diff options
| author | Christoph Hellwig <hch@lst.de> | 2026-01-09 07:07:43 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-01-11 12:55:41 -0700 |
| commit | a3cc978e61f5c909ca94a38d2daeeddc051a18e0 (patch) | |
| tree | be24e0434dab96b39df23660b39a1286e9580216 /include/linux | |
| parent | bc26e2efa2c5bb9289fa894834446840dea0bc31 (diff) | |
blk-crypto: add a bio_crypt_ctx() helper
This returns the bio_crypt_ctx if CONFIG_BLK_INLINE_ENCRYPTION is enabled
and a crypto context is attached to the bio, else NULL.
The use case is to allow safely dereferencing the context in common code
without needed #ifdef CONFIG_BLK_INLINE_ENCRYPTION.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/blk-crypto.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h index 58b0c5254a67..eb80df19be68 100644 --- a/include/linux/blk-crypto.h +++ b/include/linux/blk-crypto.h @@ -132,6 +132,11 @@ static inline bool bio_has_crypt_ctx(struct bio *bio) return bio->bi_crypt_context; } +static inline struct bio_crypt_ctx *bio_crypt_ctx(struct bio *bio) +{ + return bio->bi_crypt_context; +} + void bio_crypt_set_ctx(struct bio *bio, const struct blk_crypto_key *key, const u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE], gfp_t gfp_mask); @@ -169,6 +174,11 @@ static inline bool bio_has_crypt_ctx(struct bio *bio) return false; } +static inline struct bio_crypt_ctx *bio_crypt_ctx(struct bio *bio) +{ + return NULL; +} + #endif /* CONFIG_BLK_INLINE_ENCRYPTION */ int __bio_crypt_clone(struct bio *dst, struct bio *src, gfp_t gfp_mask); |