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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- New sensor driver: ov5693
- A new driver for STM32 Chrom-ART Accelerator
- Added V4L2 core helper functions for VP9 codec
- Hantro driver has gained support for VP9 codecs
- Added support for Maxim MAX96712 Quad GMSL2 Deserializer
- The staging atomisp driver has gained lots of improvements, fixes and
cleanups. It now works with userptr
- Lots of random driver improvements as usual
* tag 'media/v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (397 commits)
media: ipu3-cio2: Add support for instantiating i2c-clients for VCMs
media: ipu3-cio2: Call cio2_bridge_init() before anything else
media: ipu3-cio2: Defer probing until the PMIC is fully setup
media: hantro: Add support for Allwinner H6
media: dt-bindings: allwinner: document H6 Hantro G2 binding
media: hantro: Convert imx8m_vpu_g2_irq to helper
media: hantro: move postproc enablement for old cores
media: hantro: vp9: add support for legacy register set
media: hantro: vp9: use double buffering if needed
media: hantro: add support for reset lines
media: hantro: Fix probe func error path
media: i2c: hi846: use pm_runtime_force_suspend/resume for system suspend
media: i2c: hi846: check return value of regulator_bulk_disable()
media: hi556: Support device probe in non-zero ACPI D state
media: ov5675: Support device probe in non-zero ACPI D state
media: imx208: Support device probe in non-zero ACPI D state
media: ov2740: support device probe in non-zero ACPI D state
media: ov5670: Support device probe in non-zero ACPI D state
media: ov8856: support device probe in non-zero ACPI D state
media: ov8865: Disable only enabled regulators on error path
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Linux 5.16-rc4
* tag 'v5.16-rc4': (984 commits)
Linux 5.16-rc4
KVM: SVM: Do not terminate SEV-ES guests on GHCB validation failure
KVM: SEV: Fall back to vmalloc for SEV-ES scratch area if necessary
KVM: SEV: Return appropriate error codes if SEV-ES scratch setup fails
parisc: Mark cr16 CPU clocksource unstable on all SMP machines
parisc: Fix "make install" on newer debian releases
sched/uclamp: Fix rq->uclamp_max not set on first enqueue
preempt/dynamic: Fix setup_preempt_mode() return value
cifs: avoid use of dstaddr as key for fscache client cookie
cifs: add server conn_id to fscache client cookie
cifs: wait for tcon resource_id before getting fscache super
cifs: fix missed refcounting of ipc tcon
x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
x86/entry: Use the correct fence macro after swapgs in kernel CR3
fget: check that the fd still exists after getting a ref to it
x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
powercap: DTPM: Drop unused local variable from init_dtpm()
io-wq: don't retry task_work creation failure on fatal conditions
serial: 8250_bcm7271: UART errors after resuming from S2
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Add the VP9 stateless decoder controls plus the documentation that goes
with it.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Co-developed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Co-developed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Add V4L2_COLORFX_SET_RGB color effects control, V4L2_CID_COLORFX_RGB
for RGB color setting.
with two mirror changes:
- change 0xFFFFFF to 0xffffff
- fix comments 2^24 to 2^24 - 1
[hverkuil: dropped spaces around + with V4L2_CID_BASE for consistency]
Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Pull drm updates from Dave Airlie:
"Highlights are support for privacy screens found in new laptops, a
bunch of nomodeset refactoring, and i915 enables ADL-P systems by
default, while starting to add RPL-S support.
vmwgfx adds GEM and support for OpenGL 4.3 features in userspace.
Lots of internal refactorings around dma reservations, and lots of
driver refactoring as well.
Summary:
core:
- add privacy screen support
- move nomodeset option into drm subsystem
- clean up nomodeset handling in drivers
- make drm_irq.c legacy
- fix stack_depot name conflicts
- remove DMA_BUF_SET_NAME ioctl restrictions
- sysfs: send hotplug event
- replace several DRM_* logging macros with drm_*
- move hashtable to legacy code
- add error return from gem_create_object
- cma-helper: improve interfaces, drop CONFIG_DRM_KMS_CMA_HELPER
- kernel.h related include cleanups
- support XRGB2101010 source buffers
ttm:
- don't include drm hashtable
- stop pruning fences after wait
- documentation updates
dma-buf:
- add dma_resv selftest
- add debugfs helpers
- remove dma_resv_get_excl_unlocked
- documentation
- make fences mandatory in dma_resv_add_excl_fence
dp:
- add link training delay helpers
gem:
- link shmem/cma helpers into separate modules
- use dma_resv iteratior
- import dma-buf namespace into gem helper modules
scheduler:
- fence grab fix
- lockdep fixes
bridge:
- switch to managed MIPI DSI helpers
- register and attach during probe fixes
- convert to YAML in several places.
panel:
- add bunch of new panesl
simpledrm:
- support FB_DAMAGE_CLIPS
- support virtual screen sizes
- add Apple M1 support
amdgpu:
- enable seamless boot for DCN 3.01
- runtime PM fixes
- use drm_kms_helper_connector_hotplug_event
- get all fences at once
- use generic drm fb helpers
- PSR/DPCD/LTTPR/DSC/PM/RAS/OLED/SRIOV fixes
- add smart trace buffer (STB) for supported GPUs
- display debugfs entries
- new SMU debug option
- Documentation update
amdkfd:
- IP discovery enumeration refactor
- interface between driver fixes
- SVM fixes
- kfd uapi header to define some sysfs bitfields.
i915:
- support VESA panel backlights
- enable ADL-P by default
- add eDP privacy screen support
- add Raptor Lake S (RPL-S) support
- DG2 page table support
- lots of GuC/HuC fw refactoring
- refactored i915->gt interfaces
- CD clock squashing support
- enable 10-bit gamma support
- update ADL-P DMC fw to v2.14
- enable runtime PM autosuspend by default
- ADL-P DSI support
- per-lane DP drive settings for ICL+
- add support for pipe C/D DMC firmware
- Atomic gamma LUT updates
- remove CCS FB stride restrictions on ADL-P
- VRR platform support for display 11
- add support for display audio codec keepalive
- lots of display refactoring
- fix runtime PM handling during PXP suspend
- improved eviction performance with async TTM moves
- async VMA unbinding improvements
- VMA locking refactoring
- improved error capture robustness
- use per device iommu checks
- drop bits stealing from i915_sw_fence function ptr
- remove dma_resv_prune
- add IC cache invalidation on DG2
nouveau:
- crc fixes
- validate LUTs in atomic check
- set HDMI AVI RGB quant to full
tegra:
- buffer objects reworks for dma-buf compat
- NVDEC driver uAPI support
- power management improvements
etnaviv:
- IOMMU enabled system support
- fix > 4GB command buffer mapping
- close a DoS vector
- fix spurious GPU resets
ast:
- fix i2c initialization
rcar-du:
- DSI output support
exynos:
- replace legacy gpio interface
- implement generic GEM object mmap
msm:
- dpu plane state cleanup in prep for multirect
- dpu debugfs cleanups
- dp support for sc7280
- a506 support
- removal of struct_mutex
- remove old eDP sub-driver
anx7625:
- support MIPI DSI input
- support HDMI audio
- fix reading EDID
lvds:
- fix bridge DT bindings
megachips:
- probe both bridges before registering
dw-hdmi:
- allow interlace on bridge
ps8640:
- enable runtime PM
- support aux-bus
tx358768:
- enable reference clock
- add pulse mode support
ti-sn65dsi86:
- use regmap bulk write
- add PWM support
etnaviv:
- get all fences at once
gma500:
- gem object cleanups
kmb:
- enable fb console
radeon:
- use dma_resv_wait_timeout
rockchip:
- add DSP hold timeout
- suspend/resume fixes
- PLL clock fixes
- implement mmap in GEM object functions
- use generic fbdev emulation
sun4i:
- use CMA helpers without vmap support
vc4:
- fix HDMI-CEC hang with display is off
- power on HDMI controller while disabling
- support 4K@60Hz modes
- support 10-bit YUV 4:2:0 output
vmwgfx:
- fix leak on probe errors
- fail probing on broken hosts
- new placement for MOB page tables
- hide internal BOs from userspace
- implement GEM support
- implement GL 4.3 support
virtio:
- overflow fixes
xen:
- implement mmap as GEM object function
omapdrm:
- fix scatterlist export
- support virtual planes
mediatek:
- MT8192 support
- CMDQ refinement"
* tag 'drm-next-2022-01-07' of git://anongit.freedesktop.org/drm/drm: (1241 commits)
drm/amdgpu: no DC support for headless chips
drm/amd/display: fix dereference before NULL check
drm/amdgpu: always reset the asic in suspend (v2)
drm/amdgpu: put SMU into proper state on runpm suspending for BOCO capable platform
drm/amd/display: Fix the uninitialized variable in enable_stream_features()
drm/amdgpu: fix runpm documentation
amdgpu/pm: Make sysfs pm attributes as read-only for VFs
drm/amdgpu: save error count in RAS poison handler
drm/amdgpu: drop redundant semicolon
drm/amd/display: get and restore link res map
drm/amd/display: support dynamic HPO DP link encoder allocation
drm/amd/display: access hpo dp link encoder only through link resource
drm/amd/display: populate link res in both detection and validation
drm/amd/display: define link res and make it accessible to all link interfaces
drm/amd/display: 3.2.167
drm/amd/display: [FW Promotion] Release 0.0.98
drm/amd/display: Undo ODM combine
drm/amd/display: Add reg defs for DCN303
drm/amd/display: Changed pipe split policy to allow for multi-display pipe split
drm/amd/display: Set optimize_pwr_state for DCN31
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amdgpu:
- Add some display debugfs entries
- RAS fixes
- SR-IOV fixes
- W=1 fixes
- Documentation fixes
- IH timestamp fix
- Misc power fixes
- IP discovery fixes
- Large driver documentation updates
- Multi-GPU memory use reductions
- Misc display fixes and cleanups
- Add new SMU debug option
amdkfd:
- SVM fixes
radeon:
- Fix typo in comment
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216202731.5900-1-alexander.deucher@amd.com
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Signed-off-by: Yann Dirson <ydirson@free.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Backmerging for v5.16-rc5. Resolves a conflict between drm-misc-next
and drm-misc-fixes in the vc4 driver.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()")
Just a bunch of adjacent changes conflicts, even the big pile of them
in vc4.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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These bits are de-facto part of the uAPI, so declare them in a uAPI header.
The corresponding bit-fields and enums in user mode are defined in
https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/blob/master/include/hsakmttypes.h
HSA_CAP_... -> HSA_CAPABILITY
HSA_MEM_HEAP_TYPE_... -> HSA_HEAPTYPE
HSA_MEM_FLAGS_... -> HSA_MEMORYPROPERTY
HSA_CACHE_TYPE_... -> HsaCacheType
HSA_IOLINK_TYPE_... -> HSA_IOLINKTYPE
HSA_IOLINK_FLAGS_... -> HSA_LINKPROPERTY
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Adds a format that is 3 10bit YUV 4:2:0 samples packed into
a 32bit word (with 2 spare bits).
Supported on Broadcom BCM2711 chips.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20211215091739.135042-2-maxime@cerno.tech
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There are a few details specific to the GETFB2 IOCTL.
It's not immediately clear how user-space should check for the
number of planes. Suggest using the handles field or the pitches
field.
The modifier array is filled with zeroes, ie. DRM_FORMAT_MOD_LINEAR.
So explicitly tell user-space to not look at it unless the flag is
set.
Changes in v2 (Daniel):
- Mention that handles should be used to compute the number of planes,
and only refer to pitches as a fallback.
- Reword bit about undefined modifier.
Signed-off-by: Simon Ser <contact@emersion.fr>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211123112400.22245-1-contact@emersion.fr
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To make sure we're running on top of hardware that can support
GL4.3 we need to add a way of querying for those capabilities.
DRM_VMW_PARAM_GL43 allows userspace to check for presence of
GL4.3 capable contexts.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211206172620.3139754-10-zack@kde.org
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from.. Santa?
No regressions on our radar at this point. The igc problem fixed here
was the last one I was tracking but it was broken in previous
releases, anyway. Mostly driver fixes and a couple of largish SMC
fixes.
