It's more readable to just pass NULL directly instead of using a variable
for that.
Link: https://lkml.kernel.org/r/Y/yAlDytLH0ZNLNz@kili
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Remove empty if statement from nfs3_prepare_get_acl and update comment to
follow the one from the referred fs/posix_acl.c:get_acl().
No functional change intended.
Link: https://lkml.kernel.org/r/20221130151231.3654-1-ubizjak@gmail.com
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
procfs' .setattr() has updated i_uid, i_gid and i_mode into proc dirent,
we don't need to call mark_inode_dirty() for delayed update, remove it.
Link: https://lkml.kernel.org/r/20230131150840.34726-1-chao@kernel.org
Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When CONFIG_PROC_FS is not set, proc_salinfo_show() is not used. Mark the
function as __maybe_unused to quieten the warning message.
../arch/ia64/kernel/salinfo.c:584:12: warning: 'proc_salinfo_show' defined but not used [-Wunused-function]
584 | static int proc_salinfo_show(struct seq_file *m, void *v)
| ^~~~~~~~~~~~~~~~~
Link: https://lkml.kernel.org/r/20230223034309.13375-1-rdunlap@infradead.org
Fixes: 3f3942aca6 ("proc: introduce proc_create_single{,_data}")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
alloc_per_cpu_data() is called by find_memory(), which is marked as
__init. Therefore alloc_per_cpu_data() can also be marked as __init to
remedy this modpost problem.
WARNING: modpost: vmlinux.o: section mismatch in reference: alloc_per_cpu_data (section: .text) -> memblock_alloc_try_nid (section: .init.text)
Link: https://lkml.kernel.org/r/20230223034258.12917-1-rdunlap@infradead.org
Fixes: 4b9ddc7cf2 ("[IA64] Fix section mismatch in contig.c version of per_cpu_init()")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Improve the average delay precision of getdelay tool to microsecond. When
using the getdelay tool, it is sometimes found that the average delay
except CPU is not 0, but display is 0, because the precison is too low.
For example, see delay average of SWAP below when using ZRAM.
print delayacct stats ON
PID 32915
CPU count real total virtual total delay total delay average
339202 2793871936 9233585504 7951112 0.000ms
IO count delay total delay average
41 419296904 10ms
SWAP count delay total delay average
242589 1045792384 0ms
This wrong display is misleading, so improve the millisecond precision of
the average delay to microsecond just like CPU. Then user would get more
accurate information of delay time.
Link: https://lkml.kernel.org/r/202302131408087983857@zte.com.cn
Signed-off-by: Wang Yong <wang.yong12@zte.com.cn>
Reviewed-by: Yang Yang <yang.yang29@zte.com.cn>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
- fix irq handling in gpio-davinci
- fix Kconfig dependencies for gpio-regmap
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Merge tag 'gpio-fixes-for-v6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix irq handling in gpio-davinci
- fix Kconfig dependencies for gpio-regmap
* tag 'gpio-fixes-for-v6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: davinci: Add irq chip flag to skip set wake
gpio: davinci: Do not clear the bank intr enable bit in save_context
gpio: GPIO_REGMAP: select REGMAP instead of depending on it
Fix the ACPI backlight override mechanism for the cases when
acpi_backlight=video is set through the kernel command line or a DMI
quirk and add backlight quirks for Apple iMac14,1 and iMac14,2 and
Lenovo ThinkPad W530 (Hans de Goede).
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Merge tag 'acpi-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"Fix the ACPI backlight override mechanism for the cases when
acpi_backlight=video is set through the kernel command line or a DMI
quirk and add backlight quirks for Apple iMac14,1 and iMac14,2 and
Lenovo ThinkPad W530 (Hans de Goede)"
* tag 'acpi-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: video: Add acpi_backlight=video quirk for Lenovo ThinkPad W530
ACPI: video: Add acpi_backlight=video quirk for Apple iMac14,1 and iMac14,2
ACPI: video: Make acpi_backlight=video work independent from GPU driver
ACPI: video: Add auto_detect arg to __acpi_video_get_backlight_type()
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Merge tag '6.3-rc5-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull ksmbd server fixes from Steve French:
"Four fixes, three for stable:
- slab out of bounds fix
- lock cancellation fix
- minor cleanup to address clang warning
- fix for xfstest 551 (wrong parms passed to kvmalloc)"
* tag '6.3-rc5-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
ksmbd: delete asynchronous work from list
ksmbd: remove unused is_char_allowed function
ksmbd: do not call kvmalloc() with __GFP_NORETRY | __GFP_NO_WARN
Current release - regressions:
- wifi: mac80211:
- fix potential null pointer dereference
- fix receiving mesh packets in forwarding=0 networks
- fix mesh forwarding
Current release - new code bugs:
- virtio/vsock: fix leaks due to missing skb owner
Previous releases - regressions:
- raw: fix NULL deref in raw_get_next().
