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Jay Buddhabhatti a96e60a6ea soc: xilinx: rename cpu_number1 to dummy_cpu_number 
[ Upstream commit 4a95449dd9 ]

The per cpu variable cpu_number1 is passed to xlnx_event_handler as
argument "dev_id", but it is not used in this function. So drop the
initialization of this variable and rename it to dummy_cpu_number.
This patch is to fix the following call trace when the kernel option
CONFIG_DEBUG_ATOMIC_SLEEP is enabled:

BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274
    in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0
    preempt_count: 1, expected: 0
    CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.0 #53
    Hardware name: Xilinx Versal vmk180 Eval board rev1.1 (QSPI) (DT)
    Call trace:
     dump_backtrace+0xd0/0xe0
     show_stack+0x18/0x40
     dump_stack_lvl+0x7c/0xa0
     dump_stack+0x18/0x34
     __might_resched+0x10c/0x140
     __might_sleep+0x4c/0xa0
     __kmem_cache_alloc_node+0xf4/0x168
     kmalloc_trace+0x28/0x38
     __request_percpu_irq+0x74/0x138
     xlnx_event_manager_probe+0xf8/0x298
     platform_probe+0x68/0xd8

Fixes: daed80ed07 ("soc: xilinx: Fix for call trace due to the usage of smp_processor_id()")
Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Link: https://lore.kernel.org/r/20240408110610.15676-1-jay.buddhabhatti@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-08-03 08:53:26 +02:00
arch arm64: dts: qcom: sa8775p: mark ethernet devices as DMA-coherent 2024-08-03 08:53:26 +02:00
block block/mq-deadline: Fix the tag reservation code 2024-08-03 08:53:22 +02:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: aead,cipher - zeroize key buffer after use 2024-07-11 12:49:04 +02:00
Documentation scsi: sr: Fix unintentional arithmetic wraparound 2024-07-25 09:50:40 +02:00
drivers soc: xilinx: rename cpu_number1 to dummy_cpu_number 2024-08-03 08:53:26 +02:00
fs kernfs: Convert kernfs_path_from_node_locked() from strlcpy() to strscpy() 2024-08-03 08:53:21 +02:00
include cachefiles: fix slab-use-after-free in fscache_withdraw_volume() 2024-07-25 09:50:57 +02:00
init smp: Provide 'setup_max_cpus' definition on UP too 2024-06-16 13:47:49 +02:00
io_uring io_uring/rsrc: fix incorrect assignment of iter->nr_segs in io_import_fixed 2024-06-27 13:49:10 +02:00
ipc Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
kernel cgroup/cpuset: Prevent UAF in proc_cpuset_show() 2024-08-03 08:53:22 +02:00
lib cpumask: limit FORCE_NR_CPUS to just the UP case 2024-07-25 09:50:47 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm: page_ref: remove folio_try_get_rcu() 2024-07-25 09:50:56 +02:00
net wifi: mac80211: disable softirqs for queued frame handling 2024-07-25 09:50:57 +02:00
rust rust: kernel: require Send for Module implementations 2024-05-17 12:01:56 +02:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:24:47 +01:00
scripts x86/kconfig: Add as-instr64 macro to properly evaluate AS_WRUSS 2024-08-03 08:53:21 +02:00
security ima: Avoid blocking in RCU read-side critical section 2024-07-11 12:49:18 +02:00
sound ALSA: seq: ump: Skip useless ports for static blocks 2024-07-27 11:34:10 +02:00
tools selftests/bpf: Extend tcx tests to cover late tcx_entry release 2024-07-25 09:50:56 +02:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-06-27 13:49:11 +02:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS pwm: Rename pwm_apply_state() to pwm_apply_might_sleep() 2024-06-12 11:12:24 +02:00
Makefile Linux 6.6.43 2024-07-27 11:34:11 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.