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Merge tag 'for-linus-20190823' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Here's a set of fixes that should go into this release. This contains:
- Three minor fixes for NVMe.
- Three minor tweaks for the io_uring polling logic.
- Officially mark Song as the MD maintainer, after he's been filling
that role sucessfully for the last 6 months or so"
* tag 'for-linus-20190823' of git://git.kernel.dk/linux-block:
io_uring: add need_resched() check in inner poll loop
md: update MAINTAINERS info
io_uring: don't enter poll loop if we have CQEs pending
nvme: Add quirk for LiteON CL1 devices running FW 22301111
nvme: Fix cntlid validation when not using NVMEoF
nvme-multipath: fix possible I/O hang when paths are updated
io_uring: fix potential hang with polled IO
proper fix has been made to the block loopback driver.
- Fix DM kcopyd to wakeup so failed subjobs get completed.
- Various fixes to DM zoned target to address error handling, and other
small tweaks (SPDX license identifiers and fix typos).
- Fix DM integrity range locking race by tracking whether journal has
changed.
- Fix DM dust target to detect reads of badblocks beyond the first 512b
sector (applicable if blocksize is larger than 512b).
- Fix DM persistent-data issue in both the DM btree and DM
space-map-metadata interfaces.
- Fix out of bounds memory access with certain DM table configurations.
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Merge tag 'for-5.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Revert a DM bufio change from during the 5.3 merge window now that a
proper fix has been made to the block loopback driver.
- Fix DM kcopyd to wakeup so failed subjobs get completed.
- Various fixes to DM zoned target to address error handling, and other
small tweaks (SPDX license identifiers and fix typos).
- Fix DM integrity range locking race by tracking whether journal has
changed.
- Fix DM dust target to detect reads of badblocks beyond the first 512b
sector (applicable if blocksize is larger than 512b).
- Fix DM persistent-data issue in both the DM btree and DM
space-map-metadata interfaces.
- Fix out of bounds memory access with certain DM table configurations.
* tag 'for-5.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm table: fix invalid memory accesses with too high sector number
dm space map metadata: fix missing store of apply_bops() return value
dm btree: fix order of block initialization in btree_split_beneath
dm raid: add missing cleanup in raid_ctr()
dm zoned: fix potential NULL dereference in dmz_do_reclaim()
dm dust: use dust block size for badblocklist index
dm integrity: fix a crash due to BUG_ON in __journal_read_write()
dm zoned: fix a few typos
dm zoned: add SPDX license identifiers
dm zoned: properly handle backing device failure
dm zoned: improve error handling in i/o map code
dm zoned: improve error handling in reclaim
dm kcopyd: always complete failed jobs
Revert "dm bufio: fix deadlock with loop device"
- Fix missing compat ioctl handling for get/setlabel
- Fix missing ioctl pointer sanitization on s390
- Fix a page locking deadlock in the dedupe comparison code
- Fix inadequate locking in reflink code w.r.t. concurrent directio
- Fix broken error detection when breaking layouts
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Merge tag 'xfs-5.3-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are a few more bug fixes that trickled in since the last pull.
They've survived the usual xfstests runs and merge cleanly with this
morning's master.
I expect there to be one more pull request tomorrow for the fix to
that quota related inode unlock bug that we were reviewing last night,
but it will continue to soak in the testing machine for several more
hours.
- Fix missing compat ioctl handling for get/setlabel
- Fix missing ioctl pointer sanitization on s390
- Fix a page locking deadlock in the dedupe comparison code
- Fix inadequate locking in reflink code w.r.t. concurrent directio
- Fix broken error detection when breaking layouts"
* tag 'xfs-5.3-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
fs/xfs: Fix return code of xfs_break_leased_layouts()
xfs: fix reflink source file racing with directio writes
vfs: fix page locking deadlocks when deduping files
xfs: compat_ioctl: use compat_ptr()
xfs: fall back to native ioctls for unhandled compat ones
At the moment we initialise the target *mask* of a virtual IRQ to the
VCPU it belongs to, even though this mask is only defined for GICv2 and
quickly runs out of bits for many GICv3 guests.
This behaviour triggers an UBSAN complaint for more than 32 VCPUs:
------
[ 5659.462377] UBSAN: Undefined behaviour in virt/kvm/arm/vgic/vgic-init.c:223:21
[ 5659.471689] shift exponent 32 is too large for 32-bit type 'unsigned int'
------
Also for GICv3 guests the reporting of TARGET in the "vgic-state" debugfs
dump is wrong, due to this very same problem.
Because there is no requirement to create the VGIC device before the
VCPUs (and QEMU actually does it the other way round), we can't safely
initialise mpidr or targets in kvm_vgic_vcpu_init(). But since we touch
every private IRQ for each VCPU anyway later (in vgic_init()), we can
just move the initialisation of those fields into there, where we
definitely know the VGIC type.
On the way make sure we really have either a VGICv2 or a VGICv3 device,
since the existing code is just checking for "VGICv3 or not", silently
ignoring the uninitialised case.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reported-by: Dave Martin <dave.martin@arm.com>
Tested-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Multiple batadv_ogm2_packet can be stored in an skbuff. The functions
batadv_v_ogm_send_to_if() uses batadv_v_ogm_aggr_packet() to check if there
is another additional batadv_ogm2_packet in the skb or not before they
continue processing the packet.
The length for such an OGM2 is BATADV_OGM2_HLEN +
batadv_ogm2_packet->tvlv_len. The check must first check that at least
BATADV_OGM2_HLEN bytes are available before it accesses tvlv_len (which is
part of the header. Otherwise it might try read outside of the currently
available skbuff to get the content of tvlv_len.
Fixes: 9323158ef9 ("batman-adv: OGMv2 - implement originators logic")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Multiple batadv_ogm_packet can be stored in an skbuff. The functions
batadv_iv_ogm_send_to_if()/batadv_iv_ogm_receive() use
batadv_iv_ogm_aggr_packet() to check if there is another additional
batadv_ogm_packet in the skb or not before they continue processing the
packet.
The length for such an OGM is BATADV_OGM_HLEN +
batadv_ogm_packet->tvlv_len. The check must first check that at least
BATADV_OGM_HLEN bytes are available before it accesses tvlv_len (which is
part of the header. Otherwise it might try read outside of the currently
available skbuff to get the content of tvlv_len.
Fixes: ef26157747 ("batman-adv: tvlv - basic infrastructure")
Reported-by: syzbot+355cab184197dbbfa384@syzkaller.appspotmail.com
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
an assert and a NULL pointer dereference) plus a small series from Luis
fixing instances of vfree() under spinlock.
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Merge tag 'ceph-for-5.3-rc6' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Three important fixes tagged for stable (an indefinite hang, a crash
on an assert and a NULL pointer dereference) plus a small series from
Luis fixing instances of vfree() under spinlock"
* tag 'ceph-for-5.3-rc6' of git://github.com/ceph/ceph-client:
libceph: fix PG split vs OSD (re)connect race
ceph: don't try fill file_lock on unsuccessful GETFILELOCK reply
ceph: clear page dirty before invalidate page
ceph: fix buffer free while holding i_ceph_lock in fill_inode()
ceph: fix buffer free while holding i_ceph_lock in __ceph_build_xattrs_blob()
ceph: fix buffer free while holding i_ceph_lock in __ceph_setxattr()
libceph: allow ceph_buffer_put() to receive a NULL ceph_buffer
rcar-du:
- LVDS dual-link mode fix
mediatek:
- of node refcount fix
- prime buffer import fix
- dma max seg fix
komeda:
- output polling fix
- abfc format fix
- memory-region DT fix
amdgpu:
- bpc display fix
- ioctl memory leak fix
- gfxoff fix
- smu warnings fix
i915:
- HDMI mode readout fix
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Merge tag 'drm-fixes-2019-08-23' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Live from the laundromat after my washing machine broke down, we have
the 5.3-rc6 fixes. Changelog is in the tag below, but nothing too
noteworthy in here:
rcar-du:
- LVDS dual-link mode fix
mediatek:
- of node refcount fix
- prime buffer import fix
- dma max seg fix
komeda:
- output polling fix
- abfc format fix
- memory-region DT fix
amdgpu:
- bpc display fix
- ioctl memory leak fix
- gfxoff fix
- smu warnings fix
i915:
- HDMI mode readout fix"
* tag 'drm-fixes-2019-08-23' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu/powerplay: silence a warning in smu_v11_0_setup_pptable
drm/amd/display: Calculate bpc based on max_requested_bpc
drm/amdgpu: prevent memory leaks in AMDGPU_CS ioctl
drm/amd/amdgpu: disable MMHUB PG for navi10
drm/amd/powerplay: remove duplicate macro smu_get_uclk_dpm_states in amdgpu_smu.h
drm/amd/powerplay: fix variable type errors in smu_v11_0_setup_pptable
drm/amdgpu/gfx9: update pg_flags after determining if gfx off is possible
drm/i915: Fix HW readout for crtc_clock in HDMI mode
drm/mediatek: mtk_drm_drv.c: Add of_node_put() before goto
drm: rcar_lvds: Fix dual link mode operations
drm/mediatek: set DMA max segment size
drm/mediatek: use correct device to import PRIME buffers
drm/omap: ensure we have a valid dma_mask
drm/komeda: Add support for 'memory-region' DT node property
drm/komeda: Adds internal bpp computing for arm afbc only format YU08 YU10
drm/komeda: Initialize and enable output polling on Komeda
Use 'lea' instead of 'add' when adjusting %rsp in CALL_NOSPEC so as to
avoid clobbering flags.
KVM's emulator makes indirect calls into a jump table of sorts, where
the destination of the CALL_NOSPEC is a small blob of code that performs
fast emulation by executing the target instruction with fixed operands.
adcb_al_dl:
0x000339f8 <+0>: adc %dl,%al
0x000339fa <+2>: ret
A major motiviation for doing fast emulation is to leverage the CPU to
handle consumption and manipulation of arithmetic flags, i.e. RFLAGS is
both an input and output to the target of CALL_NOSPEC. Clobbering flags
results in all sorts of incorrect emulation, e.g. Jcc instructions often
take the wrong path. Sans the nops...
asm("push %[flags]; popf; " CALL_NOSPEC " ; pushf; pop %[flags]\n"
0x0003595a <+58>: mov 0xc0(%ebx),%eax
0x00035960 <+64>: mov 0x60(%ebx),%edx
0x00035963 <+67>: mov 0x90(%ebx),%ecx
0x00035969 <+73>: push %edi
0x0003596a <+74>: popf
0x0003596b <+75>: call *%esi
0x000359a0 <+128>: pushf
0x000359a1 <+129>: pop %edi
0x000359a2 <+130>: mov %eax,0xc0(%ebx)
0x000359b1 <+145>: mov %edx,0x60(%ebx)
ctxt->eflags = (ctxt->eflags & ~EFLAGS_MASK) | (flags & EFLAGS_MASK);
0x000359a8 <+136>: mov -0x10(%ebp),%eax
0x000359ab <+139>: and $0x8d5,%edi
0x000359b4 <+148>: and $0xfffff72a,%eax
0x000359b9 <+153>: or %eax,%edi
0x000359bd <+157>: mov %edi,0x4(%ebx)
For the most part this has gone unnoticed as emulation of guest code
that can trigger fast emulation is effectively limited to MMIO when
running on modern hardware, and MMIO is rarely, if ever, accessed by
instructions that affect or consume flags.
Breakage is almost instantaneous when running with unrestricted guest
disabled, in which case KVM must emulate all instructions when the guest
has invalid state, e.g. when the guest is in Big Real Mode during early
BIOS.
Fixes: 776b043848fd2 ("x86/retpoline: Add initial retpoline support")
Fixes: 1a29b5b7f3 ("KVM: x86: Make indirect calls in emulator speculation safe")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190822211122.27579-1-sean.j.christopherson@intel.com
If the sector number is too high, dm_table_find_target() should return a
pointer to a zeroed dm_target structure (the caller should test it with
dm_target_is_valid).
However, for some table sizes, the code in dm_table_find_target() that
performs btree lookup will access out of bound memory structures.
Fix this bug by testing the sector number at the beginning of
dm_table_find_target(). Also, add an "inline" keyword to the function
dm_table_get_size() because this is a hot path.
