I want to use the crtc_state->inherited flag to clean up some
of the early SAGV handling. To make that work nicely I need to
flag even the inactive crtcs as "inherited".
Since we can't expect user space to perform any real commits
on inactive crtcs we'll clear the flag already during
initial_commit().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250326162544.3642-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Currently intel_bw_calc_min_cdclk() always adds the bw_state
to the atomic state. Not only does it result in potentially
redundant work later, it's also currently causing unwanted cdclk
changes during driver load.
Check if the dbuf bw is actually changing before we decide to
pull in the bw state.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250326162544.3642-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
intel_bw_crtc_min_cdclk() only depends on the pipe data rate,
which we already have stashed in bw_state->data_rate[]. So
stashing the resulting min_cdclk[] as well is redundant. Get
rid of it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250326162544.3642-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
* The sub-architecture selection Kconfig system has been cleaned up,
the documentation has been improved, and various detections have been
fixed.
* The vector-related extensions dependencies are now validated when
parsing from device tree and in the DT bindings.
* Misaligned access probing can be overridden via a kernel command-line
parameter, along with various fixes to misalign access handling.
* Support for relocatable !MMU kernels builds.
* Support for hpge pfnmaps, which should improve TLB utilization.
* Support for runtime constants, which improves the d_hash()
performance.
* Support for bfloat16, Zicbom, Zaamo, Zalrsc, Zicntr, Zihpm.
* Various fixes, including:
- We were missing a secondary mmu notifier call when flushing the
tlb which is required for IOMMU.
- Fix ftrace panics by saving the registers as expected by ftrace.
- Fix a couple of stimecmp usage related to cpu hotplug.
- purgatory_start is now aligned as per the STVEC requirements.
- A fix for hugetlb when calculating the size of non-present PTEs.
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Merge tag 'riscv-for-linus-6.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- The sub-architecture selection Kconfig system has been cleaned up,
the documentation has been improved, and various detections have been
fixed
- The vector-related extensions dependencies are now validated when
parsing from device tree and in the DT bindings
- Misaligned access probing can be overridden via a kernel command-line
parameter, along with various fixes to misalign access handling
- Support for relocatable !MMU kernels builds
- Support for hpge pfnmaps, which should improve TLB utilization
- Support for runtime constants, which improves the d_hash()
performance
- Support for bfloat16, Zicbom, Zaamo, Zalrsc, Zicntr, Zihpm
- Various fixes, including:
- We were missing a secondary mmu notifier call when flushing the
tlb which is required for IOMMU
- Fix ftrace panics by saving the registers as expected by ftrace
- Fix a couple of stimecmp usage related to cpu hotplug
- purgatory_start is now aligned as per the STVEC requirements
- A fix for hugetlb when calculating the size of non-present PTEs
* tag 'riscv-for-linus-6.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (65 commits)
riscv: Add norvc after .option arch in runtime const
riscv: Make sure toolchain supports zba before using zba instructions
riscv/purgatory: 4B align purgatory_start
riscv/kexec_file: Handle R_RISCV_64 in purgatory relocator
selftests: riscv: fix v_exec_initval_nolibc.c
riscv: Fix hugetlb retrieval of number of ptes in case of !present pte
riscv: print hartid on bringup
riscv: Add norvc after .option arch in runtime const
riscv: Remove CONFIG_PAGE_OFFSET
riscv: Support CONFIG_RELOCATABLE on riscv32
asm-generic: Always define Elf_Rel and Elf_Rela
riscv: Support CONFIG_RELOCATABLE on NOMMU
riscv: Allow NOMMU kernels to access all of RAM
riscv: Remove duplicate CONFIG_PAGE_OFFSET definition
RISC-V: errata: Use medany for relocatable builds
dt-bindings: riscv: document vector crypto requirements
dt-bindings: riscv: add vector sub-extension dependencies
dt-bindings: riscv: d requires f
RISC-V: add f & d extension validation checks
RISC-V: add vector crypto extension validation checks
...