Current release - regressions:
- xsk: initialise xskb free_list_node, fixup for a -rc7 fix
Current release - new code bugs:
- mlx5: handful of minor fixes:
- use first online CPU instead of hard coded CPU
- fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'
- fix skb memory leak when TC classifier action offloads are disabled
- fix memory leak with rules with internal OvS port
Previous releases - regressions:
- igc: do not enable crosstimestamping for i225-V models
Previous releases - always broken:
- udp: use datalen to cap ipv6 udp max gso segments
- fix use-after-free in tw_timer_handler due to early free of stats
- smc: fix kernel panic caused by race of smc_sock
- smc: don't send CDC/LLC message if link not ready, avoid timeouts
- sctp: use call_rcu to free endpoint, avoid UAF in sock diag
- bridge: mcast: add and enforce query interval minimum
- usb: pegasus: do not drop long Ethernet frames
- mlx5e: fix ICOSQ recovery flow for XSK
- nfc: uapi: use kernel size_t to fix user-space builds"
* tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
fsl/fman: Fix missing put_device() call in fman_port_probe
selftests: net: using ping6 for IPv6 in udpgro_fwd.sh
Documentation: fix outdated interpretation of ip_no_pmtu_disc
net/ncsi: check for error return from call to nla_put_u32
net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper
net: fix use-after-free in tw_timer_handler
selftests: net: Fix a typo in udpgro_fwd.sh
selftests/net: udpgso_bench_tx: fix dst ip argument
net: bridge: mcast: add and enforce startup query interval minimum
net: bridge: mcast: add and enforce query interval minimum
ipv6: raw: check passed optlen before reading
xsk: Initialise xskb free_list_node
net/mlx5e: Fix wrong features assignment in case of error
net/mlx5e: TC, Fix memory leak with rules with internal port
ionic: Initialize the 'lif->dbid_inuse' bitmap
igc: Fix TX timestamp support for non-MSI-X platforms
igc: Do not enable crosstimestamping for i225-V models
net/smc: fix kernel panic caused by race of smc_sock
net/smc: don't send CDC/LLC message if link not ready
NFC: st21nfca: Fix memory leak in device probe and remove
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Fix user-space builds if it includes /usr/include/linux/nfc.h before
some of other headers:
/usr/include/linux/nfc.h:281:9: error: unknown type name ‘size_t’
281 | size_t service_name_len;
| ^~~~~~
Fixes: d646960f7986 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace sa_family_t with __kernel_sa_family_t to fix the following
linux/nfc.h userspace compilation errors:
/usr/include/linux/nfc.h:266:2: error: unknown type name 'sa_family_t'
sa_family_t sa_family;
/usr/include/linux/nfc.h:274:2: error: unknown type name 'sa_family_t'
sa_family_t sa_family;
Fixes: 23b7869c0fd0 ("NFC: add the NFC socket raw protocol")
Fixes: d646960f7986 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This macro is defined by glibc itself, which makes the issue go unnoticed on
those systems. On non-glibc systems it causes build failures on several
utilities and libraries, like bpftool and objtool.
Fixes: 1d509f2a6ebc ("x86/insn: Support big endian cross-compiles")
Fixes: 2d7ce0e8a704 ("tools/virtio: more stubs")
Fixes: 3fb321fde22d ("selftests/net: ipv6 flowlabel")
Fixes: 50b3ed57dee9 ("selftests/bpf: test bpf flow dissection")
Fixes: 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE")
Fixes: a4b2061242ec ("tools include uapi: Grab a copy of linux/in.h")
Fixes: b12d6ec09730 ("bpf: btf: add btf print functionality")
Fixes: c0dd967818a2 ("tools, include: Grab a copy of linux/erspan.h")
Fixes: c4b6014e8bb0 ("tools: Add copy of perf_event.h to tools/include/linux/")
Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20211115134647.1921-1-ismael@iodev.co.uk
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes, including fixes from mac80211, wifi, bpf.
Relatively large batches of fixes from BPF and the WiFi stack, calm in
general networking.
Current release - regressions:
- dpaa2-eth: fix buffer overrun when reporting ethtool statistics
Current release - new code bugs:
- bpf: fix incorrect state pruning for <8B spill/fill
- iavf:
- add missing unlocks in iavf_watchdog_task()
- do not override the adapter state in the watchdog task (again)
- mlxsw: spectrum_router: consolidate MAC profiles when possible
Previous releases - regressions:
- mac80211 fixes:
- rate control, avoid driver crash for retransmitted frames
- regression in SSN handling of addba tx
- a memory leak where sta_info is not freed
- marking TX-during-stop for TX in in_reconfig, prevent stall
- cfg80211: acquire wiphy mutex on regulatory work
- wifi drivers: fix build regressions and LED config dependency
- virtio_net: fix rx_drops stat for small pkts
- dsa: mv88e6xxx: unforce speed & duplex in mac_link_down()
Previous releases - always broken:
- bpf fixes:
- kernel address leakage in atomic fetch
- kernel address leakage in atomic cmpxchg's r0 aux reg
- signed bounds propagation after mov32
- extable fixup offset
- extable address check
- mac80211:
- fix the size used for building probe request
- send ADDBA requests using the tid/queue of the aggregation
session
- agg-tx: don't schedule_and_wake_txq() under sta->lock, avoid
deadlocks
- validate extended element ID is present
- mptcp:
- never allow the PM to close a listener subflow (null-defer)
- clear 'kern' flag from fallback sockets, prevent crash
- fix deadlock in __mptcp_push_pending()
- inet_diag: fix kernel-infoleak for UDP sockets
- xsk: do not sleep in poll() when need_wakeup set
- smc: avoid very long waits in smc_release()
- sch_ets: don't remove idle classes from the round-robin list
- netdevsim:
- zero-initialize memory for bpf map's value, prevent info leak
- don't let user space overwrite read only (max) ethtool parms
- ixgbe: set X550 MDIO speed before talking to PHY
- stmmac:
- fix null-deref in flower deletion w/ VLAN prio Rx steering
- dwmac-rk: fix oob read in rk_gmac_setup
- ice: time stamping fixes
- systemport: add global locking for descriptor life cycle"
* tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (89 commits)
bpf, selftests: Fix racing issue in btf_skc_cls_ingress test
selftest/bpf: Add a test that reads various addresses.
bpf: Fix extable address check.
bpf: Fix extable fixup offset.
bpf, selftests: Add test case trying to taint map value pointer
bpf: Make 32->64 bounds propagation slightly more robust
bpf: Fix signed bounds propagation after mov32
sit: do not call ipip6_dev_free() from sit_init_net()
net: systemport: Add global locking for descriptor lifecycle
net/smc: Prevent smc_release() from long blocking
net: Fix double 0x prefix print in SKB dump
virtio_net: fix rx_drops stat for small pkts
dsa: mv88e6xxx: fix debug print for SPEED_UNFORCED
sfc_ef100: potential dereference of null pointer
net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup
net: usb: lan78xx: add Allied Telesis AT29M2-AF
net/packet: rx_owner_map depends on pg_vec
netdevsim: Zero-initialize memory for new map's value in function nsim_bpf_map_alloc
dpaa2-eth: fix ethtool statistics
ixgbe: set X550 MDIO speed before talking to PHY
...
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'loc_id' and 'rem_id' are set in all events linked to subflows but those
were missing in the events description in the comments.
Fixes: b911c97c7dc7 ("mptcp: add netlink event support")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge misc fixes from Andrew Morton:
"21 patches.
Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm
(mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits)
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
hugetlbfs: fix issue of preallocation of gigantic pages can't work
mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
mm/slub: fix endianness bug for alloc/free_traces attributes
selftests/damon: split test cases
selftests/damon: test debugfs file reads/writes with huge count
selftests/damon: test wrong DAMOS condition ranges input
selftests/damon: test DAMON enabling with empty target_ids case
selftests/damon: skip test if DAMON is running
mm/damon/vaddr-test: remove unnecessary variables
mm/damon/vaddr-test: split a test function having >1024 bytes frame size
mm/damon/vaddr: remove an unnecessary warning message
mm/damon/core: remove unnecessary error messages
mm/damon/dbgfs: remove an unnecessary error message
mm/damon/core: use better timer mechanisms selection threshold
mm/damon/core: fix fake load reports due to uninterruptible sleeps
timers: implement usleep_idle_range()
filemap: remove PageHWPoison check from next_uptodate_page()
mailmap: update email address for Guo Ren
MAINTAINERS: update kdump maintainers
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This limit has not been updated since 2008, when it was increased to 64
KiB at the request of GnuPG. Until recently, the main use-cases for this
feature were (1) preventing sensitive memory from being swapped, as in
GnuPG's use-case; and (2) real-time use-cases. In the first case, little
memory is called for, and in the second case, the user is generally in a
position to increase it if they need more.
The introduction of IOURING_REGISTER_BUFFERS adds a third use-case:
preparing fixed buffers for high-performance I/O. This use-case will take
as much of this memory as it can get, but is still limited to 64 KiB by
default, which is very little. This increases the limit to 8 MB, which
was chosen fairly arbitrarily as a more generous, but still conservative,
default value.
It is also possible to raise this limit in userspace. This is easily
done, for example, in the use-case of a network daemon: systemd, for
instance, provides for this via LimitMEMLOCK in the service file; OpenRC
via the rc_ulimit variables. However, there is no established userspace
facility for configuring this outside of daemons: end-user applications do
not presently have access to a convenient means of raising their limits.
The buck, as it were, stops with the kernel. It's much easier to address
it here than it is to bring it to hundreds of distributions, and it can
only realistically be relied upon to be high-enough by end-user software
if it is more-or-less ubiquitous. Most distros don't change this
particular rlimit from the kernel-supplied default value, so a change here
will easily provide that ubiquity.
Link: https://lkml.kernel.org/r/20211028080813.15966-1-sir@cmpwn.com
Signed-off-by: Drew DeVault <sir@cmpwn.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andrew Dona-Couch <andrew@donacou.ch>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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signalfd_poll() and binder_poll() are special in that they use a
waitqueue whose lifetime is the current task, rather than the struct
file as is normally the case. This is okay for blocking polls, since a
blocking poll occurs within one task; however, non-blocking polls
require another solution. This solution is for the queue to be cleared
before it is freed, by sending a POLLFREE notification to all waiters.
Unfortunately, only eventpoll handles POLLFREE. A second type of
non-blocking poll, aio poll, was added in kernel v4.18, and it doesn't
handle POLLFREE. This allows a use-after-free to occur if a signalfd or
binder fd is polled with aio poll, and the waitqueue gets freed.
Fix this by making aio poll handle POLLFREE.
A patch by Ramji Jiyani <ramjiyani@google.com>
(https://lore.kernel.org/r/20211027011834.2497484-1-ramjiyani@google.com)
tried to do this by making aio_poll_wake() always complete the request
inline if POLLFREE is seen. However, that solution had two bugs.
First, it introduced a deadlock, as it unconditionally locked the aio
context while holding the waitqueue lock, which inverts the normal
locking order. Second, it didn't consider that POLLFREE notifications
are missed while the request has been temporarily de-queued.
The second problem was solved by my previous patch. This patch then
properly fixes the use-after-free by handling POLLFREE in a
deadlock-free way. It does this by taking advantage of the fact that
freeing of the waitqueue is RCU-delayed, similar to what eventpoll does.
Fixes: 2c14fa838cbe ("aio: implement IOCB_CMD_POLL")
Cc: <stable@vger.kernel.org> # v4.18+
Link: https://lore.kernel.org/r/20211209010455.42744-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
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Pull drm fixes from Dave Airlie:
"Bit of an uptick in patch count this week, though it's all relatively
small overall.
I suspect msm has been queuing up a few fixes to skew it here.
Otherwise amdgpu has a scattered bunch of small fixes, and then some
vc4, i915.
virtio-gpu changes an rc1 introduced uAPI mistake, and makes it
operate more like other drivers. This should be fine as no userspace
relies on the behaviour yet.
Summary:
dma-buf:
- memory leak fix
msm:
- kasan found memory overwrite
- mmap flags
- fencing error bug
- ioctl NULL ptr
- uninit var
- devfreqless devices fix
- dsi lanes fix
- dp: avoid unpowered aux xfers
amdgpu:
- IP discovery based enumeration fixes
- vkms fixes
- DSC fixes for DP MST
- Audio fix for hotplug with tiled displays
- Misc display fixes
- DP tunneling fix
- DP fix
- Aldebaran fix
amdkfd:
- Locking fix
- Static checker fix
- Fix double free
i915:
- backlight regression
- Intel HDR backlight detection fix
- revert TGL workaround that caused hangs
virtio-gpu:
- switch back to drm_poll
vc4:
- memory leak
- error check fix
- HVS modesetting fixes"
* tag 'drm-fixes-2021-12-03-1' of git://anongit.freedesktop.org/drm/drm: (41 commits)
Revert "drm/i915: Implement Wa_1508744258"
drm/amdkfd: process_info lock not needed for svm
drm/amdgpu: adjust the kfd reset sequence in reset sriov function
drm/amd/display: add connector type check for CRC source set
drm/amdkfd: fix double free mem structure
drm/amdkfd: set "r = 0" explicitly before goto
drm/amd/display: Add work around for tunneled MST.
drm/amd/display: Fix for the no Audio bug with Tiled Displays
drm/amd/display: Clear DPCD lane settings after repeater training
drm/amd/display: Allow DSC on supported MST branch devices
drm/amdgpu: Don't halt RLC on GFX suspend
drm/amdgpu: fix the missed handling for SDMA2 and SDMA3
drm/amdgpu: check atomic flag to differeniate with legacy path
drm/amdgpu: cancel the correct hrtimer on exit
drm/amdgpu/sriov/vcn: add new vcn ip revision check case for SIENNA_CICHLID
drm/i915/dp: Perform 30ms delay after source OUI write
dma-buf: system_heap: Use 'for_each_sgtable_sg' in pages free flow
drm/i915: Add support for panels with VESA backlights with PWM enable/disable
drm/vc4: kms: Fix previous HVS commit wait
drm/vc4: kms: Don't duplicate pending commit
...
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The current virtgpu implementation of poll(..) drops events
when VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK is enabled (otherwise
it's like a normal DRM driver).
This is because paravirtualized userspaces receives responses in a
buffer of type BLOB_MEM_GUEST, not by read(..).
To be in line with other DRM drivers and avoid specialized behavior,
it is possible to define a dummy event for virtgpu. Paravirtualized
userspace will now have to call read(..) on the DRM fd to receive the
dummy event.
Fixes: b10790434cf2 ("drm/virtgpu api: create context init feature")
Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20211122232210.602-2-gurchetansingh@google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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The description of ETH_P_802_3_MIN is misleading.
