xfs: convert bmap extent type flags to unsigned.

5.18 w/ std=gnu11 compiled with gcc-5 wants flags stored in unsigned
fields to be unsigned.

Signed-off-by: Dave Chinner <[e-mail]>
Reviewed-by: Chandan Babu R <[e-mail]>
Signed-off-by: Dave Chinner <[e-mail]>

fs/xfs/libxfs/xfs_bmap.c

···
 	xfs_bmbt_irec_t		r[3];	/* neighbor extent entries */
 					/* left is 0, right is 1, prev is 2 */
 	int			rval=0;	/* return value (logging flags) */
-	int			state = xfs_bmap_fork_to_state(whichfork);
+	uint32_t		state = xfs_bmap_fork_to_state(whichfork);
 	xfs_filblks_t		da_new; /* new count del alloc blocks used */
 	xfs_filblks_t		da_old; /* old count del alloc blocks used */
 	xfs_filblks_t		temp=0;	/* value for da_new calculations */
···
 	xfs_bmbt_irec_t		r[3];	/* neighbor extent entries */
 					/* left is 0, right is 1, prev is 2 */
 	int			rval=0;	/* return value (logging flags) */
-	int			state = xfs_bmap_fork_to_state(whichfork);
+	uint32_t		state = xfs_bmap_fork_to_state(whichfork);
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_bmbt_irec	old;
 
···
 	xfs_filblks_t		newlen=0;	/* new indirect size */
 	xfs_filblks_t		oldlen=0;	/* old indirect size */
 	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
-	int			state = xfs_bmap_fork_to_state(whichfork);
+	uint32_t		state = xfs_bmap_fork_to_state(whichfork);
 	xfs_filblks_t		temp;	 /* temp for indirect calculations */
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
···
 	xfs_bmbt_irec_t		left;	/* left neighbor extent entry */
 	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
 	int			rval=0;	/* return value (logging flags) */
-	int			state = xfs_bmap_fork_to_state(whichfork);
+	uint32_t		state = xfs_bmap_fork_to_state(whichfork);
 	struct xfs_bmbt_irec	old;
 
 	ASSERT(!isnullstartblock(new->br_startblock));
···
 	int64_t			da_old, da_new, da_diff = 0;
 	xfs_fileoff_t		del_endoff, got_endoff;
 	xfs_filblks_t		got_indlen, new_indlen, stolen;
-	int			state = xfs_bmap_fork_to_state(whichfork);
+	uint32_t		state = xfs_bmap_fork_to_state(whichfork);
 	int			error = 0;
 	bool			isrt;
 
···
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 	struct xfs_bmbt_irec	new;
 	xfs_fileoff_t		del_endoff, got_endoff;
-	int			state = BMAP_COWFORK;
+	uint32_t		state = BMAP_COWFORK;
 
 	XFS_STATS_INC(mp, xs_del_exlist);
 
···
 	xfs_bmbt_irec_t		new;	/* new record to be inserted */
 	/* REFERENCED */
 	uint			qfield;	/* quota field to update */
-	int			state = xfs_bmap_fork_to_state(whichfork);
+	uint32_t		state = xfs_bmap_fork_to_state(whichfork);
 	struct xfs_bmbt_irec	old;
 
 	mp = ip->i_mount;

fs/xfs/libxfs/xfs_bmap.h

···
 /*
  * Flags for xfs_bmap_add_extent*.
  */
-#define BMAP_LEFT_CONTIG	(1 << 0)
-#define BMAP_RIGHT_CONTIG	(1 << 1)
-#define BMAP_LEFT_FILLING	(1 << 2)
-#define BMAP_RIGHT_FILLING	(1 << 3)
-#define BMAP_LEFT_DELAY		(1 << 4)
-#define BMAP_RIGHT_DELAY	(1 << 5)
-#define BMAP_LEFT_VALID		(1 << 6)
-#define BMAP_RIGHT_VALID	(1 << 7)
-#define BMAP_ATTRFORK		(1 << 8)
-#define BMAP_COWFORK		(1 << 9)
+#define BMAP_LEFT_CONTIG	(1u << 0)
+#define BMAP_RIGHT_CONTIG	(1u << 1)
+#define BMAP_LEFT_FILLING	(1u << 2)
+#define BMAP_RIGHT_FILLING	(1u << 3)
+#define BMAP_LEFT_DELAY		(1u << 4)
+#define BMAP_RIGHT_DELAY	(1u << 5)
+#define BMAP_LEFT_VALID		(1u << 6)
+#define BMAP_RIGHT_VALID	(1u << 7)
+#define BMAP_ATTRFORK		(1u << 8)
+#define BMAP_COWFORK		(1u << 9)
 
 #define XFS_BMAP_EXT_FLAGS \
 	{ BMAP_LEFT_CONTIG,	"LC" }, \
···
 void	xfs_bmap_unmap_extent(struct xfs_trans *tp, struct xfs_inode *ip,
 		struct xfs_bmbt_irec *imap);
 
-static inline int xfs_bmap_fork_to_state(int whichfork)
+static inline uint32_t xfs_bmap_fork_to_state(int whichfork)
 {
 	switch (whichfork) {
 	case XFS_ATTR_FORK: