Pierre Gondois
48ac727ea4
firmware: arm_sdei: Fix sleep from invalid context BUG ...
[ Upstream commit d2c48b2387eb89e0bf2a2e06e30987cf410acad4 ]
Running a preempt-rt (v6.2-rc3-rt1) based kernel on an Ampere Altra
triggers:
BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46
in_atomic(): 0, irqs_disabled(): 128, non_block: 0, pid: 24, name: cpuhp/0
preempt_count: 0, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by cpuhp/0/24:
#0 : ffffda30217c70d0 (cpu_hotplug_lock){++++}-{0:0}, at: cpuhp_thread_fun+0x5c/0x248
#1 : ffffda30217c7120 (cpuhp_state-up){+.+.}-{0:0}, at: cpuhp_thread_fun+0x5c/0x248
#2 : ffffda3021c711f0 (sdei_list_lock){....}-{3:3}, at: sdei_cpuhp_up+0x3c/0x130
irq event stamp: 36
hardirqs last enabled at (35): [<ffffda301e85b7bc>] finish_task_switch+0xb4/0x2b0
hardirqs last disabled at (36): [<ffffda301e812fec>] cpuhp_thread_fun+0x21c/0x248
softirqs last enabled at (0): [<ffffda301e80b184>] copy_process+0x63c/0x1ac0
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 0 PID: 24 Comm: cpuhp/0 Not tainted 5.19.0-rc3-rt5-[...]
Hardware name: WIWYNN Mt.Jade Server [...]
Call trace:
dump_backtrace+0x114/0x120
show_stack+0x20/0x70
dump_stack_lvl+0x9c/0xd8
dump_stack+0x18/0x34
__might_resched+0x188/0x228
rt_spin_lock+0x70/0x120
sdei_cpuhp_up+0x3c/0x130
cpuhp_invoke_callback+0x250/0xf08
cpuhp_thread_fun+0x120/0x248
smpboot_thread_fn+0x280/0x320
kthread+0x130/0x140
ret_from_fork+0x10/0x20
sdei_cpuhp_up() is called in the STARTING hotplug section,
which runs with interrupts disabled. Use a CPUHP_AP_ONLINE_DYN entry
instead to execute the cpuhp cb later, with preemption enabled.
SDEI originally got its own cpuhp slot to allow interacting
with perf. It got superseded by pNMI and this early slot is not
relevant anymore. [1]
Some SDEI calls (e.g. SDEI_1_0_FN_SDEI_PE_MASK) take actions on the
calling CPU. It is checked that preemption is disabled for them.
_ONLINE cpuhp cb are executed in the 'per CPU hotplug thread'.
Preemption is enabled in those threads, but their cpumask is limited
to 1 CPU.
Move 'WARN_ON_ONCE(preemptible())' statements so that SDEI cpuhp cb
don't trigger them.
Also add a check for the SDEI_1_0_FN_SDEI_PRIVATE_RESET SDEI call
which acts on the calling CPU.
[1]:
https://lore.kernel.org/all/5813b8c5-ae3e-87fd-fccc-94c9cd08816d@arm.com/
Suggested-by: James Morse <james.morse@arm.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20230216084920.144064-1-pierre.gondois@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-30 12:44:02 +01:00
can: sja1000: fix size of OCR_MODE_MASK define
2022-12-19 12:24:16 +01:00
iio: st_sensors: Add a local lock for protecting odr
2022-06-14 18:11:59 +02:00
mailbox: zynqmp: Fix typo in IPI documentation
2023-05-17 11:35:55 +02:00
net: xgene: Move shared header file into include/linux
2023-02-06 07:52:47 +01:00
mfd: t7l66xb: Drop platform disable callback
2022-08-25 11:18:04 +02:00
RDMA/mlx4: Do not map the core_clock page to user space unless enabled
2021-06-16 11:59:44 +02:00
net/mlx5: Fix possible use-after-free in async command interface
2022-11-03 23:56:56 +09:00
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2022-12-08 11:23:04 +01:00
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2021-04-21 12:56:16 +02:00
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2022-09-05 10:27:41 +02:00
platform/x86: pmc_atom: Fix SLP_TYPx bitfield mask
2022-09-15 12:04:50 +02:00
power: supply: max17042_battery: fix typo in MAx17042_TOFF
2021-09-15 09:47:27 +02:00
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2023-02-06 07:52:49 +01:00
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2022-03-19 13:40:15 +01:00
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2021-07-14 16:53:48 +02:00
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2022-07-29 17:14:18 +02:00
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2022-04-15 14:18:01 +02:00