The value of EthernetType in Ethernet II frame is more than 0x0600,
the value of Length in 802.3 frame is less than 0x0600.
Signed-off-by: Xiayu Zhang <Xiayu.Zhang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull virtio-mem update from David Hildenbrand:
"Support the VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature in virtio-mem,
now that "accidential" access to logically unplugged memory inside
added Linux memory blocks is no longer possible, because we:
- Removed /dev/kmem in commit bbcd53c96071 ("drivers/char: remove
/dev/kmem for good")
- Disallowed access to virtio-mem device memory via /dev/mem in
commit 2128f4e21aa ("virtio-mem: disallow mapping virtio-mem memory
via /dev/mem")
- Sanitized access to virtio-mem device memory via /proc/kcore in
commit 0daa322b8ff9 ("fs/proc/kcore: don't read offline sections,
logically offline pages and hwpoisoned pages")
- Sanitized access to virtio-mem device memory via /proc/vmcore in
commit ce2814622e84 ("virtio-mem: kdump mode to sanitize
/proc/vmcore access")
The new VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature that will be
required by some hypervisors implementing virtio-mem in the near
future, so let's support it now that we safely can"
* tag 'virtio-mem-for-5.16' of git://github.com/davidhildenbrand/linux:
virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE
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The initial virtio-mem spec states that while unplugged memory should not
be read, the device still has to allow for reading unplugged memory inside
the usable region. The primary motivation for this default handling was
to simplify bringup of virtio-mem, because there were corner cases where
Linux might have accidentially read unplugged memory inside added Linux
memory blocks.
In the meantime, we:
1. Removed /dev/kmem in commit bbcd53c96071 ("drivers/char: remove
/dev/kmem for good")
2. Disallowed access to virtio-mem device memory via /dev/mem in
commit 2128f4e21aa2 ("virtio-mem: disallow mapping virtio-mem memory via
/dev/mem")
3. Sanitized access to virtio-mem device memory via /proc/kcore in
commit 0daa322b8ff9 ("fs/proc/kcore: don't read offline sections,
logically offline pages and hwpoisoned pages")
4. Sanitized access to virtio-mem device memory via /proc/vmcore in
commit ce2814622e84 ("virtio-mem: kdump mode to sanitize /proc/vmcore
access")
"Accidential" access to unplugged memory is no longer possible; we can
support the new VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature that will be
required by some hypervisors implementing virtio-mem in the near future.
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Marek Kedzierski <mkedzier@redhat.com>
Cc: Hui Zhu <teawater@gmail.com>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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Pull more kvm updates from Paolo Bonzini:
"New x86 features:
- Guest API and guest kernel support for SEV live migration
- SEV and SEV-ES intra-host migration
Bugfixes and cleanups for x86:
- Fix misuse of gfn-to-pfn cache when recording guest steal time /
preempted status
- Fix selftests on APICv machines
- Fix sparse warnings
- Fix detection of KVM features in CPUID
- Cleanups for bogus writes to MSR_KVM_PV_EOI_EN
- Fixes and cleanups for MSR bitmap handling
- Cleanups for INVPCID
- Make x86 KVM_SOFT_MAX_VCPUS consistent with other architectures
Bugfixes for ARM:
- Fix finalization of host stage2 mappings
- Tighten the return value of kvm_vcpu_preferred_target()
- Make sure the extraction of ESR_ELx.EC is limited to architected
bits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (34 commits)
KVM: SEV: unify cgroup cleanup code for svm_vm_migrate_from
KVM: x86: move guest_pv_has out of user_access section
KVM: x86: Drop arbitrary KVM_SOFT_MAX_VCPUS
KVM: Move INVPCID type check from vmx and svm to the common kvm_handle_invpcid()
KVM: VMX: Add a helper function to retrieve the GPR index for INVPCID, INVVPID, and INVEPT
KVM: nVMX: Clean up x2APIC MSR handling for L2
KVM: VMX: Macrofy the MSR bitmap getters and setters
KVM: nVMX: Handle dynamic MSR intercept toggling
KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
KVM: x86: Don't update vcpu->arch.pv_eoi.msr_val when a bogus value was written to MSR_KVM_PV_EOI_EN
KVM: x86: Rename kvm_lapic_enable_pv_eoi()
KVM: x86: Make sure KVM_CPUID_FEATURES really are KVM_CPUID_FEATURES
KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows
kvm: mmu: Use fast PF path for access tracking of huge pages when possible
KVM: x86/mmu: Properly dereference rcu-protected TDP MMU sptep iterator
KVM: x86: inhibit APICv when KVM_GUESTDBG_BLOCKIRQ active
kvm: x86: Convert return type of *is_valid_rdpmc_ecx() to bool
KVM: x86: Fix recording of guest steal time / preempted status
selftest: KVM: Add intra host migration tests
selftest: KVM: Add open sev dev helper
...
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Add support for AMD SEV and SEV-ES intra-host migration support. Intra
host migration provides a low-cost mechanism for userspace VMM upgrades.
In the common case for intra host migration, we can rely on the normal
ioctls for passing data from one VMM to the next. SEV, SEV-ES, and other
confidential compute environments make most of this information opaque, and
render KVM ioctls such as "KVM_GET_REGS" irrelevant. As a result, we need
the ability to pass this opaque metadata from one VMM to the next. The
easiest way to do this is to leave this data in the kernel, and transfer
ownership of the metadata from one KVM VM (or vCPU) to the next. In-kernel
hand off makes it possible to move any data that would be
unsafe/impossible for the kernel to hand directly to userspace, and
cannot be reproduced using data that can be handed to userspace.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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For SEV to work with intra host migration, contents of the SEV info struct
such as the ASID (used to index the encryption key in the AMD SP) and
the list of memory regions need to be transferred to the target VM.
This change adds a commands for a target VMM to get a source SEV VM's sev
info.
Signed-off-by: Peter Gonda <pgonda@google.com>
Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Cc: Marc Orr <marcorr@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Jim Mattson <jmattson@google.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Message-Id: <20211021174303.385706-3-pgonda@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"This includes new ioctls to get and set parameters and in particular
the backup switch mode that is needed for some RTCs to actually enable
the backup voltage (and have a useful RTC).
The same interface can also be used to get the actual features
supported by the RTC so userspace has a better way than trying and
failing.
Summary:
Subsystem:
- Add new ioctl to get and set extra RTC parameters, this includes
backup switch mode
- Expose available features to userspace, in particular, when alarmas
have a resolution of one minute instead of a second.
