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authorStephen Rothwell <sfr@canb.auug.org.au>2012-01-12 09:17:30 +0100
committerJens Axboe <axboe@kernel.dk>2012-01-12 09:19:54 +0100
commitfd83240a60ecc59849420df3393e9e6d35c77683 (patch)
treed85ae1c6459d5d5c01db1617011db403929578b4 /include/linux/blkdev.h
parent0b4156eb27214e81f7012458bb15d1e038db9a00 (diff)
downloadvexpress-lsk-fd83240a60ecc59849420df3393e9e6d35c77683.tar.gz
blockdev: convert some macros to static inlines
We prefer to program in C rather than preprocessor and it fixes this warning when CONFIG_BLK_DEV_INTEGRITY is not set: drivers/md/dm-table.c: In function 'dm_table_set_integrity': drivers/md/dm-table.c:1285:3: warning: statement with no effect [-Wunused-value] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h77
1 files changed, 64 insertions, 13 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index adc34133a56..5cfb9b22627 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1298,19 +1298,70 @@ queue_max_integrity_segments(struct request_queue *q)
#else /* CONFIG_BLK_DEV_INTEGRITY */
-#define blk_integrity_rq(rq) (0)
-#define blk_rq_count_integrity_sg(a, b) (0)
-#define blk_rq_map_integrity_sg(a, b, c) (0)
-#define bdev_get_integrity(a) (0)
-#define blk_get_integrity(a) (0)
-#define blk_integrity_compare(a, b) (0)
-#define blk_integrity_register(a, b) (0)
-#define blk_integrity_unregister(a) do { } while (0)
-#define blk_queue_max_integrity_segments(a, b) do { } while (0)
-#define queue_max_integrity_segments(a) (0)
-#define blk_integrity_merge_rq(a, b, c) (0)
-#define blk_integrity_merge_bio(a, b, c) (0)
-#define blk_integrity_is_initialized(a) (0)
+struct bio;
+struct block_device;
+struct gendisk;
+struct blk_integrity;
+
+static inline int blk_integrity_rq(struct request *rq)
+{
+ return 0;
+}
+static inline int blk_rq_count_integrity_sg(struct request_queue *q,
+ struct bio *b)
+{
+ return 0;
+}
+static inline int blk_rq_map_integrity_sg(struct request_queue *q,
+ struct bio *b,
+ struct scatterlist *s)
+{
+ return 0;
+}
+static inline struct blk_integrity *bdev_get_integrity(struct block_device *b)
+{
+ return 0;
+}
+static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
+{
+ return NULL;
+}
+static inline int blk_integrity_compare(struct gendisk *a, struct gendisk *b)
+{
+ return 0;
+}
+static inline int blk_integrity_register(struct gendisk *d,
+ struct blk_integrity *b)
+{
+ return 0;
+}
+static inline void blk_integrity_unregister(struct gendisk *d)
+{
+}
+static inline void blk_queue_max_integrity_segments(struct request_queue *q,
+ unsigned int segs)
+{
+}
+static inline unsigned short queue_max_integrity_segments(struct request_queue *q)
+{
+ return 0;
+}
+static inline int blk_integrity_merge_rq(struct request_queue *rq,
+ struct request *r1,
+ struct request *r2)
+{
+ return 0;
+}
+static inline int blk_integrity_merge_bio(struct request_queue *rq,
+ struct request *r,
+ struct bio *b)
+{
+ return 0;
+}
+static inline bool blk_integrity_is_initialized(struct gendisk *g)
+{
+ return 0;
+}
#endif /* CONFIG_BLK_DEV_INTEGRITY */