From: Stewart Smith <stewart@linux.vnet.ibm.com>
Date: Thu, 12 Feb 2015 05:25:29 +0000 (+1100)
Subject: powerpc/powernv: only call OPAL_RESEND_DUMP if firmware supports it
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7e73a3b7f34240871fa5556d952e801178970741;p=deliverable%2Flinux.git

powerpc/powernv: only call OPAL_RESEND_DUMP if firmware supports it

Not all OPAL platforms support resending system dumps, so check
that current firmware supports it first. Otherwise we get firmware
complaining:
"OPAL: Called with bad token 91 !"

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Acked-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index 23260f7dfa7a..5aa9c1ce4de3 100644
--- a/arch/powerpc/platforms/powernv/opal-dump.c
+++ b/arch/powerpc/platforms/powernv/opal-dump.c
@@ -452,5 +452,6 @@ void __init opal_platform_dump_init(void)
 		return;
 	}
 
-	opal_dump_resend_notification();
+	if (opal_check_token(OPAL_DUMP_RESEND))
+		opal_dump_resend_notification();
 }