio_blk, from Omar and
Jeff.
- two small nvme fixes, from Christoph and Guilherme.
- rename of blk_queue_zone_size and bdev_zone_size to _sectors instead,
to more closely follow what we do in other places in the block layer.
This interface is new for this series, so let's get the naming right
before releasing a kernel with this feature. From Damien.
* 'for-linus' of git://git.kernel.dk/linux-block:
block: don't try to discard from __blkdev_issue_zeroout
sd: remove __data_len hack for WRITE SAME
nvme: use blk_rq_payload_bytes
scsi: use blk_rq_payload_bytes
block: add blk_rq_payload_bytes
block: Rename blk_queue_zone_size and bdev_zone_size
nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too
nvme-rdma: fix nvme_rdma_queue_is_ready
virtio_blk: fix panic in initialization error path
nbd: blk_mq_init_queue returns an error code on failure, not NULL
virtio_blk: avoid DMA to stack for the sense buffer
do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned
The logics in pipe_advance() used to release all buffers past the new
position failed in cases when the number of buffers to release was equal
to pipe->buffers. If that happened, none of them had been released,
leaving pipe full. Worse, it was trivial to trigger and we end up with
pipe full of uninitialized pages. IOW, it's an infoleak.
Cc: stable@vger.kernel.org # v4.9
Reported-by: "Alan J. Wylie" <alan@wylie.me.uk>
Tested-by: "Alan J. Wylie" <alan@wylie.me.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
If the last section of a core file ends with an unmapped or zero page,
the size of the file does not correspond with the last dump_skip() call.
gdb complains that the file is truncated and can be confusing to users.
After all of the vma sections are written, make sure that the file size
is no smaller than the current file position.
This problem can be demonstrated with gdb's bigcore testcase on the
sparc architecture.
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
dmaengine fixes for 4.10-rc4
The fixes this time around are spread over drivers, pretty normal update.
o PCI ID for SKL ioatdma, workaround for SKX and ioat_alloc_chan_resources
sleepy allocation fix.
o dw kconfig typo fix
o null pointer deref for stm32
o MAINTAINERS Update for at_hdmac
o pl330 runtime pm fixes
o omap-dma port window fix
o rcar-dmac unmap slave resource fix.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=pJ7d
-----END PGP SIGNATURE-----
Merge tag 'dmaengine-fix-4.10-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"The fixes this time around are spread over drivers, pretty normal
update:
- PCI ID for SKL ioatdma, workaround for SKX and
ioat_alloc_chan_resources sleepy allocation fix
- dw kconfig typo fix
- null pointer deref for stm32
- MAINTAINERS Update for at_hdmac
- pl330 runtime pm fixes
- omap-dma port window fix
- rcar-dmac unmap slave resource fix"
* tag 'dmaengine-fix-4.10-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: rcar-dmac: unmap slave resource when channel is freed
dmaengine: omap-dma: Fix the port_window support
dmaengine: iota: ioat_alloc_chan_resources should not perform sleeping allocations.
dmaengine: pl330: Fix runtime PM support for terminated transfers
MAINTAINERS: dmaengine: Update + Hand over the at_hdmac driver to Ludovic
dmaengine: omap-dma: Fix dynamic lch_map allocation
dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path.
dmaengine: stm32-dma: Fix null pointer dereference in stm32_dma_tx_status
dmaengine: stm32-dma: Set correct args number for DMA request from DT
dmaengine: dw: fix typo in Kconfig
dmaengine: ioatdma: workaround SKX ioatdma version
dmaengine: ioatdma: Add Skylake PCI Dev ID
Some machines, such as the Lenovo ThinkPad W541 with firmware GNET80WW
(2.28), include memory map entries with phys_addr=0x0 and num_pages=0.
These machines fail to boot after the following commit,
commit 8e80632fb2 ("efi/esrt: Use efi_mem_reserve() and avoid a kmalloc()")
Fix this by removing such bogus entries from the memory map.
Furthermore, currently the log output for this case (with efi=debug)
looks like:
[ 0.000000] efi: mem45: [Reserved | | | | | | | | | | | | ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
This is clearly wrong, and also not as informative as it could be. This
patch changes it so that if we find obviously invalid memory map
entries, we print an error and skip those entries. It also detects the
display of the address range calculation overflow, so the new output is:
[ 0.000000] efi: [Firmware Bug]: Invalid EFI memory map entries:
[ 0.000000] efi: mem45: [Reserved | | | | | | | | | | | | ] range=[0x0000000000000000-0x0000000000000000] (invalid)
It also detects memory map sizes that would overflow the physical
address, for example phys_addr=0xfffffffffffff000 and
num_pages=0x0200000000000001, and prints:
[ 0.000000] efi: [Firmware Bug]: Invalid EFI memory map entries:
[ 0.000000] efi: mem45: [Reserved | | | | | | | | | | | | ] range=[phys_addr=0xfffffffffffff000-0x20ffffffffffffffff] (invalid)
It then removes these entries from the memory map.