Fixes: 512875bd96 ("dm: table detect io beyond device")
Cc: stable@vger.kernel.org
Reported-by: Zhang Tao <kontais@zoho.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
komeda/komeda_pipeline.c: In function 'komeda_component_add':
komeda/komeda_pipeline.c:212:3: warning: function 'komeda_component_add' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
vsnprintf(c->name, sizeof(c->name), name_fmt, args);
^~~~~~~~~
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190813110759.10425-1-james.qian.wang@arm.com
Fixed two -Wunused-but-set-variable warnings:
/arm/linux/display/aosp-4.14-drm-next/drivers/gpu/drm/arm/display/komeda/komeda_kms.c: In function ‘komeda_crtc_normalize_zpos’:
/arm/linux/display/aosp-4.14-drm-next/drivers/gpu/drm/arm/display/komeda/komeda_kms.c:150:26: warning: variable ‘fb’ set but not used [-Wunused-but-set-variable]
struct drm_framebuffer *fb;
^~
/arm/linux/display/aosp-4.14-drm-next/drivers/gpu/drm/arm/display/komeda/komeda_kms.c: In function ‘komeda_kms_check’:
/arm/linux/display/aosp-4.14-drm-next/drivers/gpu/drm/arm/display/komeda/komeda_kms.c:209:25: warning: variable ‘old_crtc_st’ set but not used [-Wunused-but-set-variable]
struct drm_crtc_state *old_crtc_st, *new_crtc_st;
^~~~~~~~~~~
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190812112322.15990-1-james.qian.wang@arm.com
The patch 5d51f6c0da: "drm/komeda: Add writeback support" from May
23, 2019, leads to the following static checker warning:
drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c:151 komeda_wb_connector_add()
error: not allocating enough data 1592 vs 1584
This is a typo which misuse "wb_conn" but which should be "kwb_conn" to
allocate the memory.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819080136.10190-1-james.qian.wang@arm.com
It is easy to read code if it is cleanly using paired function/naming,
like start <-> stop, register <-> unregister, etc, etc.
But, current ALSA SoC code is very random, unbalance, not paired, etc.
It is easy to create bug at the such code, and it will be difficult to
debug.
From function name point of view, "soc_post_component_init()" sounds
like "component initialize function".
But in reality it is rtd setup function.
This patch renames soc_post_component_init() to soc_rtd_init()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v9uo7lc3.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In the commit ef41b5c924 ("ARM: make kernel oops easier to read"),
- .word 0xe92d0000 >> 10 @ stmfd sp!, {}
+ .word 0xe92d0000 >> 11 @ stmfd sp!, {}
then the shift need to change to 11.
Signed-off-by: Lvqiang Huang <Lvqiang.Huang@unisoc.com>
Signed-off-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
A timing hazard exists when an early fork/exec thread begins
exiting and sets its mm pointer to NULL while a separate core
tries to update the section information.
This commit ensures that the mm pointer is not NULL before
setting its section parameters. The arguments provided by
commit 11ce4b33ae ("ARM: 8672/1: mm: remove tasklist locking
from update_sections_early()") are equally valid for not
requiring grabbing the task_lock around this check.
Fixes: 08925c2f12 ("ARM: 8464/1: Update all mm structures with section adjustments")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
The new API for registering a gpio_irq_chip along with a
gpio_chip has a different semantic ordering than the old
API which added the irqchip explicitly after registering
the gpio_chip.
Move the calls to add the gpio_irq_chip *last* in the
function, so that the different hooks setting up OF and
ACPI and machine gpio_chips are called *before* we try
to register the interrupts, preserving the elder semantic
order.
This cropped up in the PL061 driver which used to work
fine with no special ACPI quirks, but started to misbehave
using the new API.
Fixes: e0d8972898 ("gpio: Implement tighter IRQ chip integration")
Cc: Thierry Reding <treding@nvidia.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: Wei Xu <xuwei5@hisilicon.com>
Tested-by: Wei Xu <xuwei5@hisilicon.com>
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190820080527.11796-1-linus.walleij@linaro.org
We must make sure our scatterlist segments are not too big, otherwise
we might see swiotlb failures (happens with sev, also reproducable with
swiotlb=force).
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190821111210.27165-1-kraxel@redhat.com
When refactoring port lookup for DSS outputs, commit d17eb4537a
("drm/omap: Factor out common init/cleanup code for output devices")
incorrectly hardcoded usage of DT port 0. This breaks operation for SDI
(which uses the DT port 1) and DPI outputs other than DPI0 (which are
not used in mainline DT sources).
Fix this by using the port number from the output omap_dss_device
of_ports field.
