[v2] crypto: api - Add __crypto_alloc_tfmgfp
Commit Message
On Wed, Jun 14, 2023 at 06:46:42PM +0100, Dmitry Safonov wrote:
> Use it straight away in crypto_clone_cipher(), as that is not meant to
> sleep.
>
> Signed-off-by: Dmitry Safonov <dima@arista.com>
> ---
> crypto/algapi.c | 2 +-
> crypto/api.c | 6 +++---
> crypto/cipher.c | 2 +-
> crypto/internal.h | 2 +-
> 4 files changed, 6 insertions(+), 6 deletions(-)
Good catch. Though I'd rather add the gfp argument to a separate
function because I'm in the process of replacing ciphers with
something that uses the new crypto_types API.
Once that happens ciphers will switch over to the normal cloning
call and this can be removed.
---8<---
Use it straight away in crypto_clone_cipher(), as that is not meant to
sleep.
Fixes: 51d8d6d0f4be ("crypto: cipher - Add crypto_clone_cipher")
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Comments
On 6/15/23 10:00, Herbert Xu wrote:
[..]
>
> Good catch. Though I'd rather add the gfp argument to a separate
> function because I'm in the process of replacing ciphers with
> something that uses the new crypto_types API.
>
> Once that happens ciphers will switch over to the normal cloning
> call and this can be removed.
LGTM, thanks!
>
> ---8<---
> Use it straight away in crypto_clone_cipher(), as that is not meant to
> sleep.
>
> Fixes: 51d8d6d0f4be ("crypto: cipher - Add crypto_clone_cipher")
> Signed-off-by: Dmitry Safonov <dima@arista.com>
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
>
> diff --git a/crypto/api.c b/crypto/api.c
[..]
Thanks,
Dmitry
Hi Herbert,
On 6/15/23 17:19, Dmitry Safonov wrote:
> On 6/15/23 10:00, Herbert Xu wrote:
> [..]
>>
>> Good catch. Though I'd rather add the gfp argument to a separate
>> function because I'm in the process of replacing ciphers with
>> something that uses the new crypto_types API.
>>
>> Once that happens ciphers will switch over to the normal cloning
>> call and this can be removed.
>
> LGTM, thanks!
Would you prefer me to resend this v2 or you're happy to apply with your
proposed changes?
>> ---8<---
>> Use it straight away in crypto_clone_cipher(), as that is not meant to
>> sleep.
>>
>> Fixes: 51d8d6d0f4be ("crypto: cipher - Add crypto_clone_cipher")
>> Signed-off-by: Dmitry Safonov <dima@arista.com>
>> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
>>
>> diff --git a/crypto/api.c b/crypto/api.c
> [..]
Thanks,
Dmitry
@@ -395,15 +395,15 @@ void crypto_shoot_alg(struct crypto_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_shoot_alg);
-struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
- u32 mask)
+struct crypto_tfm *__crypto_alloc_tfmgfp(struct crypto_alg *alg, u32 type,
+ u32 mask, gfp_t gfp)
{
struct crypto_tfm *tfm = NULL;
unsigned int tfm_size;
int err = -ENOMEM;
tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, type, mask);
- tfm = kzalloc(tfm_size, GFP_KERNEL);
+ tfm = kzalloc(tfm_size, gfp);
if (tfm == NULL)
goto out_err;
@@ -430,6 +430,13 @@ struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
out:
return tfm;
}
+EXPORT_SYMBOL_GPL(__crypto_alloc_tfmgfp);
+
+struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
+ u32 mask)
+{
+ return __crypto_alloc_tfmgfp(alg, type, mask, GFP_KERNEL);
+}
EXPORT_SYMBOL_GPL(__crypto_alloc_tfm);
/*
@@ -101,8 +101,8 @@ struct crypto_cipher *crypto_clone_cipher(struct crypto_cipher *cipher)
if (alg->cra_init)
return ERR_PTR(-ENOSYS);
- ntfm = __crypto_alloc_tfm(alg, CRYPTO_ALG_TYPE_CIPHER,
- CRYPTO_ALG_TYPE_MASK);
+ ntfm = __crypto_alloc_tfmgfp(alg, CRYPTO_ALG_TYPE_CIPHER,
+ CRYPTO_ALG_TYPE_MASK, GFP_ATOMIC);
if (IS_ERR(ntfm))
return ERR_CAST(ntfm);
@@ -118,6 +118,8 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
struct crypto_alg *nalg);
void crypto_remove_final(struct list_head *list);
void crypto_shoot_alg(struct crypto_alg *alg);
+struct crypto_tfm *__crypto_alloc_tfmgfp(struct crypto_alg *alg, u32 type,
+ u32 mask, gfp_t gfp);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
u32 mask);
void *crypto_create_tfm_node(struct crypto_alg *alg,