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[ardb: refactor for clarity with no functional changes, avoid PAGE_SHIFT]
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
[Matt: Include bugzilla info in commit log]
Cc: <stable@vger.kernel.org> # v4.9+
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=191121
Signed-off-by: Ingo Molnar <mingo@kernel.org>
As Peter suggested [1] rejecting non sampling PEBS events,
because they dont make any sense and could cause bugs
in the NMI handler [2].
[1] http://lkml.kernel.org/r/20170103094059.GC3093@worktop
[2] http://lkml.kernel.org/r/1482931866-6018-3-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vince@deater.net>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/20170103142454.GA26251@krava
Signed-off-by: Ingo Molnar <mingo@kernel.org>
It's possible to set up PEBS events to get only errors and not
any data, like on SNB-X (model 45) and IVB-EP (model 62)
via 2 perf commands running simultaneously:
taskset -c 1 ./perf record -c 4 -e branches:pp -j any -C 10
This leads to a soft lock up, because the error path of the
intel_pmu_drain_pebs_nhm() does not account event->hw.interrupt
for error PEBS interrupts, so in case you're getting ONLY
errors you don't have a way to stop the event when it's over
the max_samples_per_tick limit:
NMI watchdog: BUG: soft lockup - CPU#22 stuck for 22s! [perf_fuzzer:5816]
...
RIP: 0010:[<ffffffff81159232>] [<ffffffff81159232>] smp_call_function_single+0xe2/0x140
...
Call Trace:
? trace_hardirqs_on_caller+0xf5/0x1b0
? perf_cgroup_attach+0x70/0x70
perf_install_in_context+0x199/0x1b0
? ctx_resched+0x90/0x90
SYSC_perf_event_open+0x641/0xf90
SyS_perf_event_open+0x9/0x10
do_syscall_64+0x6c/0x1f0
entry_SYSCALL64_slow_path+0x25/0x25
Add perf_event_account_interrupt() which does the interrupt
and frequency checks and call it from intel_pmu_drain_pebs_nhm()'s
error path.
We keep the pending_kill and pending_wakeup logic only in the
__perf_event_overflow() path, because they make sense only if
there's any data to deliver.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vince@deater.net>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1482931866-6018-2-git-send-email-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Di Shen reported a race between two concurrent sys_perf_event_open()
calls where both try and move the same pre-existing software group
into a hardware context.
The problem is exactly that described in commit:
f63a8daa58 ("perf: Fix event->ctx locking")
... where, while we wait for a ctx->mutex acquisition, the event->ctx
relation can have changed under us.
That very same commit failed to recognise sys_perf_event_context() as an
external access vector to the events and thereby didn't apply the
established locking rules correctly.
So while one sys_perf_event_open() call is stuck waiting on
mutex_lock_double(), the other (which owns said locks) moves the group
about. So by the time the former sys_perf_event_open() acquires the
locks, the context we've acquired is stale (and possibly dead).
Apply the established locking rules as per perf_event_ctx_lock_nested()
to the mutex_lock_double() for the 'move_group' case. This obviously means
we need to validate state after we acquire the locks.
Reported-by: Di Shen (Keen Lab)
Tested-by: John Dias <joaodias@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Min Chong <mchong@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Fixes: f63a8daa58 ("perf: Fix event->ctx locking")
Link: http://lkml.kernel.org/r/20170106131444.GZ3174@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
There is problem with installing an event in a task that is 'stuck' on
an offline CPU.
Blocked tasks are not dis-assosciated from offlined CPUs, after all, a
blocked task doesn't run and doesn't require a CPU etc.. Only on
wakeup do we ammend the situation and place the task on a available
CPU.
If we hit such a task with perf_install_in_context() we'll loop until
either that task wakes up or the CPU comes back online, if the task
waking depends on the event being installed, we're stuck.
While looking into this issue, I also spotted another problem, if we
hit a task with perf_install_in_context() that is in the middle of
being migrated, that is we observe the old CPU before sending the IPI,
but run the IPI (on the old CPU) while the task is already running on
the new CPU, things also go sideways.
