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Free useless ucode_patch entry when it's replaced.
[ bp: Drop the memfree_patch() two-liner. ]
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Srinivas REDDY Eeda <srinivas.eeda@oracle.com>
Link: http://lkml.kernel.org/r/888102f0-fd22-459d-b090-a1bd8a00cb2b@default
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Some injection testing resulted in the following console log:
mce: [Hardware Error]: CPU 22: Machine Check Exception: f Bank 1: bd80000000100134
mce: [Hardware Error]: RIP 10:<ffffffffc05292dd> {pmem_do_bvec+0x11d/0x330 [nd_pmem]}
mce: [Hardware Error]: TSC c51a63035d52 ADDR 3234bc4000 MISC 88
mce: [Hardware Error]: PROCESSOR 0:50654 TIME 1526502199 SOCKET 0 APIC 38 microcode 2000043
mce: [Hardware Error]: Run the above through 'mcelog --ascii'
Kernel panic - not syncing: Machine check from unknown source
This confused everybody because the first line quite clearly shows
that we found a logged error in "Bank 1", while the last line says
"unknown source".
The problem is that the Linux code doesn't do the right thing
for a local machine check that results in a fatal error.
It turns out that we know very early in the handler whether the
machine check is fatal. The call to mce_no_way_out() has checked
all the banks for the CPU that took the local machine check. If
it says we must crash, we can do so right away with the right
messages.
We do scan all the banks again. This means that we might initially
not see a problem, but during the second scan find something fatal.
If this happens we print a slightly different message (so I can
see if it actually every happens).
[ bp: Remove unneeded severity assignment. ]
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: stable@vger.kernel.org # 4.2
Link: http://lkml.kernel.org/r/52e049a497e86fd0b71c529651def8871c804df0.1527283897.git.tony.luck@intel.com
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mce_no_way_out() does a quick check during #MC to see whether some of
the MCEs logged would require the kernel to panic immediately. And it
passes a struct mce where MCi_STATUS gets written.
However, after having saved a valid status value, the next iteration
of the loop which goes over the MCA banks on the CPU, overwrites the
valid status value because we're using struct mce as storage instead of
a temporary variable.
Which leads to MCE records with an empty status value:
mce: [Hardware Error]: CPU 0: Machine Check Exception: 6 Bank 0: 0000000000000000
mce: [Hardware Error]: RIP 10:<ffffffffbd42fbd7> {trigger_mce+0x7/0x10}
In order to prevent the loss of the status register value, return
immediately when severity is a panic one so that we can panic
immediately with the first fatal MCE logged. This is also the intention
of this function and not to noodle over the banks while a fatal MCE is
already logged.
Tony: read the rest of the MCA bank to populate the struct mce fully.
Suggested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20180622095428.626-8-bp@alien8.de
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Function irq_desc_get_msi_desc() is not referenced in the kernel (and does
not seem to have been referenced since e39758e0ea76, 3 years ago), so
delete it.
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <marc.zyngier@arm.com>
Cc: <will.deacon@arm.com>
Cc: <kstewart@linuxfoundation.org>
Cc: <julien.thierry@arm.com>
Cc: <andrew@lunn.ch>
Cc: <trivial@kernel.org>
Link: https://lkml.kernel.org/r/1529667333-92959-1-git-send-email-john.garry@huawei.com
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Enabling LPIs was made a lot stricter recently, by checking that they are
disabled before enabling them. By doing so, the CPU hotplug case was missed
altogether, which leaves LPIs enabled on hotplug off (expecting the CPU to
eventually come back), and won't write a different value anyway on hotplug
on.
So skip that check if that particular case is detected
Fixes: 6eb486b66a30 ("irqchip/gic-v3: Ensure GICR_CTLR.EnableLPI=0 is observed before enabling")
Reported-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lkml.kernel.org/r/20180622095254.5906-8-marc.zyngier@arm.com
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Similarily to the SYNC operation, it must be verified that the VPE
targetted by a VLPI is backed by a valid collection in the GIC driver data
structures.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-7-marc.zyngier@arm.com
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It is possible, under obscure circumstances, to convince the ITS driver to
emit a SYNC operation that targets a collection that is not bound to any
redistributor (and the target_address field is zero) because the
corresponding CPU has not been seen yet (the system has been booted with
max_cpus="something small").
If the ITS is using the linear CPU number as the target, this is not a big
deal, as we just end-up issuing a SYNC to CPU0. But if the ITS requires the
physical address of the redistributor (with GITS_TYPER.PTA==1), we end-up
asking the ITS to write to the physical address zero, which is not exactly
a good idea (there has been report of the ITS locking up). This should of
course never happen, but hey, this is SW...
In order to avoid the above disaster, let's track which collections have
been actually initialized, and let's not generate a SYNC if the collection
hasn't been properly bound to a redistributor. Take this opportunity to
spit our a warning, in the hope that someone may report the issue if it
arrises again.
Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-6-marc.zyngier@arm.com
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On a NUMA system, if an ITS is local to an offline node, the ITS driver may
pick an offline CPU to bind the LPI. In this case, pick an online CPU (and
the first one will do).
But on some systems, binding an LPI to non-local node CPU may cause
deadlock (see Cavium erratum 23144). In this case, just fail the activate
and return an error code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180622095254.5906-5-marc.zyngier@arm.com
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On failing to allocate the required SPIs, the actual number of interrupts
should be freed and not its log2 value.
Fixes: de337ee30142 ("irqchip/gic-v2m: Add PCI Multi-MSI support")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-4-marc.zyngier@arm.com
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The ls-scfs-msi driver is not dealing with the effective affinity
as it should. Let's fix that, and make it clear that the effective
affinity is restricted to a single CPU. Also prevent the driver from
messing with the internals of the affinity setting infrastructure.
Reported-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-3-marc.zyngier@arm.com
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Debug is missing the IRQCHIP_SUPPORTS_LEVEL_MSI debug entry, making debugfs
slightly less useful.
Take this opportunity to also add a missing comment in the definition of
IRQCHIP_SUPPORTS_LEVEL_MSI.
Fixes: 6988e0e0d283 ("genirq/msi: Limit level-triggered MSI to platform devices")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-2-marc.zyngier@arm.com
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If we failed during a rename exchange operation after starting/joining a
transaction, we would end up replacing the return value, stored in the
local 'ret' variable, with the return value from btrfs_end_transaction().
So this could end up returning 0 (success) to user space despite the
operation having failed and aborted the transaction, because if there are
multiple tasks having a reference on the transaction at the time
btrfs_end_transaction() is called by the rename exchange, that function
returns 0 (otherwise it returns -EIO and not the original error value).
So fix this by not overwriting the return value on error after getting
a transaction handle.
Fixes: cdd1fedf8261 ("btrfs: add support for RENAME_EXCHANGE and RENAME_WHITEOUT")
CC: stable@vger.kernel.org # 4.9+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Fujitsu Seimens ESPRIMO Mobile U9210 requires the same fixup as H270
for the correct pin configs.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200107
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When building perf with W=1 the following warning triggers:
CC kernel/events/ring_buffer.o
kernel/events/ring_buffer.c:105:1: warning: ‘inline’ is not at beginning of declaration [-Wold-style-declaration]
static bool __always_inline
^~~~~~
...
Move the inline keyword to the beginning of the function declaration.
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: trival@kernel.org
Link: http://lkml.kernel.org/r/20180308202856.9378-1-malat@debian.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull udf, quota, ext2 fixes from Jan Kara:
"UDF:
- fix an oops due to corrupted disk image
- two small cleanups
quota:
- a fixfor lru handling
- cleanup
ext2:
- a warning about a deprecated mount option"
* tag 'for_v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Drop unused arguments of udf_delete_aext()
udf: Provide function for calculating dir entry length
udf: Detect incorrect directory size
ext2: add warning when specifying nocheck option
quota: Cleanup list iteration in dqcache_shrink_scan()
quota: reclaim least recently used dquots
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Commit:
79832f0b5f71 ("efi/libstub/tpm: Initialize pointer variables to zero for mixed mode")
fixes a problem with the tpm code on mixed mode (64-bit kernel on 32-bit UEFI),
where 64-bit pointer variables are not fully initialized by the 32-bit EFI code.
A similar problem applies to the efi_physical_addr_t variables which
are written by the ->get_event_log() EFI call. Even though efi_physical_addr_t
is 64-bit everywhere, it seems that some 32-bit UEFI implementations only
fill in the lower 32 bits when passed a pointer to an efi_physical_addr_t
to fill.