- Let the core handle those alarms with a minute resolution
New driver:
- MSTAR MSC313 RTC
Drivers:
- Add SPI ID table where necessary
- Add BSM support for rv3028, rv3032 and pcf8523
- s3c: set RTC range
- rx8025: set range, implement .set_offset and .read_offset"
* tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
rtc: rx8025: use .set_offset/.read_offset
rtc: rx8025: use rtc_add_group
rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported
rtc: rx8025: set range
rtc: rx8025: let the core handle the alarm resolution
rtc: rx8025: switch to devm_rtc_allocate_device
rtc: ab8500: let the core handle the alarm resolution
rtc: ab-eoz9: support UIE when available
rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT
rtc: rv3032: let the core handle the alarm resolution
rtc: s35390a: let the core handle the alarm resolution
rtc: handle alarms with a minute resolution
rtc: pcf85063: silence cppcheck warning
rtc: rv8803: fix writing back ctrl in flag register
rtc: s3c: Add time range
rtc: s3c: Extract read/write IO into separate functions
rtc: s3c: Remove usage of devm_rtc_device_register()
rtc: tps80031: Remove driver
rtc: sun6i: Allow probing without an early clock provider
rtc: pcf8523: add BSM support
...
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BSM or Backup Switch Mode is a common feature on RTCs, allowing to select
how the RTC will decide when to switch from its primary power supply to the
backup power supply. It is necessary to be able to set it from userspace as
there are uses cases where it has to be done dynamically.
Supported values are:
RTC_BSM_DISABLED: disabled
RTC_BSM_DIRECT: switching will happen as soon as Vbackup > Vdd
RTC_BSM_LEVEL: switching will happen around a threshold, usually with an
hysteresis
RTC_BSM_STANDBY: switching will not happen until Vdd > Vbackup, this is
useful to ensure the RTC doesn't draw any power until the device is first
powered on.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-6-alexandre.belloni@bootlin.com
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Add a new parameter allowing the get and set the correction using ioctls
instead of just sysfs.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-5-alexandre.belloni@bootlin.com
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Add a new feature for RTCs able to correct the oscillator imprecision. This
is also called offset or trimming. Such drivers have a .set_offset callback,
use that to set the feature bit from the core.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-4-alexandre.belloni@bootlin.com
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Add an ioctl allowing to get and set extra parameters for an RTC. For now,
only handle getting available features.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-3-alexandre.belloni@bootlin.com
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Add more alarm related features to be declared by drivers.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-2-alexandre.belloni@bootlin.com
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, can and netfilter.
Current release - regressions:
- bpf: do not reject when the stack read size is different from the
tracked scalar size
- net: fix premature exit from NAPI state polling in napi_disable()
- riscv, bpf: fix RV32 broken build, and silence RV64 warning
Current release - new code bugs:
- net: fix possible NULL deref in sock_reserve_memory
- amt: fix error return code in amt_init(); fix stopping the
workqueue
- ax88796c: use the correct ioctl callback
Previous releases - always broken:
- bpf: stop caching subprog index in the bpf_pseudo_func insn
- security: fixups for the security hooks in sctp
- nfc: add necessary privilege flags in netlink layer, limit
operations to admin only
- vsock: prevent unnecessary refcnt inc for non-blocking connect
- net/smc: fix sk_refcnt underflow on link down and fallback
- nfnetlink_queue: fix OOB when mac header was cleared
- can: j1939: ignore invalid messages per standard
- bpf, sockmap:
- fix race in ingress receive verdict with redirect to self
- fix incorrect sk_skb data_end access when src_reg = dst_reg
- strparser, and tls are reusing qdisc_skb_cb and colliding
- ethtool: fix ethtool msg len calculation for pause stats
- vlan: fix a UAF in vlan_dev_real_dev() when ref-holder tries to
access an unregistering real_dev
- udp6: make encap_rcv() bump the v6 not v4 stats
- drv: prestera: add explicit padding to fix m68k build
- drv: felix: fix broken VLAN-tagged PTP under VLAN-aware bridge
- drv: mvpp2: fix wrong SerDes reconfiguration order
Misc & small latecomers:
- ipvs: auto-load ipvs on genl access
- mctp: sanity check the struct sockaddr_mctp padding fields
- libfs: support RENAME_EXCHANGE in simple_rename()
- avoid double accounting for pure zerocopy skbs"
* tag 'net-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (123 commits)
selftests/net: udpgso_bench_rx: fix port argument
net: wwan: iosm: fix compilation warning
cxgb4: fix eeprom len when diagnostics not implemented
net: fix premature exit from NAPI state polling in napi_disable()
net/smc: fix sk_refcnt underflow on linkdown and fallback
net/mlx5: Lag, fix a potential Oops with mlx5_lag_create_definer()
gve: fix unmatched u64_stats_update_end()
net: ethernet: lantiq_etop: Fix compilation error
selftests: forwarding: Fix packet matching in mirroring selftests
vsock: prevent unnecessary refcnt inc for nonblocking connect
net: marvell: mvpp2: Fix wrong SerDes reconfiguration order
net: ethernet: ti: cpsw_ale: Fix access to un-initialized memory
net: stmmac: allow a tc-taprio base-time of zero
selftests: net: test_vxlan_under_vrf: fix HV connectivity test
net: hns3: allow configure ETS bandwidth of all TCs
net: hns3: remove check VF uc mac exist when set by PF
net: hns3: fix some mac statistics is always 0 in device version V2
net: hns3: fix kernel crash when unload VF while it is being reset
net: hns3: sync rx ring head in echo common pull
net: hns3: fix pfc packet number incorrect after querying pfc parameters
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ETHTOOL_A_PAUSE_STAT_MAX is the MAX attribute id,
so we need to subtract non-stats and add one to
get a count (IOW -2+1 == -1).
Otherwise we'll see:
ethnl cmd 21: calculated reply length 40, but consumed 52
Fixes: 9a27a33027f2 ("ethtool: add standard pause stats")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull nfsd updates from Bruce Fields:
"A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck"
* tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux: (26 commits)
nfsd4: remove obselete comment
nfsd: document server-to-server-copy parameters
NFSD:fix boolreturn.cocci warning
nfsd: update create verifier comment
SUNRPC: Change return value type of .pc_encode
SUNRPC: Replace the "__be32 *p" parameter to .pc_encode
NFSD: Save location of NFSv4 COMPOUND status
SUNRPC: Change return value type of .pc_decode
SUNRPC: Replace the "__be32 *p" parameter to .pc_decode
SUNRPC: De-duplicate .pc_release() call sites
SUNRPC: Simplify the SVC dispatch code path
SUNRPC: Capture value of xdr_buf::page_base
SUNRPC: Add trace event when alloc_pages_bulk() makes no progress
svcrdma: Split svcrmda_wc_{read,write} tracepoints
svcrdma: Split the svcrdma_wc_send() tracepoint
svcrdma: Split the svcrdma_wc_receive() tracepoint
NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment()
SUNRPC: xdr_stream_subsegment() must handle non-zero page_bases
NFSD: Initialize pointer ni with NULL and not plain integer 0
NFSD: simplify struct nfsfh
...