Rework things to rely on task_curr() -- outside of rq->lock -- which
is rather tricky. Imagine the following scenario where we're trying to
install the first event into our task 't':
CPU0 CPU1 CPU2
(current == t)
t->perf_event_ctxp[] = ctx;
smp_mb();
cpu = task_cpu(t);
switch(t, n);
migrate(t, 2);
switch(p, t);
ctx = t->perf_event_ctxp[]; // must not be NULL
smp_function_call(cpu, ..);
generic_exec_single()
func();
spin_lock(ctx->lock);
if (task_curr(t)) // false
add_event_to_ctx();
spin_unlock(ctx->lock);
perf_event_context_sched_in();
spin_lock(ctx->lock);
// sees event
So its CPU0's store of t->perf_event_ctxp[] that must not go 'missing'.
Because if CPU2's load of that variable were to observe NULL, it would
not try to schedule the ctx and we'd have a task running without its
counter, which would be 'bad'.
As long as we observe !NULL, we'll acquire ctx->lock. If we acquire it
first and not see the event yet, then CPU0 must observe task_curr()
and retry. If the install happens first, then we must see the event on
sched-in and all is well.
I think we can translate the first part (until the 'must not be NULL')
of the scenario to a litmus test like:
C C-peterz
{
}
P0(int *x, int *y)
{
int r1;
WRITE_ONCE(*x, 1);
smp_mb();
r1 = READ_ONCE(*y);
}
P1(int *y, int *z)
{
WRITE_ONCE(*y, 1);
smp_store_release(z, 1);
}
P2(int *x, int *z)
{
int r1;
int r2;
r1 = smp_load_acquire(z);
smp_mb();
r2 = READ_ONCE(*x);
}
exists
(0:r1=0 /\ 2:r1=1 /\ 2:r2=0)
Where:
x is perf_event_ctxp[],
y is our tasks's CPU, and
z is our task being placed on the rq of CPU2.
The P0 smp_mb() is the one added by this patch, ordering the store to
perf_event_ctxp[] from find_get_context() and the load of task_cpu()
in task_function_call().
The smp_store_release/smp_load_acquire model the RCpc locking of the
rq->lock and the smp_mb() of P2 is the context switch switching from
whatever CPU2 was running to our task 't'.
This litmus test evaluates into:
Test C-peterz Allowed
States 7
0:r1=0; 2:r1=0; 2:r2=0;
0:r1=0; 2:r1=0; 2:r2=1;
0:r1=0; 2:r1=1; 2:r2=1;
0:r1=1; 2:r1=0; 2:r2=0;
0:r1=1; 2:r1=0; 2:r2=1;
0:r1=1; 2:r1=1; 2:r2=0;
0:r1=1; 2:r1=1; 2:r2=1;
No
Witnesses
Positive: 0 Negative: 7
Condition exists (0:r1=0 /\ 2:r1=1 /\ 2:r2=0)
Observation C-peterz Never 0 7
Hash=e427f41d9146b2a5445101d3e2fcaa34
And the strong and weak model agree.
Reported-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Will Deacon <will.deacon@arm.com>
Cc: jeremy.linton@arm.com
Link: http://lkml.kernel.org/r/20161209135900.GU3174@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull btrfs fixes from Chris Mason:
"These are all over the place.
The tracepoint part of the pull fixes a crash and adds a little more
information to two tracepoints, while the rest are good old fashioned
fixes"
* 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: make tracepoint format strings more compact
Btrfs: add truncated_len for ordered extent tracepoints
Btrfs: add 'inode' for extent map tracepoint
btrfs: fix crash when tracepoint arguments are freed by wq callbacks
Btrfs: adjust outstanding_extents counter properly when dio write is split
Btrfs: fix lockdep warning about log_mutex
Btrfs: use down_read_nested to make lockdep silent
btrfs: fix locking when we put back a delayed ref that's too new
btrfs: fix error handling when run_delayed_extent_op fails
btrfs: return the actual error value from from btrfs_uuid_tree_iterate
window.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJYeQymAAoJEEp/3jgCEfOLLVsH/28qRsjVPWr5JuL1SF86//kd
rAi7QUfbNgXHqbb10a9za9pNuLhHr3kImIfvQ04wYiYQY+IaAapiRXwQev8BsNAa
yENUc8XwNgydw4FU1ia5PkGOJLDtujtfgjWT2v+gf1HUzLaV6alBzqDwUZBt3xJz
mlYC82oFkXPa0BFmLUXtT/jJu/ZI8caO4KB34/UKi7LjBQk1ca7E2xVUoDtdQmEm
ciPE98akU4JiB99aOgGdwemBzkAMHEGQpImTzqHr/tbIUj0MqVAjH9FVOhRCbjMy
6MSR+U9yUzJkBzefS5enijAoExVc8cD/A0nIaKGVb6qWrIrk51/Opl6iILeVLUo=
=28cq
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-4.10-rc4' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Two small fixups for the filesystem changes that went into this merge
window"
* tag 'ceph-for-4.10-rc4' of git://github.com/ceph/ceph-client:
ceph: fix get_oldest_context()
ceph: fix mds cluster availability check
- Cleanups and bug fixes for the mtty sample driver (Dan Carpenter)
- Export and make use of has_capability() to fix incorrect use of
ns_capable() for testing task capabilities (Jike Song)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)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=yeS9
-----END PGP SIGNATURE-----
Merge tag 'vfio-v4.10-rc4' of git://github.com/awilliam/linux-vfio
Pull VFIO fixes from Alex Williamson:
- Cleanups and bug fixes for the mtty sample driver (Dan Carpenter)
- Export and make use of has_capability() to fix incorrect use of
ns_capable() for testing task capabilities (Jike Song)
* tag 'vfio-v4.10-rc4' of git://github.com/awilliam/linux-vfio:
vfio/type1: Remove pid_namespace.h include
vfio iommu type1: fix the testing of capability for remote task
capability: export has_capability
vfio-mdev: remove some dead code
vfio-mdev: buffer overflow in ioctl()
vfio-mdev: return -EFAULT if copy_to_user() fails
other buggy modules!)