Fixes: d17eb4537a ("drm/omap: Factor out common init/cleanup code for output devices")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190821183226.13784-1-laurent.pinchart@ideasonboard.com
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
qxl has two modes: "native" (used by the drm driver) and "vga" (vga
compatibility mode, typically used for boot display and firmware
framebuffers).
Accessing any vga ioport will switch the qxl device into vga mode.
The qxl driver never does that, but other drivers accessing vga ports
can trigger that too and therefore disturb qxl operation. So aquire
the legacy vga ioports from vgaarb to avoid that.
Reproducer: Boot kvm guest with both qxl and i915 vgpu, with qxl being
first in pci scan order.
v2: Skip this for secondary qxl cards which don't have vga mode in the
first place (Frediano).
Cc: Frediano Ziglio <fziglio@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805105401.29874-1-kraxel@redhat.com
Benjamin Moody reported to Debian that XFS partially wedges when a chgrp
fails on account of being out of disk quota. I ran his reproducer
script:
# adduser dummy
# adduser dummy plugdev
# dd if=/dev/zero bs=1M count=100 of=test.img
# mkfs.xfs test.img
# mount -t xfs -o gquota test.img /mnt
# mkdir -p /mnt/dummy
# chown -c dummy /mnt/dummy
# xfs_quota -xc 'limit -g bsoft=100k bhard=100k plugdev' /mnt
(and then as user dummy)
$ dd if=/dev/urandom bs=1M count=50 of=/mnt/dummy/foo
$ chgrp plugdev /mnt/dummy/foo
and saw:
================================================
WARNING: lock held when returning to user space!
5.3.0-rc5 #rc5 Tainted: G W
------------------------------------------------
chgrp/47006 is leaving the kernel with locks still held!
1 lock held by chgrp/47006:
#0: 000000006664ea2d (&xfs_nondir_ilock_class){++++}, at: xfs_ilock+0xd2/0x290 [xfs]
...which is clearly caused by xfs_setattr_nonsize failing to unlock the
ILOCK after the xfs_qm_vop_chown_reserve call fails. Add the missing
unlock.
Reported-by: benjamin.moody@gmail.com
Fixes: 253f4911f2 ("xfs: better xfs_trans_alloc interface")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
While I had thought I had fixed this issue in:
commit 342406e4fb ("drm/nouveau/i2c: Disable i2c bus access after
->fini()")
It turns out that while I did fix the error messages I was seeing on my
P50 when trying to access i2c busses with the GPU in runtime suspend, I
accidentally had missed one important detail that was mentioned on the
bug report this commit was supposed to fix: that the CPU would only lock
up when trying to access i2c busses _on connected devices_ _while the
GPU is not in runtime suspend_. Whoops. That definitely explains why I
was not able to get my machine to hang with i2c bus interactions until
now, as plugging my P50 into it's dock with an HDMI monitor connected
allowed me to finally reproduce this locally.
Now that I have managed to reproduce this issue properly, it looks like
the problem is much simpler then it looks. It turns out that some
connected devices, such as MST laptop docks, will actually ACK i2c reads
even if no data was actually read:
[ 275.063043] nouveau 0000:01:00.0: i2c: aux 000a: 1: 0000004c 1
[ 275.063447] nouveau 0000:01:00.0: i2c: aux 000a: 00 01101000 10040000
[ 275.063759] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000001
[ 275.064024] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000000
[ 275.064285] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000000
[ 275.064594] nouveau 0000:01:00.0: i2c: aux 000a: rd 00000000
Because we don't handle the situation of i2c ack without any data, we
end up entering an infinite loop in nvkm_i2c_aux_i2c_xfer() since the
value of cnt always remains at 0. This finally properly explains how
this could result in a CPU hang like the ones observed in the
aforementioned commit.
So, fix this by retrying transactions if no data is written or received,
and give up and fail the transaction if we continue to not write or
receive any data after 32 retries.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The request coming from Netlink should use the OEM generic handler.
The standard command handler expects payload in bytes/words/dwords
but the actual payload is stored in data if the request is coming from Netlink.
Signed-off-by: Justin Lee <justin.lee1@dell.com>
Reviewed-by: Vijay Khemka <vijaykhemka@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- dma fix for omap.
- Make output polling work on komeda.
- Fix bpp computing for AFBC formats in komeda.
- Support the memory-region property in komeda.
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Merge tag 'drm-misc-fixes-2019-08-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v5.3-rc6:
- dma fix for omap.
