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x86/mce: Get rid of cpu_missing

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Get rid of cpu_missing because

  7bb39313cd ("x86/mce: Make mce_timed_out() identify holdout CPUs")

provides a more detailed message about which CPUs are missing.

Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Zhaolong Zhang <zhangzl2013@126.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211109112345.2673403-1-zhangzl2013@126.com
This commit is contained in:
Zhaolong Zhang 2021-11-09 19:23:45 +08:00 committed by Borislav Petkov
parent 70aeb807cf
commit 2322b532ad
1 changed files with 0 additions and 5 deletions
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5
arch/x86/kernel/cpu/mce/core.c
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@ -99,7 +99,6 @@ struct mca_config mca_cfg __read_mostly = {
static DEFINE_PER_CPU(struct mce, mces_seen);
static unsigned long mce_need_notify;
static int cpu_missing;
/*
* MCA banks polled by the period polling timer for corrected events.
@ -314,8 +313,6 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
if (!apei_err)
apei_err = apei_write_mce(final);
}
if (cpu_missing)
pr_emerg(HW_ERR "Some CPUs didn't answer in synchronization\n");
if (exp)
pr_emerg(HW_ERR "Machine check: %s\n", exp);
if (!fake_panic) {
@ -891,7 +888,6 @@ static int mce_timed_out(u64 *t, const char *msg)
cpumask_pr_args(&mce_missing_cpus));
mce_panic(msg, NULL, NULL);
}
cpu_missing = 1;
return 1;
}
*t -= SPINUNIT;
@ -2702,7 +2698,6 @@ struct dentry *mce_get_debugfs_dir(void)
static void mce_reset(void)
{
cpu_missing = 0;
atomic_set(&mce_fake_panicked, 0);
atomic_set(&mce_executing, 0);
atomic_set(&mce_callin, 0);