[XFS] Cleanup some -Wundef flag warnings in the endian macros (thanks
Christoph).

SGI-PV: 942400
SGI-Modid: xfs-linux-melb:xfs-kern:23771a

Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index eb7fdc6..a884cea 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -112,7 +112,7 @@
  * this has endian issues, of course.
  */
 
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#ifndef XFS_NATIVE_HOST
 #define GET_CLIENT_ID(i,arch) \
     ((i) & 0xff)
 #else
@@ -414,14 +414,10 @@
 #define XLOG_FMT_IRIX_BE  3
 
 /* our fmt */
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define XLOG_FMT XLOG_FMT_LINUX_LE
-#else
-#if __BYTE_ORDER == __BIG_ENDIAN
+#ifdef XFS_NATIVE_HOST
 #define XLOG_FMT XLOG_FMT_LINUX_BE
 #else
-#error unknown byte order
-#endif
+#define XLOG_FMT XLOG_FMT_LINUX_LE
 #endif
 
 typedef struct xlog_rec_header {