diff options
| author | Svenning Sørensen <sss@secomea.com> | 2014-12-05 03:18:57 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-12-22 15:02:35 +0300 |
| commit | be95f0fa0cde56bb05ed62488a25a73a5b21b2d9 (patch) | |
| tree | 525fb22d9aa4d89f139c856a0a58ff83f375b652 /drivers/crypto/atmel-sha.c | |
| parent | 7e77bdebff5cb1e9876c561f69710b9ab8fa1f7e (diff) | |
| download | linux-be95f0fa0cde56bb05ed62488a25a73a5b21b2d9.tar.xz | |
crypto: atmel_sha - remove unused shash fallback instance.
The fallback is never used, so there is no point in having it.
The cra_exit routine can also be removed, since all it did was releasing
the fallback, along with the stub around cra_init, which just added an
unused NULL argument.
Signed-off-by: Svenning Soerensen <sss@secomea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/atmel-sha.c')
| -rw-r--r-- | drivers/crypto/atmel-sha.c | 50 |
1 files changed, 6 insertions, 44 deletions
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c index d94f07c78e19..34db04addc18 100644 --- a/drivers/crypto/atmel-sha.c +++ b/drivers/crypto/atmel-sha.c @@ -102,10 +102,6 @@ struct atmel_sha_ctx { struct atmel_sha_dev *dd; unsigned long flags; - - /* fallback stuff */ - struct crypto_shash *fallback; - }; #define ATMEL_SHA_QUEUE_LENGTH 50 @@ -974,19 +970,8 @@ static int atmel_sha_digest(struct ahash_request *req) return atmel_sha_init(req) ?: atmel_sha_finup(req); } -static int atmel_sha_cra_init_alg(struct crypto_tfm *tfm, const char *alg_base) +static int atmel_sha_cra_init(struct crypto_tfm *tfm) { - struct atmel_sha_ctx *tctx = crypto_tfm_ctx(tfm); - const char *alg_name = crypto_tfm_alg_name(tfm); - - /* Allocate a fallback and abort if it failed. */ - tctx->fallback = crypto_alloc_shash(alg_name, 0, - CRYPTO_ALG_NEED_FALLBACK); - if (IS_ERR(tctx->fallback)) { - pr_err("atmel-sha: fallback driver '%s' could not be loaded.\n", - alg_name); - return PTR_ERR(tctx->fallback); - } crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), sizeof(struct atmel_sha_reqctx) + SHA_BUFFER_LEN + SHA512_BLOCK_SIZE); @@ -994,19 +979,6 @@ static int atmel_sha_cra_init_alg(struct crypto_tfm *tfm, const char *alg_base) return 0; } -static int atmel_sha_cra_init(struct crypto_tfm *tfm) -{ - return atmel_sha_cra_init_alg(tfm, NULL); -} - -static void atmel_sha_cra_exit(struct crypto_tfm *tfm) -{ - struct atmel_sha_ctx *tctx = crypto_tfm_ctx(tfm); - - crypto_free_shash(tctx->fallback); - tctx->fallback = NULL; -} - static struct ahash_alg sha_1_256_algs[] = { { .init = atmel_sha_init, @@ -1020,14 +992,12 @@ static struct ahash_alg sha_1_256_algs[] = { .cra_name = "sha1", .cra_driver_name = "atmel-sha1", .cra_priority = 100, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, + .cra_flags = CRYPTO_ALG_ASYNC, .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct atmel_sha_ctx), .cra_alignmask = 0, .cra_module = THIS_MODULE, .cra_init = atmel_sha_cra_init, - .cra_exit = atmel_sha_cra_exit, } } }, @@ -1043,14 +1013,12 @@ static struct ahash_alg sha_1_256_algs[] = { .cra_name = "sha256", .cra_driver_name = "atmel-sha256", .cra_priority = 100, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, + .cra_flags = CRYPTO_ALG_ASYNC, .cra_blocksize = SHA256_BLOCK_SIZE, .cra_ctxsize = sizeof(struct atmel_sha_ctx), .cra_alignmask = 0, .cra_module = THIS_MODULE, .cra_init = atmel_sha_cra_init, - .cra_exit = atmel_sha_cra_exit, } } }, @@ -1068,14 +1036,12 @@ static struct ahash_alg sha_224_alg = { .cra_name = "sha224", .cra_driver_name = "atmel-sha224", .cra_priority = 100, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, + .cra_flags = CRYPTO_ALG_ASYNC, .cra_blocksize = SHA224_BLOCK_SIZE, .cra_ctxsize = sizeof(struct atmel_sha_ctx), .cra_alignmask = 0, .cra_module = THIS_MODULE, .cra_init = atmel_sha_cra_init, - .cra_exit = atmel_sha_cra_exit, } } }; @@ -1093,14 +1059,12 @@ static struct ahash_alg sha_384_512_algs[] = { .cra_name = "sha384", .cra_driver_name = "atmel-sha384", .cra_priority = 100, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, + .cra_flags = CRYPTO_ALG_ASYNC, .cra_blocksize = SHA384_BLOCK_SIZE, .cra_ctxsize = sizeof(struct atmel_sha_ctx), .cra_alignmask = 0x3, .cra_module = THIS_MODULE, .cra_init = atmel_sha_cra_init, - .cra_exit = atmel_sha_cra_exit, } } }, @@ -1116,14 +1080,12 @@ static struct ahash_alg sha_384_512_algs[] = { .cra_name = "sha512", .cra_driver_name = "atmel-sha512", .cra_priority = 100, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, + .cra_flags = CRYPTO_ALG_ASYNC, .cra_blocksize = SHA512_BLOCK_SIZE, .cra_ctxsize = sizeof(struct atmel_sha_ctx), .cra_alignmask = 0x3, .cra_module = THIS_MODULE, .cra_init = atmel_sha_cra_init, - .cra_exit = atmel_sha_cra_exit, } } }, |