This commit initializes these to 0 to, to ensure the upper 32 bits are
0 in mixed mode. This fixes recent kernels sometimes hanging during
early boot on mixed mode UEFI systems.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org> # v4.16+
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20180622064222.11633-2-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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With gcc 4.1.2 when compiling for 32-bit:
drivers/mtd/devices/mtd_dataflash.c:736: warning: integer constant is too large for ‘long’ type
drivers/mtd/devices/mtd_dataflash.c:737: warning: integer constant is too large for ‘long’ type
Add the missing "ULL" suffixes to fix this.
Fixes: 67e4145ebf2c161d ("mtd: dataflash: Add flash_info for AT45DB641E")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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cfi_ppb_unlock() walks all flash chips when unlocking sectors,
avoid walking chips unaffected by the unlock operation.
Fixes: 1648eaaa1575 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking")
Cc: stable@vger.kernel.org
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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Commit 910f8befdf5b ("xen/pirq: fix error path cleanup when binding
MSIs") fixed a couple of errors in error cleanup path of
xen_bind_pirq_msi_to_irq(). This cleanup allowed a call to
__unbind_from_irq() with an unbound irq, which would result in
triggering the BUG_ON there.
Since there is really no reason for the BUG_ON (xen_free_irq() can
operate on unbound irqs) we can remove it.
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When a corrupt inode is detected during xfs_iflush_cluster, we can
get a shutdown ASSERT failure like this:
XFS (pmem1): Metadata corruption detected at xfs_symlink_shortform_verify+0x5c/0xa0, inode 0x86627 data fork
XFS (pmem1): Unmount and run xfs_repair
XFS (pmem1): xfs_do_force_shutdown(0x8) called from line 3372 of file fs/xfs/xfs_inode.c. Return address = ffffffff814f4116
XFS (pmem1): Corruption of in-memory data detected. Shutting down filesystem
XFS (pmem1): xfs_do_force_shutdown(0x1) called from line 222 of file fs/xfs/libxfs/xfs_defer.c. Return address = ffffffff814a8a88
XFS (pmem1): xfs_do_force_shutdown(0x1) called from line 222 of file fs/xfs/libxfs/xfs_defer.c. Return address = ffffffff814a8ef9
XFS (pmem1): Please umount the filesystem and rectify the problem(s)
XFS: Assertion failed: xfs_isiflocked(ip), file: fs/xfs/xfs_inode.h, line: 258
.....
Call Trace:
xfs_iflush_abort+0x10a/0x110
xfs_iflush+0xf3/0x390
xfs_inode_item_push+0x126/0x1e0
xfsaild+0x2c5/0x890
kthread+0x11c/0x140
ret_from_fork+0x24/0x30
Essentially, xfs_iflush_abort() has been called twice on the
original inode that that was flushed. This happens because the
inode has been flushed to teh buffer successfully via
xfs_iflush_int(), and so when another inode is detected as corrupt
in xfs_iflush_cluster, the buffer is marked stale and EIO, and
iodone callbacks are run on it.
Running the iodone callbacks walks across the original inode and
calls xfs_iflush_abort() on it. When xfs_iflush_cluster() returns
to xfs_iflush(), it runs the error path for that function, and that
calls xfs_iflush_abort() on the inode a second time, leading to the
above assert failure as the inode is not flush locked anymore.
This bug has been there a long time.
The simple fix would be to just avoid calling xfs_iflush_abort() in
xfs_iflush() if we've got a failure from xfs_iflush_cluster().
However, xfs_iflush_cluster() has magic delwri buffer handling that
means it may or may not have run IO completion on the buffer, and
hence sometimes we have to call xfs_iflush_abort() from
xfs_iflush(), and sometimes we shouldn't.
After reading through all the error paths and the delwri buffer
code, it's clear that the error handling in xfs_iflush_cluster() is
unnecessary. If the buffer is delwri, it leaves it on the delwri
list so that when the delwri list is submitted it sees a shutdown
fliesystem in xfs_buf_submit() and that marks the buffer stale, EIO
and runs IO completion. i.e. exactly what xfs+iflush_cluster() does
when it's not a delwri buffer. Further, marking a buffer stale
clears the _XBF_DELWRI_Q flag on the buffer, which means when
submission of the buffer occurs, it just skips over it and releases
it.
