Re: [PATCH 07/10] crypto: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN

Muchun Song
2022-04-07T06:14:32Z

On Tue, Apr 05, 2022 at 02:57:55PM +0100, Catalin Marinas wrote:
> ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
> operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
> alignment.
>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> ---
> include/linux/crypto.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/crypto.h b/include/linux/crypto.h
> index 2324ab6f1846..654b9c355575 100644
> --- a/include/linux/crypto.h
> +++ b/include/linux/crypto.h
> @@ -167,7 +167,7 @@
> * maintenance for non-coherent DMA (cache invalidation in particular) does not
> * affect data that may be accessed by the CPU concurrently.
> */
> -#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
> +#define CRYPTO_MINALIGN ARCH_DMA_MINALIGN
>

I don't think this should be changed since ARCH_KMALLOC_MINALIGN is
already aligned with the size what you need.

Thanks.