implementation correctness issues (all marked for stable) and a change
in maintainers for CephFS: Slava and Alex have formally taken over
Xiubo's role.
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Merge tag 'ceph-for-6.19-rc5' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A bunch of libceph fixes split evenly between memory safety and
implementation correctness issues (all marked for stable) and a change
in maintainers for CephFS: Slava and Alex have formally taken over
Xiubo's role"
* tag 'ceph-for-6.19-rc5' of https://github.com/ceph/ceph-client:
libceph: make calc_target() set t->paused, not just clear it
libceph: reset sparse-read state in osd_fault()
libceph: return the handler error from mon_handle_auth_done()
libceph: make free_choose_arg_map() resilient to partial allocation
ceph: update co-maintainers list in MAINTAINERS
libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
libceph: prevent potential out-of-bounds reads in handle_auth_done()
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Merge tag 'for-6.19-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix potential NULL pointer dereference when replaying tree log after
an error
- release path before initializing extent tree to avoid potential
deadlock when allocating new inode
- on filesystems with block size > page size
- fix potential read out of bounds during encoded read of an inline
extent
- only enforce free space tree if v1 cache is required
- print correct tree id in error message
* tag 'for-6.19-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: show correct warning if can't read data reloc tree
btrfs: fix NULL pointer dereference in do_abort_log_replay()
btrfs: force free space tree for bs > ps cases
btrfs: only enforce free space tree if v1 cache is required for bs < ps cases
btrfs: release path before initializing extent tree in btrfs_read_locked_inode()
btrfs: avoid access-beyond-folio for bs > ps encoded writes
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Merge tag 'pci-v6.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fixes from Bjorn Helgaas:
- Remove ASPM L0s support for MSM8996 SoC since we now enable L0s when
advertised, and it caused random hangs on this device (Manivannan
Sadhasivam)
- Fix meson-pcie to report that the link is up while in ASPM L0s or L1,
since those are active states from the software point of view, and
treating the link as down caused config access failures (Bjorn
Helgaas)
- Fix up sparc DTS BAR descriptions that are above 4GB but not marked
as prefetchable, which caused resource assignment and driver probe
failures after we converted from the SPARC pcibios_enable_device() to
the generic version (Ilpo Järvinen)
* tag 'pci-v6.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
sparc/PCI: Correct 64-bit non-pref -> pref BAR resources
PCI: meson: Report that link is up while in ASPM L0s and L1 states
PCI: qcom: Remove ASPM L0s support for MSM8996 SoC
Fix the ACPI/PCI legacy interrupts (INTx) parsing in the cases when
the ACPI Global System Interrupt (GSI) value is a 32-bit one with
the MSB set that is interpreted as a negative integer and causes
acpi_pci_link_allocate_irq() to fail and acpi_irq_get_penalty() to
trigger an out-of-bounds array dereference (Lorenzo Pieralisi)
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Merge tag 'acpi-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support fix from Rafael Wysocki:
"This fixes the ACPI/PCI legacy interrupts (INTx) parsing in the case
when the ACPI Global System Interrupt (GSI) value is a 32-bit one with
the MSB set.
That was interpreted as a negative integer and caused
acpi_pci_link_allocate_irq() to fail and acpi_irq_get_penalty() to
trigger an out-of-bounds array dereference (Lorenzo Pieralisi)"
* tag 'acpi-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PCI: IRQ: Fix INTx GSIs signedness
Fix a crash in the hibernation image saving code that can be triggered
when the given compression algorithm is unavailable (Malaya Kumar Rout)
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Merge tag 'pm-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This fixes a crash in the hibernation image saving code that can be
triggered when the given compression algorithm is unavailable (Malaya
Kumar Rout)"
* tag 'pm-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: hibernate: Fix crash when freeing invalid crypto compressor
- balance superio enter/exit calls in error path in gpio-it87
- fix a race where we try to take the SRCU read lock of the GPIO device
before it's been initialized causing a NULL-pointer dereference
- fix handling of short-pulse interrupts in gpio-pca053x
- fix a reference leak in error path in gpio-mpsse
- mark the GPIO controller as sleeping (it calls sleeping functions) in
gpio-rockchip
- fix several issues in management of shared GPIOs
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Merge tag 'gpio-fixes-for-v6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"There are several ordinary driver fixes and a fix to a race between
the registration of two chips that causes a crash in GPIO core.
The bulk of the changed lines however, concerns the management of
shared GPIOs that landed in v6.19-rc1. Enabling it for ARCH_QCOM
enabled it in defconfig which effectively enabled it for all arm64
platforms and exposed the code to quite a lot of testing (which is
good, right? :)).
As a resukt, I received a number of bug reports, which I progressively
fixed over the course of last weeks. This explains the number of lines
higher than what I normally aim for at this stage.
- balance superio enter/exit calls in error path in gpio-it87
- fix a race where we try to take the SRCU read lock of the GPIO
device before it's been initialized causing a NULL-pointer
dereference
- fix handling of short-pulse interrupts in gpio-pca053x
- fix a reference leak in error path in gpio-mpsse
- mark the GPIO controller as sleeping (it calls sleeping functions)
in gpio-rockchip
- fix several issues in management of shared GPIOs"
* tag 'gpio-fixes-for-v6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: shared: fix a false-positive sharing detection with reset-gpios
gpiolib: fix lookup table matching
gpio: shared: don't allocate the lookup table until we really need it
gpio: shared: fix a race condition
gpio: shared: assign the correct firmware node for reset-gpio use-case
gpio: rockchip: mark the GPIO controller as sleeping
gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths
gpio: pca953x: handle short interrupt pulses on PCAL devices
gpiolib: fix race condition for gdev->srcu
gpio: shared: allow sharing a reset-gpios pin between reset-gpio and gpiolib
gpio: shared: verify con_id when adding proxy lookup
gpiolib: allow multiple lookup tables per consumer
gpio: it87: balance superio enter/exit calls in error path
MAINTAINERS:
- Fix Nova GPU driver git links.