- Make output polling work on komeda.
- Fix bpp computing for AFBC formats in komeda.
- Support the memory-region property in komeda.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5f1fdfe3-814e-fad1-663c-7279217fc085@linux.intel.com
The VDSO update for CLOCK_BOOTTIME has a overflow issue as it shifts the
nanoseconds based boot time offset left by the clocksource shift. That
overflows once the boot time offset becomes large enough. As a consequence
CLOCK_BOOTTIME in the VDSO becomes a random number causing applications to
misbehave.
Fix it by storing a timespec64 representation of the offset when boot time
is adjusted and add that to the MONOTONIC base time value in the vdso data
page. Using the timespec64 representation avoids a 64bit division in the
update code.
Fixes: 44f57d788e ("timekeeping: Provide a generic update_vsyscall() implementation")
Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1908221257580.1983@nanos.tec.linutronix.de
Third set of fixes for 5.3, and most likely the last one. The rt2x00
regression has been reported multiple times, others are of lower
priority.
mt76
* fix hang on resume on certain machines
rt2x00
* fix AP mode regression related to encryption
iwlwifi
* avoid unnecessary error messages due to multicast frames when not
associated
* fix configuration for ax201 devices
* fix recognition of QuZ devices
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Merge tag 'wireless-drivers-for-davem-2019-08-21' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 5.3
Third set of fixes for 5.3, and most likely the last one. The rt2x00
regression has been reported multiple times, others are of lower
priority.
mt76
* fix hang on resume on certain machines
rt2x00
* fix AP mode regression related to encryption
iwlwifi
* avoid unnecessary error messages due to multicast frames when not
associated
* fix configuration for ax201 devices
* fix recognition of QuZ devices
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If qed_mcp_send_drv_version() fails, no cleanup is executed, leading to
memory leaks. To fix this issue, introduce the label 'err4' to perform the
cleanup work before returning the error.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The trap action should be copying the frame to CPU and
dropping it for forwarding, but current setting was just
copying frame to CPU.
Fixes: b596229448 ("net: mscc: ocelot: Add support for tcam")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Allan W. Nielsen <allan.nielsen@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Unfortunately, my build fix for when time travel mode isn't
enabled broke time travel mode, because I forgot that we need
to use the timer time after the timer has been marked disabled,
and thus need to leave the time stored instead of zeroing it.
Fix that by splitting the inline into two, so we can call only
the _mode() one in the relevant code path.
Fixes: b482e48d29 ("um: fix build without CONFIG_UML_TIME_TRAVEL_SUPPORT")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
The outer poll loop checks for whether we need to reschedule, and
returns to userspace if we do. However, it's possible to get stuck
in the inner loop as well, if the CPU we are running on needs to
reschedule to finish the IO work.
Add the need_resched() check in the inner loop as well. This fixes
a potential hang if the kernel is configured with
CONFIG_PREEMPT_VOLUNTARY=y.
Reported-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'pci-v5.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Reset both NVIDIA GPU and HDA in ThinkPad P50 quirk, which was broken
by another quirk that enabled the HDA device (Lyude Paul)
- Fix pciebus-howto.rst documentation filename typo (Bjorn Helgaas)
* tag 'pci-v5.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Documentation PCI: Fix pciebus-howto.rst filename typo
PCI: Reset both NVIDIA GPU and HDA in ThinkPad P50 workaround
Dump WQE shall not include Ethernet segment. Define mlx5e_dump_wqe to be
used for "Dump WQEs" instead of sharing it with the general mlx5e_tx_wqe
layout.
Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
For TLS WQEs, metadata info did not include num_bytes. Due to this issue,
tx_tls_dump_bytes counter did not increment.
Modify tx_fill_wi() to fill num bytes. When it is called for non-traffic
WQE, zero is expected.
Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When fw fatal error occurs, poll health() first detects and reports on a
fw error. Afterwards, it detects and reports on the fw fatal error
itself.
That can cause a long delay in fw fatal error handling which waits in a
queue for the fw error handling to be finished. The fw error handle will
try asking for fw core dump command while fw in fatal state may not
respond and driver will wait for command timeout.
Changing the flow to detect and handle first fw fatal errors and only if
no fatal error detected look for a fw error to handle.
Fixes: d1bf0e2cc4 ("net/mlx5: Report devlink health on FW issues")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Crdump repeats itself every chunk of 256bytes.
That is due to bug of missing progressing offset while copying the data
from buffer to devlink_fmsg.
Fixes: 9b1f298236 ("net/mlx5: Add support for FW fatal reporter dump")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
In commit 6096d91af0 ("dm space map metadata: fix occasional leak
of a metadata block on resize"), we refactor the commit logic to a new
function 'apply_bops'. But when that logic was replaced in out() the
return value was not stored. This may lead out() returning a wrong
value to the caller.
Fixes: 6096d91af0 ("dm space map metadata: fix occasional leak of a metadata block on resize")
Cc: stable@vger.kernel.org
Signed-off-by: ZhangXiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
When btree_split_beneath() splits a node to two new children, it will
allocate two blocks: left and right. If right block's allocation
failed, the left block will be unlocked and marked dirty. If this
happened, the left block'ss content is zero, because it wasn't
initialized with the btree struct before the attempot to allocate the
right block. Upon return, when flushing the left block to disk, the
validator will fail when check this block. Then a BUG_ON is raised.
Fix this by completely initializing the left block before allocating and
initializing the right block.
Fixes: 4dcb8b57df ("dm btree: fix leak of bufio-backed block in btree_split_beneath error path")
Cc: stable@vger.kernel.org
Signed-off-by: ZhangXiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Hi Linus,
Please, pull the following patches that mark switch cases where we are
expecting to fall through.
- Fix fall-through warnings on arm and mips for multiple
configurations.
Thanks
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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Merge tag 'Wimplicit-fallthrough-5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull more fallthrough fixes from Gustavo A. R. Silva:
"Fix fall-through warnings on arm and mips for multiple configurations"
* tag 'Wimplicit-fallthrough-5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
video: fbdev: acornfb: Mark expected switch fall-through
scsi: libsas: sas_discover: Mark expected switch fall-through
MIPS: Octeon: Mark expected switch fall-through
power: supply: ab8500_charger: Mark expected switch fall-through
watchdog: wdt285: Mark expected switch fall-through
mtd: sa1100: Mark expected switch fall-through
drm/sun4i: tcon: Mark expected switch fall-through
drm/sun4i: sun6i_mipi_dsi: Mark expected switch fall-through
ARM: riscpc: Mark expected switch fall-through
dmaengine: fsldma: Mark expected switch fall-through
Fixes:
1. platform/chrome: cros_ec_ishtp: fix crash during suspend
- Fixes a kernel crash during suspend/resume of cros_ec_ishtp
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Merge tag 'tag-chrome-platform-fixes-for-v5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform fix from Benson Leung:
"Fix a kernel crash during suspend/resume of cros_ec_ishtp"
* tag 'tag-chrome-platform-fixes-for-v5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_ishtp: fix crash during suspend
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Merge tag 'afs-fixes-20190822' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
- Fix a cell record leak due to the default error not being cleared.
- Fix an oops in tracepoint due to a pointer that may contain an error.
- Fix the ACL storage op for YFS where the wrong op definition is being
used. By luck, this only actually affects the information appearing
in traces.
* tag 'afs-fixes-20190822' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: use correct afs_call_type in yfs_fs_store_opaque_acl2
afs: Fix possible oops in afs_lookup trace event
afs: Fix leak in afs_lookup_cell_rcu()
Initialize component related list at random place is very difficult
to read. This patch initialize it at snd_soc_component_initialize().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87y2zozazp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sof_get_control_data returns negative values even though the return
value is defined unsigned (size_t). So change the return value type to
int and add the data size as pointer argument to sof_get_control_data to
avoid ambiquity in the meaning of the return type.
Fixes: cac974a51e ("ASoC: SOF: topology: use set_get_data in process load")
Reported by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaska Uimonen <jaska.uimonen@intel.com>
Link: https://lore.kernel.org/r/20190821211138.14618-1-jaska.uimonen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
It might return without initializing in error case.
In such case, uninitialized variable might be used at error handler.
This patch initializes all necessary variable before return.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87zhk4zazt.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
commit 52abe6cc18 ("ASoC: topology: fix oops/use-after-free case
with dai driver") fixups remove_dai() error, but it is using
list_for_each_entry() for component->dai_list.
We already have for_each_component_dais() macro for it.
Let's use exising method.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87tvaczazd.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