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A small part of the declaration concerning filehandle format are
currently in the "uapi" include directory:
include/uapi/linux/nfsd/nfsfh.h
There is a lot more to the filehandle format, including "enum fid_type"
and "enum nfsd_fsid" which are not exported via "uapi".
This small part of the filehandle definition is of minimal use outside
of the kernel, and I can find no evidence that an other code is using
it. Certainly nfs-utils and wireshark (The most likely candidates) do not
use these declarations.
So move it out of "uapi" by copying the content from
include/uapi/linux/nfsd/nfsfh.h
into
fs/nfsd/nfsfh.h
A few unnecessary "#include" directives are not copied, and neither is
the #define of fh_auth, which is annotated as being for userspace only.
The copyright claims in the uapi file are identical to those in the nfsd
file, so there is no need to copy those.
The "__u32" style integer types are only needed in "uapi". In
kernel-only code we can use the more familiar "u32" style.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull exit cleanups from Eric Biederman:
"While looking at some issues related to the exit path in the kernel I
found several instances where the code is not using the existing
abstractions properly.
This set of changes introduces force_fatal_sig a way of sending a
signal and not allowing it to be caught, and corrects the misuse of
the existing abstractions that I found.
A lot of the misuse of the existing abstractions are silly things such
as doing something after calling a no return function, rolling BUG by
hand, doing more work than necessary to terminate a kernel thread, or
calling do_exit(SIGKILL) instead of calling force_sig(SIGKILL).
In the review a deficiency in force_fatal_sig and force_sig_seccomp
where ptrace or sigaction could prevent the delivery of the signal was
found. I have added a change that adds SA_IMMUTABLE to change that
makes it impossible to interrupt the delivery of those signals, and
allows backporting to fix force_sig_seccomp
And Arnd found an issue where a function passed to kthread_run had the
wrong prototype, and after my cleanup was failing to build."
* 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (23 commits)
soc: ti: fix wkup_m3_rproc_boot_thread return type
signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed
signal: Replace force_sigsegv(SIGSEGV) with force_fatal_sig(SIGSEGV)
exit/r8188eu: Replace the macro thread_exit with a simple return 0
exit/rtl8712: Replace the macro thread_exit with a simple return 0
exit/rtl8723bs: Replace the macro thread_exit with a simple return 0
signal/x86: In emulate_vsyscall force a signal instead of calling do_exit
signal/sparc32: In setup_rt_frame and setup_fram use force_fatal_sig
signal/sparc32: Exit with a fatal signal when try_to_clear_window_buffer fails
exit/syscall_user_dispatch: Send ordinary signals on failure
signal: Implement force_fatal_sig
exit/kthread: Have kernel threads return instead of calling do_exit
signal/s390: Use force_sigsegv in default_trap_handler
signal/vm86_32: Properly send SIGSEGV when the vm86 state cannot be saved.
signal/vm86_32: Replace open coded BUG_ON with an actual BUG_ON
signal/sparc: In setup_tsb_params convert open coded BUG into BUG
signal/powerpc: On swapcontext failure force SIGSEGV
signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL)
signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
signal/sparc32: Remove unreachable do_exit in do_sparc_fault
...
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As Andy pointed out that there are races between
force_sig_info_to_task and sigaction[1] when force_sig_info_task. As
Kees discovered[2] ptrace is also able to change these signals.
In the case of seeccomp killing a process with a signal it is a
security violation to allow the signal to be caught or manipulated.
Solve this problem by introducing a new flag SA_IMMUTABLE that
prevents sigaction and ptrace from modifying these forced signals.
This flag is carefully made kernel internal so that no new ABI is
introduced.
Longer term I think this can be solved by guaranteeing short circuit
delivery of signals in this case. Unfortunately reliable and
guaranteed short circuit delivery of these signals is still a ways off
from being implemented, tested, and merged. So I have implemented a much
simpler alternative for now.
[1] https://lkml.kernel.org/r/b5d52d25-7bde-4030-a7b1-7c6f8ab90660@www.fastmail.com
[2] https://lkml.kernel.org/r/202110281136.5CE65399A7@keescook
Cc: stable@vger.kernel.org
Fixes: 307d522f5eb8 ("signal/seccomp: Refactor seccomp signal and coredump generation")
Tested-by: Andrea Righi <andrea.righi@canonical.com>
Tested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull prctl updates from Christian Brauner:
"This contains the missing prctl uapi pieces for PR_SCHED_CORE.
In order to activate core scheduling the caller is expected to specify
the scope of the new core scheduling domain.
For example, passing 2 in the 4th argument of
prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, <pid>, 2, 0);
would indicate that the new core scheduling domain encompasses all
tasks in the process group of <pid>. Specifying 0 would only create a
core scheduling domain for the thread identified by <pid> and 2 would
encompass the whole thread-group of <pid>.
Note, the values 0, 1, and 2 correspond to PIDTYPE_PID, PIDTYPE_TGID,
and PIDTYPE_PGID. A first version tried to expose those values
directly to which I objected because:
- PIDTYPE_* is an enum that is kernel internal which we should not
expose to userspace directly.
- PIDTYPE_* indicates what a given struct pid is used for it doesn't
express a scope.
But what the 4th argument of PR_SCHED_CORE prctl() expresses is the
scope of the operation, i.e. the scope of the core scheduling domain
at creation time. So Eugene's patch now simply introduces three new
defines PR_SCHED_CORE_SCOPE_THREAD, PR_SCHED_CORE_SCOPE_THREAD_GROUP,
and PR_SCHED_CORE_SCOPE_PROCESS_GROUP. They simply express what
happens.
This has been on the mailing list for quite a while with all relevant
scheduler folks Cced. I announced multiple times that I'd pick this up
if I don't see or her anyone else doing it. None of this touches
proper scheduler code but only concerns uapi so I think this is fine.
With core scheduling being quite common now for vm managers (e.g.
moving individual vcpu threads into their own core scheduling domain)
and container managers (e.g. moving the init process into its own core
scheduling domain and letting all created children inherit it) having
to rely on raw numbers passed as the 4th argument in prctl() is a bit
annoying and everyone is starting to come up with their own defines"
* tag 'kernel.sys.v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
uapi/linux/prctl: provide macro definitions for the PR_SCHED_CORE type argument
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Commit 7ac592aa35a684ff ("sched: prctl() core-scheduling interface")
made use of enum pid_type in prctl's arg4; this type and the associated
enumeration definitions are not exposed to userspace. Christian
has suggested to provide additional macro definitions that convey
the meaning of the type argument more in alignment with its actual
usage, and this patch does exactly that.