- Fix typo in TYR driver entry preventing correct behavior of
scripts/get_maintainer.pl.
- Exclude TYR driver from DRM MISC.
nova-core:
- Correctly select RUST_FW_LOADER_ABSTRACTIONS to prevent build
errors.
- Regenerate nova-core bindgen bindings with '--explicit-padding' to
avoid uninitialized bytes.
- Fix length of received GSP messages, due to miscalculated message
payload size.
- Regenerate bindings to derive MaybeZeroable.
- Use a bindings alias to derive the firmware version.
exynos:
- hdmi: replace system_wq with system_percpu_wq
pl111:
- Fix error handling in probe
mediatek/atomic/tidss:
- Fix tidss in another way and revert reordering of pre-enable and post-disable operations,
as it breaks other bridge drivers.
nouveau:
- Fix regression from fwsec s/r fix.
pci/vga:
- Fix multiple gpu's being reported a 'boot_display'
fb-helper:
- Fix vblank timeout during suspend/reset
amdgpu:
- Clang fixes
- Navi1x PCIe DPM fixes
- Ring reset fixes
- ISP suspend fix
- Analog DC fixes
- VPE fixes
- Mode1 reset fix
radeon:
- Variable sized array fix
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Merge tag 'drm-fixes-2026-01-09' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"I missed the drm-rust fixes tree for last week, so this catches up on
that, along with amdgpu, and then some misc fixes across a few
drivers. I hadn't got an xe pull by the time I sent this, I suspect
one will arrive 10 mins after, but I don't think there is anything
that can't wait for next week.
Things seem to have picked up a little with people coming back from
holidays,
MAINTAINERS:
- Fix Nova GPU driver git links
- Fix typo in TYR driver entry preventing correct behavior of
scripts/get_maintainer.pl
- Exclude TYR driver from DRM MISC
nova-core:
- Correctly select RUST_FW_LOADER_ABSTRACTIONS to prevent build
errors
- Regenerate nova-core bindgen bindings with '--explicit-padding' to
avoid uninitialized bytes
- Fix length of received GSP messages, due to miscalculated message
payload size
- Regenerate bindings to derive MaybeZeroable
- Use a bindings alias to derive the firmware version
exynos:
- hdmi: replace system_wq with system_percpu_wq
pl111:
- Fix error handling in probe
mediatek/atomic/tidss:
- Fix tidss in another way and revert reordering of pre-enable and
post-disable operations, as it breaks other bridge drivers
nouveau:
- Fix regression from fwsec s/r fix
pci/vga:
- Fix multiple gpu's being reported a 'boot_display'
fb-helper:
- Fix vblank timeout during suspend/reset
amdgpu:
- Clang fixes
- Navi1x PCIe DPM fixes
- Ring reset fixes
- ISP suspend fix
- Analog DC fixes
- VPE fixes
- Mode1 reset fix
radeon:
- Variable sized array fix"
* tag 'drm-fixes-2026-01-09' of https://gitlab.freedesktop.org/drm/kernel: (32 commits)
Reapply "Revert "drm/amd: Skip power ungate during suspend for VPE""
drm/amd/display: Check NULL before calling dac_load_detection
drm/amd/pm: Disable MMIO access during SMU Mode 1 reset
drm/exynos: hdmi: replace use of system_wq with system_percpu_wq
drm/fb-helper: Fix vblank timeout during suspend/reset
PCI/VGA: Don't assume the only VGA device on a system is `boot_vga`
drm/amdgpu: Fix query for VPE block_type and ip_count
drm/amd/display: Add missing encoder setup to DACnEncoderControl
drm/amd/display: Correct color depth for SelectCRTC_Source
drm/amd/amdgpu: Fix SMU warning during isp suspend-resume
drm/amdgpu: always backup and reemit fences
drm/amdgpu: don't reemit ring contents more than once
drm/amd/pm: force send pcie parmater on navi1x
drm/amd/pm: fix wrong pcie parameter on navi1x
drm/radeon: Remove __counted_by from ClockInfoArray.clockInfo[]
drm/amd/display: Reduce number of arguments of dcn30's CalculateWatermarksAndDRAMSpeedChangeSupport()
drm/amd/display: Reduce number of arguments of dcn30's CalculatePrefetchSchedule()
drm/amd/display: Apply e4479aecf658 to dml
nouveau: don't attempt fwsec on sb on newer platforms
drm/tidss: Fix enable/disable order
...
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Merge tag 'vfs-6.19-rc5.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Remove incorrect __user annotation from struct xattr_args::value
- Documentation fix: Add missing kernel-doc description for the @isnew
parameter in ilookup5_nowait() to silence Sphinx warnings
- Documentation fix: Fix kernel-doc comment for __start_dirop() - the
function name in the comment was wrong and the @state parameter was
undocumented
- Replace dynamic folio_batch allocation with stack allocation in
iomap_zero_range(). The dynamic allocation was problematic for
ext4-on-iomap work (didn't handle allocation failure properly) and
triggered lockdep complaints. Uses a flag instead to control batch
usage
- Re-add #ifdef guards around PIDFD_GET_<ns-type>_NAMESPACE ioctls.