- sctp: check send stream number after wait_for_sndbuf
- qrtr:
- fix a refcount bug in qrtr_recvmsg()
- do not do DEL_SERVER broadcast after DEL_CLIENT
- wifi: brcmfmac: fix SDIO suspend/resume regression
- wifi: mt76: fix use-after-free in fw features query.
- can: fix race between isotp_sendsmg() and isotp_release()
- eth: mtk_eth_soc: fix remaining throughput regression
-eth: ice: reset FDIR counter in FDIR init stage
Previous releases - always broken:
- core: don't let netpoll invoke NAPI if in xmit context
- icmp: guard against too small mtu
- ipv6: fix an uninit variable access bug in __ip6_make_skb()
- wifi: mac80211: fix the size calculation of ieee80211_ie_len_eht_cap()
- can: fix poll() to not report false EPOLLOUT events
- eth: gve: secure enough bytes in the first TX desc for all TCP pkts
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.3-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless and can.
Current release - regressions:
- wifi: mac80211:
- fix potential null pointer dereference
- fix receiving mesh packets in forwarding=0 networks
- fix mesh forwarding
Current release - new code bugs:
- virtio/vsock: fix leaks due to missing skb owner
Previous releases - regressions:
- raw: fix NULL deref in raw_get_next().
- sctp: check send stream number after wait_for_sndbuf
- qrtr:
- fix a refcount bug in qrtr_recvmsg()
- do not do DEL_SERVER broadcast after DEL_CLIENT
- wifi: brcmfmac: fix SDIO suspend/resume regression
- wifi: mt76: fix use-after-free in fw features query.
- can: fix race between isotp_sendsmg() and isotp_release()
- eth: mtk_eth_soc: fix remaining throughput regression
- eth: ice: reset FDIR counter in FDIR init stage
Previous releases - always broken:
- core: don't let netpoll invoke NAPI if in xmit context
- icmp: guard against too small mtu
- ipv6: fix an uninit variable access bug in __ip6_make_skb()
- wifi: mac80211: fix the size calculation of
ieee80211_ie_len_eht_cap()
- can: fix poll() to not report false EPOLLOUT events
- eth: gve: secure enough bytes in the first TX desc for all TCP
pkts"
* tag 'net-6.3-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
net: stmmac: check fwnode for phy device before scanning for phy
net: stmmac: Add queue reset into stmmac_xdp_open() function
selftests: net: rps_default_mask.sh: delete veth link specifically
net: fec: make use of MDIO C45 quirk
can: isotp: fix race between isotp_sendsmg() and isotp_release()
can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events
can: isotp: isotp_recvmsg(): use sock_recv_cmsgs() to get SOCK_RXQ_OVFL infos
can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access
gve: Secure enough bytes in the first TX desc for all TCP pkts
netlink: annotate lockless accesses to nlk->max_recvmsg_len
ethtool: reset #lanes when lanes is omitted
ping: Fix potentail NULL deref for /proc/net/icmp.
raw: Fix NULL deref in raw_get_next().
ice: Reset FDIR counter in FDIR init stage
ice: fix wrong fallback logic for FDIR
net: stmmac: fix up RX flow hash indirection table when setting channels
net: ethernet: ti: am65-cpsw: Fix mdio cleanup in probe
wifi: mt76: ignore key disable commands
wifi: ath11k: reduce the MHI timeout to 20s
ipv6: Fix an uninit variable access bug in __ip6_make_skb()
...
This Kselftest fixes update for Linux 6.3-rc6 consists of one single
fix to mount_setattr_test build failure.
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Merge tag 'linux-kselftest-fixes-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"One single fix to mount_setattr_test build failure"
* tag 'linux-kselftest-fixes-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests mount: Fix mount_setattr_test builds failed
Three bugs found by syzkaller:
- An invalid VA range can be be put in a pages and eventually trigger
WARN_ON, reject it early
- Use of the wrong start index value when doing the complex batch carry
scheme
- Wrong store ordering resulting in corrupting data used in a later
calculation that corrupted the batch structure during carry
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd fixes from Jason Gunthorpe:
- An invalid VA range can be be put in a pages and eventually trigger
WARN_ON, reject it early
- Use of the wrong start index value when doing the complex batch carry
scheme
- Wrong store ordering resulting in corrupting data used in a later
calculation that corrupted the batch structure during carry
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd: Do not corrupt the pfn list when doing batch carry
iommufd: Fix unpinning of pages when an access is present
iommufd: Check for uptr overflow
These are some fixes to make sure the PWM state structure is always
initialized to a known state. Prior to this it could happen in some
situations that random data from the stack would leak into the data
structure and cause subtle bugs.
