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

Herbert Xu
2022-04-15T07:52:14Z

On Fri, Apr 15, 2022 at 09:49:12AM +0200, Ard Biesheuvel wrote:
>
> I'm not sure I understand what would go wrong if that assumption no
> longer holds.

It's very simple, we don't do anything to the pointer returned
by kmalloc before returning it as a tfm or other object with
an alignment of CRYPTO_MINALIGN. IOW if kmalloc starts returning
pointers that are not aligned to CRYPTO_MINALIGN then we'd be
lying to the compiler.

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