When a namespace type is disabled, ns->ops is NULL, causes crashes
during inode eviction when closing the fd. The ifdefs were removed in
a recent simplification but are still needed
- Fixe a race where a folio could be unlocked before the trailing zeros
(for EOF within the page) were written
- Split out a dedicated lease_dispose_list() helper since lease code
paths always know they're disposing of leases. Removes unnecessary
runtime flag checks and prepares for upcoming lease_manager
enhancements
- Fix userland delegation requests succeeding despite conflicting
opens. Previously, FL_LAYOUT and FL_DELEG leases bypassed conflict
checks (a hack for nfsd). Adds new ->lm_open_conflict() lease_manager
operation so userland delegations get proper conflict checking while
nfsd can continue its own conflict handling
- Fix LOOKUP_CACHED path lookups incorrectly falling through to the
slow path. After legitimize_links() calls were conditionally elided,
the routine would always fail with LOOKUP_CACHED regardless of
whether there were any links. Now the flag is checked at the two
callsites before calling legitimize_links()
- Fix bug in media fd allocation in media_request_alloc()
- Fix mismatched API calls in ecryptfs_mknod(): was calling
end_removing() instead of end_creating() after
ecryptfs_start_creating_dentry()
- Fix dentry reference count leak in ecryptfs_mkdir(): a dget() of the
lower parent dir was added but never dput()'d, causing BUG during
lower filesystem unmount due to the still-in-use dentry
* tag 'vfs-6.19-rc5.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
pidfs: protect PIDFD_GET_* ioctls() via ifdef
ecryptfs: Release lower parent dentry after creating dir
ecryptfs: Fix improper mknod pairing of start_creating()/end_removing()
get rid of bogus __user in struct xattr_args::value
VFS: fix __start_dirop() kernel-doc warnings
fs: Describe @isnew parameter in ilookup5_nowait()
fs: make sure to fail try_to_unlazy() and try_to_unlazy() for LOOKUP_CACHED
netfs: Fix early read unlock of page with EOF in middle
filelock: allow lease_managers to dictate what qualifies as a conflict
filelock: add lease_dispose_list() helper
iomap: replace folio_batch allocation with stack allocation
media: mc: fix potential use-after-free in media_request_alloc()
After scanning the devicetree, we remove all entries that have only one
reference, while creating GPIO shared proxies for the remaining, shared
entries. However: for the reset-gpio corner-case, we will have two
references for a "reset-gpios" pin that's not really shared. In this
case one will come from the actual consumer fwnode and the other from
the potential auxiliary reset-gpio device. This causes the GPIO core to
create unnecessary GPIO shared proxy devices for pins that are not
really shared.
Add a function that can detect this situation and remove entries that
have exactly two references but one of them is a reset-gpio.
Fixes: 7b78b26757e0 ("gpio: shared: handle the reset-gpios corner case")
Link: https://lore.kernel.org/r/20260108-gpio-shared-false-positive-v1-1-5dbf8d1b2f7d@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
- Fix the mt8189 register base name order back from being fixed
broken.
- Add REGMAP_MMIO to the pic64gx-gpio2 to avoid build breakages.
- Mark the Qualcomm lpass-lpi pin controller GPIO chip instance
as sleeping to fix lock splats.
- Update .mailmap with my new kernel.org address for all old mails
after maintainers ran into issues with this.
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Merge tag 'pinctrl-v6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fix the mt8189 register base name order back from being fixed broken
- Add REGMAP_MMIO to the pic64gx-gpio2 to avoid build breakages
- Mark the Qualcomm lpass-lpi pin controller GPIO chip instance as
sleeping to fix lock splats
- Update .mailmap with my new kernel.org address for all old mails
after maintainers ran into issues with this
* tag 'pinctrl-v6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: qcom: lpass-lpi: mark the GPIO controller as sleeping
pinctrl: pic64gx-gpio2: Add REGMAP_MMIO dependency
Update .mailmap for Linus Walleij
pinctrl: mediatek: mt8189: restore previous register base name array order
- Remove useless assignment of soft_mode variable
The function __ftrace_event_enable_disable() sets "soft_mode" in one of
the branch paths but doesn't use it after that. Remove the setting of that
variable.
- Add a cond_resched() in ring_buffer_resize()
The resize function that allocates all the pages for the ring buffer was
causing a soft lockup on PREEMPT_NONE configs when allocating large
buffers on machines with many CPUs. Hopefully this is the last
cond_resched() needed to be added as PREEMPT_LAZY becomes the norm in the
future.
- Make ftrace_graph_ent depth field signed
The "depth" field of struct ftrace_graph_ent was converted from "int" to
"unsigned long" for alignment reasons to work with being embedded in other
structures. The conversion from a signed to unsigned caused integrity
checks to always pass as they were comparing "depth" to less than zero.
Make the field signed long.
- Add recursion protection to stack trace events
A infinite recursion was triggered by a stack trace event calling RCU
which internally called rcu_read_unlock_special(), which triggered an
event that was also doing stacktraces which cause it to trigger the same
RCU lock that called rcu_read_unlock_special() again.
Update the trace_test_and_set_recursion() to add a set of context checks
for events to use, and have the stack trace event use that for recursion
protection.
- Make the variable ftrace_dump_on_oops static
The cleanup of sysctl that moved all the updates to the files that use
them moved the reference of ftrace_dump_on_oops to where it is used.
It is no longer used outside of the trace.c file. Make it static.
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Merge tag 'trace-v6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Remove useless assignment of soft_mode variable
The function __ftrace_event_enable_disable() sets "soft_mode" in one
of the branch paths but doesn't use it after that. Remove the setting
of that variable.
- Add a cond_resched() in ring_buffer_resize()
The resize function that allocates all the pages for the ring buffer
was causing a soft lockup on PREEMPT_NONE configs when allocating
large buffers on machines with many CPUs. Hopefully this is the last
cond_resched() needed to be added as PREEMPT_LAZY becomes the norm in
the future.
- Make ftrace_graph_ent depth field signed
The "depth" field of struct ftrace_graph_ent was converted from "int"
to "unsigned long" for alignment reasons to work with being embedded
in other structures. The conversion from a signed to unsigned caused
integrity checks to always pass as they were comparing "depth" to
less than zero. Make the field signed long.
