Commit 68b6c7d6 authored by Herbert Xu's avatar Herbert Xu

[CRYPTO] api: Add crypto_attr_alg_name

This patch adds a new helper crypto_attr_alg_name which is basically the
first half of crypto_attr_alg.  That is, it returns an algorithm name
parameter as a string without looking it up.  The caller can then look it
up immediately or defer it until later.
Signed-off-by: default avatarHerbert Xu <>
parent 551a09a7
......@@ -472,7 +472,7 @@ int crypto_check_attr_type(struct rtattr **tb, u32 type)
struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask)
const char *crypto_attr_alg_name(struct rtattr *rta)
struct crypto_attr_alg *alga;
......@@ -486,7 +486,21 @@ struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask)
alga = RTA_DATA(rta);
alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0;
return crypto_alg_mod_lookup(alga->name, type, mask);
return alga->name;
struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask)
const char *name;
int err;
name = crypto_attr_alg_name(rta);
err = PTR_ERR(name);
if (IS_ERR(name))
return ERR_PTR(err);
return crypto_alg_mod_lookup(name, type, mask);
......@@ -113,6 +113,7 @@ struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
int crypto_check_attr_type(struct rtattr **tb, u32 type);
const char *crypto_attr_alg_name(struct rtattr *rta);
struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask);
int crypto_attr_u32(struct rtattr *rta, u32 *num);
struct crypto_instance *crypto_alloc_instance(const char *name,
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment