Huacai Chen 2e3863cc02 UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK ... commit 16c546e148 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 [ 3.099465] 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] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] 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: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-10-21 12:37:40 +02:00
..
skas	Peter Zijlstra says:	2022-01-11 17:24:45 -08:00
asm-offsets.c
config.c.in	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
dtb.c	um: Fix order of dtb unflatten/early init	2022-03-11 10:44:43 +01:00
dyn.lds.S	UML: add support for KASAN under x86_64	2022-07-17 23:35:22 +02:00
early_printk.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
exec.c	ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP	2022-05-11 14:33:33 -05:00
exitcode.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
gprof_syms.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
initrd.c	um: Extract load file helper from initrd.c	2021-12-22 20:32:36 +01:00
ioport.c	um: add PCI over virtio emulation driver	2021-06-17 21:45:43 +02:00
irq.c	um: add PCI over virtio emulation driver	2021-06-17 21:45:43 +02:00
kmsg_dump.c	printk: introduce a kmsg_dump iterator	2021-03-08 11:43:27 +01:00
ksyms.c	um: rename set_signals() to um_set_signals()	2021-12-21 21:13:44 +01:00
load_file.c	um: Extract load file helper from initrd.c	2021-12-22 20:32:36 +01:00
maccess.c	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
Makefile	um: Add devicetree support	2021-12-22 20:35:01 +01:00
mem.c	- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe	2022-08-05 16:32:45 -07:00
physmem.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
process.c	While looking at the ptrace problems with PREEMPT_RT and the problems	2022-06-03 16:13:25 -07:00
ptrace.c	ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP	2022-05-11 14:33:33 -05:00
reboot.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
sigio.c	um: Support dynamic IRQ allocation	2020-12-13 22:22:08 +01:00
signal.c	ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP	2022-05-11 14:33:33 -05:00
stacktrace.c	UML: add support for KASAN under x86_64	2022-07-17 23:35:22 +02:00
sysrq.c	um: Prevent KASAN splats in dump_stack()	2022-09-19 22:58:48 +02:00
time.c	um: time-travel/signals: fix ndelay() in interrupt	2021-06-17 21:44:52 +02:00
tlb.c	um: remove process stub VMA	2021-02-12 21:37:38 +01:00
trap.c	mm: avoid unnecessary page fault retires on shared memory types	2022-06-16 19:48:27 -07:00
um_arch.c	UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK	2022-10-21 12:37:40 +02:00
um_arch.h	um: Add devicetree support	2021-12-22 20:35:01 +01:00
umid.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
uml.lds.S	arch: um: Fix build for statically linked UML w/ constructors	2022-07-17 23:14:34 +02:00
vmlinux.lds.S