[PATCH] EDAC/mce_amd: Output Scalable MCA processor warning once

[Prarit Bhargava]

This warning is output for every virtual cpu in a guest on an EPYC 2
system.  The warning only needs to be logged one time.

Output the warning only once.

Signed-off-by: Prarit Bhargava <prarit@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: James Morse <james.morse@xxxxxxx>
Cc: Robert Richter <rrichter@xxxxxxxxxxx>
Cc: linux-edac@xxxxxxxxxxxxxxx
---
 drivers/edac/mce_amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index ea980c556f2e..8874b7722b2f 100644
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -1239,7 +1239,7 @@ static int __init mce_amd_init(void)
 
 	case 0x17:
 	case 0x18:
-		pr_warn("Decoding supported only on Scalable MCA processors.\n");
+		pr_warn_once("Decoding supported only on Scalable MCA processors.\n");
 		return -EINVAL;
 
 	default:
-- 
2.21.1