From: Eric Biggers <ebiggers@xxxxxxxxxx>
bio_crypt_set_ctx(), blk_crypto_init_key(), and
blk_crypto_start_using_key() are needed to use inline encryption; see
Documentation/block/inline-encryption.rst. Export them so that
dm-inlinecrypt can use them. The only reason these weren't exported
before was that inline encryption was previously used only by fs/crypto/
which is built-in code.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
block/blk-crypto.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/blk-crypto.c b/block/blk-crypto.c
index 4d760b092deb9..5a121b1292f9a 100644
--- a/block/blk-crypto.c
+++ b/block/blk-crypto.c
@@ -104,10 +104,11 @@ void bio_crypt_set_ctx(struct bio *bio, const struct blk_crypto_key *key,
bc->bc_key = key;
memcpy(bc->bc_dun, dun, sizeof(bc->bc_dun));
bio->bi_crypt_context = bc;
}
+EXPORT_SYMBOL_GPL(bio_crypt_set_ctx);
void __bio_crypt_free_ctx(struct bio *bio)
{
mempool_free(bio->bi_crypt_context, bio_crypt_ctx_pool);
bio->bi_crypt_context = NULL;
@@ -354,10 +355,11 @@ int blk_crypto_init_key(struct blk_crypto_key *blk_key, const u8 *raw_key,
blk_key->size = mode->keysize;
memcpy(blk_key->raw, raw_key, mode->keysize);
return 0;
}
+EXPORT_SYMBOL_GPL(blk_crypto_init_key);
bool blk_crypto_config_supported_natively(struct block_device *bdev,
const struct blk_crypto_config *cfg)
{
return __blk_crypto_cfg_supported(bdev_get_queue(bdev)->crypto_profile,
@@ -396,10 +398,11 @@ int blk_crypto_start_using_key(struct block_device *bdev,
{
if (blk_crypto_config_supported_natively(bdev, &key->crypto_cfg))
return 0;
return blk_crypto_fallback_start_using_mode(key->crypto_cfg.crypto_mode);
}
+EXPORT_SYMBOL_GPL(blk_crypto_start_using_key);
/**
* blk_crypto_evict_key() - Evict a blk_crypto_key from a block_device
* @bdev: a block_device on which I/O using the key may have been done
* @key: the key to evict
--
2.47.0