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Merge tag 'pwm/for-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm fixes from Thierry Reding:
"These are some fixes to make sure the PWM state structure is always
initialized to a known state.
Prior to this it could happen in some situations that random data from
the stack would leak into the data structure and cause subtle bugs"
* tag 'pwm/for-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: Zero-initialize the pwm_state passed to driver's .get_state()
pwm: meson: Explicitly set .polarity in .get_state()
pwm: sprd: Explicitly set .polarity in .get_state()
pwm: iqs620a: Explicitly set .polarity in .get_state()
pwm: cros-ec: Explicitly set .polarity in .get_state()
pwm: hibvt: Explicitly set .polarity in .get_state()
Mostly i915 fixes: dp mst for compression/dsc, perf ioctl uaf, ctx rpm
accounting, gt reset vs huc loading.
And a few individual driver fixes: ivpu dma fence&suspend, panfrost
mmap, nouveau color depth
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Merge tag 'drm-fixes-2023-04-06' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Daniel Vetter:
"Mostly i915 fixes: dp mst for compression/dsc, perf ioctl uaf, ctx rpm
accounting, gt reset vs huc loading.
And a few individual driver fixes: ivpu dma fence&suspend, panfrost
mmap, nouveau color depth"
* tag 'drm-fixes-2023-04-06' of git://anongit.freedesktop.org/drm/drm:
accel/ivpu: Fix S3 system suspend when not idle
accel/ivpu: Add dma fence to command buffers only
drm/i915: Fix context runtime accounting
drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
drm/i915: Use compressed bpp when calculating m/n value for DP MST DSC
drm/i915/huc: Cancel HuC delayed load timer on reset.
drm/i915/ttm: fix sparse warning
drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path
drm/nouveau/disp: Support more modes by checking with lower bpc
The majority of changes here are various fixes for Intel drivers,
while there is a change in ASoC PCM core for the format constraints.
In addition, a workaround for HD-audio HDMI regressions and usual
HD-audio quirks are found.
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Merge tag 'sound-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The majority of changes here are various fixes for Intel drivers,
and there is a change in ASoC PCM core for the format constraints.
In addition, a workaround for HD-audio HDMI regressions and usual
HD-audio quirks are found"
* tag 'sound-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/hdmi: Preserve the previous PCM device upon re-enablement
ALSA: hda/realtek: Add quirk for Clevo X370SNW
ALSA: hda/realtek: fix mute/micmute LEDs for a HP ProBook
ASoC: SOF: avoid a NULL dereference with unsupported widgets
ASoC: da7213.c: add missing pm_runtime_disable()
ASoC: hdac_hdmi: use set_stream() instead of set_tdm_slots()
ASoC: codecs: lpass: fix the order or clks turn off during suspend
ASoC: Intel: bytcr_rt5640: Add quirk for the Acer Iconia One 7 B1-750
ASoC: SOF: ipc4: Ensure DSP is in D0I0 during sof_ipc4_set_get_data()
ASoC: amd: yc: Add DMI entries to support Victus by HP Laptop 16-e1xxx (8A22)
ASoC: soc-pcm: fix hw->formats cleared by soc_pcm_hw_init() for dpcm
ASoC: Intel: soc-acpi: add table for Intel 'Rooks County' NUC M15
ASOC: Intel: sof_sdw: add quirk for Intel 'Rooks County' NUC M15
Highlights:
- more think-lmi fixes
- 1 DMI quirk addition
The following is an automated git shortlog grouped by driver:
think-lmi:
- Clean up display of current_value on Thinkstation
- Fix memory leaks when parsing ThinkStation WMI strings
- Fix memory leak when showing current settings
thinkpad_acpi:
- Add missing T14s Gen1 type to s2idle quirk list
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Merge tag 'platform-drivers-x86-v6.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- more think-lmi fixes
- one DMI quirk addition
* tag 'platform-drivers-x86-v6.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: thinkpad_acpi: Add missing T14s Gen1 type to s2idle quirk list
platform/x86: think-lmi: Clean up display of current_value on Thinkstation
platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
platform/x86: think-lmi: Fix memory leak when showing current settings
These are minor fixes to address false-positive build warnings:
Some of the less common I/O accessors are missing __force casts and
cause sparse warnings for their implied byteswap, and a recent change
to __generic_cmpxchg_local() causes a warning about constant integer
truncation.
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Merge tag 'asm-generic-fixes-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fixes from Arnd Bergmann:
"These are minor fixes to address false-positive build warnings:
Some of the less common I/O accessors are missing __force casts and
cause sparse warnings for their implied byteswap, and a recent change
to __generic_cmpxchg_local() causes a warning about constant integer
truncation"
* tag 'asm-generic-fixes-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: avoid __generic_cmpxchg_local warnings
asm-generic/io.h: suppress endianness warnings for relaxed accessors
asm-generic/io.h: suppress endianness warnings for readq() and writeq()
Some DT devices already have phy device configured in the DT/ACPI.
