--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -159,8 +159,9 @@ exc_##n##_common:                                                       \
        std     r9,GPR9(r1);            /* save r9 in stackframe */         \
        std     r10,_NIP(r1);           /* save SRR0 to stackframe */       \
        std     r11,_MSR(r1);           /* save SRR1 to stackframe */       \
+       beq     1f                      /* if from kernel mode */

Missing semicolon 

Ok, that's not enough. Please test & fix & resend.