IOWs, the error handling in xfs_iflush_cluster doesn't need to care
if the buffer is already on a the delwri queue or not - it just
needs to mark the buffer stale, EIO and run completions. That means
we can just use the easy fix for xfs_iflush() to avoid the double
abort.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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For passing arbitrary data from user land to the Xen hypervisor the
Xen tools today are using mlock()ed buffers. Unfortunately the kernel
might change access rights of such buffers for brief periods of time
e.g. for page migration or compaction, leading to access faults in the
hypervisor, as the hypervisor can't use the locks of the kernel.
In order to solve this problem add a new device node to the Xen privcmd
driver to easily allocate hypercall buffers via mmap(). The memory is
allocated in the kernel and just mapped into user space. Marked as
VM_IO the user mapping will not be subject to page migration et al.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When the inode is in extent format, it can't have more extents that
fit in the inode fork. We don't currenty check this, and so this
corruption goes unnoticed by the inode verifiers. This can lead to
crashes operating on invalid in-memory structures.
Attempts to access such a inode will now error out in the verifier
rather than allowing modification operations to proceed.
Reported-by: Wen Xu <wen.xu@gatech.edu>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
[darrick: fix a typedef, add some braces and breaks to shut up compiler warnings]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Instead of using xfs_bmapi_read to find delalloc extents and then punch
them out using xfs_bunmapi, opencode the loop to iterate over the extents
and call xfs_bmap_del_extent_delay directly. This both simplifies the
code and reduces the number of extent tree lookups required.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Pull drm fixes from Dave Airlie:
"Just run of the mill fixes,
core:
- regression fix in device unplug
qxl:
- regression fix for might sleep in cursor handling
nouveau:
- regression fix in multi-screen cursor handling
amdgpu:
- switch off DC by default on Kaveri and older
- some minor fixes
i915:
- some GEM regression fixes
- doublescan mode fixes
sun4i:
- revert fix for a regression
sii8620 bridge:
- misc fixes"
* tag 'drm-fixes-2018-06-22' of git://anongit.freedesktop.org/drm/drm: (28 commits)
drm/bridge/sii8620: fix display of packed pixel modes in MHL2
drm/amdgpu: Make amdgpu_vram_mgr_bo_invisible_size always accurate
drm/amdgpu: Refactor amdgpu_vram_mgr_bo_invisible_size helper
drm/amdgpu: Update pin_size values before unpinning BO
drm/amdgpu:All UVD instances share one idle_work handle
drm/amdgpu: Don't default to DC support for Kaveri and older
drm/amdgpu: Use kvmalloc_array for allocating VRAM manager nodes array
drm/amd/pp: Fix uninitialized variable
drm/i915: Enable provoking vertex fix on Gen9 systems.
drm/i915: Fix context ban and hang accounting for client
drm/i915: Turn off g4x DP port in .post_disable()
drm/i915: Disallow interlaced modes on g4x DP outputs
drm/i915: Fix PIPESTAT irq ack on i965/g4x
drm/i915: Allow DBLSCAN user modes with eDP/LVDS/DSI
drm/i915/execlists: Avoid putting the error pointer
drm/i915: Apply batch location restrictions before pinning
drm/nouveau/kms/nv50-: cursors always use core channel vram ctxdma
Revert "drm/sun4i: Handle DRM_BUS_FLAG_PIXDATA_*EDGE"
drm/atmel-hlcdc: check stride values in the first plane
drm/bridge/sii8620: fix HDMI cable connection to dongle
...
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One of my tests compiles the kernel with gcc 4.5.3, and I hit the
following build error:
include/linux/semaphore.h: In function 'sema_init':
include/linux/semaphore.h:35:17: error: unknown field 'val' specified in initializer
include/linux/semaphore.h:35:17: warning: missing braces around initializer
include/linux/semaphore.h:35:17: warning: (near initialization for '(anonymous).raw_lock.<anonymous>.val')
I bisected it down to:
625e88be1f41 ("locking/qspinlock: Merge 'struct __qspinlock' into 'struct qspinlock'")
... which makes qspinlock have an anonymous union, which makes initializing it special
for older compilers. By adding strategic brackets, it makes the build
happy again.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Waiman Long <longman@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Fixes: 625e88be1f41 ("locking/qspinlock: Merge 'struct __qspinlock' into 'struct qspinlock'")
Link: http://lkml.kernel.org/r/20180621203526.172ab5c4@vmware.local.home
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v4.18-rc2:
- A reversion of a commit in drm/sun4i to fix a run-time fault.