block: return ELEVATOR_DISCARD_MERGE if possible
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2022-06-14 18:11:34 +02:00
bpf: Fix pointer arithmetic mask tightening under state pruning
2021-09-15 09:47:39 +02:00
fs: only do a memory barrier for the first set_buffer_uptodate()
2022-09-15 12:04:49 +02:00
kbuild: avoid static_assert for genksyms
2020-12-16 10:56:58 +01:00
drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()
2021-09-26 14:07:10 +02:00
cgroup: Use separate src/dst nodes when preloading css_sets for migration
2022-07-21 20:59:17 +02:00
memcg: fix possible use-after-free in memcg_write_event_control()
2022-12-14 11:30:43 +01:00
clk: Provide new devm_clk helpers for prepared and enabled clocks
2023-02-06 07:52:34 +01:00
compiler.h: fix barrier_data() on clang
2020-12-16 10:56:59 +01:00
compiler.h: Raise minimum version of GCC to 5.1 for arm64
2021-01-23 15:57:55 +01:00
compiler.h: Introduce absolute_pointer macro
2021-09-30 10:09:25 +02:00
vmlinux.lds.h: Create section for protection against instrumentation
2021-02-17 10:35:16 +01:00
serial: core: Fix initializing and restoring termios speed
2021-11-17 09:48:25 +01:00
vt: Fix character height handling with VT_RESIZEX
2021-05-26 12:05:20 +02:00
x86/bugs: Report AMD retbleed vulnerability
2022-10-07 09:16:54 +02:00
firmware: arm_sdei: Fix sleep from invalid context BUG
2023-05-30 12:44:02 +01:00
crypto - shash: reduce minimum alignment of shash_desc structure
2021-03-09 11:09:38 +01:00
debugfs: regset32: Add Runtime PM support
2023-05-17 11:35:32 +02:00
PM/devfreq: governor: Add a private governor_data for governor
2023-01-18 11:41:52 +01:00
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2022-06-25 12:44:35 +02:00
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2023-05-30 12:44:01 +01:00
linux/dim: Do nothing if no time delta between samples
2023-05-30 12:44:01 +01:00
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2021-01-19 18:26:13 +01:00
dma-mapping: add generic helpers for mapping sgtable objects
2023-02-25 11:53:25 +01:00
dma-mapping: drop the dev argument to arch_sync_dma_for_*
2023-04-05 11:16:43 +02:00
dyndbg: fix module.dyndbg handling
2022-10-26 13:22:37 +02:00
misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom
2021-03-11 14:06:50 +01:00
efi: random: reduce seed size to 32 bytes
2022-11-10 17:57:55 +01:00
kyber: fix out of bounds access when preempted
2021-05-19 10:08:30 +02:00
elfcore: correct reference to CONFIG_UML
2021-10-27 09:54:27 +02:00
PM: EM: Increase energy calculation precision
2021-09-15 09:47:33 +02:00
etherdevice: Adjust ether_addr* prototypes to silence -Wstringop-overead
2022-04-27 13:50:45 +02:00
eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD
2023-01-18 11:40:58 +01:00
extcon: Add stubs for extcon_register_notifier_all() functions
2021-04-07 14:47:43 +02:00
fbcon: Prevent that screen size is smaller than font size
2022-07-12 16:30:47 +02:00
bpf: Prevent increasing bpf_jit_limit above max
2021-11-17 09:48:20 +01:00
Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts
2020-10-14 10:32:56 +02:00
libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
2023-01-18 11:40:55 +01:00
devtmpfs regression fix: reconfigure on each mount
2022-01-20 09:19:17 +01:00
fscrypt: add fscrypt_symlink_getattr() for computing st_size
2021-09-12 08:56:38 +02:00
fsnotify: invalidate dcache before IN_DELETE event
2022-02-01 17:24:39 +01:00
ftrace: Mark get_lock_parent_ip() __always_inline
2023-04-20 12:07:34 +02:00
block/diskstats: more accurate approximation of io_ticks for slow disks
2020-10-07 08:01:29 +02:00
HID: core: Provide new max_buffer_size attribute to over-ride the default
2023-03-22 13:28:10 +01:00
mm/highmem: Lift memcpy_[to|from]_page to core
2023-01-18 11:41:55 +01:00
hil/parisc: Disable HIL driver when it gets stuck
2020-11-05 11:43:36 +01:00
