x86/mce: Get rid of cpu_missing

Get rid of cpu_missing because

  7bb39313cd62 ("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

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 6ed3653..30de00f 100644 (file)
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -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);