x86/mce: Clarify comments regarding deferred error

Deferred errors indicate errors that hardware could not fix. But it
still does not cause any interruption to program flow. So it does not
generate any #MC and UC bit in MCx_STATUS is not set.

Correct comment.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1457021458-2522-5-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 72f86882d62a621ee77865aaae10558218ee0c38..cfff34172be07972d3e4681ef8d6455fb57bed2a 100644 (file)
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -40,7 +40,7 @@
 #define MCI_STATUS_AR   (1ULL<<55)  /* Action required */
 
 /* AMD-specific bits */
-#define MCI_STATUS_DEFERRED    (1ULL<<44)  /* declare an uncorrected error */
+#define MCI_STATUS_DEFERRED    (1ULL<<44)  /* uncorrected error, deferred exception */
 #define MCI_STATUS_POISON      (1ULL<<43)  /* access poisonous data */
 #define MCI_STATUS_TCC         (1ULL<<55)  /* Task context corrupt */