hrtimer: Ensure timerfd notification for HIGHRES=n
2021-09-15 09:47:26 +02:00
mm/thp: make is_huge_zero_pmd() safe and quicker
2021-06-30 08:47:52 -04:00
hugetlb: check for undefined shift on 32 bit architectures
2023-02-22 12:50:39 +01:00
random: pull add_hwgenerator_randomness() declaration into random.h
2022-06-22 14:11:12 +02:00
i2c: Add I2C_AQ_NO_REP_START adapter quirk
2021-05-19 10:08:22 +02:00
net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending
2021-03-04 10:26:53 +01:00
net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit()
2022-03-23 09:12:07 +01:00
macvlan: macvlan_count_rx() needs to be aware of preemption
2021-03-30 14:35:25 +02:00
net: add vlan_get_protocol_and_depth() helper
2023-05-30 12:44:01 +01:00
ima: Align ima_file_mmap() parameters with mmap_file LSM hook
2023-03-11 16:44:02 +01:00
net: igmp: increase size of mr_ifc_count
2021-08-18 08:57:01 +02:00
iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built
2021-02-03 23:26:01 +01:00
genirq: Add IRQF_NO_AUTOEN for request_irq/nmi()
2023-05-17 11:35:46 +02:00
iomap: iomap that extends beyond EOF should be marked dirty
2022-09-28 11:03:58 +02:00
iommu: Add gfp parameter to iommu_ops::map
2023-02-22 12:50:31 +01:00
iommu/iova: Fix module config properly
2022-10-26 13:22:46 +02:00
shm: extend forced shm destroy to support objects from several IPC nses
2021-12-01 09:23:35 +01:00
ipv6: make mc_forwarding atomic
2022-04-15 14:18:32 +02:00
genirq: Provide IRQCHIP_AFFINITY_PRE_STARTUP
2021-08-18 08:57:02 +02:00
irqdomain: Change the type of 'size' in __irq_domain_add() to be consistent
2023-03-17 08:32:49 +01:00
kdev_t: always inline major/minor helper functions
2021-01-09 13:44:54 +01:00
panic: Consolidate open-coded panic_on_warn checks
2023-02-06 07:52:50 +01:00
genirq: Fix the return type of kstat_cpu_irqs_sum()
2023-03-11 16:43:38 +01:00
kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
2022-07-02 16:28:50 +02:00
certs: Fix blacklist flag type confusion
2021-03-04 10:26:29 +01:00
kfifo: fix kfifo_to_user() return type
2022-08-25 11:18:04 +02:00
mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged
2020-10-14 10:33:05 +02:00
x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range
2023-03-11 16:44:02 +01:00
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 15:35:49 +01:00
x86/kvm/vmx: Make noinstr clean
2022-10-07 09:16:54 +02:00
libata: fix read log timeout value
2021-11-17 09:48:17 +01:00
linkage: Introduce new macros for assembler symbols
2020-11-10 12:37:24 +01:00
include/linux/list.h: add a macro to test if entry is pointing to the head
2021-09-22 12:26:20 +02:00
binder: use cred instead of task for selinux checks
2021-11-17 09:48:16 +01:00
mailbox: forward the hrtimer if not queued and under a lock
2022-06-14 18:11:42 +02:00
net: phy: marvell: fix detection of PHY on Topaz switches
2021-04-21 12:56:18 +02:00
ext4: fix deadlock due to mbcache entry corruption
2023-01-18 11:41:56 +01:00
rtc: mc146818-lib: Fix the AltCentury for AMD platforms
2022-05-25 09:14:32 +02:00
net: mdio: introduce a shutdown method to mdio device drivers
2021-10-09 14:39:49 +02:00
memblock: fix memblock_phys_alloc() section mismatch error
2022-01-05 12:37:44 +01:00
mm: memcontrol: fix occasional OOMs due to proportional memory.low reclaim
2021-08-26 08:36:22 -04:00
mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()
2021-09-22 12:26:43 +02:00
memstick: Skip allocating card when removing host
2020-10-07 08:01:25 +02:00
mmap locking API: initial implementation as rwsem wrappers
2022-07-29 17:14:18 +02:00
mm: fix struct page layout on 32-bit systems
2021-05-19 10:08:31 +02:00
mmap locking API: initial implementation as rwsem wrappers
2022-07-29 17:14:18 +02:00
mm: Fix '.data.once' orphan section warning
2022-12-08 11:23:04 +01:00
arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