Current implementation scans for a phy unconditionally even though
there is a phy listed in the DT/ACPI and already attached.
We should check the fwnode if there is any phy device listed in
fwnode and decide whether to scan for a phy to attach to.
Fixes: fe2cfbc968 ("net: stmmac: check if MAC needs to attach to a PHY")
Reported-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/lkml/20230403212434.296975-1-martin.blumenstingl@googlemail.com/
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Shahab Vahedi <shahab@synopsys.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Link: https://lore.kernel.org/r/20230406024541.3556305-1-michael.wei.hong.sit@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Queue reset was moved out from __init_dma_rx_desc_rings() and
__init_dma_tx_desc_rings() functions. Thus, the driver fails to transmit
and receive packet after XDP prog setup.
This commit adds the missing queue reset into stmmac_xdp_open() function.
Fixes: f9ec5723c3 ("net: ethernet: stmicro: stmmac: move queue reset to dedicated functions")
Cc: <stable@vger.kernel.org> # 6.0+
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230404044823.3226144-1-yoong.siang.song@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When deleting the netns and recreating a new one while re-adding the
veth interface, there is a small window of time during which the old
veth interface has not yet been removed. This can cause the new addition
to fail. To resolve this issue, we can either wait for a short while to
ensure that the old veth interface is deleted, or we can specifically
remove the veth interface.
Before this patch:
# ./rps_default_mask.sh
empty rps_default_mask [ ok ]
changing rps_default_mask dont affect existing devices [ ok ]
changing rps_default_mask dont affect existing netns [ ok ]
changing rps_default_mask affect newly created devices [ ok ]
changing rps_default_mask don't affect newly child netns[II][ ok ]
rps_default_mask is 0 by default in child netns [ ok ]
RTNETLINK answers: File exists
changing rps_default_mask in child ns don't affect the main one[ ok ]
cat: /sys/class/net/vethC11an1/queues/rx-0/rps_cpus: No such file or directory
changing rps_default_mask in child ns affects new childns devices./rps_default_mask.sh: line 36: [: -eq: unary operator expected
[fail] expected 1 found
changing rps_default_mask in child ns don't affect existing devices[ ok ]
After this patch:
# ./rps_default_mask.sh
empty rps_default_mask [ ok ]
changing rps_default_mask dont affect existing devices [ ok ]
changing rps_default_mask dont affect existing netns [ ok ]
changing rps_default_mask affect newly created devices [ ok ]
changing rps_default_mask don't affect newly child netns[II][ ok ]
rps_default_mask is 0 by default in child netns [ ok ]
changing rps_default_mask in child ns don't affect the main one[ ok ]
changing rps_default_mask in child ns affects new childns devices[ ok ]
changing rps_default_mask in child ns don't affect existing devices[ ok ]
Fixes: 3a7d84eae0 ("self-tests: more rps self tests")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20230404072411.879476-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Not all fec MDIO bus drivers support C45 mode transactions. The older fec
hardware block in many ColdFire SoCs does not appear to support them, at
least according to most of the different ColdFire SoC reference manuals.
The bits used to generate C45 access on the iMX parts, in the OP field
of the MMFR register, are documented as generating non-compliant MII
frames (it is not documented as to exactly how they are non-compliant).
Commit 8d03ad1ab0 ("net: fec: Separate C22 and C45 transactions")
means the fec driver will always register c45 MDIO read and write
methods. During probe these will always be accessed now generating
non-compliant MII accesses on ColdFire based devices.
Add a quirk define, FEC_QUIRK_HAS_MDIO_C45, that can be used to
distinguish silicon that supports MDIO C45 framing or not. Add this to
all the existing iMX quirks, so they will be behave as they do now (*).
(*) it seems that some iMX parts may not support C45 transactions either.
The iMX25 and iMX50 Reference Manuals contain similar wording to
the ColdFire Reference Manuals on this.
Fixes: 8d03ad1ab0 ("net: fec: Separate C22 and C45 transactions")
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230404052207.3064861-1-gerg@linux-m68k.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mt76 has a fix for leaking cleartext frames on a certain scenario and
two firmware file handling related fixes. For brcmfmac we have a fix
for an older SDIO suspend regression and for ath11k avoiding a kernel
crash during hibernation with SUSE kernels.
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Merge tag 'wireless-2023-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Kalle Valo says:
====================
wireless fixes for v6.3
mt76 has a fix for leaking cleartext frames on a certain scenario and
two firmware file handling related fixes. For brcmfmac we have a fix
for an older SDIO suspend regression and for ath11k avoiding a kernel
crash during hibernation with SUSE kernels.
* tag 'wireless-2023-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mt76: ignore key disable commands
wifi: ath11k: reduce the MHI timeout to 20s
wifi: mt76: mt7921: fix fw used for offload check for mt7922
wifi: mt76: mt7921: Fix use-after-free in fw features query.
wifi: brcmfmac: Fix SDIO suspend/resume regression
====================
Link: https://lore.kernel.org/r/20230405105536.4E946C433D2@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'linux-can-fixes-for-6.3-20230405' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2023-04-05
The first patch is by Oleksij Rempel and fixes a out-of-bounds memory
access in the j1939 protocol.
The remaining 3 patches target the ISOTP protocol. Oliver Hartkopp
fixes the ISOTP protocol to pass information about dropped PDUs to the
user space via control messages. Michal Sojka's patch fixes poll() to
not forward false EPOLLOUT events. And Oliver Hartkopp fixes a race
condition between isotp_sendsmg() and isotp_release().
* tag 'linux-can-fixes-for-6.3-20230405' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: isotp: fix race between isotp_sendsmg() and isotp_release()
can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events
can: isotp: isotp_recvmsg(): use sock_recv_cmsgs() to get SOCK_RXQ_OVFL infos
can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access
====================
Link: https://lore.kernel.org/r/20230405092444.1802340-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2023-04-04 (ice)
This series contains updates to ice driver only.
Simei adjusts error path on adding VF Flow Director filters that were
not releasing all resources.
Lingyu adds setting/resetting of VF Flow Director filters counters
during initialization.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ice: Reset FDIR counter in FDIR init stage
ice: fix wrong fallback logic for FDIR
====================
Link: https://lore.kernel.org/r/20230404172306.450880-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Lenovo ThinkPad W530 uses a nvidia k1000m GPU. When this gets used
together with one of the older nvidia binary driver series (the latest
series does not support it), then backlight control does not work.
This is caused by commit 3dbc80a3e4 ("ACPI: video: Make backlight
class device registration a separate step (v2)") combined with
commit 5aa9d943e9 ("ACPI: video: Don't enable fallback path for
creating ACPI backlight by default").
After these changes the acpi_video# backlight device is only registered
when requested by a GPU driver calling acpi_video_register_backlight()
which the nvidia binary driver does not do.
I realize that using the nvidia binary driver is not a supported use-case
and users can workaround this by adding acpi_backlight=video on the kernel
commandline, but the ThinkPad W530 is a popular model under Linux users,
so it seems worthwhile to add a quirk for this.
I will also email Nvidia asking them to make the driver call
acpi_video_register_backlight() when an internal LCD panel is detected.
So maybe the next maintenance release of the drivers will fix this...
Fixes: 5aa9d943e9 ("ACPI: video: Don't enable fallback path for creating ACPI backlight by default")
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On the Apple iMac14,1 and iMac14,2 all-in-ones (monitors with builtin "PC")
the connection between the GPU and the panel is seen by the GPU driver as
regular DP instead of eDP, causing the GPU driver to never call
acpi_video_register_backlight().
(GPU drivers only call acpi_video_register_backlight() when an internal
panel is detected, to avoid non working acpi_video# devices getting
registered on desktops which unfortunately is a real issue.)
Fix the missing acpi_video# backlight device on these all-in-ones by
adding a acpi_backlight=video DMI quirk, so that video.ko will
immediately register the backlight device instead of waiting for
an acpi_video_register_backlight() call.
Fixes: 5aa9d943e9 ("ACPI: video: Don't enable fallback path for creating ACPI backlight by default")
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 3dbc80a3e4 ("ACPI: video: Make backlight class device
registration a separate step (v2)") combined with
commit 5aa9d943e9 ("ACPI: video: Don't enable fallback path for
creating ACPI backlight by default")
Means that the video.ko code now fully depends on the GPU driver calling
acpi_video_register_backlight() for the acpi_video# backlight class
devices to get registered.
This means that if the GPU driver does not do this, acpi_backlight=video
on the cmdline, or DMI quirks for selecting acpi_video# will not work.
This is a problem on for example Apple iMac14,1 all-in-ones where
the monitor's LCD panel shows up as a regular DP connection instead of
eDP so the GPU driver will not call acpi_video_register_backlight() [1].
Fix this by making video.ko directly register the acpi_video# devices
when these have been explicitly requested either on the cmdline or
through DMI quirks (rather then auto-detection being used).
[1] GPU drivers only call acpi_video_register_backlight() when an internal
panel is detected, to avoid non working acpi_video# devices getting
registered on desktops which unfortunately is a real issue.