Current release - regressions:
- 4 fixes for the netdev per-instance locking
Current release - new code bugs:
- consolidate more code between existing Rx zero-copy and uring so that
the latter doesn't miss / have to duplicate the safety checks
Previous releases - regressions:
- ipv6: fix omitted Netlink attributes when using SKIP_STATS
Previous releases - always broken:
- net: fix geneve_opt length integer overflow
- udp: fix multiple wrap arounds of sk->sk_rmem_alloc when it
approaches INT_MAX
- dsa: mvpp2: add a lock to avoid corruption of the shared TCAM
- dsa: airoha: fix issues with traffic QoS configuration / offload,
and flow table offload
Misc:
- touch up the Netlink YAML specs of old families to make them usable
for user space C codegen
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter.
Current release - regressions:
- four fixes for the netdev per-instance locking
Current release - new code bugs:
- consolidate more code between existing Rx zero-copy and uring so
that the latter doesn't miss / have to duplicate the safety checks
Previous releases - regressions:
- ipv6: fix omitted Netlink attributes when using SKIP_STATS
Previous releases - always broken:
- net: fix geneve_opt length integer overflow
- udp: fix multiple wrap arounds of sk->sk_rmem_alloc when it
approaches INT_MAX
- dsa: mvpp2: add a lock to avoid corruption of the shared TCAM
- dsa: airoha: fix issues with traffic QoS configuration / offload,
and flow table offload
Misc:
- touch up the Netlink YAML specs of old families to make them usable
for user space C codegen"
* tag 'net-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (56 commits)
selftests: net: amt: indicate progress in the stress test
netlink: specs: rt_route: pull the ifa- prefix out of the names
netlink: specs: rt_addr: pull the ifa- prefix out of the names
netlink: specs: rt_addr: fix get multi command name
netlink: specs: rt_addr: fix the spec format / schema failures
net: avoid false positive warnings in __net_mp_close_rxq()
net: move mp dev config validation to __net_mp_open_rxq()
net: ibmveth: make veth_pool_store stop hanging
arcnet: Add NULL check in com20020pci_probe()
ipv6: Do not consider link down nexthops in path selection
ipv6: Start path selection from the first nexthop
usbnet:fix NPE during rx_complete
net: octeontx2: Handle XDP_ABORTED and XDP invalid as XDP_DROP
net: fix geneve_opt length integer overflow
io_uring/zcrx: fix selftests w/ updated netdev Python helpers
selftests: net: use netdevsim in netns test
docs: net: document netdev notifier expectations
net: dummy: request ops lock
netdevsim: add dummy device notifiers
net: rename rtnl_net_debug to lock_debug
...
A small collection of fixes that came in during the merge window,
everything is driver specific with nothing standing out particularly
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Merge tag 'spi-fix-v6.15-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of fixes that came in during the merge window,
everything is driver specific with nothing standing out particularly"
* tag 'spi-fix-v6.15-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: bcm2835: Restore native CS probing when pinctrl-bcm2835 is absent
spi: bcm2835: Do not call gpiod_put() on invalid descriptor
spi: cadence-qspi: revert "Improve spi memory performance"
spi: cadence: Fix out-of-bounds array access in cdns_mrvl_xspi_setup_clock()
spi: fsl-qspi: use devm function instead of driver remove
spi: SPI_QPIC_SNAND should be tristate and depend on MTD
spi-rockchip: Fix register out of bounds access
This is the promised follow-up to the soc drivers branch, adding minor
updates to omap and freescale drivers.
Most notably, Ioana Ciornei takes over maintenance of the DPAA bus
driver used in some NXP (originally Freescale) chips.
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Merge tag 'soc-drivers-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more SoC driver updates from Arnd Bergmann:
"This is the promised follow-up to the soc drivers branch, adding minor
updates to omap and freescale drivers.