* two NULL pointer dereferences from syzkaller
* CVE from syzkaller, very serious on 4.10-rc, "just" kernel memory
leak on releases
* CVE from security@kernel.org, somewhat serious on AMD, less so on
Intel
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJYd7l5AAoJEL/70l94x66DLWYH/0GUg+lK9J/gj0kwqi6BwsOP
Rrs5Y7XvyNLsy/piBrrHDHvRa+DfAkrU8nepwgygX/yuGmSDV/zmdIb8XA/dvKht
MN285NFlVjTyznYlU/LH3etx11CHLMNclishiFHQbcnohtvhOe+fvN6RVNdfeRxm
d9iBPOum15ikc1xDl2z8Op+ZXVjMxkgLkzIXFcDBpJf4BvUx0X+ZHZXIKdizVhgU
ZMD2ds/MutMB8X1A52qp6kQvT7xE4rp87M0So4qDMTbAto5G4ZmMaWC5MlK2Oxe/
o+3qnx4vVz4H6uYzg1N4diHiC+buhgtXCLwwkcUOKKUVqJRP9e0Bh7kw8JA52XU=
=C+tM
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
- fix for module unload vs deferred jump labels (note: there might be
other buggy modules!)
- two NULL pointer dereferences from syzkaller
- also syzkaller: fix emulation of fxsave/fxrstor/sgdt/sidt, problem
made worse during this merge window, "just" kernel memory leak on
releases
- fix emulation of "mov ss" - somewhat serious on AMD, less so on Intel
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: fix emulation of "MOV SS, null selector"
KVM: x86: fix NULL deref in vcpu_scan_ioapic
KVM: eventfd: fix NULL deref irqbypass consumer
KVM: x86: Introduce segmented_write_std
KVM: x86: flush pending lapic jump label updates on module unload
jump_labels: API for flushing deferred jump label updates
ptes in the contiguous range is changed, not just the last one
- Fix the adr_l assembly macro to work in modules under KASLR
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJYeRmYAAoJEGvWsS0AyF7x6tYQAJd0Rtb88kwalDYb/kMcutBU
3xyjvb8mIEKtnMOP1wS4o3YdqD6ke9OMCUm2EAwhAxgkfzwklsDOOOUlWsDijif2
X3TzYWoKVgoje3oFODXOHMZNLqU6lBmuVN6G4ZdVPsTfvntTLE4cn9q828OgLdtB
L1H+cRkHMhO9w4a0VxZFsNWtSDs4UugGLUp/cNLA4gXFj4atw8+bgX9o7BsmCb1d
x+rd3LDWJb+a1YFKhKJkLQO+uQKk3n7d1WQ0DrQeDBgPs4uzMx422WpfmoW+j/dq
MV/6C8ZYtQczS4BKp8k9apFHq3SC0bZcPLhtXqf/NZZCCLvDKS0iPflDAArYmIHo
mOnmYhw+SeGc0llp9+tDaReco71HAqzdlpYnhGEePDEc0ZXBBr4/xqAwQoY4tgWa
uZLSGZuiGqCFovzLb+LMLEtQlFyu48w+Y4Ct6r0M9gmRmU6d8msoEvXkA2IB/q8z
JGFdFkJ1ZD8MtabRqUzYhuqn7WD+aC5eA3uqImnPjcrqNaYaiSy8Wif6vO+7asz5
1YWyEaLuL9rITllunTQuK0crgZGjplwhGKYASz/w82AZebBeTl84adK/x7jrJgbn
BPxQRHg4LqoX7i6tU3KWc/ulbE8EzOeJabCcKN8HnkPvt2akgKh/nlH3NQVLpG0l
c/ffN90w3+fK7pNQKYnu
=aUnr
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Fix huge_ptep_set_access_flags() to return "changed" when any of the
ptes in the contiguous range is changed, not just the last one
- Fix the adr_l assembly macro to work in modules under KASLR
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: assembler: make adr_l work in modules under KASLR
arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags
Discard can return -EIO asynchronously if the alignment for the request
isn't suitable for the driver, which makes a proper fallback to other
methods in __blkdev_issue_zeroout impossible. Thus only issue a sync
discard from blkdev_issue_zeroout an don't try discard at all from
__blkdev_issue_zeroout as a non-invasive workaround.
One more reason why abusing discard for zeroing must die..
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Eryu Guan <eguan@redhat.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Signed-off-by: Jens Axboe <axboe@fb.com>
Now that we have the blk_rq_payload_bytes helper available to determine
the actual I/O size we don't need to mess around with __data_len for
WRITE SAME.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
The new blk_rq_payload_bytes generalizes the payload length hacks
that nvme_map_len did before.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Without that we'll pass a wrong payload size in cmd->sdb, which
can lead to hangs with drivers that need the total transfer size.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Chris Valean <v-chvale@microsoft.com>
Reported-by: Dexuan Cui <decui@microsoft.com>
Fixes: f9d03f96 ("block: improve handling of the magic discard payload")
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Add a helper to calculate the actual data transfer size for special
payload requests.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
The major fix is the bfa firmware, since the latest 10Gb cards fail
probing with the current firmware. The rest is a set of minor fixes:
one missed Kconfig dependency causing randconfig failures, a missed
error return on an error leg, a change for how multiqueue waits on a
blocked device and a don't reset while in reset fix.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQIcBAABAgAGBQJYeOuBAAoJEAVr7HOZEZN4TxEP/j3nlFKrs7XEhlbbZrezyHkA
RvEWAkpoSXpQiVvuqHcObOX5Jh9I8ndBMRh2MyS2zLV4PA4SzwrprgemaB5rL9+j
+5IIw7MdHY5SHP0IrvpTae+c1kOnHRfSdsLORqohB9uhqJiSbwhXgV0Q19hRzttA
qmjD5RBI4sY3a+/CjGQevaM2Y/WQqCp4+J5kvclr3AmEoTjMkAiOsjbSuclFHWX9
CxNKSMv/6z34ZgqS0FgqCrCAI5kO5UHrjznslcEtgVECIOTrNer3g5e75DhQOcD6
Mhklxbx1dfG9r3h3oush8Zy9IIJoXZFZLRNmhhX7zcKkuYUaR9LU2COUVCTOEE+s
SAtp4qdXxCZ8sFyHS+E9ajTYSeTw05fmGEbAu1dqJ8FUxkRnvsWouCiw/TI+ps94
mJSiS2UGHAYxpLdWFbnKC+2CaCG32ygXINUcZbIItmT2cdA+ERAPAO6tDegjgb0S
MoeRxAlUGfUehHReCppRV3igwjtw2vtQaY5hFq1+v8n00Ezt6kDNeeTanqobMrHr
71rOZAos9aT5wa39pmbW18M3pfUB1qeuGn6di4ArYk8f9ILAMI4qykvnDHH3INcn
BdCIY3SgRo/Zq+87vFWZr+56CcbVqq0GV38FKoRZcHglyOjDw8ibQY6elcsjBtJC
S1Z5wlkv1T9tfA+8mRX6
=kjPw
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"The major fix is the bfa firmware, since the latest 10Gb cards fail
probing with the current firmware.
The rest is a set of minor fixes: one missed Kconfig dependency
causing randconfig failures, a missed error return on an error leg, a
change for how multiqueue waits on a blocked device and a don't reset
while in reset fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: bfa: Increase requested firmware version to 3.2.5.1
scsi: snic: Return error code on memory allocation failure
scsi: fnic: Avoid sending reset to firmware when another reset is in progress
scsi: qedi: fix build, depends on UIO
scsi: scsi-mq: Wait for .queue_rq() if necessary
Pull input updates from Dmitry Torokhov:
"Small driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
Input: adxl34x - make it enumerable in ACPI environment
Input: ALPS - fix TrackStick Y axis handling for SS5 hardware
Input: synaptics-rmi4 - fix F03 build error when serio is module
Input: xpad - use correct product id for x360w controllers
Input: synaptics_i2c - change msleep to usleep_range for small msecs
Input: i8042 - add Pegatron touchpad to noloop table
Input: joydev - remove unused linux/miscdevice.h include
Using has_capability() rather than ns_capable(), we're no longer using
this header.
