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 <[email protected]>
Acked-by: Vasant Hegde <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index 23260f7dfa7aeca7446dcfcc6e59f5ced346e6b1..5aa9c1ce4de3eabd8476211d7323622dd7c60254 100644 (file)
--- 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();
 }