[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_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 09c4135..09a77b1 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -2017,7 +2017,7 @@
 				ext_flag);
 }
 
-#if __BYTE_ORDER != __BIG_ENDIAN
+#ifndef XFS_NATIVE_HOST
 /* Endian flipping versions of the bmbt extraction functions */
 void
 xfs_bmbt_disk_get_all(
@@ -2087,7 +2087,7 @@
 	return xfs_extent_state(xfs_bmbt_disk_get_blockcount(r),
 				ext_flag);
 }
-#endif
+#endif /* XFS_NATIVE_HOST */
 
 
 /*
@@ -2531,7 +2531,7 @@
 #endif	/* XFS_BIG_BLKNOS */
 }
 
-#if __BYTE_ORDER != __BIG_ENDIAN
+#ifndef XFS_NATIVE_HOST
 /*
  * Set all the fields in a bmap extent record from the uncompressed form.
  */
@@ -2617,7 +2617,7 @@
 	}
 #endif	/* XFS_BIG_BLKNOS */
 }
-#endif
+#endif /* XFS_NATIVE_HOST */
 
 /*
  * Set the blockcount field in a bmap extent record.