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x86/mce: Fix all mce notifiers to update the mce->kflags bitmask

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If the handler took any action to log or deal with the error, set a bit
in mce->kflags so that the default handler on the end of the machine
check chain can see what has been done.

Get rid of NOTIFY_STOP returns. Make the EDAC and dev-mcelog handlers
skip over errors already processed by CEC.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20200214222720.13168-5-tony.luck@intel.com
This commit is contained in:
Tony Luck
2020-02-14 14:27:17 -08:00
committed by Borislav Petkov
parent 1de08dccd3
commit 23ba710a08
10 changed files with 37 additions and 12 deletions
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4
drivers/edac/skx_common.c
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@@ -577,6 +577,9 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
if (edac_get_report_status() == EDAC_REPORTING_DISABLED)
return NOTIFY_DONE;
if (mce->kflags & MCE_HANDLED_CEC)
return NOTIFY_DONE;
/* ignore unless this is memory related with an address */
if ((mce->status & 0xefff) >> 7 != 1 || !(mce->status & MCI_STATUS_ADDRV))
return NOTIFY_DONE;
@@ -616,6 +619,7 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
skx_mce_output_error(mci, mce, &res);
mce->kflags |= MCE_HANDLED_EDAC;
return NOTIFY_DONE;
}