Most notably, Ioana Ciornei takes over maintenance of the DPAA bus
driver used in some NXP (originally Freescale) chips"
* tag 'soc-drivers-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
bus: fsl-mc: Remove deadcode
MAINTAINERS: add the linuppc-dev list to the fsl-mc bus entry
MAINTAINERS: fix nonexistent dtbinding file name
MAINTAINERS: add myself as maintainer for the fsl-mc bus
irqdomain: soc: Switch to irq_find_mapping()
Input: tsc2007 - accept standard properties
Fixes:
- thinkpad_acpi:
- Fix NULL pointer dereferences while probing
- Disable ACPI fan access for T495* and E560
- ISST: Correct command storage data length
The following is an automated shortlog grouped by driver:
ISST:
- Correct command storage data length
MAINTAINERS:
- consistently use my dedicated email address
thinkpad_acpi:
- disable ACPI fan access for T495* and E560
- Fix NULL pointer dereferences while probing
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Merge tag 'platform-drivers-x86-v6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- thinkpad_acpi:
- Fix NULL pointer dereferences while probing
- Disable ACPI fan access for T495* and E560
- ISST: Correct command storage data length
* tag 'platform-drivers-x86-v6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
MAINTAINERS: consistently use my dedicated email address
platform/x86: ISST: Correct command storage data length
platform/x86: thinkpad_acpi: disable ACPI fan access for T495* and E560
platform/x86: thinkpad_acpi: Fix NULL pointer dereferences while probing
Replace comma between expressions with semicolons.
Using a ',' in place of a ';' can have unintended side effects.
Although that is not the case here, it is seems best to use ';'
unless ',' is intended.
Found by inspection.
No functional change intended.
Compile tested only.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Amery Hung <ameryhung@gmail.com>
Link: https://lore.kernel.org/bpf/20250401061546.1990156-1-nichen@iscas.ac.cn
Anton Protopopov says:
====================
likely/unlikely for bpf_helpers and a small comment fix
These two commits fix a comment describing bpf_attr in <linux/bpf.h>
and add likely/unlikely macros to <bph/bpf_helpers.h> to be consumed
by selftests and, later, by the static_branch_likely/unlikely macros.
v1 -> v2:
* squash libbpf and selftests fixes into one patch (Andrii)
====================
Link: https://patch.msgid.link/20250331203618.1973691-1-a.s.protopopov@gmail.com
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
A few selftests and, more importantly, consequent changes to the
bpf_helpers.h file, use likely/unlikely macros, so define them here
and remove duplicate definitions from existing selftests.
Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250331203618.1973691-3-a.s.protopopov@gmail.com
The map_fd field of the bpf_attr union is used in the BPF_MAP_FREEZE
syscall. Explicitly mention this in the comments.
Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250331203618.1973691-2-a.s.protopopov@gmail.com
Since memfd_create() is not consistently available across different
bionic libc implementations, using memfd_create() directly can break
some Android builds:
tools/lib/bpf/linker.c:576:7: error: implicit declaration of function 'memfd_create' [-Werror,-Wimplicit-function-declaration]
576 | fd = memfd_create(filename, 0);
| ^
To fix this, relocate and inline the sys_memfd_create() helper so that
it can be used in "linker.c". Similar issues were previously fixed by
commit 9fa5e1a180 ("libbpf: Call memfd_create() syscall directly").
Fixes: 6d5e5e5d7c ("libbpf: Extend linker API to support in-memory ELF files")
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250330211325.530677-1-cmllamas@google.com
Buffer / file table registration is all or nothing, if it fails all
resources we might have partially registered are dropped and the table
is killed. If that happens, it doesn't make sense to post any rsrc tag
CQEs. That would be confusing to the application, which should not need
to handle that case.
Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Fixes: 7029acd8a9 ("io_uring/rsrc: get rid of per-ring io_rsrc_node list")
Link: https://lore.kernel.org/r/c514446a8dcb0197cddd5d4ba8f6511da081cf1f.1743777957.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Frank reported, that the common irq_force_complete_move() breaks the out of
tree build of ia64. The reason is that ia64 uses the migration code, but
does not have hierarchical interrupt domains enabled.
This went unnoticed in mainline as both x86 and RISC-V have hierarchical
domains enabled. Not that it matters for mainline, but it's still
inconsistent.