Cc: Jike Song <jike.song@intel.com>
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
The slave mapping should be removed together with other channel
resources when the channel is freed. If it's not unmapped it will hang
around forever after the channel is freed.
Fixes: 9f878603db ("dmaengine: rcar-dmac: add iommu support for slave transfers")
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Before the mdev enhancement type1 iommu used capable() to test the
capability of current task; in the course of mdev development a
new requirement, testing for another task other than current, was
raised. ns_capable() was used for this purpose, however it still
tests current, the only difference is, in a specified namespace.
Fix it by using has_capability() instead, which tests the cap for
specified task in init_user_ns, the same namespace as capable().
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Jike Song <jike.song@intel.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This time we got a few more fixes than the previous rc's, and the most
of commits were about ASoC. The only significant change in the core
side is the regression fix wrt the aux device list handling, and all
the rest are driver-specific small / trivial fixes.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=gGt3
-----END PGP SIGNATURE-----
Merge tag 'sound-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This time we got a few more fixes than the previous rc's, and most of
commits were about ASoC.
The only significant change in the core side is the regression fix wrt
the aux device list handling, and all the rest are driver-specific
small / trivial fixes"
* tag 'sound-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Add a quirk for Plantronics BT600
ASoC: rt5645: set sel_i2s_pre_div1 to 2
ASoC: dpcm: Avoid putting stream state to STOP when FE stream is paused
ASoC: Intel: Skylake: Release FW ctx in cleanup
ASoC: Intel: bytcr-rt5640: fix settings in internal clock mode
ASoC: fsl_ssi: set fifo watermark to more reliable value
ASoC: nau8825: fix invalid configuration in Pre-Scalar of FLL
ASoC: nau8825: correct the function name of register
ASoC: Intel: Skylake: Fix to fail safely if module not available in path
ASoC: tlv320aic3x: Mark the RESET register as volatile
ASoC: Fix binding and probing of auxiliary components
ASoC: wm_adsp: Don't overrun firmware file buffer when reading region data
ASoC: Intel: bytcr_rt5640: fallback mechanism if MCLK is not enabled
ASoC: hdmi-codec: use unsigned type to structure members with bit-field
ASoC: topology: kfree kcontrol->private_value before freeing kcontrol
ASoC: rsnd: don't double free kctrl
ASoC: dwc: Fix PIO mode initialization
- Fix free space request handling when low on disk space
- Remove redundant log failure error messages
- Free truncate dirty pages instead of letting them build up forever
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=8bsr
-----END PGP SIGNATURE-----
Merge tag 'xfs-for-linus-4.10-rc4-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"As promised last week, here's some stability fixes from Christoph and
Jan Kara:
- fix free space request handling when low on disk space
- remove redundant log failure error messages
- free truncated dirty pages instead of letting them build up
forever"
* tag 'xfs-for-linus-4.10-rc4-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Timely free truncated dirty pages
xfs: don't print warnings when xfs_log_force fails
xfs: don't rely on ->total in xfs_alloc_space_available
xfs: adjust allocation length in xfs_alloc_space_available
xfs: fix bogus minleft manipulations
xfs: bump up reserved blocks in xfs_alloc_set_aside
This fixes two regressions that has been reported to be introduced in
v4.10-rc1.
* The first fix corrects an incorrect usage of the kref api.
* The second reverts the change to make the resource table read-only. As the
space each vdev resource is used as virtio device config space it must be
shared with the remote.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=GUNc
-----END PGP SIGNATURE-----
Merge tag 'rproc-v4.10-fixes' of git://github.com/andersson/remoteproc
Pull remoteproc fixes from Bjorn Andersson:
"This fixes two regressions that have been reported to be introduced in
v4.10-rc1.
- correct an incorrect usage of the kref api
- revert the change to make the resource table read-only. As the
space each vdev resource is used as virtio device config space it
must be shared with the remote"
* tag 'rproc-v4.10-fixes' of git://github.com/andersson/remoteproc:
Revert "remoteproc: Merge table_ptr and cached_table pointers"
remoteproc: fix vdev reference management
This fixes a regression introduced in v4.10-rc1 that prohibits multiple
channels with the same name but different endpoint addresses to be used.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=xcek
-----END PGP SIGNATURE-----
Merge tag 'rpmsg-v4.10-fixes' of git://github.com/andersson/remoteproc
Pull rpmsg fixes from Bjorn Andersson:
"This fixes a regression introduced in v4.10-rc1 that prohibits
multiple channels with the same name but different endpoint addresses
to be used"
* tag 'rpmsg-v4.10-fixes' of git://github.com/andersson/remoteproc:
rpmsg: virtio_rpmsg_bus: fix channel creation
Pull HID fixes from Jiri Kosina:
- device descriptor length validation fix to hid-cypress driver from
Greg
- introduction of a short delay into i2c-hid, which is not really
mandated by the spec, but fixes Asus Touchpads
- Petzl USB connectable flashlight quirk from myself
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: i2c-hid: Add sleep between POWER ON and RESET
HID: hid-cypress: validate length of report
HID: ignore Petzl USB headlamp
Pull scsi target fixes from Bart Van Assche:
- a series of bug fixes for the XCOPY implementation from David
Disseldorp
- one bug fix for the ibmvscsis driver, a driver that is used for
communication between partitions on IBM POWER systems.
