diff --git a/crypto/ctr.c b/crypto/ctr.c index ae8d88c715d6..c39fcffba27f 100644 --- a/crypto/ctr.c +++ b/crypto/ctr.c @@ -265,8 +265,6 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl, err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_SKCIPHER, &mask); if (err) return err; - mask |= crypto_requires_off(crypto_get_attr_type(tb), - CRYPTO_ALG_NEED_FALLBACK); inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL); if (!inst) diff --git a/crypto/skcipher.c b/crypto/skcipher.c index 3b93a74ad124..467af525848a 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -943,8 +943,6 @@ struct skcipher_instance *skcipher_alloc_instance_simple( err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_SKCIPHER, &mask); if (err) return ERR_PTR(err); - mask |= crypto_requires_off(crypto_get_attr_type(tb), - CRYPTO_ALG_NEED_FALLBACK); inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL); if (!inst) diff --git a/crypto/xts.c b/crypto/xts.c index 35a30610569b..9a7adab6c3e1 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -340,8 +340,6 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb) err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_SKCIPHER, &mask); if (err) return err; - mask |= crypto_requires_off(crypto_get_attr_type(tb), - CRYPTO_ALG_NEED_FALLBACK); cipher_name = crypto_attr_alg_name(tb[1]); if (IS_ERR(cipher_name)) diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index da64c37482b4..22cf4d80959f 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -245,7 +245,8 @@ static inline u32 crypto_requires_off(struct crypto_attr_type *algt, u32 off) * template), these are the flags that should always be set on the "outer" * algorithm if any "inner" algorithm has them set. */ -#define CRYPTO_ALG_INHERITED_FLAGS CRYPTO_ALG_ASYNC +#define CRYPTO_ALG_INHERITED_FLAGS \ + (CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK) /* * Given the type and mask that specify the flags restrictions on a template diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 7cd2d00f0a05..f73f0b51e1cd 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -60,8 +60,8 @@ #define CRYPTO_ALG_ASYNC 0x00000080 /* - * Set this bit if and only if the algorithm requires another algorithm of - * the same type to handle corner cases. + * Set if the algorithm (or an algorithm which it uses) requires another + * algorithm of the same type to handle corner cases. */ #define CRYPTO_ALG_NEED_FALLBACK 0x00000100