Use irqd_get_parent_data() instead of accessing the parent_data field
directly. The helper returns NULL when hierarchical domains are disabled
otherwise it accesses the parent_data field of the domain.
No functional change.
Fixes: 751dc837da ("genirq: Introduce common irq_force_complete_move() implementation")
Reported-by: Frank Scheiner <frank.scheiner@web.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Frank Scheiner <frank.scheiner@web.de>
Link: https://lore.kernel.org/all/87h634ugig.ffs@tglx
Our CI expects output from the test at least once every 10 minutes.
The AMT test when running on debug kernel is just on the edge
of that time for the stress test. Improve the output:
- print the name of the test first, before starting it,
- output a dot every 10% of the way.
Output after:
TEST: amt discovery [ OK ]
TEST: IPv4 amt multicast forwarding [ OK ]
TEST: IPv6 amt multicast forwarding [ OK ]
TEST: IPv4 amt traffic forwarding torture .......... [ OK ]
TEST: IPv6 amt traffic forwarding torture .......... [ OK ]
Reviewed-by: Taehee Yoo <ap420073@gmail.com>
Link: https://patch.msgid.link/20250403145636.2891166-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It is confusing to see 'host' and 'domain' to be used as 'domain'. Given
this header is all about domains, switch the remaining 'host' uses to
'domain'.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-5-jirislaby@kernel.org
Naming interrupt domains host is confusing at best and the irqdomain code
uses both domain and host inconsistently.
Therefore rename irq_get_default_host() to irq_get_default_domain().
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-4-jirislaby@kernel.org
Naming interrupt domains host is confusing at best and the irqdomain code
uses both domain and host inconsistently.
Therefore rename irq_set_default_host() to irq_set_default_domain().
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-3-jirislaby@kernel.org
YAML specs don't normally include the C prefix name in the name
of the YAML attr. Remove the ifa- prefix from all attributes
in route-attrs and metrics and specify name-prefix instead.
This is a bit risky, hopefully there aren't many users out there.
Fixes: 023289b4f5 ("doc/netlink: Add spec for rt route messages")
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250403013706.2828322-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
YAML specs don't normally include the C prefix name in the name
of the YAML attr. Remove the ifa- prefix from all attributes
in addr-attrs and specify name-prefix instead.
This is a bit risky, hopefully there aren't many users out there.
Fixes: dfb0f7d9d9 ("doc/netlink: Add spec for rt addr messages")
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250403013706.2828322-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Command names should match C defines, codegens may depend on it.
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Fixes: 4f280376e5 ("selftests/net: Add selftest for IPv4 RTM_GETMULTICAST support")
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250403013706.2828322-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The spec is mis-formatted, schema validation says:
Failed validating 'type' in schema['properties']['operations']['properties']['list']['items']['properties']['dump']['properties']['request']['properties']['value']:
{'minimum': 0, 'type': 'integer'}
On instance['operations']['list'][3]['dump']['request']['value']:
'58 - ifa-family'
The ifa-family clearly wants to be part of an attribute list.
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Yuyang Huang <yuyanghuang@google.com>
Fixes: 4f280376e5 ("selftests/net: Add selftest for IPv4 RTM_GETMULTICAST support")
Link: https://patch.msgid.link/20250403013706.2828322-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski says:
====================
net: make memory provider install / close paths more common
We seem to be fixing bugs in config path for devmem which also exist
in the io_uring ZC path. Let's try to make the two paths more common,
otherwise this is bound to keep happening.
Found by code inspection and compile tested only.
v1: https://lore.kernel.org/20250331194201.2026422-1-kuba@kernel.org
====================
Link: https://patch.msgid.link/20250403013405.2827250-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit under Fixes solved the problem of spurious warnings when we
uninstall an MP from a device while its down. The __net_mp_close_rxq()
which is used by io_uring was not fixed. Move the fix over and reuse
__net_mp_close_rxq() in the devmem path.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Fixes: a70f891e0f ("net: devmem: do not WARN conditionally after netdev_rx_queue_restart()")
Reviewed-by: Mina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/20250403013405.2827250-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
devmem code performs a number of safety checks to avoid having
to reimplement all of them in the drivers. Move those to
__net_mp_open_rxq() and reuse that function for binding to make
sure that io_uring ZC also benefits from them.