Link: https://lore.kernel.org/r/20210825170613.GA3884@asgard.redhat.com
Suggested-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Complements: 7ac592aa35a684ff ("sched: prctl() core-scheduling interface")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Fix double-evaluation of 'pte' macro argument when using 52-bit PAs
- Fix signedness of some MTE prctl PR_* constants
- Fix kmemleak memory usage by skipping early pgtable allocations
- Fix printing of CPU feature register strings
- Remove redundant -nostdlib linker flag for vDSO binaries
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions
arm64: Track no early_pgtable_alloc() for kmemleak
arm64: mte: change PR_MTE_TCF_NONE back into an unsigned long
arm64: vdso: remove -nostdlib compiler flag
arm64: arm64_ftr_reg->name may not be a human-readable string
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This constant was previously an unsigned long, but was changed
into an int in commit 433c38f40f6a ("arm64: mte: change ASYNC and
SYNC TCF settings into bitfields"). This ended up causing spurious
unsigned-signed comparison warnings in expressions such as:
(x & PR_MTE_TCF_MASK) != PR_MTE_TCF_NONE
Therefore, change it back into an unsigned long to silence these
warnings.
Link: https://linux-review.googlesource.com/id/I07a72310db30227a5b7d789d0b817d78b657c639
Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://lore.kernel.org/r/20211105230829.2254790-1-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Add DM core support for emitting audit events through the audit
subsystem. Also enhance both the integrity and crypt targets to emit
events to via dm-audit.
- Various other simple code improvements and cleanups.
* tag 'for-5.16/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm table: log table creation error code
dm: make workqueue names device-specific
dm writecache: Make use of the helper macro kthread_run()
dm crypt: Make use of the helper macro kthread_run()
dm verity: use bvec_kmap_local in verity_for_bv_block
dm log writes: use memcpy_from_bvec in log_writes_map
dm integrity: use bvec_kmap_local in __journal_read_write
dm integrity: use bvec_kmap_local in integrity_metadata
dm: add add_disk() error handling
dm: Remove redundant flush_workqueue() calls
dm crypt: log aead integrity violations to audit subsystem
dm integrity: log audit events for dm-integrity target
dm: introduce audit event module for device mapper
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To be able to send auditing events to user space, we introduce a
generic dm-audit module. It provides helper functions to emit audit
events through the kernel audit subsystem. We claim the
AUDIT_DM_CTRL type=1336 and AUDIT_DM_EVENT type=1337 out of the
audit event messages range in the corresponding userspace api in
'include/uapi/linux/audit.h' for those events.
AUDIT_DM_CTRL is used to provide information about creation and
destruction of device mapper targets which are triggered by user space
admin control actions.
AUDIT_DM_EVENT is used to provide information about actual errors
during operation of the mapped device, showing e.g. integrity
violations in audit log.
Following commits to device mapper targets actually will make use of
this to emit those events in relevant cases.
The audit logs look like this if executing the following simple test:
# dd if=/dev/zero of=test.img bs=1M count=1024
# losetup -f test.img
# integritysetup -vD format --integrity sha256 -t 32 /dev/loop0
# integritysetup open -D /dev/loop0 --integrity sha256 integritytest
# integritysetup status integritytest
# integritysetup close integritytest
# integritysetup open -D /dev/loop0 --integrity sha256 integritytest
# integritysetup status integritytest
# dd if=/dev/urandom of=/dev/loop0 bs=512 count=1 seek=100000
# dd if=/dev/mapper/integritytest of=/dev/null
-------------------------
audit.log from auditd
type=UNKNOWN[1336] msg=audit(1630425039.363:184): module=integrity
op=ctr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1336] msg=audit(1630425039.471:185): module=integrity
op=dtr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1336] msg=audit(1630425039.611:186): module=integrity
op=ctr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1336] msg=audit(1630425054.475:187): module=integrity
op=dtr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1336] msg=audit(1630425073.171:191): module=integrity
op=ctr ppid=3807 pid=3883 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1336] msg=audit(1630425087.239:192): module=integrity
op=dtr ppid=3807 pid=3902 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1336] msg=audit(1630425093.755:193): module=integrity
op=ctr ppid=3807 pid=3906 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup"
exe="/sbin/integritysetup" subj==unconfined dev=254:3
error_msg='success' res=1
type=UNKNOWN[1337] msg=audit(1630425112.119:194): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:195): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:196): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:197): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:198): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:199): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:200): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:201): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:202): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
type=UNKNOWN[1337] msg=audit(1630425112.119:203): module=integrity
op=integrity-checksum dev=254:3 sector=77480 res=0
Signed-off-by: Michael Weiß <michael.weiss@aisec.fraunhofer.de>
Signed-off-by: Paul Moore <paul@paul-moore.com> # fix audit.h numbering
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Fix a possible of deadlock in case inode writeback is in progress
during dentry reclaim
- Fix a crash in case of page stealing
- Selectively invalidate cached attributes, possibly improving
performance
- Allow filesystems to disable data flushing from ->flush()
- Misc fixes and cleanups
* tag 'fuse-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (23 commits)
fuse: fix page stealing
virtiofs: use strscpy for copying the queue name
fuse: add FOPEN_NOFLUSH
fuse: only update necessary attributes
fuse: take cache_mask into account in getattr
fuse: add cache_mask
fuse: move reverting attributes to fuse_change_attributes()
fuse: simplify local variables holding writeback cache state
fuse: cleanup code conditional on fc->writeback_cache
fuse: fix attr version comparison in fuse_read_update_size()
fuse: always invalidate attributes after writes
fuse: rename fuse_write_update_size()
fuse: don't bump attr_version in cached write
fuse: selective attribute invalidation
fuse: don't increment nlink in link()
fuse: decrement nlink on overwriting rename
fuse: simplify __fuse_write_file_get()
fuse: move fuse_invalidate_attr() into fuse_update_ctime()
fuse: delete redundant code
fuse: use kmap_local_page()
...
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Add flag returned by FUSE_OPEN and FUSE_CREATE requests to avoid flushing
data cache on close.
Different filesystems implement ->flush() is different ways:
- Most disk filesystems do not implement ->flush() at all
- Some network filesystem (e.g. nfs) flush local write cache of
FMODE_WRITE file and send a "flush" command to server
- Some network filesystem (e.g. cifs) flush local write cache of
FMODE_WRITE file without sending an additional command to server
FUSE flushes local write cache of ANY file, even non FMODE_WRITE
and sends a "flush" command to server (if server implements it).
The FUSE implementation of ->flush() seems over agressive and
arbitrary and does not make a lot of sense when writeback caching is
disabled.
Instead of deciding on another arbitrary implementation that makes
sense, leave the choice of per-file flush behavior in the hands of
the server.
Link: https://lore.kernel.org/linux-fsdevel/CAJfpegspE8e6aKd47uZtSYX8Y-1e1FWS0VL0DH2Skb9gQP5RJQ@mail.gmail.com/
Suggested-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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