adfs: use get/put_endian helpers

index ea7df21..c8f2736 100644
@@ -73,11 +73,13 @@ static inline int adfs_readname(char *buf, char *ptr, int maxlen)
 	  *(u8 *)(bh[_buf]->b_data + _off);	\
 	})
 
-#define dir_u32(idx)				\
-	({ int _buf = idx >> blocksize_bits;	\
-	   int _off = idx - (_buf << blocksize_bits);\
-	  *(__le32 *)(bh[_buf]->b_data + _off);	\
-	})
+static u32 get_dir_u32(int idx, const struct adfs_dir *dir)
+{
+	int buf = (idx >> dir->sb->s_blocksize_bits);
+	int off = idx - (buf << dir->sb->s_blocksize_bits);
+
+	return get_le32((__le32 *)(dir->bh[buf]->b_data + off));
+}
 
 #define bufoff(_bh,_idx)			\
 	({ int _buf = _idx >> blocksize_bits;	\

@@ -108,7 +110,7 @@ adfs_dir_checkbyte(const struct adfs_dir *dir)
 	do {
 		last += 26;
 		do {
-			dircheck = le32_to_cpu(dir_u32(i)) ^ ror13(dircheck);
+			dircheck = get_dir_u32(i, dir) ^ ror13(dircheck);
 
 			i += sizeof(u32);
 		} while (i < (last & ~3));