While at it rename the queue ID variable to rxq_idx in
__net_mp_open_rxq(), we touch most of the relevant lines.
The XArray insertion is reordered after the netdev_rx_queue_restart()
call, otherwise we'd need to duplicate the queue index check
or risk inserting an invalid pointer. The XArray allocation
failures should be extremely rare.
Reviewed-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Fixes: 6e18ed929d ("net: add helpers for setting a memory provider on an rx queue")
Link: https://patch.msgid.link/20250403013405.2827250-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
v2:
- Created a single error handling unlock and exit in veth_pool_store
- Greatly expanded commit message with previous explanatory-only text
Summary: Use rtnl_mutex to synchronize veth_pool_store with itself,
ibmveth_close and ibmveth_open, preventing multiple calls in a row to
napi_disable.
Background: Two (or more) threads could call veth_pool_store through
writing to /sys/devices/vio/30000002/pool*/*. You can do this easily
with a little shell script. This causes a hang.
I configured LOCKDEP, compiled ibmveth.c with DEBUG, and built a new
kernel. I ran this test again and saw:
Setting pool0/active to 0
Setting pool1/active to 1
[ 73.911067][ T4365] ibmveth 30000002 eth0: close starting
Setting pool1/active to 1
Setting pool1/active to 0
[ 73.911367][ T4366] ibmveth 30000002 eth0: close starting
[ 73.916056][ T4365] ibmveth 30000002 eth0: close complete
[ 73.916064][ T4365] ibmveth 30000002 eth0: open starting
[ 110.808564][ T712] systemd-journald[712]: Sent WATCHDOG=1 notification.
[ 230.808495][ T712] systemd-journald[712]: Sent WATCHDOG=1 notification.
[ 243.683786][ T123] INFO: task stress.sh:4365 blocked for more than 122 seconds.
[ 243.683827][ T123] Not tainted 6.14.0-01103-g2df0c02dab82-dirty #8
[ 243.683833][ T123] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 243.683838][ T123] task:stress.sh state:D stack:28096 pid:4365 tgid:4365 ppid:4364 task_flags:0x400040 flags:0x00042000
[ 243.683852][ T123] Call Trace:
[ 243.683857][ T123] [c00000000c38f690] [0000000000000001] 0x1 (unreliable)
[ 243.683868][ T123] [c00000000c38f840] [c00000000001f908] __switch_to+0x318/0x4e0
[ 243.683878][ T123] [c00000000c38f8a0] [c000000001549a70] __schedule+0x500/0x12a0
[ 243.683888][ T123] [c00000000c38f9a0] [c00000000154a878] schedule+0x68/0x210
[ 243.683896][ T123] [c00000000c38f9d0] [c00000000154ac80] schedule_preempt_disabled+0x30/0x50
[ 243.683904][ T123] [c00000000c38fa00] [c00000000154dbb0] __mutex_lock+0x730/0x10f0
[ 243.683913][ T123] [c00000000c38fb10] [c000000001154d40] napi_enable+0x30/0x60
[ 243.683921][ T123] [c00000000c38fb40] [c000000000f4ae94] ibmveth_open+0x68/0x5dc
[ 243.683928][ T123] [c00000000c38fbe0] [c000000000f4aa20] veth_pool_store+0x220/0x270
[ 243.683936][ T123] [c00000000c38fc70] [c000000000826278] sysfs_kf_write+0x68/0xb0
[ 243.683944][ T123] [c00000000c38fcb0] [c0000000008240b8] kernfs_fop_write_iter+0x198/0x2d0
[ 243.683951][ T123] [c00000000c38fd00] [c00000000071b9ac] vfs_write+0x34c/0x650
[ 243.683958][ T123] [c00000000c38fdc0] [c00000000071bea8] ksys_write+0x88/0x150
[ 243.683966][ T123] [c00000000c38fe10] [c0000000000317f4] system_call_exception+0x124/0x340
[ 243.683973][ T123] [c00000000c38fe50] [c00000000000d05c] system_call_vectored_common+0x15c/0x2ec
...
[ 243.684087][ T123] Showing all locks held in the system:
[ 243.684095][ T123] 1 lock held by khungtaskd/123:
[ 243.684099][ T123] #0: c00000000278e370 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x50/0x248
[ 243.684114][ T123] 4 locks held by stress.sh/4365:
[ 243.684119][ T123] #0: c00000003a4cd3f8 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x88/0x150
[ 243.684132][ T123] #1: c000000041aea888 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x154/0x2d0
[ 243.684143][ T123] #2: c0000000366fb9a8 (kn->active#64){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x160/0x2d0
[ 243.684155][ T123] #3: c000000035ff4cb8 (&dev->lock){+.+.}-{3:3}, at: napi_enable+0x30/0x60
[ 243.684166][ T123] 5 locks held by stress.sh/4366:
[ 243.684170][ T123] #0: c00000003a4cd3f8 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x88/0x150
[ 243.684183][ T123] #1: c00000000aee2288 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x154/0x2d0
[ 243.684194][ T123] #2: c0000000366f4ba8 (kn->active#64){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x160/0x2d0
[ 243.684205][ T123] #3: c000000035ff4cb8 (&dev->lock){+.+.}-{3:3}, at: napi_disable+0x30/0x60
[ 243.684216][ T123] #4: c0000003ff9bbf18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x138/0x12a0
From the ibmveth debug, two threads are calling veth_pool_store, which
calls ibmveth_close and ibmveth_open. Here's the sequence:
T4365 T4366
----------------- ----------------- ---------
veth_pool_store veth_pool_store
ibmveth_close
ibmveth_close
napi_disable
napi_disable
ibmveth_open
napi_enable <- HANG
ibmveth_close calls napi_disable at the top and ibmveth_open calls
napi_enable at the top.
https://docs.kernel.org/networking/napi.html]] says
The control APIs are not idempotent. Control API calls are safe
against concurrent use of datapath APIs but an incorrect sequence of
control API calls may result in crashes, deadlocks, or race
conditions. For example, calling napi_disable() multiple times in a
row will deadlock.
In the normal open and close paths, rtnl_mutex is acquired to prevent
other callers. This is missing from veth_pool_store. Use rtnl_mutex in
veth_pool_store fixes these hangs.
Signed-off-by: Dave Marquardt <davemarq@linux.ibm.com>
Fixes: 860f242eb5 ("[PATCH] ibmveth change buffer pools dynamically")
Reviewed-by: Nick Child <nnac123@linux.ibm.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250402154403.386744-1-davemarq@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
devm_kasprintf() returns NULL when memory allocation fails. Currently,
com20020pci_probe() does not check for this case, which results in a
NULL pointer dereference.
Add NULL check after devm_kasprintf() to prevent this issue and ensure
no resources are left allocated.
Fixes: 6b17a597fc ("arcnet: restoring support for multiple Sohard Arcnet cards")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Link: https://patch.msgid.link/20250402135036.44697-1-bsdhenrymartin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ido Schimmel says:
====================
ipv6: Multipath routing fixes
This patchset contains two fixes for IPv6 multipath routing. See the
commit messages for more details.
====================
Link: https://patch.msgid.link/20250402114224.293392-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Nexthops whose link is down are not supposed to be considered during
path selection when the "ignore_routes_with_linkdown" sysctl is set.
This is done by assigning them a negative region boundary.
However, when comparing the computed hash (unsigned) with the region
boundary (signed), the negative region boundary is treated as unsigned,
resulting in incorrect nexthop selection.
Fix by treating the computed hash as signed. Note that the computed hash
is always in range of [0, 2^31 - 1].