* 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
ibmvscsis: Fix srp_transfer_data fail return code
target: support XCOPY requests without parameters
target: check for XCOPY parameter truncation
target: use XCOPY segment descriptor CSCD IDs
target: check XCOPY segment descriptor CSCD IDs
target: simplify XCOPY wwn->se_dev lookup helper
target: return UNSUPPORTED TARGET/SEGMENT DESC TYPE CODE sense
target: bounds check XCOPY total descriptor list length
target: bounds check XCOPY segment descriptor list
target: use XCOPY TOO MANY TARGET DESCRIPTORS sense
target: add XCOPY target/segment desc sense codes
For no snapshot case, we should use ci->truncate_{seq,size}.
Fixes: 5f743e4566 ("ceph: record truncate size/seq for snap data writeback")
Signed-off-by: Geng, Jichao <geng.jichao@h3c.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
We should apply the check after getting the initial mdsmap.
Fixes: e9e427f0a1 ("ceph: check availability of mds cluster on mount")
Link: http://tracker.ceph.com/issues/18161
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Pull md fixes from Shaohua Li:
"Basically one fix for raid5 cache which is merged in this cycle,
others are trival fixes"
* tag 'md/4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md/raid5: Use correct IS_ERR() variation on pointer check
md: cleanup mddev flag clear for takeover
md/r5cache: fix spelling mistake on "recoverying"
md/r5cache: assign conf->log before r5l_load_log()
md/r5cache: simplify handling of sh->log_start in recovery
md/raid5-cache: removes unnecessary write-through mode judgments
md/raid10: Refactor raid10_make_request
md/raid1: Refactor raid1_make_request
When CONFIG_RANDOMIZE_MODULE_REGION_FULL=y, the offset between loaded
modules and the core kernel may exceed 4 GB, putting symbols exported
by the core kernel out of the reach of the ordinary adrp/add instruction
pairs used to generate relative symbol references. So make the adr_l
macro emit a movz/movk sequence instead when executing in module context.
While at it, remove the pointless special case for the stack pointer.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
All block device data fields and functions returning a number of 512B
sectors are by convention named xxx_sectors while names in the form
xxx_size are generally used for a number of bytes. The blk_queue_zone_size
and bdev_zone_size functions were not following this convention so rename
them.
No functional change is introduced by this patch.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Collapsed the two patches, they were nonsensically split and broke
bisection.
Signed-off-by: Jens Axboe <axboe@fb.com>
This is CVE-2017-2583. On Intel this causes a failed vmentry because
SS's type is neither 3 nor 7 (even though the manual says this check is
only done for usable SS, and the dmesg splat says that SS is unusable!).
On AMD it's worse: svm.c is confused and sets CPL to 0 in the vmcb.
The fix fabricates a data segment descriptor when SS is set to a null
selector, so that CPL and SS.DPL are set correctly in the VMCS/vmcb.
Furthermore, only allow setting SS to a NULL selector if SS.RPL < 3;
this in turn ensures CPL < 3 because RPL must be equal to CPL.
Thanks to Andy Lutomirski and Willy Tarreau for help in analyzing
the bug and deciphering the manuals.
Reported-by: Xiaohan Zhang <zhangxiaohan1@huawei.com>
Fixes: 79d5b4c3cd
Cc: stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
has_capability() is sometimes needed by modules to test capability
for specified task other than current, so export it.