- Various fixes to the sii8620 bridge.
- Small bugfix to correctly check stride in atmel-hlcdc.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/787d4bef-a579-4046-d0fc-f8c2c5b80c25@linux.intel.com
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The dst_cid and src_cid are 64 bits, therefore 64 bit accessors should be
used, and in fact in virtio_transport_common.c only 64 bit accessors are
used. Using 32 bit accessors for 64 bit values breaks big endian systems.
This patch fixes a wrong use of le32_to_cpu in virtio_transport_send_pkt.
Fixes: b9116823189e85ccf384 ("VSOCK: add loopback to virtio_transport")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function cpdma_desc_pool_create is local to the source and does not
need to be in global scope, so make it static.
Cleans up sparse warning:
warning: symbol 'cpdma_desc_pool_create' was not declared. Should it
be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes using the controller with SDL2.
SDL2 has a naive algorithm to apply the correct settings to a controller.
For X-Box compatible controllers it expects that the controller name
contains a variation of a 'XBOX'-string.
This patch changes the identifier to contain "X-Box" as substring. Tested
with Steam and C-Dogs-SDL which both detect the controller properly after
adding this patch.
Fixes: c1ba08390a8b ("Input: xpad - add GPD Win 2 Controller USB IDs")
Cc: stable@vger.kernel.org
Signed-off-by: Enno Boland <gottox@voidlinux.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Commit 40f7090bb1b4 ("Input: elan_i2c_smbus - fix corrupted stack")
fixed most of the functions using i2c_smbus_read_block_data() to
allocate a buffer with the maximum block size. However three
functions were left unchanged:
* In elan_smbus_initialize(), increase the buffer size in the same
way.
* In elan_smbus_calibrate_result(), the buffer is provided by the
caller (calibrate_store()), so introduce a bounce buffer. Also
name the result buffer size.
* In elan_smbus_get_report(), the buffer is provided by the caller
but happens to be the right length. Add a compile-time assertion
to ensure this remains the case.
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add ELAN0618 to the list of supported touchpads; this ID is used in
Lenovo v330 15IKB devices.
Signed-off-by: Alexandr Savca <alexandr.savca@saltedge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Some touchpad has middle key and it will be indicated in bit 2 of packet[0].
We need to fix V4 formation's byte mask to prevent error decoding.
Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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PNPID is better way to identify the type of touchpads.
Enable middle button support on 2 types of touchpads on Lenovo P52.
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v4.18-rc2:
- Mostly cc: stable display fixes, including a DBLSCAN regression fix
- GEM fixes for this merge window
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87d0wkuypy.fsf@intel.com
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The "sector is in requested range" test used to determine whether
sectors should be re-locked or not is done on a variable that is reset
everytime we cross a chip boundary, which can lead to some blocks being
re-locked while the caller expect them to be unlocked.
Fix the check to make sure this cannot happen.
Fixes: 1648eaaa1575 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking")
Cc: stable@vger.kernel.org
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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Ross Lagerwall says:
====================
xen-netfront: Fix issues with commit f599c64fdf7d
Fix a couple of issues with commit f599c64fdf7d ("xen-netfront: Fix race
between device setup and open").
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Update the features after calling register_netdev() otherwise the
device features are not set up correctly and it not possible to change
the MTU of the device. After this change, the features reported by
ethtool match the device's features before the commit which introduced
the issue and it is possible to change the device's MTU.
Fixes: f599c64fdf7d ("xen-netfront: Fix race between device setup and open")
Reported-by: Liam Shepherd <liam@dancer.es>
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Fixes: f599c64fdf7d ("xen-netfront: Fix race between device setup and open")
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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cfi_ppb_unlock() tries to relock all sectors that were locked before
unlocking the whole chip.
This locking used the chip start address + the FULL offset from the
first flash chip, thereby forming an illegal address. Fix that by using
the chip offset(adr).