- Add recursion protection to stack trace events
A infinite recursion was triggered by a stack trace event calling RCU
which internally called rcu_read_unlock_special(), which triggered an
event that was also doing stacktraces which cause it to trigger the
same RCU lock that called rcu_read_unlock_special() again.
Update the trace_test_and_set_recursion() to add a set of context
checks for events to use, and have the stack trace event use that for
recursion protection.
- Make the variable ftrace_dump_on_oops static
The cleanup of sysctl that moved all the updates to the files that
use them moved the reference of ftrace_dump_on_oops to where it is
used. It is no longer used outside of the trace.c file. Make it
static.
* tag 'trace-v6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
trace: ftrace_dump_on_oops[] is not exported, make it static
tracing: Add recursion protection in kernel stack trace recording
ftrace: Make ftrace_graph_ent depth field signed
ring-buffer: Avoid softlockup in ring_buffer_resize() during memory free
tracing: Drop unneeded assignment to soft_mode
Current release - fix to a fix:
- net: do not write to msg_get_inq in callee
- arp: do not assume dev_hard_header() does not change skb->head
Current release - regressions:
- wifi: mac80211: don't iterate not running interfaces
- eth: mlx5: fix NULL pointer dereference in ioctl module EEPROM
Current release - new code bugs:
- eth: bnge: add AUXILIARY_BUS to Kconfig dependencies
Previous releases - regressions:
- eth: mlx5: dealloc forgotten PSP RX modify header
Previous releases - always broken:
- ping: fix ICMP out SNMP stats double-counting with ICMP sockets
- bonding: preserve NETIF_F_ALL_FOR_ALL across TSO updates
- bridge: fix C-VLAN preservation in 802.1ad vlan_tunnel egress
- eth: bnxt: fix potential data corruption with HW GRO/LRO
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and wireless.
Current release - fix to a fix:
- net: do not write to msg_get_inq in callee
- arp: do not assume dev_hard_header() does not change skb->head
Current release - regressions:
- wifi: mac80211: don't iterate not running interfaces
- eth: mlx5: fix NULL pointer dereference in ioctl module EEPROM
Current release - new code bugs:
- eth: bnge: add AUXILIARY_BUS to Kconfig dependencies
Previous releases - regressions:
- eth: mlx5: dealloc forgotten PSP RX modify header
Previous releases - always broken:
- ping: fix ICMP out SNMP stats double-counting with ICMP sockets
- bonding: preserve NETIF_F_ALL_FOR_ALL across TSO updates
- bridge: fix C-VLAN preservation in 802.1ad vlan_tunnel egress
- eth: bnxt: fix potential data corruption with HW GRO/LRO"
* tag 'net-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
arp: do not assume dev_hard_header() does not change skb->head
net: enetc: fix build warning when PAGE_SIZE is greater than 128K
atm: Fix dma_free_coherent() size
tools: ynl: don't install tests
net: do not write to msg_get_inq in callee
bnxt_en: Fix NULL pointer crash in bnxt_ptp_enable during error cleanup
net: usb: pegasus: fix memory leak in update_eth_regs_async()
net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset
wifi: mac80211: collect station statistics earlier when disconnect
wifi: mac80211: restore non-chanctx injection behaviour
wifi: mac80211_hwsim: disable BHs for hwsim_radio_lock
wifi: mac80211: don't iterate not running interfaces
wifi: mac80211_hwsim: fix typo in frequency notification
wifi: avoid kernel-infoleak from struct iw_point
net: airoha: Fix schedule while atomic in airoha_ppe_deinit()
selftests: netdevsim: add carrier state consistency test
net: netdevsim: fix inconsistent carrier state after link/unlink
selftests: drv-net: Bring back tool() to driver __init__s
net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
...
arp_create() is the only dev_hard_header() caller
making assumption about skb->head being unchanged.
A recent commit broke this assumption.
Initialize @arp pointer after dev_hard_header() call.
Fixes: db5b4e39c4e6 ("ip6_gre: make ip6gre_header() robust")
Reported-by: syzbot+58b44a770a1585795351@syzkaller.appspotmail.com
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260107212250.384552-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-01-06 (idpf)
This series contains updates to idpf driver only.
Emil fixes issues related to resets; among them timeouts, NULL pointer
dereferences, and memory leaks.
Sreedevi resolves issues around RSS; mainly involving operations when
the interface is down and resets. She also addresses some incomplete
cleanups for ntuple filters and interrupts.
Erik fixes incomplete output of ntuple filters.
Josh sets restriction of Rx buffer size to follow hardware restrictions.
Larysa adds check to prevent NULL pointer dereference when RDMA is not
enabled.
* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
idpf: fix aux device unplugging when rdma is not supported by vport
idpf: cap maximum Rx buffer size
idpf: Fix error handling in idpf_vport_open()
idpf: Fix RSS LUT NULL ptr issue after soft reset
idpf: Fix RSS LUT configuration on down interfaces
idpf: Fix RSS LUT NULL pointer crash on early ethtool operations
idpf: fix issue with ethtool -n command display
idpf: fix memory leak of flow steer list on rmmod
idpf: fix error handling in the init_task on load
idpf: fix memory leak in idpf_vc_core_deinit()
idpf: fix memory leak in idpf_vport_rel()
idpf: detach and close netdevs while handling a reset
idpf: keep the netdev when a reset fails
====================
Link: https://patch.msgid.link/20260107000648.1861994-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The max buffer size of ENETC RX BD is 0xFFFF bytes, so if the PAGE_SIZE
is greater than 128K, ENETC_RXB_DMA_SIZE and ENETC_RXB_DMA_SIZE_XDP will
be greater than 0xFFFF, thus causing a build warning.
