From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Huacai Chen <chenhuacai@loongson.cn>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject: [PATCH 4.9 044/101] MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
Date: Tue, 23 Aug 2022 10:03:17 +0200 [thread overview]
Message-ID: <20220823080036.210365370@linuxfoundation.org> (raw)
In-Reply-To: <20220823080034.579196046@linuxfoundation.org>
From: Huacai Chen <chenhuacai@loongson.cn>
commit e1a534f5d074db45ae5cbac41d8912b98e96a006 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>
---
arch/mips/kernel/proc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -162,7 +162,7 @@ static void *c_start(struct seq_file *m,
{
unsigned long i = *pos;
- return i < NR_CPUS ? (void *) (i + 1) : NULL;
+ return i < nr_cpu_ids ? (void *) (i + 1) : NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
next prev parent reply other threads:[~2022-08-23 8:23 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-23 8:02 [PATCH 4.9 000/101] 4.9.326-rc1 review Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 001/101] Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 002/101] ntfs: fix use-after-free in ntfs_ucsncmp() Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 003/101] scsi: ufs: host: Hold reference returned by of_parse_phandle() Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 004/101] net: ping6: Fix memleak in ipv6_renew_options() Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 005/101] net: sungem_phy: Add of_node_put() for reference returned by of_get_parent() Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 006/101] netfilter: nf_queue: do not allow packet truncation below transport header offset Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 007/101] ARM: crypto: comment out gcc warning that breaks clang builds Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 008/101] mt7601u: add USB device ID for some versions of XiaoDu WiFi Dongle Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 009/101] ion: Make user_ion_handle_put_nolock() a void function Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 010/101] selinux: Minor cleanups Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 011/101] proc: Pass file mode to proc_pid_make_inode Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 012/101] selinux: Clean up initialization of isec->sclass Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 013/101] selinux: Convert isec->lock into a spinlock Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 014/101] selinux: fix error initialization in inode_doinit_with_dentry() Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 015/101] selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 016/101] include/uapi/linux/swab.h: fix userspace breakage, use __BITS_PER_LONG for swap Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 017/101] init/main: Fix double "the" in comment Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 018/101] init/main: properly align the multi-line comment Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 019/101] init: move stack canary initialization after setup_arch Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 020/101] init/main.c: extract early boot entropy from the passed cmdline Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 021/101] ACPI: video: Force backlight native for some TongFang devices Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 022/101] ACPI: video: Shortening quirk list by identifying Clevo by board_name only Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 023/101] random: only call boot_init_stack_canary() once Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 024/101] macintosh/adb: fix oob read in do_adb_query() function Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 025/101] Makefile: link with -z noexecstack --no-warn-rwx-segments Greg Kroah-Hartman
2022-08-23 8:02 ` [PATCH 4.9 026/101] x86: link vdso and boot " Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 027/101] ALSA: bcd2000: Fix a UAF bug on the error path of probing Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 028/101] add barriers to buffer_uptodate and set_buffer_uptodate Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 029/101] KVM: SVM: Dont BUG if userspace injects an interrupt with GIF=0 Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 030/101] KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 031/101] ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 032/101] ALSA: hda/cirrus - support for iMac 12,1 model Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 033/101] vfs: Check the truncate maximum size in inode_newsize_ok() Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 034/101] usbnet: Fix linkwatch use-after-free on disconnect Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 035/101] parisc: Fix device names in /proc/iomem Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 036/101] drm/nouveau: fix another off-by-one in nvbios_addr Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 037/101] bpf: fix overflow in prog accounting Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 038/101] fuse: limit nsec Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 039/101] md-raid10: fix KASAN warning Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 040/101] ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr() Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 041/101] PCI: Add defines for normal and subtractive PCI bridges Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 042/101] powerpc/fsl-pci: Fix Class Code of PCIe Root Port Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 043/101] powerpc/powernv: Avoid crashing if rng is NULL Greg Kroah-Hartman
2022-08-23 8:03 ` Greg Kroah-Hartman [this message]
2022-08-23 8:03 ` [PATCH 4.9 045/101] USB: HCD: Fix URB giveback issue in tasklet function Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 046/101] netfilter: nf_tables: fix null deref due to zeroed list head Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 047/101] scsi: zfcp: Fix missing auto port scan and thus missing target ports Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 048/101] x86/olpc: fix logical not is only applied to the left hand side Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 049/101] spmi: trace: fix stack-out-of-bound access in SPMI tracing functions Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 050/101] ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 051/101] ext4: make sure ext4_append() always allocates new block Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 052/101] ext4: fix use-after-free in ext4_xattr_set_entry Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 053/101] ext4: update s_overhead_clusters in the superblock during an on-line resize Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 054/101] ext4: fix extent status tree race in writeback error recovery path Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 055/101] ext4: correct max_inline_xattr_value_size computing Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 056/101] dm raid: fix address sanitizer warning in raid_status Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 057/101] net_sched: cls_route: remove from list when handle is 0 Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 058/101] btrfs: reject log replay if there is unsupported RO compat flag Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 059/101] tcp: fix over estimation in sk_forced_mem_schedule() Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 060/101] scsi: sg: Allow waiting for commands to complete on removed device Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 061/101] Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP" Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 062/101] Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 063/101] nios2: time: Read timer in get_cycles only if initialized Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 064/101] net/9p: Initialize the iounit field during fid creation Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 065/101] net_sched: cls_route: disallow handle of 0 Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 066/101] ALSA: info: Fix llseek return value when using callback Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 067/101] rds: add missing barrier to release_refill Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 068/101] ata: libata-eh: Add missing command name Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 069/101] btrfs: fix lost error handling when looking up extended ref on log replay Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 070/101] can: ems_usb: fix clangs -Wunaligned-access warning Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 071/101] NFSv4.1: RECLAIM_COMPLETE must handle EACCES Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 072/101] SUNRPC: Reinitialise the backchannel request buffers before reuse Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 073/101] pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_map Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 074/101] pinctrl: qcom: msm8916: Allow CAMSS GP clocks to be muxed Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 075/101] vsock: Fix memory leak in vsock_connect() Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 076/101] xen/xenbus: fix return type in xenbus_file_read() Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 077/101] atm: idt77252: fix use-after-free bugs caused by tst_timer Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 078/101] nios2: page fault et.al. are *not* restartable syscalls Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 079/101] nios2: dont leave NULLs in sys_call_table[] Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 080/101] nios2: traced syscall does need to check the syscall number Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 081/101] nios2: fix syscall restart checks Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 082/101] nios2: restarts apply only to the first sigframe we build Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 083/101] nios2: add force_successful_syscall_return() Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 084/101] netfilter: nf_tables: really skip inactive sets when allocating name Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 085/101] fec: Fix timer capture timing in `fec_ptp_enable_pps()` Greg Kroah-Hartman
2022-08-23 8:03 ` [PATCH 4.9 086/101] kbuild: clear LDFLAGS in the top Makefile Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 087/101] irqchip/tegra: Fix overflow implicit truncation warnings Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 088/101] usb: host: ohci-ppc-of: Fix refcount leak bug Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 089/101] gadgetfs: ep_io - wait until IRQ finishes Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 090/101] cxl: Fix a memory leak in an error handling path Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 091/101] drivers:md:fix a potential use-after-free bug Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 092/101] ext4: avoid remove directory when directory is corrupted Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 093/101] ext4: avoid resizing to a partial cluster size Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 094/101] tty: serial: Fix refcount leak bug in ucc_uart.c Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 095/101] vfio: Clear the caps->buf to NULL after free Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 096/101] mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_start Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 097/101] ALSA: core: Add async signal helpers Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 098/101] ALSA: timer: Use deferred fasync helper Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 099/101] powerpc/64: Init jump labels before parse_early_param() Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 100/101] video: fbdev: i740fb: Check the argument of i740_calc_vclk() Greg Kroah-Hartman
2022-08-23 8:04 ` [PATCH 4.9 101/101] MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0 Greg Kroah-Hartman
2022-08-23 9:46 ` [PATCH 4.9 000/101] 4.9.326-rc1 review Pavel Machek
2022-08-23 21:00 ` Guenter Roeck
2022-08-23 21:25 ` Guenter Roeck
2022-08-24 7:24 ` Greg Kroah-Hartman
2022-08-23 22:18 ` Shuah Khan
2022-08-24 6:13 ` Naresh Kamboju
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