1 files changed, 20 insertions, 3 deletions

diff --git a/crypto/algapi.c b/crypto/algapi.c
index d9559609b525..d891f56f0e8c 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -470,9 +470,8 @@ int crypto_check_attr_type(struct rtattr **tb, u32 type)
 }
 EXPORT_SYMBOL_GPL(crypto_check_attr_type);
 
-struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb, u32 type, u32 mask)
+struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask)
 {
-        struct rtattr *rta = tb[1];
         struct crypto_attr_alg *alga;
 
         if (!rta)
@@ -487,7 +486,25 @@ struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb, u32 type, u32 mask)
 
         return crypto_alg_mod_lookup(alga->name, type, mask);
 }
-EXPORT_SYMBOL_GPL(crypto_get_attr_alg);
+EXPORT_SYMBOL_GPL(crypto_attr_alg);
+
+int crypto_attr_u32(struct rtattr *rta, u32 *num)
+{
+        struct crypto_attr_u32 *nu32;
+
+        if (!rta)
+                return -ENOENT;
+        if (RTA_PAYLOAD(rta) < sizeof(*nu32))
+                return -EINVAL;
+        if (rta->rta_type != CRYPTOA_U32)
+                return -EINVAL;
+
+        nu32 = RTA_DATA(rta);
+        *num = nu32->num;
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(crypto_attr_u32);
 
 struct crypto_instance *crypto_alloc_instance(const char *name,
                                               struct crypto_alg *alg)