Fixes: 5aa9d943e9 ("ACPI: video: Don't enable fallback path for creating ACPI backlight by default")
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Allow callers of __acpi_video_get_backlight_type() to pass a pointer
to a bool which will get set to false if the backlight-type comes from
the cmdline or a DMI quirk and set to true if auto-detection was used.
And make __acpi_video_get_backlight_type() non static so that it can
be called directly outside of video_detect.c .
While at it turn the acpi_video_get_backlight_type() and
acpi_video_backlight_use_native() wrappers into static inline functions
in include/acpi/video.h, so that we need to export one less symbol.
Fixes: 5aa9d943e9 ("ACPI: video: Don't enable fallback path for creating ACPI backlight by default")
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Dan reports that smatch complains about a potential uninitialized
variable being used in the compat alignment fixup code.
The logic is not wrong per se, but we do end up using an uninitialized
variable if reading the instruction that triggered the alignment fault
from user space faults, even if the fault ensures that the uninitialized
value doesn't propagate any further.
Given that we just give up and return 1 if any fault occurs when reading
the instruction, let's get rid of the 'success handling' pattern that
captures the fault in a variable and aborts later, and instead, just
return 1 immediately if any of the get_user() calls result in an
exception.
Fixes: 3fc24ef32d ("arm64: compat: Implement misalignment fixups for multiword loads")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202304021214.gekJ8yRc-lkp@intel.com/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230404103625.2386382-1-ardb@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
- Fix timerlat notification, as it was not triggering the
notify to users when a new max latency was hit.
- Do not trigger max latency if the tracing is off.
When tracing is off, the ring buffer is not updated, it
does not make sense to notify when there's a new max latency
detected by the tracer, as why that latency happened is not available.
The tracing logic still runs when the ring buffer is disabled, but
it should not be triggering notifications.
- Fix race on freeing the synthetic event "last_cmd" variable by
adding a mutex around it.
- Fix race between reader and writer of the ring buffer by adding
memory barriers. When the writer is still on the reader page
it must have its content visible on the buffer before it moves
the commit index that the reader uses to know how much content is
on the page.
- Make get_lock_parent_ip() always inlined, as it uses _THIS_IP_
and _RET_IP_, which gets broken if it is not inlined.
- Make __field(int, arr[5]) in a TRACE_EVENT() macro fail to build.
The field formats of trace events are calculated by using sizeof(type)
and other means by what is passed into the structure macros like
__field(). The __field() macro is only meant for atom types like
int, long, short, pointer, etc. It is not meant for arrays. But
the code will currently compile with arrays, but then the format
produced will be inaccurate, and user space parsing tools will break.
Two bugs have already been fixed, now add code that will make the
kernel fail to build if another trace event includes this buggy
field format.
- Fix boot up snapshot code:
Boot snapshots were triggering when not even asked for on the
kernel command line. This was caused by two bugs.
1) It would trigger a snapshot on any instance if one was created
from the kernel command line.
2) The error handling would only affect the top level instance.
So the fact that a snapshot was done on a instance that didn't
allocate a buffer triggered a warning written into the top level
buffer, and worse yet, disabled the top level buffer.
- Fix memory leak that was caused when an error was logged in a
trace buffer instance, and then the buffer instance was removed.
The allocated error log messages still need to be freed.
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Merge tag 'trace-v6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix timerlat notification, as it was not triggering the notify to
users when a new max latency was hit.
- Do not trigger max latency if the tracing is off.
When tracing is off, the ring buffer is not updated, it does not make
sense to notify when there's a new max latency detected by the
tracer, as why that latency happened is not available. The tracing
logic still runs when the ring buffer is disabled, but it should not
be triggering notifications.
- Fix race on freeing the synthetic event "last_cmd" variable by adding
a mutex around it.
- Fix race between reader and writer of the ring buffer by adding
memory barriers. When the writer is still on the reader page it must
have its content visible on the buffer before it moves the commit
index that the reader uses to know how much content is on the page.
- Make get_lock_parent_ip() always inlined, as it uses _THIS_IP_ and
_RET_IP_, which gets broken if it is not inlined.
- Make __field(int, arr[5]) in a TRACE_EVENT() macro fail to build.
The field formats of trace events are calculated by using
sizeof(type) and other means by what is passed into the structure
macros like __field(). The __field() macro is only meant for atom
types like int, long, short, pointer, etc. It is not meant for
arrays.
The code will currently compile with arrays, but then the format
produced will be inaccurate, and user space parsing tools will break.
Two bugs have already been fixed, now add code that will make the
kernel fail to build if another trace event includes this buggy field
format.
- Fix boot up snapshot code:
Boot snapshots were triggering when not even asked for on the kernel
command line. This was caused by two bugs:
1) It would trigger a snapshot on any instance if one was created
from the kernel command line.
2) The error handling would only affect the top level instance.
So the fact that a snapshot was done on a instance that didn't
allocate a buffer triggered a warning written into the top level
buffer, and worse yet, disabled the top level buffer.
- Fix memory leak that was caused when an error was logged in a trace
buffer instance, and then the buffer instance was removed.
The allocated error log messages still needed to be freed.
* tag 'trace-v6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Free error logs of tracing instances
tracing: Fix ftrace_boot_snapshot command line logic
tracing: Have tracing_snapshot_instance_cond() write errors to the appropriate instance
tracing: Error if a trace event has an array for a __field()
tracing/osnoise: Fix notify new tracing_max_latency
tracing/timerlat: Notify new max thread latency
ftrace: Mark get_lock_parent_ip() __always_inline
ring-buffer: Fix race while reader and writer are on the same page
tracing/synthetic: Fix races on freeing last_cmd
drm/i915 fixes for v6.3-rc6:
- Fix DP MST DSC M/N calculation to use compressed bpp
- Fix racy use-after-free in perf ioctl
- Fix context runtime accounting
- Fix handling of GT reset during HuC loading
- Fix use of unsigned vm_fault_t for error values
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87zg7mzomz.fsf@intel.com
In the j1939_tp_tx_dat_new() function, an out-of-bounds memory access
could occur during the memcpy() operation if the size of skb->cb is
larger than the size of struct j1939_sk_buff_cb. This is because the
memcpy() operation uses the size of skb->cb, leading to a read beyond
the struct j1939_sk_buff_cb.
Updated the memcpy() operation to use the size of struct
j1939_sk_buff_cb instead of the size of skb->cb. This ensures that the
memcpy() operation only reads the memory within the bounds of struct
j1939_sk_buff_cb, preventing out-of-bounds memory access.
Additionally, add a BUILD_BUG_ON() to check that the size of skb->cb
is greater than or equal to the size of struct j1939_sk_buff_cb. This
ensures that the skb->cb buffer is large enough to hold the
j1939_sk_buff_cb structure.
Fixes: 9d71dd0c70 ("can: add support of SAE J1939 protocol")
Reported-by: Shuangpeng Bai <sjb7183@psu.edu>
Tested-by: Shuangpeng Bai <sjb7183@psu.edu>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://groups.google.com/g/syzkaller/c/G_LL-C3plRs/m/-8xCi6dCAgAJ
Link: https://lore.kernel.org/all/20230404073128.3173900-1-o.rempel@pengutronix.de
Cc: stable@vger.kernel.org
[mkl: rephrase commit message]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Wait for VPU to be idle in ivpu_pm_suspend_cb() before powering off
the device, so jobs are not lost and TDRs are not triggered after
resume.
Fixes: 852be13f3b ("accel/ivpu: Add PM support")
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230331113603.2802515-3-stanislaw.gruszka@linux.intel.com
Currently job->done_fence is added to every BO handle within a job. If job
handle (command buffer) is shared between multiple submits, KMD will add
the fence in each of them. Then bo_wait_ioctl() executed on command buffer
will exit only when all jobs containing that handle are done.
This creates deadlock scenario for user mode driver in case when job handle
is added as dependency of another job, because bo_wait_ioctl() of first job
will wait until second job finishes, and second job can not finish before
first one.
Having fences added only to job buffer handle allows user space to execute
bo_wait_ioctl() on the job even if it's handle is submitted with other job.
Fixes: cd7272215c ("accel/ivpu: Add command buffer submission logic")
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230331113603.2802515-2-stanislaw.gruszka@linux.intel.com
The kernel command line ftrace_boot_snapshot by itself is supposed to
trigger a snapshot at the end of boot up of the main top level trace
buffer. A ftrace_boot_snapshot=foo will do the same for an instance called
foo that was created by trace_instance=foo,...
The logic was broken where if ftrace_boot_snapshot was by itself, it would
trigger a snapshot for all instances that had tracing enabled, regardless
if it asked for a snapshot or not.
When a snapshot is requested for a buffer, the buffer's
tr->allocated_snapshot is set to true. Use that to know if a trace buffer
wants a snapshot at boot up or not.
Since the top level buffer is part of the ftrace_trace_arrays list,
there's no reason to treat it differently than the other buffers. Just
iterate the list if ftrace_boot_snapshot was specified.
Link: https://lkml.kernel.org/r/20230405022341.895334039@goodmis.org
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ross Zwisler <zwisler@google.com>
Fixes: 9c1c251d67 ("tracing: Allow boot instances to have snapshot buffers")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
If a trace instance has a failure with its snapshot code, the error
message is to be written to that instance's buffer. But currently, the
message is written to the top level buffer. Worse yet, it may also disable
the top level buffer and not the instance that had the issue.
