#define F2FS_BLKSIZE 4096 /* support only 4KB block */
#define F2FS_MAX_EXTENSION 64 /* # of extension entries */
-#define NULL_ADDR 0x0U
-#define NEW_ADDR -1U
+#define NULL_ADDR ((block_t)0) /* used as block_t addresses */
+#define NEW_ADDR ((block_t)-1) /* used as block_t addresses */
#define F2FS_ROOT_INO(sbi) (sbi->root_ino_num)
#define F2FS_NODE_INO(sbi) (sbi->node_ino_num)