[PATCH] fix error: __u32 undeclared

Build fix for s390 declare __u32 and __u64.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-generic/bitops/hweight.h b/include/asm-generic/bitops/hweight.h
index 8be6f17..fbbc383 100644
--- a/include/asm-generic/bitops/hweight.h
+++ b/include/asm-generic/bitops/hweight.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_HWEIGHT_H_
 
+#include <asm/types.h>
+
 extern unsigned int hweight32(unsigned int w);
 extern unsigned int hweight16(unsigned int w);
 extern unsigned int hweight8(unsigned int w);