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bcache: Add __printf annotation to __bch_check_keys()

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Make it possible for the compiler to verify the consistency of the
format string passed to __bch_check_keys() and the arguments that
should be formatted according to that format string.

Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Michael Lyle <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Bart Van Assche 2018-03-18 17:36:27 -07:00 • committed by Jens Axboe
commit 4a4e443835
1 changed files with 3 additions and 2 deletions
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5
drivers/md/bcache/bset.h
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@ -531,14 +531,15 @@ int __bch_keylist_realloc(struct keylist *, unsigned);
#ifdef CONFIG_BCACHE_DEBUG
int __bch_count_data(struct btree_keys *);
void __bch_check_keys(struct btree_keys *, const char *, ...);
void __printf(2, 3) __bch_check_keys(struct btree_keys *, const char *, ...);
void bch_dump_bset(struct btree_keys *, struct bset *, unsigned);
void bch_dump_bucket(struct btree_keys *);
#else
static inline int __bch_count_data(struct btree_keys *b) { return -1; }
static inline void __bch_check_keys(struct btree_keys *b, const char *fmt, ...) {}
static inline void __printf(2, 3)
__bch_check_keys(struct btree_keys *b, const char *fmt, ...) {}
static inline void bch_dump_bucket(struct btree_keys *b) {}
void bch_dump_bset(struct btree_keys *, struct bset *, unsigned);