This will not cause any practical issues because ENETC is currently only
used on the ARM64 platform, and the max PAGE_SIZE is 64K. So this patch
is only for fixing the build warning that occurs when compiling ENETC
drivers for other platforms.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601050637.kHEKKOG7-lkp@intel.com/
Fixes: e59bc32df2e9 ("net: enetc: correct the value of ENETC_RXB_TRUESIZE")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260107091204.1980222-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- mac80211:
- long-standing injection bug due to chanctx rework
- more recent interface iteration issue
- collect statistics before removing stations
- hwsim:
- fix NAN frequency typo (potential NULL ptr deref)
- fix locking of radio lock (needs softirqs disabled)
- wext:
- ancient issue with compat and events copying some
uninitialized stack data to userspace
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Merge tag 'wireless-2026-01-08' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Couple of fixes:
- mac80211:
- long-standing injection bug due to chanctx rework
- more recent interface iteration issue
- collect statistics before removing stations
- hwsim:
- fix NAN frequency typo (potential NULL ptr deref)
- fix locking of radio lock (needs softirqs disabled)
- wext:
- ancient issue with compat and events copying some
uninitialized stack data to userspace
* tag 'wireless-2026-01-08' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mac80211: collect station statistics earlier when disconnect
wifi: mac80211: restore non-chanctx injection behaviour
wifi: mac80211_hwsim: disable BHs for hwsim_radio_lock
wifi: mac80211: don't iterate not running interfaces
wifi: mac80211_hwsim: fix typo in frequency notification
wifi: avoid kernel-infoleak from struct iw_point
====================
Link: https://patch.msgid.link/20260108140141.139687-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The size of the buffer is not the same when alloc'd with
dma_alloc_coherent() in he_init_tpdrq() and freed.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://patch.msgid.link/20260107090141.80900-2-fourier.thomas@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
make's install target is meant for installing the production
artifacts, AFAIU. Don't install test_ynl_cli and test_ynl_ethtool
from under the main YNL install target. The install target
under tests/ is retained in case someone wants the tests
to be installed.
Fixes: 308b7dee3e5c ("tools: ynl: add YNL test framework")
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20260106163426.1468943-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
NULL pointer dereference fix.
msg_get_inq is an input field from caller to callee. Don't set it in
the callee, as the caller may not clear it on struct reuse.
This is a kernel-internal variant of msghdr only, and the only user
does reinitialize the field. So this is not critical for that reason.
But it is more robust to avoid the write, and slightly simpler code.
And it fixes a bug, see below.
Callers set msg_get_inq to request the input queue length to be
returned in msg_inq. This is equivalent to but independent from the
SO_INQ request to return that same info as a cmsg (tp->recvmsg_inq).
To reduce branching in the hot path the second also sets the msg_inq.
That is WAI.
This is a fix to commit 4d1442979e4a ("af_unix: don't post cmsg for
SO_INQ unless explicitly asked for"), which fixed the inverse.
Also avoid NULL pointer dereference in unix_stream_read_generic if
state->msg is NULL and msg->msg_get_inq is written. A NULL state->msg
can happen when splicing as of commit 2b514574f7e8 ("net: af_unix:
implement splice for stream af_unix sockets").
Also collapse two branches using a bitwise or.
Cc: stable@vger.kernel.org
Fixes: 4d1442979e4a ("af_unix: don't post cmsg for SO_INQ unless explicitly asked for")
Link: https://lore.kernel.org/netdev/willemdebruijn.kernel.24d8030f7a3de@gmail.com/
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260106150626.3944363-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When bnxt_init_one() fails during initialization (e.g.,
bnxt_init_int_mode returns -ENODEV), the error path calls
bnxt_free_hwrm_resources() which destroys the DMA pool and sets
bp->hwrm_dma_pool to NULL. Subsequently, bnxt_ptp_clear() is called,
which invokes ptp_clock_unregister().
Since commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to
disable events"), ptp_clock_unregister() now calls
ptp_disable_all_events(), which in turn invokes the driver's .enable()
callback (bnxt_ptp_enable()) to disable PTP events before completing the
unregistration.
bnxt_ptp_enable() attempts to send HWRM commands via bnxt_ptp_cfg_pin()
and bnxt_ptp_cfg_event(), both of which call hwrm_req_init(). This
function tries to allocate from bp->hwrm_dma_pool, causing a NULL
pointer dereference:
bnxt_en 0000:01:00.0 (unnamed net_device) (uninitialized): bnxt_init_int_mode err: ffffffed
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
Call Trace:
__hwrm_req_init (drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c:72)
bnxt_ptp_enable (drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:323 drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:517)
ptp_disable_all_events (drivers/ptp/ptp_chardev.c:66)
ptp_clock_unregister (drivers/ptp/ptp_clock.c:518)
bnxt_ptp_clear (drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:1134)
bnxt_init_one (drivers/net/ethernet/broadcom/bnxt/bnxt.c:16889)
Lines are against commit f8f9c1f4d0c7 ("Linux 6.19-rc3")
Fix this by clearing and unregistering ptp (bnxt_ptp_clear()) before
freeing HWRM resources.
Suggested-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Fixes: a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable events")
Cc: stable@vger.kernel.org
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20260106-bnxt-v3-1-71f37e11446a@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When asynchronously writing to the device registers and if usb_submit_urb()
fail, the code fail to release allocated to this point resources.
Fixes: 323b34963d11 ("drivers: net: usb: pegasus: fix control urb submission")
Signed-off-by: Petko Manolov <petkan@nucleusys.com>
Link: https://patch.msgid.link/20260106084821.3746677-1-petko.manolov@konsulko.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
pdev can be null and free_ring: can be called in 1297 with a null
pdev.
