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authorEric Biggers <ebiggers@google.com>2020-01-03 06:58:50 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2020-01-09 06:30:55 +0300
commit84a9c938e5063709f799fd6bab17a8ea723c2eb5 (patch)
tree7032db8296d5228b85aba8acf49d2621c4901ee2 /crypto
parentfdfad1fffc2aa199fb447c152a00a5e383a5b973 (diff)
downloadlinux-84a9c938e5063709f799fd6bab17a8ea723c2eb5.tar.xz
crypto: ahash - introduce crypto_grab_ahash()
Currently, ahash spawns are initialized by using ahash_attr_alg() or crypto_find_alg() to look up the ahash algorithm, then calling crypto_init_ahash_spawn(). This is different from how skcipher, aead, and akcipher spawns are initialized (they use crypto_grab_*()), and for no good reason. This difference introduces unnecessary complexity. The crypto_grab_*() functions used to have some problems, like not holding a reference to the algorithm and requiring the caller to initialize spawn->base.inst. But those problems are fixed now. So, let's introduce crypto_grab_ahash() so that we can convert all templates to the same way of initializing their spawns. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/ahash.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 181bd851b429..e98a1398ed7f 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -556,6 +556,15 @@ const struct crypto_type crypto_ahash_type = {
};
EXPORT_SYMBOL_GPL(crypto_ahash_type);
+int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
+{
+ spawn->base.frontend = &crypto_ahash_type;
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
+}
+EXPORT_SYMBOL_GPL(crypto_grab_ahash);
+
struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
u32 mask)
{