Fixes: 1648eaaa1575 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking")
Cc: stable@vger.kernel.org
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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do_ppb_xxlock() fails to add chip->start when querying for lock status
(and chip_ready test), which caused false status reports.
Fix that by adding adr += chip->start and adjust call sites
accordingly.
Fixes: 1648eaaa1575 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking")
Cc: stable@vger.kernel.org
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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On one of our production test machine, when running
bpf selftest test_sockmap, I got the following error:
# sudo ./test_sockmap
libbpf: failed to create map (name: 'sock_map'): Operation not permitted
libbpf: failed to load object 'test_sockmap_kern.o'
libbpf: Can't get the 0th fd from program sk_skb1: only -1 instances
......
load_bpf_file: (-1) Operation not permitted
ERROR: (-1) load bpf failed
The error is due to not-big-enough rlimit
struct rlimit r = {10 * 1024 * 1024, RLIM_INFINITY};
The test already includes "bpf_rlimit.h", which sets current
and max rlimit to RLIM_INFINITY. Let us just use it.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Make sure we flag all broken chips as not supporting this feature.
Also move this logic to a new function to keep things readable.
Fixes: 34c5c01e0c8c ("mtd: rawnand: macronix: nack the support of changing timings for one chip")
Cc: <stable@vger.kernel.org>
Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
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testing script
The test_kmod.sh script require root privilege for the successful
execution of the test.
This patch is to notify the user about the privilege the script
demands for the successful execution of the test.
Signed-off-by: Jeffrin Jose T (Rajagiri SET) <ahiliation@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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If flower filter is created without the skip_sw flag, fl_mask_put()
can race with fl_classify() and we can destroy the mask rhashtable
while a lookup operation is accessing it.
BUG: unable to handle kernel paging request at 00000000000911d1
PGD 0 P4D 0
SMP PTI
CPU: 3 PID: 5582 Comm: vhost-5541 Not tainted 4.18.0-rc1.vanilla+ #1950
Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.1.7 06/16/2016
RIP: 0010:rht_bucket_nested+0x20/0x60
Code: 31 c8 c1 c1 18 29 c8 c3 66 90 8b 4f 04 ba 01 00 00 00 8b 07 48 8b bf 80 00 00 0
RSP: 0018:ffffafc5cfbb7a48 EFLAGS: 00010206
RAX: 0000000000001978 RBX: ffff9f12dff88a00 RCX: 00000000ffff9f12
RDX: 00000000000911d1 RSI: 0000000000000148 RDI: 0000000000000001
RBP: ffff9f12dff88a00 R08: 000000005f1cc119 R09: 00000000a715fae2
R10: ffffafc5cfbb7aa8 R11: ffff9f1cb4be804e R12: ffff9f1265e13000
R13: 0000000000000000 R14: ffffafc5cfbb7b48 R15: ffff9f12dff88b68
FS: 0000000000000000(0000) GS:ffff9f1d3f0c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000911d1 CR3: 0000001575a94006 CR4: 00000000001626e0
Call Trace:
fl_lookup+0x134/0x140 [cls_flower]
fl_classify+0xf3/0x180 [cls_flower]
tcf_classify+0x78/0x150
__netif_receive_skb_core+0x69e/0xa50
netif_receive_skb_internal+0x42/0xf0
tun_get_user+0xdd5/0xfd0 [tun]
tun_sendmsg+0x52/0x70 [tun]
handle_tx+0x2b3/0x5f0 [vhost_net]
vhost_worker+0xab/0x100 [vhost]
kthread+0xf8/0x130
ret_from_fork+0x35/0x40
Modules linked in: act_mirred act_gact cls_flower vhost_net vhost tap sch_ingress
CR2: 00000000000911d1
Fix the above waiting for a RCU grace period before destroying the
rhashtable: we need to use tcf_queue_work(), as rhashtable_destroy()
must run in process context, as pointed out by Cong Wang.
v1 -> v2: use tcf_queue_work to run rhashtable_destroy().