Fixes: 55c82617c3e8 ("3c59x: convert to generic DMA API")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://patch.msgid.link/20260106094731.25819-2-fourier.thomas@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'hid-for-linus-2026010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- build fix for HID-BPF (Benjamin Tissoires)
- fix for potential buffer overflow in i2c-hid (Kwok Kin Ming)
- a couple of selftests/hid fixes (Peter Hutterer)
- fix for handling pressure pads in hid-multitouch (Peter Hutterer)
- fix for potential NULL pointer dereference in intel-thc-hid (Even Xu)
- fix for interrupt delay control in intel-thc-hid (Even Xu)
- fix finger release detection on some VTL-class touchpads (DaytonCL)
- fix for correct enumeration on intel-ish-hid systems with no sensors
(Zhang Lixu)
- assorted device ID additions and device-specific quirks
* tag 'hid-for-linus-2026010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (21 commits)
HID: logitech: add HID++ support for Logitech MX Anywhere 3S
HID: Elecom: Add support for ELECOM M-XT3DRBK (018C)
HID: quirks: work around VID/PID conflict for appledisplay
HID: Apply quirk HID_QUIRK_ALWAYS_POLL to Edifier QR30 (2d99:a101)
HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()
selftests/hid: add a test for the Digitizer/Button Type pressurepad
selftests/hid: use a enum class for the different button types
selftests/hid: require hidtools 0.12
HID: multitouch: set INPUT_PROP_PRESSUREPAD based on Digitizer/Button Type
HID: quirks: Add another Chicony HP 5MP Cameras to hid_ignore_list
HID: Intel-thc-hid: Intel-thc: Add safety check for reading DMA buffer
hid: intel-thc-hid: Select SGL_ALLOC
selftests/hid: fix bpf compilations due to -fms-extensions
HID: bpf: fix bpf compilation with -fms-extensions
HID: Intel-thc-hid: Intel-thc: Fix wrong register reading
HID: multitouch: add MT_QUIRK_STICKY_FINGERS to MT_CLS_VTL
HID: intel-ish-hid: Reset enum_devices_done before enumeration
HID: intel-ish-hid: Update ishtp bus match to support device ID table
HID: Intel-thc-hid: Intel-thc: fix dma_unmap_sg() nents value
HID: playstation: Center initial joystick axes to prevent spurious events
...
A collection of small device-specific fixes.
* ASoC Intel topology fixes for conflicting Bluetooth bits
* Cleanups of ASoC drivers for superfluous NULL checks
* Fix for error handling in the AC97 bus
* A regression fix for TAS2781 speaker ID handling
* HD-audio quirks
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Merge tag 'sound-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small device-specific fixes:
- ASoC Intel topology fixes for conflicting Bluetooth bits
- Cleanups of ASoC drivers for superfluous NULL checks
- Fix for error handling in the AC97 bus
- A regression fix for TAS2781 speaker ID handling
- HD-audio quirks"
* tag 'sound-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: add HP Laptop 15s-eq1xxx mute LED quirk
ALSA: hda/realtek: Add quirk for Acer Nitro AN517-55
ALSA: hda/tas2781: properly initialize speaker_id for TAS2563
ALSA: ac97: fix a double free in snd_ac97_controller_register()
ASoC: sun4i-spdif: Add missing kerneldoc fields for sun4i_spdif_quirks
ASoC: codecs: pm4125: clean up bind() device reference handling
ASoC: soc_sdw_utils: drop bogus container_of() error handling
ASoC: codecs: wcd937x: drop bogus container_of() error handling
ASoC: codecs: pm4125: drop bogus container_of() error handling
ASoC: SOF: Intel: add -bt tplg suffix if BT is present
ASoC: Intel: sof_sdw: shift SSP BT mask bits.
If on any iteration in gpiod_find(), gpio_desc_table_match() returns
NULL (which is normal and expected), we never reinitialize desc back to
ERR_PTR(-ENOENT) and if we don't find a match later on, we will return
NULL causing a NULL-pointer dereference in users not expecting it. Don't
initialize desc, but return ERR_PTR(-ENOENT) explicitly at the end of
the function.
Fixes: 9700b0fccf38 ("gpiolib: allow multiple lookup tables per consumer")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Closes: https://lore.kernel.org/all/00107523-7737-4b92-a785-14ce4e93b8cb@samsung.com/
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260108102314.18816-1-bartosz.golaszewski@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
In __sta_info_destroy_part2(), station statistics are requested after the
IEEE80211_STA_NONE -> IEEE80211_STA_NOTEXIST transition. This is
problematic because the driver may be unable to handle the request due to
the STA being in the NOTEXIST state (i.e. if the driver destroys the
underlying data when transitioning to NOTEXIST).
Move the statistics collection to before the state transition to avoid
this issue.
Signed-off-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20251222-mac80211-move-station-stats-collection-earlier-v1-1-12cd4e42c633@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
During the transition to use channel contexts throughout, the
ability to do injection while in monitor mode concurrent with
another interface was lost, since the (virtual) monitor won't
have a chanctx assigned in this scenario.
It's harder to fix drivers that actually transitioned to using
channel contexts themselves, such as mt76, but it's easy to do
those that are (still) just using the emulation. Do that.
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218763
Reported-and-tested-by: Oscar Alfonso Diaz <oscar.alfonso.diaz@gmail.com>
Fixes: 0a44dfc07074 ("wifi: mac80211: simplify non-chanctx drivers")
Link: https://patch.msgid.link/20251216105242.18366-2-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
for_each_chanctx_user_* was introdcued as a replacement for
for_each_sdata_link, which visits also other chanctx users that are not
link.
for_each_sdata_link skips not running interfaces, do the same for
for_each_chanctx_user_*
Fixes: 1ce954c98b89 ("wifi: mac80211: add and use chanctx usage iteration")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260107143736.55c084e2a976.I38b7b904a135dadca339321923b501b2c2c5c8c0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The NAN notification is for 5745 MHz which corresponds to channel 149
and not 5475 which is not actually a valid channel. This could result in
a NULL pointer dereference in cfg80211_next_nan_dw_notif.
