[tip:ras/core] x86/mce: Issue the 'mcelog --ascii' message only on !AMD

[tip-bot for Borislav Petkov]

Commit-ID:  b2fbf6f282147b42d669a4bd4a7b1de2e2d6a792
Gitweb:     https://git.kernel.org/tip/b2fbf6f282147b42d669a4bd4a7b1de2e2d6a792
Author:     Borislav Petkov <bp@xxxxxxx>
AuthorDate: Wed, 21 Feb 2018 11:18:55 +0100
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 21 Feb 2018 17:00:53 +0100

x86/mce: Issue the 'mcelog --ascii' message only on !AMD

mcelog cannot decode AMD MCEs.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: linux-edac <linux-edac@xxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20180221101900.10326-4-bp@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/kernel/cpu/mcheck/mce.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index db5b1e4..d7dff23 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -268,7 +268,9 @@ static void __print_mce(struct mce *m)
 static void print_mce(struct mce *m)
 {
 	__print_mce(m);
-	pr_emerg_ratelimited(HW_ERR "Run the above through 'mcelog --ascii'\n");
+
+	if (m->cpuvendor != X86_VENDOR_AMD)
+		pr_emerg_ratelimited(HW_ERR "Run the above through 'mcelog --ascii'\n");
 }
 
 #define PANIC_TIMEOUT 5 /* 5 seconds */