Fixes: 05cd271fd61a ("cls_flower: Support multiple masks per priority")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We should put copy_skb in receive_queue only after
a successful call to virtio_net_hdr_from_skb().
syzbot report :
BUG: KASAN: use-after-free in __skb_unlink include/linux/skbuff.h:1843 [inline]
BUG: KASAN: use-after-free in __skb_dequeue include/linux/skbuff.h:1863 [inline]
BUG: KASAN: use-after-free in skb_dequeue+0x16a/0x180 net/core/skbuff.c:2815
Read of size 8 at addr ffff8801b044ecc0 by task syz-executor217/4553
CPU: 0 PID: 4553 Comm: syz-executor217 Not tainted 4.18.0-rc1+ #111
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+0x1c9/0x2b4 lib/dump_stack.c:113
print_address_description+0x6c/0x20b mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
__skb_unlink include/linux/skbuff.h:1843 [inline]
__skb_dequeue include/linux/skbuff.h:1863 [inline]
skb_dequeue+0x16a/0x180 net/core/skbuff.c:2815
skb_queue_purge+0x26/0x40 net/core/skbuff.c:2852
packet_set_ring+0x675/0x1da0 net/packet/af_packet.c:4331
packet_release+0x630/0xd90 net/packet/af_packet.c:2991
__sock_release+0xd7/0x260 net/socket.c:603
sock_close+0x19/0x20 net/socket.c:1186
__fput+0x35b/0x8b0 fs/file_table.c:209
____fput+0x15/0x20 fs/file_table.c:243
task_work_run+0x1ec/0x2a0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x1b08/0x2750 kernel/exit.c:865
do_group_exit+0x177/0x440 kernel/exit.c:968
__do_sys_exit_group kernel/exit.c:979 [inline]
__se_sys_exit_group kernel/exit.c:977 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:977
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4448e9
Code: Bad RIP value.
RSP: 002b:00007ffd5f777ca8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004448e9
RDX: 00000000004448e9 RSI: 000000000000fcfb RDI: 0000000000000001
RBP: 00000000006cf018 R08: 00007ffd0000a45b R09: 0000000000000000
R10: 00007ffd5f777e48 R11: 0000000000000202 R12: 00000000004021f0
R13: 0000000000402280 R14: 0000000000000000 R15: 0000000000000000
Allocated by task 4553:
save_stack+0x43/0xd0 mm/kasan/kasan.c:448
set_track mm/kasan/kasan.c:460 [inline]
kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
kmem_cache_alloc+0x12e/0x760 mm/slab.c:3554
skb_clone+0x1f5/0x500 net/core/skbuff.c:1282
tpacket_rcv+0x28f7/0x3200 net/packet/af_packet.c:2221
deliver_skb net/core/dev.c:1925 [inline]
deliver_ptype_list_skb net/core/dev.c:1940 [inline]
__netif_receive_skb_core+0x1bfb/0x3680 net/core/dev.c:4611
__netif_receive_skb+0x2c/0x1e0 net/core/dev.c:4693
netif_receive_skb_internal+0x12e/0x7d0 net/core/dev.c:4767
netif_receive_skb+0xbf/0x420 net/core/dev.c:4791
tun_rx_batched.isra.55+0x4ba/0x8c0 drivers/net/tun.c:1571
tun_get_user+0x2af1/0x42f0 drivers/net/tun.c:1981
tun_chr_write_iter+0xb9/0x154 drivers/net/tun.c:2009
call_write_iter include/linux/fs.h:1795 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x6c6/0x9f0 fs/read_write.c:487
vfs_write+0x1f8/0x560 fs/read_write.c:549
ksys_write+0x101/0x260 fs/read_write.c:598
__do_sys_write fs/read_write.c:610 [inline]
__se_sys_write fs/read_write.c:607 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:607
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 4553:
save_stack+0x43/0xd0 mm/kasan/kasan.c:448
set_track mm/kasan/kasan.c:460 [inline]
__kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521
kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
__cache_free mm/slab.c:3498 [inline]
kmem_cache_free+0x86/0x2d0 mm/slab.c:3756
kfree_skbmem+0x154/0x230 net/core/skbuff.c:582
__kfree_skb net/core/skbuff.c:642 [inline]
kfree_skb+0x1a5/0x580 net/core/skbuff.c:659
tpacket_rcv+0x189e/0x3200 net/packet/af_packet.c:2385
deliver_skb net/core/dev.c:1925 [inline]
deliver_ptype_list_skb net/core/dev.c:1940 [inline]
__netif_receive_skb_core+0x1bfb/0x3680 net/core/dev.c:4611
__netif_receive_skb+0x2c/0x1e0 net/core/dev.c:4693
netif_receive_skb_internal+0x12e/0x7d0 net/core/dev.c:4767
netif_receive_skb+0xbf/0x420 net/core/dev.c:4791
tun_rx_batched.isra.55+0x4ba/0x8c0 drivers/net/tun.c:1571
tun_get_user+0x2af1/0x42f0 drivers/net/tun.c:1981
tun_chr_write_iter+0xb9/0x154 drivers/net/tun.c:2009
call_write_iter include/linux/fs.h:1795 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x6c6/0x9f0 fs/read_write.c:487
vfs_write+0x1f8/0x560 fs/read_write.c:549
ksys_write+0x101/0x260 fs/read_write.c:598
__do_sys_write fs/read_write.c:610 [inline]
__se_sys_write fs/read_write.c:607 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:607
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
The buggy address belongs to the object at ffff8801b044ecc0
which belongs to the cache skbuff_head_cache of size 232
The buggy address is located 0 bytes inside of
232-byte region [ffff8801b044ecc0, ffff8801b044eda8)
The buggy address belongs to the page:
page:ffffea0006c11380 count:1 mapcount:0 mapping:ffff8801d9be96c0 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffffea0006c17988 ffff8801d9bec248 ffff8801d9be96c0
raw: 0000000000000000 ffff8801b044e040 000000010000000c 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8801b044eb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff8801b044ec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
>ffff8801b044ec80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
^
ffff8801b044ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801b044ed80: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
Fixes: 58d19b19cd99 ("packet: vnet_hdr support for tpacket_rcv")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Positive return value from read_oob() is making false BAD
blocks. For some of the NAND controllers, OOB bytes will be
protected with ECC and read_oob() will return number of bitflips.
If there is any bitflip in ECC protected OOB bytes for BAD block
status page, then that block is getting treated as BAD.
Fixes: c120e75e0e7d ("mtd: nand: use read_oob() instead of cmdfunc() for bad block check")
Cc: <stable@vger.kernel.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
|
|
Pull NFS client bugfixes from Trond Myklebust:
"Hightlights include:
- fix an rcu deadlock in nfs_delegation_find_inode()
- fix NFSv4 deadlocks due to not freeing the session slot in
layoutget
- don't send layoutreturn if the layout is already invalid
- prevent duplicate XID allocation
- flexfiles: Don't tie up all the rpciod threads in resends"
* tag 'nfs-for-4.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
pNFS/flexfiles: Process writeback resends from nfsiod context as well
pNFS/flexfiles: Don't tie up all the rpciod threads in resends
sunrpc: Prevent duplicate XID allocation
pNFS: Don't send layoutreturn if the layout is already invalid
pNFS: Always free the session slot on error in nfs4_layoutget_handle_exception
NFS: Fix an rcu deadlock in nfs_delegation_find_inode()
|
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some fallout in the pin control subsystem in the first week after the
merge window, some minor fixes so I'd like to get it to you ASAP.
- fix a serious kernel panic on the Mediatek driver with the external
interrupt controller.
- fix an uninitialized compiler warning in the owl (actions) driver.
- allocation failure in the pinctrl-single driver.
- pointer overwrite problem in the i.MX driver.
- fix a small compiler warning"
* tag 'pinctrl-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: mt7622: fix a kernel panic when pio don't work as EINT controller
pinctrl: actions: Fix uninitialized error in owl_pin_config_set()
pinctrl: single: Add allocation failure checking of saved_vals
pinctrl: devicetree: Fix pctldev pointer overwrite
pinctrl: mediatek: remove redundant return value check of platform_get_resource()
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Jakub Kicinski says:
====================
Two small fixes for error handling in bpftool prog load, first patch
removes a duplicated message, second one frees resources correctly.
Multiple error messages break JSON:
{
"error": "can't pin the object (/sys/fs/bpf/a): File exists"
},{
"error": "failed to pin program"
}
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
|
|
Remembering to close all descriptors and free memory may not seem
important in a user space tool like bpftool, but if we were to run
in batch mode the consumed resources start to add up quickly. Make
sure program load closes the libbpf object (which unloads and frees
it).
Fixes: 49a086c201a9 ("bpftool: implement prog load command")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
|
