linux/arch
Huacai Chen 807adf6ffa MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
commit e1a534f5d0 upstream.

When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected,
cpu_max_bits_warn() generates a runtime warning similar as below while
we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)
instead of NR_CPUS to iterate CPUs.

[    3.052463] ------------[ cut here ]------------
[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0
[    3.070072] Modules linked in: efivarfs autofs4
[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052
[    3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27
[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000
[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430
[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff
[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890
[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa
[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000
[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000
[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000
[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286
[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c
[    3.195868]         ...
[    3.199917] Call Trace:
[    3.203941] [<98000000002086d8>] show_stack+0x38/0x14c
[    3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88
[    3.217625] [<980000000023d268>] __warn+0xd0/0x100
[    3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc
[    3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0
[    3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4
[    3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4
[    3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0
[    3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100
[    3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94
[    3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160
[    3.281824] ---[ end trace 8b484262b4b8c24c ]---

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-21 15:15:26 +02:00
..
alpha tty: the rest, stop using tty_schedule_flip() 2022-07-29 17:19:28 +02:00
arc ARC: entry: fix syscall_trace_exit argument 2022-04-27 13:53:55 +02:00
arm ARM: 9216/1: Fix MAX_DMA_ADDRESS overflow 2022-08-03 12:00:50 +02:00
arm64 crypto: arm64/poly1305 - fix a read out-of-bound 2022-08-11 13:06:45 +02:00
c6x arch-cleanup-2020-10-22 2020-10-23 10:06:38 -07:00
csky csky: patch_text: Fixup last cpu should be master 2022-06-09 10:21:26 +02:00
h8300 h8300: fix PREEMPTION build, TI_PRE_COUNT undefined 2021-02-17 11:02:28 +01:00
hexagon hexagon: clean up timer-regs.h 2021-11-26 10:39:19 +01:00
ia64 ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr() 2022-08-21 15:15:25 +02:00
m68k Revert "m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch" 2022-07-29 17:19:09 +02:00
microblaze uaccess: fix nios2 and microblaze get_user_8() 2022-04-08 14:40:08 +02:00
mips MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK 2022-08-21 15:15:26 +02:00
nds32 nds32: fix access_ok() checks in get/put_user 2022-03-28 09:57:10 +02:00
nios2 nios2: use fallback for random_get_entropy() instead of zero 2022-05-30 09:33:41 +02:00
openrisc openrisc: start CPU timer early in boot 2022-06-09 10:20:55 +02:00
parisc parisc: io_pgetevents_time64() needs compat syscall in 32-bit compat mode 2022-08-21 15:15:23 +02:00
powerpc powerpc/powernv: Avoid crashing if rng is NULL 2022-08-21 15:15:26 +02:00
riscv riscv: set default pm_power_off to NULL 2022-08-21 15:15:21 +02:00
s390 KVM: s390: pv: don't present the ecall interrupt twice 2022-08-21 15:15:20 +02:00
sh sh: convert nommu io{re,un}map() to static inline functions 2022-07-21 21:20:02 +02:00
sparc sparc: use fallback for random_get_entropy() instead of zero 2022-05-30 09:33:42 +02:00
um um: Add missing apply_returns() 2022-07-25 11:26:55 +02:00
x86 KVM: x86: Tag kvm_mmu_x86_module_init() with __init 2022-08-21 15:15:21 +02:00
xtensa xtensa: Fix refcount leak bug in time.c 2022-06-29 08:59:53 +02:00
.gitignore
Kconfig arch/cc: Introduce a function to check for confidential computing features 2021-11-18 14:04:32 +01:00