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author | Herbert Xu <herbert@gondor.apana.org.au> | 2019-12-08 13:42:52 +0800 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-12-11 16:48:39 +0800 |
commit | 96895693940710db24e42c4e2a248d8f7bd7ab4b (patch) | |
tree | 2afad097ca6a6e352aa4d934d53a727f016f7575 /drivers/crypto/padlock-sha.c | |
parent | fbce6be5aef5bad46f3af1650f7a62ec1b34318e (diff) | |
download | linux-96895693940710db24e42c4e2a248d8f7bd7ab4b.tar.gz linux-96895693940710db24e42c4e2a248d8f7bd7ab4b.tar.bz2 linux-96895693940710db24e42c4e2a248d8f7bd7ab4b.zip |
crypto: padlock-sha - Use init_tfm/exit_tfm interface
This patch switches padlock-sha over to the new init_tfm/exit_tfm
interface as opposed to cra_init/cra_exit. This way the shash API
can make sure that descsize does not exceed the maximum.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/padlock-sha.c')
-rw-r--r-- | drivers/crypto/padlock-sha.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c index ddf1b549fdca..c826abe79e79 100644 --- a/drivers/crypto/padlock-sha.c +++ b/drivers/crypto/padlock-sha.c @@ -190,13 +190,11 @@ static int padlock_sha256_final(struct shash_desc *desc, u8 *out) return padlock_sha256_finup(desc, buf, 0, out); } -static int padlock_cra_init(struct crypto_tfm *tfm) +static int padlock_init_tfm(struct crypto_shash *hash) { - struct crypto_shash *hash = __crypto_shash_cast(tfm); - const char *fallback_driver_name = crypto_tfm_alg_name(tfm); - struct padlock_sha_ctx *ctx = crypto_tfm_ctx(tfm); + const char *fallback_driver_name = crypto_shash_alg_name(hash); + struct padlock_sha_ctx *ctx = crypto_shash_ctx(hash); struct crypto_shash *fallback_tfm; - int err = -ENOMEM; /* Allocate a fallback and abort if it failed. */ fallback_tfm = crypto_alloc_shash(fallback_driver_name, 0, @@ -204,21 +202,17 @@ static int padlock_cra_init(struct crypto_tfm *tfm) if (IS_ERR(fallback_tfm)) { printk(KERN_WARNING PFX "Fallback driver '%s' could not be loaded!\n", fallback_driver_name); - err = PTR_ERR(fallback_tfm); - goto out; + return PTR_ERR(fallback_tfm); } ctx->fallback = fallback_tfm; hash->descsize += crypto_shash_descsize(fallback_tfm); return 0; - -out: - return err; } -static void padlock_cra_exit(struct crypto_tfm *tfm) +static void padlock_exit_tfm(struct crypto_shash *hash) { - struct padlock_sha_ctx *ctx = crypto_tfm_ctx(tfm); + struct padlock_sha_ctx *ctx = crypto_shash_ctx(hash); crypto_free_shash(ctx->fallback); } @@ -231,6 +225,8 @@ static struct shash_alg sha1_alg = { .final = padlock_sha1_final, .export = padlock_sha_export, .import = padlock_sha_import, + .init_tfm = padlock_init_tfm, + .exit_tfm = padlock_exit_tfm, .descsize = sizeof(struct padlock_sha_desc), .statesize = sizeof(struct sha1_state), .base = { @@ -241,8 +237,6 @@ static struct shash_alg sha1_alg = { .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct padlock_sha_ctx), .cra_module = THIS_MODULE, - .cra_init = padlock_cra_init, - .cra_exit = padlock_cra_exit, } }; @@ -254,6 +248,8 @@ static struct shash_alg sha256_alg = { .final = padlock_sha256_final, .export = padlock_sha_export, .import = padlock_sha_import, + .init_tfm = padlock_init_tfm, + .exit_tfm = padlock_exit_tfm, .descsize = sizeof(struct padlock_sha_desc), .statesize = sizeof(struct sha256_state), .base = { @@ -264,8 +260,6 @@ static struct shash_alg sha256_alg = { .cra_blocksize = SHA256_BLOCK_SIZE, .cra_ctxsize = sizeof(struct padlock_sha_ctx), .cra_module = THIS_MODULE, - .cra_init = padlock_cra_init, - .cra_exit = padlock_cra_exit, } }; |