Fixes: a37a6f54439b ("wifi: mac80211_hwsim: Add simulation support for NAN device")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260107143652.7dab2035836f.Iacbaf7bb94ed5c14a0928a625827e4137d8bfede@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
I've acquired a Logitech MX Anywhere 3S mouse, which supports HID++ over
Bluetooth. Adding its PID 0xb037 to the allowlist enables the additional
features, such as high-resolution scrolling. Tested working across multiple
machines, with a mix of Intel and Mediatek Bluetooth chips.
[jkosina@suse.com: standardize shortlog]
Signed-off-by: Dennis Marttinen <twelho@welho.tech>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
airoha_ppe_deinit() runs airoha_npu_ppe_deinit() in atomic context.
airoha_npu_ppe_deinit routine allocates ppe_data buffer with GFP_KERNEL
flag. Rely on rcu_replace_pointer in airoha_ppe_deinit routine in order
to fix schedule while atomic issue in airoha_npu_ppe_deinit() since we
do not need atomic context there.
Fixes: 00a7678310fe3 ("net: airoha: Introduce flowtable offload support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260105-airoha-fw-ethtool-v2-1-3b32b158cc31@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
For years I wondered why the Apple Cinema Display driver would not
just work for me. Turns out the hidraw driver instantly takes it
over. Fix by adding appledisplay VID/PIDs to hid_have_special_driver.
Fixes: 069e8a65cd79 ("Driver for Apple Cinema Display")
Signed-off-by: René Rebe <rene@exactco.de>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
The USB speaker has a bug that causes it to reboot when changing the
brightness using the physical knob.
Add a new vendor and product ID entry in hid-ids.h, and register
the corresponding device in hid-quirks.c with the required quirk.
Signed-off-by: Rodrigo Lugathe da Conceição Alves <lugathe2@gmail.com>
Reviewed-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Skipping power ungate exposed some scenarios that will fail
like below:
```
amdgpu: Register(0) [regVPEC_QUEUE_RESET_REQ] failed to reach value 0x00000000 != 0x00000001n
amdgpu 0000:c1:00.0: amdgpu: VPE queue reset failed
...
amdgpu: [drm] *ERROR* wait_for_completion_timeout timeout!
```
The underlying s2idle issue that prompted this commit is going to
be fixed in BIOS.
This reverts commit 2a6c826cfeedd7714611ac115371a959ead55bda.
This was lost in the 6.19 merge so reapply it.
Fixes: 2a6c826cfeed ("drm/amd: Skip power ungate during suspend for VPE")
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reported-by: Konstantin <answer2019@yandex.ru>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220812
Reported-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 3925683515e93844be204381d2d5a1df5de34f31)
dac_load_detection can be NULL in some scenario, so checking it before
calling.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 179176134b535246f0b368b30e8ecad50066f896)
During Mode 1 reset, the ASIC undergoes a reset cycle and becomes
temporarily inaccessible via PCIe. Any attempt to access MMIO registers
during this window (e.g., from interrupt handlers or other driver threads)
can result in uncompleted PCIe transactions, leading to NMI panics or
system hangs.
To prevent this, set the `no_hw_access` flag to true immediately after
triggering the reset. This signals other driver components to skip
register accesses while the device is offline.
A memory barrier `smp_mb()` is added to ensure the flag update is
globally visible to all cores before the driver enters the sleep/wait
state.
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7edb503fe4b6d67f47d8bb0dfafb8e699bb0f8a4)
pl111:
- Fix error handling in probe
mediatek/atomic/tidss:
- Fix tidss in another way and revert reordering of pre-enable and post-disable operations,
as it breaks other bridge drivers.
nouveau:
- Fix regression from fwsec s/r fix.
pci/vga:
- Fix multiple gpu's being reported a 'boot_display'
fb-helper:
- Fix vblank timeout during suspend/reset
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Merge tag 'drm-misc-fixes-2026-01-07' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
drm-misc-fixes for v6.19-rc5:
pl111:
- Fix error handling in probe
mediatek/atomic/tidss:
- Fix tidss in another way and revert reordering of pre-enable and post-disable operations,
as it breaks other bridge drivers.
nouveau:
- Fix regression from fwsec s/r fix.
pci/vga:
- Fix multiple gpu's being reported a 'boot_display'
fb-helper:
- Fix vblank timeout during suspend/reset
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/f50067e6-243a-4ed8-9781-1e4e4fdebc8e@linux.intel.com
. Replace system_wq with system_percpu_wq in the Exynos HDMI driver.
system_wq is effectively a per-cpu workqueue, but its name does not make
this explicit. Recent workqueue changes introduced system_percpu_wq to clarify
semantics and support ongoing workqueue API refactoring.
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Merge tag 'exynos-drm-fixes-v6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
One code cleanup
. Replace system_wq with system_percpu_wq in the Exynos HDMI driver.
system_wq is effectively a per-cpu workqueue, but its name does not make
this explicit. Recent workqueue changes introduced system_percpu_wq to clarify
semantics and support ongoing workqueue API refactoring.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patch.msgid.link/20260107091154.27436-1-inki.dae@samsung.com
SPARC T5-2 dts describes some PCI BARs as 64-bit resources without the
pref(etchable) bit (0x83... vs 0xc3... in assigned-addresses) for address
ranges above the 4G threshold. Such resources cannot be placed into a
non-prefetchable PCI bridge window that is capable only of 32-bit
addressing. As such, it looks like the platform is improperly described by
the dts.
The kernel detects this problem (see the IORESOURCE_PREFETCH check in
pci_find_parent_resource()) and fails to assign these BAR resources to the
resource tree due to lack of a compatible bridge window.
