diff --git a/fs/xfs/xfs_dir2_block.h b/fs/xfs/xfs_dir2_block.h
index 5a578b8..70dcbe8 100644
--- a/fs/xfs/xfs_dir2_block.h
+++ b/fs/xfs/xfs_dir2_block.h
@@ -74,53 +74,37 @@
 /*
  * Pointer to the leaf header embedded in a data block (1-block format)
  */
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BLOCK_TAIL_P)
-xfs_dir2_block_tail_t *
-xfs_dir2_block_tail_p(struct xfs_mount *mp, xfs_dir2_block_t *block);
 #define	XFS_DIR2_BLOCK_TAIL_P(mp,block)	xfs_dir2_block_tail_p(mp,block)
-#else
-#define	XFS_DIR2_BLOCK_TAIL_P(mp,block)	\
-	(((xfs_dir2_block_tail_t *)((char *)(block) + (mp)->m_dirblksize)) - 1)
-#endif
+static inline xfs_dir2_block_tail_t *
+xfs_dir2_block_tail_p(struct xfs_mount *mp, xfs_dir2_block_t *block)
+{
+	return (((xfs_dir2_block_tail_t *)
+		((char *)(block) + (mp)->m_dirblksize)) - 1);
+}
 
 /*
  * Pointer to the leaf entries embedded in a data block (1-block format)
  */
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BLOCK_LEAF_P)
-struct xfs_dir2_leaf_entry *xfs_dir2_block_leaf_p(xfs_dir2_block_tail_t *btp);
-#define	XFS_DIR2_BLOCK_LEAF_P(btp) \
-	xfs_dir2_block_leaf_p(btp)
-#else
-#define	XFS_DIR2_BLOCK_LEAF_P(btp)	\
-	(((struct xfs_dir2_leaf_entry *)(btp)) - INT_GET((btp)->count, ARCH_CONVERT))
-#endif
+#define	XFS_DIR2_BLOCK_LEAF_P(btp)	xfs_dir2_block_leaf_p(btp)
+static inline struct xfs_dir2_leaf_entry *
+xfs_dir2_block_leaf_p(xfs_dir2_block_tail_t *btp)
+{
+	return (((struct xfs_dir2_leaf_entry *)
+		(btp)) - INT_GET((btp)->count, ARCH_CONVERT));
+}
 
 /*
  * Function declarations.
  */
-
-extern int
-	xfs_dir2_block_addname(struct xfs_da_args *args);
-
-extern int
-	xfs_dir2_block_getdents(struct xfs_trans *tp, struct xfs_inode *dp,
-				struct uio *uio, int *eofp, struct xfs_dirent *dbp,
-				xfs_dir2_put_t put);
-
-extern int
-	xfs_dir2_block_lookup(struct xfs_da_args *args);
-
-extern int
-	xfs_dir2_block_removename(struct xfs_da_args *args);
-
-extern int
-	xfs_dir2_block_replace(struct xfs_da_args *args);
-
-extern int
-	xfs_dir2_leaf_to_block(struct xfs_da_args *args, struct xfs_dabuf *lbp,
-			       struct xfs_dabuf *dbp);
-
-extern int
-	xfs_dir2_sf_to_block(struct xfs_da_args *args);
+extern int xfs_dir2_block_addname(struct xfs_da_args *args);
+extern int xfs_dir2_block_getdents(struct xfs_trans *tp, struct xfs_inode *dp,
+				   struct uio *uio, int *eofp,
+				   struct xfs_dirent *dbp, xfs_dir2_put_t put);
+extern int xfs_dir2_block_lookup(struct xfs_da_args *args);
+extern int xfs_dir2_block_removename(struct xfs_da_args *args);
+extern int xfs_dir2_block_replace(struct xfs_da_args *args);
+extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
+				  struct xfs_dabuf *lbp, struct xfs_dabuf *dbp);
+extern int xfs_dir2_sf_to_block(struct xfs_da_args *args);
 
 #endif	/* __XFS_DIR2_BLOCK_H__ */