Link: https://lkml.kernel.org/r/20230405022341.688730321@goodmis.org
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ross Zwisler <zwisler@google.com>
Fixes: 2824f50332 ("tracing: Make the snapshot trigger work with instances")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Non-GSO TCP packets whose SKBs' linear portion did not include the
entire TCP header were not populating the first Tx descriptor with
as many bytes as the vNIC expected. This change ensures that all
TCP packets populate the first descriptor with the correct number of
bytes.
Fixes: 893ce44df5 ("gve: Add basic driver framework for Compute Engine Virtual NIC")
Signed-off-by: Shailend Chand <shailend@google.com>
Link: https://lore.kernel.org/r/20230403172809.2939306-1-shailend@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the number of lanes was forced and then subsequently the user
omits this parameter, the ksettings->lanes is reset. The driver
should then reset the number of lanes to the device's default
for the specified speed.
However, although the ksettings->lanes is set to 0, the mod variable
is not set to true to indicate the driver and userspace should be
notified of the changes.
The consequence is that the same ethtool operation will produce
different results based on the initial state.
If the initial state is:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 2
Duplex: Full
Auto-negotiation: on
then executing 'ethtool -s swp1 speed 50000 autoneg off' will yield:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 2
Duplex: Full
Auto-negotiation: off
While if the initial state is:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 1
Duplex: Full
Auto-negotiation: off
executing the same 'ethtool -s swp1 speed 50000 autoneg off' results in:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 1
Duplex: Full
Auto-negotiation: off
This patch fixes this behavior. Omitting lanes will always results in
the driver choosing the default lane width for the chosen speed. In this
scenario, regardless of the initial state, the end state will be, e.g.,
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 2
Duplex: Full
Auto-negotiation: off
Fixes: 012ce4dd31 ("ethtool: Extend link modes settings uAPI with lanes")
Signed-off-by: Andy Roulin <aroulin@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/ac238d6b-8726-8156-3810-6471291dbc7f@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Kuniyuki Iwashima says:
====================
raw/ping: Fix locking in /proc/net/{raw,icmp}.
The first patch fixes a NULL deref for /proc/net/raw and second one fixes
the same issue for ping sockets.
The first patch also converts hlist_nulls to hlist, but this is because
the current code uses sk_nulls_for_each() for lockless readers, instead
of sk_nulls_for_each_rcu() which adds memory barrier, but raw sockets
does not use the nulls marker nor SLAB_TYPESAFE_BY_RCU in the first place.
OTOH, the ping sockets already uses sk_nulls_for_each_rcu(), and such
conversion can be posted later for net-next.
====================
Link: https://lore.kernel.org/r/20230403194959.48928-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After commit dbca1596bb ("ping: convert to RCU lookups, get rid
of rwlock"), we use RCU for ping sockets, but we should use spinlock
for /proc/net/icmp to avoid a potential NULL deref mentioned in
the previous patch.
Let's go back to using spinlock there.
Note we can convert ping sockets to use hlist instead of hlist_nulls
because we do not use SLAB_TYPESAFE_BY_RCU for ping sockets.
Fixes: dbca1596bb ("ping: convert to RCU lookups, get rid of rwlock")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Hide KVM_CAP_IRQFD_RESAMPLE if XIVE is enabled
s390:
* Fix handling of external interrupts in protected guests
x86:
* Resample the pending state of IOAPIC interrupts when unmasking them
* Fix usage of Hyper-V "enlightened TLB" on AMD
* Small fixes to real mode exceptions
* Suppress pending MMIO write exits if emulator detects exception
Documentation:
* Fix rST syntax
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"PPC:
- Hide KVM_CAP_IRQFD_RESAMPLE if XIVE is enabled
s390:
- Fix handling of external interrupts in protected guests
x86:
- Resample the pending state of IOAPIC interrupts when unmasking them
- Fix usage of Hyper-V "enlightened TLB" on AMD
- Small fixes to real mode exceptions
- Suppress pending MMIO write exits if emulator detects exception
Documentation:
- Fix rST syntax"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
docs: kvm: x86: Fix broken field list
KVM: PPC: Make KVM_CAP_IRQFD_RESAMPLE platform dependent
KVM: s390: pv: fix external interruption loop not always detected
KVM: nVMX: Do not report error code when synthesizing VM-Exit from Real Mode
KVM: x86: Clear "has_error_code", not "error_code", for RM exception injection
KVM: x86: Suppress pending MMIO write exits if emulator detects exception
KVM: x86/ioapic: Resample the pending state of an IRQ when unmasking
KVM: irqfd: Make resampler_list an RCU list
KVM: SVM: Flush Hyper-V TLB when required