2022-05-15 19:54:46 +02:00
x86/cpu: Add a steppings field to struct x86_cpu_id
2022-10-07 09:16:54 +02:00
modules: inherit TAINT_PROPRIETARY_MODULE
2021-05-11 14:04:04 +02:00
PCI/MSI: Protect msi_desc::masked for multi-MSI
2021-08-18 08:57:03 +02:00
locking/mutex: Fix non debug version of mutex_lock_io_nested()
2021-03-30 14:35:29 +02:00
net: introduce helper sendpage_ok() in include/linux/net.h
2020-10-14 10:33:00 +02:00
net: Fix features skip in for_each_netdev_feature()
2022-05-18 09:47:24 +02:00
net_sched: add __rcu annotation to netdev->qdisc
2023-04-05 11:16:46 +02:00
netfilter: clear skb->next in NF_HOOK_LIST()
2020-12-02 08:49:44 +01:00
netfilter: use actual socket sk rather than skb sk when routing harder
2020-11-18 19:20:17 +01:00
netfilter: use actual socket sk rather than skb sk when routing harder
2020-11-18 19:20:17 +01:00
NFS: swap IO handling is slightly different for O_DIRECT IO
2022-04-15 14:18:35 +02:00
watchdog: export lockup_detector_reconfigure
2022-08-25 11:18:37 +02:00
mm: don't rely on system state to detect hot-plug operations
2020-10-07 08:01:30 +02:00
nodemask: Fix return values to be unsigned
2022-06-14 18:12:02 +02:00
uaccess: Add speculation barrier to copy_from_user()
2023-02-25 11:53:26 +01:00
nvme-tcp: fix nvme_tcp_term_pdu to match spec
2023-04-05 11:16:38 +02:00
nvme: handle the persistent internal error AER
2023-05-17 11:35:43 +02:00
of: fix linker-section match-table corruption
2021-01-06 14:48:37 +01:00
of: clk: Make <linux/of_clk.h> self-contained
2021-12-08 09:01:08 +01:00
once: fix section mismatch on clang builds
2022-11-01 19:06:42 +01:00
mm, oom: make the calculation of oom badness more accurate
2021-09-03 10:08:12 +02:00
overflow: Include header file with SIZE_MAX declaration
2020-10-29 09:57:51 +01:00
mm/page_owner: change split_page_owner to take a count
2020-10-29 09:57:52 +01:00
mm, futex: fix shared futex pgoff on shmem huge page
2021-06-30 08:47:55 -04:00
PCI/ACPI: Add Ampere Altra SOC MCFG quirk
2021-09-26 14:07:05 +02:00
PCI: Reduce warnings on possible RW1C corruption
2022-04-15 14:18:15 +02:00
PCI: Add SolidRun vendor ID
2023-03-17 08:32:52 +01:00
perf: Protect perf_guest_cbs with RCU
2022-01-20 09:19:18 +01:00
PM: runtime: Fix unpaired parent child_count for force_resume
2021-05-19 10:08:20 +02:00
PM: domains: Restore comment indentation for generic_pm_domain.child_links
2023-05-17 11:36:04 +02:00
PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter
2020-12-30 11:50:53 +01:00
siphash: use one source of truth for siphash permutations
2022-06-22 14:11:16 +02:00
i40e: optimise prefetch page refcount
2020-12-30 11:50:55 +01:00
printk: declare printk_deferred_{enter,safe}() in include/linux/printk.h
2023-05-17 11:36:04 +02:00
net, proc: Provide PROC_FS=n fallback for proc_create_net_single_write()
2023-01-18 11:41:02 +01:00
psi: Fix uaf issue when psi trigger is destroyed while being polled
2022-02-05 12:35:36 +01:00
psi: Fix uaf issue when psi trigger is destroyed while being polled
2022-02-05 12:35:36 +01:00
ptp: improve max_adj check against unreasonable values
2021-06-23 14:41:26 +02:00
ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
2022-06-14 18:11:24 +02:00
serial: qcom_geni_serial: To correct QUP Version detection logic
2020-11-01 12:01:06 +01:00
quota: Factor out setup of quota inode
2023-01-18 11:42:02 +01:00
random: always mix cycle counter in add_latent_entropy()
2023-02-25 11:53:25 +01:00
random: quiet urandom warning ratelimit suppression message
2022-06-29 08:58:45 +02:00
rcu/nocb: Perform deferred wake up before last idle's need_resched() check
2021-03-04 10:26:47 +01:00
locking/refcount: Consolidate implementations of refcount_t
2022-07-29 17:14:17 +02:00
tracing/ring-buffer: Have polling block on watermark
2022-12-08 11:23:05 +01:00
mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse
2022-09-05 10:27:46 +02:00
rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
2021-11-17 09:48:44 +01:00
misc: rtsx_usb: use separate command and response buffers
2022-07-12 16:30:49 +02:00
rwsem: Implement down_read_interruptible
2021-01-09 13:44:55 +01:00
scatterlist: add generic wrappers for iterating over sgtable objects
2023-02-25 11:53:25 +01:00
kernel/sched: Remove dl_boosted flag comment
2022-09-05 10:27:39 +02:00
lockdown: also lock down previous kgdb use
2022-06-06 08:33:48 +02:00
seq_buf: Avoid type mismatch for seq_buf_init
2020-12-30 11:51:21 +01:00
serial: Create uart_xmit_advance()
2022-09-28 11:04:08 +02:00
sh: intc: Avoid spurious sizeof-pointer-div warning
2023-03-22 13:28:08 +01:00
siphash: use one source of truth for siphash permutations
2022-06-22 14:11:16 +02:00
netfilter: nf_tables: fix ifdef to also consider nf_tables=m
2023-04-26 11:24:02 +02:00
bpf, sockmap: Fix sk->prot unhash op reset
2021-04-14 08:24:12 +02:00
smp: Fix smp_call_function_single_async prototype
2021-05-14 09:44:33 +02:00
net: make get_net_ns return error if NET_NS is disabled
2021-06-23 14:41:25 +02:00
net: stmmac: do not stop RX_CLK in Rx LPI state for qcs404 SoC
2023-02-22 12:50:34 +01:00
stop_machine: mark helpers __always_inline
2021-03-17 17:03:56 +01:00
PM: s2idle: ACPI: Fix wakeup interrupts handling
2022-02-16 12:52:50 +01:00
swap: fix swapfile read/write offset
2021-03-07 12:20:49 +01:00
swiotlb: using SIZE_MAX needs limits.h included
2020-11-24 13:29:04 +01:00
sysctl: add a new register_sysctl_init() interface
2023-02-06 07:52:48 +01:00
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
2021-03-07 12:20:48 +01:00
tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
2022-10-26 13:22:26 +02:00
tee: export teedev_open() and teedev_close_context()
2022-03-02 11:41:04 +01:00
thermal/core: Fix thermal_cooling_device_register() prototype
2021-09-26 14:07:10 +02:00
kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
2021-03-24 11:26:44 +01:00
tick/nohz: Fix cpu_is_hotpluggable() by checking with nohz subsystem
2023-05-17 11:35:57 +02:00
Revert "time: Handle negative seconds correctly in timespec64_to_ns()"
2021-09-16 12:56:13 +02:00
timerqueue: Use rb_entry_safe() in timerqueue_getnext()
2023-01-18 11:40:53 +01:00
timekeeping: Add raw clock fallback for random_get_entropy()
2022-06-22 14:11:15 +02:00
sched/topology: Make sched_init_numa() use a set for the deduplicating sort
2022-03-08 19:07:48 +01:00
efi: tpm: Avoid READ_ONCE() for accessing the event log
2023-01-18 11:42:00 +01:00
seq_buf: Avoid type mismatch for seq_buf_init
2020-12-30 11:51:21 +01:00
tracing: Make tracepoint lockdep check actually test something
2023-03-22 13:28:08 +01:00
tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH
2023-05-17 11:36:04 +02:00
tty: fix return value for unsupported ioctls
2021-05-14 09:44:22 +02:00
tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
2022-07-29 17:14:20 +02:00
u64_stats,lockdep: Fix u64_stats_init() vs lockdep
2021-03-30 14:35:22 +02:00
uaccess: Add minimum bounds check on kernel buffer size
2023-03-11 16:43:56 +01:00
udp: fix skb_copy_and_csum_datagram with odd segment sizes
2021-02-17 10:35:19 +01:00
usb: acpi: add helper to check port lpm capability using acpi _DSM
2023-01-24 07:17:59 +01:00
usb-storage: Add quirk to defeat Kindle's automatic unload
2021-03-24 11:26:40 +01:00
virtio: unexport virtio_finalize_features
2022-03-16 13:21:48 +01:00
virtio: acknowledge all features before access
2022-03-16 13:21:48 +01:00
net: skip virtio_net_hdr_set_proto if protocol already set
2021-12-29 12:23:34 +01:00
linux/vt_buffer.h: allow either builtin or modular for macros
2023-05-17 11:35:46 +02:00
wait: Fix __wait_event_hrtimeout for RT/DL tasks
2022-08-25 11:17:29 +02:00
XArray: add xas_split
2021-06-10 13:37:14 +02:00
zsmalloc: account the number of compacted pages correctly
2021-03-07 12:20:49 +01:00
