[PATCH] turn many #if $undefined_string into #ifdef $undefined_string

turn many #if $undefined_string into #ifdef $undefined_string to fix some
warnings after -Wno-def was added to global CFLAGS

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/scsi/lpfc/lpfc_compat.h b/drivers/scsi/lpfc/lpfc_compat.h
index 275ba34..a11f1ae 100644
--- a/drivers/scsi/lpfc/lpfc_compat.h
+++ b/drivers/scsi/lpfc/lpfc_compat.h
@@ -30,8 +30,9 @@
 However on a big-endian host, copy 4 bytes at a time,
 using writel() and readl().
  *******************************************************************/
+#include <asm/byteorder.h>
 
-#if __BIG_ENDIAN
+#ifdef __BIG_ENDIAN
 
 static inline void
 lpfc_memcpy_to_slim(void __iomem *dest, void *src, unsigned int bytes)