Re: [PATCH v4 1/3] crypto: introduce crypto_acomp_get_alg_flags to expose algorithm flags

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On Tue, Feb 20, 2024 at 03:55:43PM +1300, Barry Song wrote:
>
> diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c
> index c650c741a18d..94e2d66b04b6 100644
> --- a/drivers/crypto/hisilicon/zip/zip_crypto.c
> +++ b/drivers/crypto/hisilicon/zip/zip_crypto.c
> @@ -591,6 +591,7 @@ static struct acomp_alg hisi_zip_acomp_deflate = {
>  	.base			= {
>  		.cra_name		= "deflate",
>  		.cra_driver_name	= "hisi-deflate-acomp",
> +		.cra_flags		= CRYPTO_ALG_ASYNC,
>  		.cra_module		= THIS_MODULE,
>  		.cra_priority		= HZIP_ALG_PRIORITY,
>  		.cra_ctxsize		= sizeof(struct hisi_zip_ctx),
> diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/intel/iaa/iaa_crypto_main.c
> index dfd3baf0a8d8..91adf9d76a2e 100644
> --- a/drivers/crypto/intel/iaa/iaa_crypto_main.c
> +++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c
> @@ -1916,6 +1916,7 @@ static struct acomp_alg iaa_acomp_fixed_deflate = {
>  	.base			= {
>  		.cra_name		= "deflate",
>  		.cra_driver_name	= "deflate-iaa",
> +		.cra_flags		= CRYPTO_ALG_ASYNC,
>  		.cra_ctxsize		= sizeof(struct iaa_compression_ctx),
>  		.cra_module		= THIS_MODULE,
>  		.cra_priority		= IAA_ALG_PRIORITY,

Good catch.  I think this should go into a separate bug-fix patch.

> diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
> index 574cffc90730..07bd8f6bc79a 100644
> --- a/include/crypto/acompress.h
> +++ b/include/crypto/acompress.h
> @@ -160,6 +160,11 @@ static inline void acomp_request_set_tfm(struct acomp_req *req,
>  	req->base.tfm = crypto_acomp_tfm(tfm);
>  }
>  
> +static inline u32 crypto_acomp_get_alg_flags(struct crypto_acomp *tfm)
> +{
> +	return crypto_tfm_alg_flags(crypto_acomp_tfm(tfm));
> +}

Sorry, my mistake.  I shouldn't have suggested copying skcipher
since that gets the tfm flags as opposed to the alg flags which
you've found out.

I think you should just go with your original function acomp_is_async
but do it like this:

static inline bool acomp_is_async(struct crypto_acomp *tfm)
{
	return crypto_comp_alg_common(tfm)->base.cra_flags &
	       CRYPTO_ALG_ASYNC;
}

Thanks,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt




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