[PATCH] RAID6 Altivec fix

This patch fixes a signedness bug with RAID6 for Altivec, and makes the
Altivec code testable in userspace.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/md/raid6algos.c

@@ -19,6 +19,7 @@
 #include "raid6.h"
 #ifndef __KERNEL__
 #include <sys/mman.h>
+#include <stdio.h>
 #endif
 
 struct raid6_calls raid6_call;