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Jike Song <jike.song@intel.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reported syzkaller:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: irq_bypass_unregister_consumer+0x9d/0xb70 [irqbypass]
PGD 0
Oops: 0002 [#1] SMP
CPU: 1 PID: 125 Comm: kworker/1:1 Not tainted 4.9.0+ #1
Workqueue: kvm-irqfd-cleanup irqfd_shutdown [kvm]
task: ffff9bbe0dfbb900 task.stack: ffffb61802014000
RIP: 0010:irq_bypass_unregister_consumer+0x9d/0xb70 [irqbypass]
Call Trace:
irqfd_shutdown+0x66/0xa0 [kvm]
process_one_work+0x16b/0x480
worker_thread+0x4b/0x500
kthread+0x101/0x140
? process_one_work+0x480/0x480
? kthread_create_on_node+0x60/0x60
ret_from_fork+0x25/0x30
RIP: irq_bypass_unregister_consumer+0x9d/0xb70 [irqbypass] RSP: ffffb61802017e20
CR2: 0000000000000008
The syzkaller folks reported a NULL pointer dereference that due to
unregister an consumer which fails registration before. The syzkaller
creates two VMs w/ an equal eventfd occasionally. So the second VM
fails to register an irqbypass consumer. It will make irqfd as inactive
and queue an workqueue work to shutdown irqfd and unregister the irqbypass
consumer when eventfd is closed. However, the second consumer has been
initialized though it fails registration. So the token(same as the first
VM's) is taken to unregister the consumer through the workqueue, the
consumer of the first VM is found and unregistered, then NULL deref incurred
in the path of deleting consumer from the consumers list.
This patch fixes it by making irq_bypass_register/unregister_consumer()
looks for the consumer entry based on consumer pointer itself instead of
token matching.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Cc: stable@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Introduces segemented_write_std.
Switches from emulated reads/writes to standard read/writes in fxsave,
fxrstor, sgdt, and sidt. This fixes CVE-2017-2584, a longstanding
kernel memory leak.
Since commit 283c95d0e3 ("KVM: x86: emulate FXSAVE and FXRSTOR",
2016-11-09), which is luckily not yet in any final release, this would
also be an exploitable kernel memory *write*!
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: stable@vger.kernel.org
Fixes: 96051572c8
Fixes: 283c95d0e3
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Steve Rutherford <srutherford@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
KVM's lapic emulation uses static_key_deferred (apic_{hw,sw}_disabled).
These are implemented with delayed_work structs which can still be
pending when the KVM module is unloaded. We've seen this cause kernel
panics when the kvm_intel module is quickly reloaded.
Use the new static_key_deferred_flush() API to flush pending updates on
module unload.
Signed-off-by: David Matlack <dmatlack@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Modules that use static_key_deferred need a way to synchronize with
any delayed work that is still pending when the module is unloaded.
Introduce static_key_deferred_flush() which flushes any pending
jump label updates.
Signed-off-by: David Matlack <dmatlack@google.com>
Cc: stable@vger.kernel.org
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Support for the Asus Touchpad was recently added. It turns out this
device can fail initialisation (and become unusable) when the RESET
command is sent too soon after the POWER ON command.
Unfortunately the i2c-hid specification does not specify the need for
a delay between these two commands. But it was discovered the Windows
driver has a 1ms delay.
As a result, this patch modifies the i2c-hid module to add a sleep
inbetween the POWER ON and RESET commands which lasts between 1ms and 5ms.
See https://github.com/vlasenko/hid-asus-dkms/issues/24 for further
details.
Signed-off-by: Brendan McGrath <redmcg@redmandi.dyndns.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Merge fixes from Andrew Morton:
"27 fixes.
There are three patches that aren't actually fixes. They're simple
function renamings which are nice-to-have in mainline as ongoing net
development depends on them."
* akpm: (27 commits)
timerfd: export defines to userspace
mm/hugetlb.c: fix reservation race when freeing surplus pages
mm/slab.c: fix SLAB freelist randomization duplicate entries
zram: support BDI_CAP_STABLE_WRITES
zram: revalidate disk under init_lock
mm: support anonymous stable page
mm: add documentation for page fragment APIs
mm: rename __page_frag functions to __page_frag_cache, drop order from drain
mm: rename __alloc_page_frag to page_frag_alloc and __free_page_frag to page_frag_free
mm, memcg: fix the active list aging for lowmem requests when memcg is enabled
mm: don't dereference struct page fields of invalid pages
mailmap: add codeaurora.org names for nameless email commits
signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
mm: pmd dirty emulation in page fault handler
ipc/sem.c: fix incorrect sem_lock pairing
lib/Kconfig.debug: fix frv build failure
mm: get rid of __GFP_OTHER_NODE
mm: fix remote numa hits statistics
mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}
ocfs2: fix crash caused by stale lvb with fsdlm plugin
...
We set info.count to 1 in mtty_get_irq_info() so static checkers
complain that, "Why do we have impossible conditions?" The answer is
that it seems to be left over dead code that can be safely removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This is a sample driver for documentation so the impact is probably
pretty low. But we should check that bar_index is valid so we
don't write beyond the end of the mdev_state->region_info[] array.
Fixes: 9d1a546c53 ("docs: Sample driver to demonstrate how to use Mediated device framework.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