Fixes: 3d709f69a3 ("ipv6: Use hash-threshold instead of modulo-N")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250402114224.293392-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Cited commit transitioned IPv6 path selection to use hash-threshold
instead of modulo-N. With hash-threshold, each nexthop is assigned a
region boundary in the multipath hash function's output space and a
nexthop is chosen if the calculated hash is smaller than the nexthop's
region boundary.
Hash-threshold does not work correctly if path selection does not start
with the first nexthop. For example, if fib6_select_path() is always
passed the last nexthop in the group, then it will always be chosen
because its region boundary covers the entire hash function's output
space.
Fix this by starting the selection process from the first nexthop and do
not consider nexthops for which rt6_score_route() provided a negative
score.
Fixes: 3d709f69a3 ("ipv6: Use hash-threshold instead of modulo-N")
Reported-by: Stanislav Fomichev <stfomichev@gmail.com>
Closes: https://lore.kernel.org/netdev/Z9RIyKZDNoka53EO@mini-arch/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250402114224.293392-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Missing usbnet_going_away Check in Critical Path.
The usb_submit_urb function lacks a usbnet_going_away
validation, whereas __usbnet_queue_skb includes this check.
This inconsistency creates a race condition where:
A URB request may succeed, but the corresponding SKB data
fails to be queued.
Subsequent processes:
(e.g., rx_complete → defer_bh → __skb_unlink(skb, list))
attempt to access skb->next, triggering a NULL pointer
dereference (Kernel Panic).
Fixes: 04e906839a ("usbnet: fix cyclical race on disconnect with work queue")
Cc: stable@vger.kernel.org
Signed-off-by: Ying Lu <luying1@xiaomi.com>
Link: https://patch.msgid.link/4c9ef2efaa07eb7f9a5042b74348a67e5a3a7aea.1743584159.git.luying1@xiaomi.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In the current implementation octeontx2 manages XDP_ABORTED and XDP
invalid as XDP_PASS forwarding the skb to the networking stack.
Align the behaviour to other XDP drivers handling XDP_ABORTED and XDP
invalid as XDP_DROP.
Please note this patch has just compile tested.
Fixes: 06059a1a9a ("octeontx2-pf: Add XDP support to netdev PF")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250401-octeontx2-xdp-abort-fix-v1-1-f0587c35a0b9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix a performance regression on AMD iGPU and dGPU drivers,
related to the unintended activation of DMA bounce buffers
that regressed game performance if KASLR disturbed things
just enough.
- Fix a copy_user_generic() performance regression on certain
older non-FSRM/ERMS CPUs
- Fix a Clang build warning due to a semantic merge conflict
the Kunit tree generated with the x86 tree
- Fix FRED related system hang during S4 resume
- Remove an unused API
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2025-04-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix a performance regression on AMD iGPU and dGPU drivers, related to
the unintended activation of DMA bounce buffers that regressed game
performance if KASLR disturbed things just enough
- Fix a copy_user_generic() performance regression on certain older
non-FSRM/ERMS CPUs
- Fix a Clang build warning due to a semantic merge conflict the Kunit
tree generated with the x86 tree
- Fix FRED related system hang during S4 resume
- Remove an unused API
* tag 'x86-urgent-2025-04-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fred: Fix system hang during S4 resume with FRED enabled
x86/platform/iosf_mbi: Remove unused iosf_mbi_unregister_pmic_bus_access_notifier()
x86/mm/init: Handle the special case of device private pages in add_pages(), to not increase max_pfn and trigger dma_addressing_limited() bounce buffers
x86/tools: Drop duplicate unlikely() definition in insn_decoder_test.c
x86/uaccess: Improve performance by aligning writes to 8 bytes in copy_user_generic(), on non-FSRM/ERMS CPUs
A collection of device-specific fixes that have been gathered since
the previous PR.
- A few more HD-audio quirks and fixups
- A series of Qualcomm AudioReach fixes
- Various small fixes for ASoC rt5665, WSA, SOF and Cirrus.
