--- zzzz-none-000/linux-3.10.107/lib/raid6/sse1.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/lib/raid6/sse1.c	2021-02-04 17:41:59.000000000 +0000
@@ -92,6 +92,7 @@
 
 const struct raid6_calls raid6_sse1x1 = {
 	raid6_sse11_gen_syndrome,
+	NULL,			/* XOR not yet implemented */
 	raid6_have_sse1_or_mmxext,
 	"sse1x1",
 	1			/* Has cache hints */
@@ -154,6 +155,7 @@
 
 const struct raid6_calls raid6_sse1x2 = {
 	raid6_sse12_gen_syndrome,
+	NULL,			/* XOR not yet implemented */
 	raid6_have_sse1_or_mmxext,
 	"sse1x2",
 	1			/* Has cache hints */