Prior to 754babaaf333 ("sparc/PCI: Remove pcibios_enable_device() as they
do nothing extra") SPARC arch code did not test whether device resources
were successfully in the resource tree when enabling a device, effectively
hiding the problem. After removing the arch-specific enable code,
pci_enable_resources() refuses to enable the device when it finds not all
mem resources are assigned, and therefore mpt3sas can't be enabled:
pci 0001:04:00.0: reg 0x14: [mem 0x801110000000-0x80111000ffff 64bit]
pci 0001:04:00.0: reg 0x1c: [mem 0x801110040000-0x80111007ffff 64bit]
pci 0001:04:00.0: BAR 1 [mem 0x801110000000-0x80111000ffff 64bit]: can't claim; no compatible bridge window
pci 0001:04:00.0: BAR 3 [mem 0x801110040000-0x80111007ffff 64bit]: can't claim; no compatible bridge window
mpt3sas 0001:04:00.0: BAR 1 [mem size 0x00010000 64bit]: not assigned; can't enable device
For clarity, this filtered log only shows failures for one mpt3sas device
but other devices fail similarly. In the reported case, the end result with
all the failures is an unbootable system.
Things appeared to "work" before 754babaaf333 ("sparc/PCI: Remove
pcibios_enable_device() as they do nothing extra") because the resource
tree is agnostic to whether PCI BAR resources are properly in the tree or
not. So as long as there was a parent resource (e.g. a root bus resource)
that contains the address range, the resource tree code just places
resource request underneath it without any consideration to the
intermediate BAR resource. While it worked, it's incorrect setup still.
Add an OF fixup to set the IORESOURCE_PREFETCH flag for a 64-bit PCI
resource that has the end address above 4G requiring placement into the
prefetchable window. Also log the issue.
Fixes: 754babaaf333 ("sparc/PCI: Remove pcibios_enable_device() as they do nothing extra")
Reported-by: Nathaniel Roach <nroach44@gmail.com>
Closes: https://github.com/sparclinux/issues/issues/22
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Nathaniel Roach <nroach44@gmail.com>
Link: https://patch.msgid.link/20251124170411.3709-1-ilpo.jarvinen@linux.intel.com
The ftrace_dump_on_oops string is not used outside of trace.c so
make it static to avoid the export warning from sparse:
kernel/trace/trace.c:141:6: warning: symbol 'ftrace_dump_on_oops' was not declared. Should it be static?
Fixes: dd293df6395a2 ("tracing: Move trace sysctls into trace.c")
Link: https://patch.msgid.link/20260106231054.84270-1-ben.dooks@codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
A bug was reported about an infinite recursion caused by tracing the rcu
events with the kernel stack trace trigger enabled. The stack trace code
called back into RCU which then called the stack trace again.
Expand the ftrace recursion protection to add a set of bits to protect
events from recursion. Each bit represents the context that the event is
in (normal, softirq, interrupt and NMI).
Have the stack trace code use the interrupt context to protect against
recursion.
Note, the bug showed an issue in both the RCU code as well as the tracing
stacktrace code. This only handles the tracing stack trace side of the
bug. The RCU fix will be handled separately.
Link: https://lore.kernel.org/all/20260102122807.7025fc87@gandalf.local.home/
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20260105203141.515cd49f@gandalf.local.home
Reported-by: Yao Kai <yaokai34@huawei.com>
Tested-by: Yao Kai <yaokai34@huawei.com>
Fixes: 5f5fa7ea89dc ("rcu: Don't use negative nesting depth in __rcu_read_unlock()")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The code has integrity checks to make sure that depth never goes below
zero. But the depth field has recently been converted to unsigned long
from "int" (for alignment reasons). As unsigned long can never be less
than zero, the integrity checks no longer work.
Convert depth to long from unsigned long to allow the integrity checks to
work again.
Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: pengdonglin <pengdonglin@xiaomi.com>
Link: https://patch.msgid.link/20260102143148.251c2e16@gandalf.local.home
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aS6kGi0maWBl-MjZ@stanley.mountain/
Fixes: f83ac7544fbf7 ("function_graph: Enable funcgraph-args and funcgraph-retaddr to work simultaneously")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
When user resize all trace ring buffer through file 'buffer_size_kb',
then in ring_buffer_resize(), kernel allocates buffer pages for each
cpu in a loop.
If the kernel preemption model is PREEMPT_NONE and there are many cpus
and there are many buffer pages to be freed, it may not give up cpu
for a long time and finally cause a softlockup.
To avoid it, call cond_resched() after each cpu buffer free as Commit
f6bd2c92488c ("ring-buffer: Avoid softlockup in ring_buffer_resize()")
does.
Detailed call trace as follow:
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 24-....: (14837 ticks this GP) idle=521c/1/0x4000000000000000 softirq=230597/230597 fqs=5329
rcu: (t=15004 jiffies g=26003221 q=211022 ncpus=96)
CPU: 24 UID: 0 PID: 11253 Comm: bash Kdump: loaded Tainted: G EL 6.18.2+ #278 NONE
pc : arch_local_irq_restore+0x8/0x20
arch_local_irq_restore+0x8/0x20 (P)
free_frozen_page_commit+0x28c/0x3b0
__free_frozen_pages+0x1c0/0x678
___free_pages+0xc0/0xe0
free_pages+0x3c/0x50
ring_buffer_resize.part.0+0x6a8/0x880
ring_buffer_resize+0x3c/0x58
__tracing_resize_ring_buffer.part.0+0x34/0xd8
tracing_resize_ring_buffer+0x8c/0xd0
tracing_entries_write+0x74/0xd8
vfs_write+0xcc/0x288
ksys_write+0x74/0x118
__arm64_sys_write+0x24/0x38
Cc: <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251228065008.2396573-1-mawupeng1@huawei.com
Signed-off-by: Wupeng Ma <mawupeng1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
soft_mode is not read in the enable case, so drop the assignment.
Drop also the comment text that refers to the assignment and realign
the comment.
Cc: "Paul E . McKenney" <paulmck@kernel.org>
Cc: Gabriele Paoloni <gpaoloni@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251226110531.4129794-1-Julia.Lawall@inria.fr
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