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Merge tag 'sound-fix-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of device-specific fixes that have been gathered since
the previous pull:
- A few more HD-audio quirks and fixups
- A series of Qualcomm AudioReach fixes
- Various small fixes for ASoC rt5665, WSA, SOF and Cirrus"
* tag 'sound-fix-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Fix built-in mic on another ASUS VivoBook model
ALSA: hda/realtek - Support mute led function for HP platform
ASoC: imx-card: Add NULL check in imx_card_probe()
ASoC: codecs: rt5665: Fix some error handling paths in rt5665_probe()
ASoC: q6apm-dai: make use of q6apm_get_hw_pointer
ASoC: qdsp6: q6apm-dai: fix capture pipeline overruns.
ASoC: qdsp6: q6apm-dai: set 10 ms period and buffer alignment.
ASoC: q6apm: add q6apm_get_hw_pointer helper
ASoC: q6apm-dai: schedule all available frames to avoid dsp under-runs
ASoC: SOF: hda/ptl: Move mic privacy change notification sending to a work
ALSA/hda: intel-sdw-acpi: Remove (explicitly) unused header
ALSA: hda/realtek: Enable Mute LED on HP OMEN 16 Laptop xd000xx
ALSA: hda/tas2781: Upgrade calibratd-data writing code to support Alpha and Beta dsp firmware
ASoC: qdsp6: q6asm-dai: fix q6asm_dai_compr_set_params error path
ALSA: hda/realtek: Fix built-in mic breakage on ASUS VivoBook X515JA
ASoC: sma1307: Fix error handling in sma1307_setting_loaded()
ASoC: codecs: wsa884x: Correct VI sense channel mask
ASoC: codecs: wsa883x: Correct VI sense channel mask
firmware: cs_dsp: Ensure cs_dsp_load[_coeff]() returns 0 on success
__bf_shf() on a 64-bit variable causes a link failure during
compile-testing:
drivers-platform-cznic-turris-omnia-mcu-gpio.c:(.text):undefined-reference-to-__ffsdi2
Open-code this using ffs()-1, which has the same result but avoids
the library call.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
"struct key" is defined conditionally, so the code referencing it
must be made conditional as well:
In file included from drivers/firmware/turris-mox-rwtm.c:29:
include/linux/turris-signing-key.h: In function 'turris_signing_key_get_dev':
include/linux/turris-signing-key.h:26:19: error: invalid use of undefined type 'const struct key'
26 | return key->payload.data[1];
| ^~
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The rz-du driver uses GEM DMA helpers, but does not implement the
drm_driver .gem_prime_import_sg_table operation. This prevents
importing dmabufs. Fix it by implementing the missing operation using
the DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE() helper macro.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> # RZ/V2H + DSI
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250321104615.31809-1-laurent.pinchart+renesas@ideasonboard.com
Add Kconfig dependency between RZG2L_DU and RZG2L_MIPI_DSI, so that
DSI module has functional dependency on DU. It is similar way that
the R-Car MIPI DSI encoder is handled.
While at it drop ARCH_RENESAS dependency as DRM_RZG2L_DU depend on
ARCH_RZG2L.
Suggested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240827163727.108405-1-biju.das.jz@bp.renesas.com
- irqdomain cleanups from Jiry
- Add Ioana as Maintainer of fsl-mc bus and remove Laurentiu and Stuart
- Remove deadcode from fsl-mc bus
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Merge tag 'soc_fsl-6.15-1' of https://github.com/chleroy/linux into soc/drivers-2
FSL SOC Changes for 6.15:
- irqdomain cleanups from Jiry
- Add Ioana as Maintainer of fsl-mc bus and remove Laurentiu and Stuart
- Remove deadcode from fsl-mc bus
* tag 'soc_fsl-6.15-1' of https://github.com/chleroy/linux:
bus: fsl-mc: Remove deadcode
MAINTAINERS: add the linuppc-dev list to the fsl-mc bus entry
MAINTAINERS: fix nonexistent dtbinding file name
MAINTAINERS: add myself as maintainer for the fsl-mc bus
irqdomain: soc: Switch to irq_find_mapping()
