On Thu, Sep 04, 2025 at 01:26:15PM +0200, meenakshi.aggarwal@xxxxxxx wrote:
> From: Meenakshi Aggarwal <nxa07556@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
>
> Add CRYPTO_ALG_NO_FALLBACK cra_flag for hash algorithms.
>
> Fixes: 4ccd065a69df ("crypto: ahash - Add support for drivers with no fallback")
>
> Signed-off-by: Meenakshi Aggarwal <nxa07556@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/crypto/caam/caamhash.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
> index 25c02e267258..90aecefdce01 100644
> --- a/drivers/crypto/caam/caamhash.c
> +++ b/drivers/crypto/caam/caamhash.c
> @@ -1933,7 +1933,8 @@ caam_hash_alloc(struct caam_hash_template *template,
> alg->cra_priority = CAAM_CRA_PRIORITY;
> alg->cra_blocksize = template->blocksize;
> alg->cra_alignmask = 0;
> - alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY;
> + alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
> + CRYPTO_ALG_NO_FALLBACK;
All hardware drivers are meant to have fallbacks. The only exception
would be phmac where the key is inaccessible to the software fallback.
Cheers,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
