Re: [PATCH 1/2] crypto: caam: pass key buffers with typesafe pointers

From: Herbert Xu
Date: Thu Dec 01 2016 - 08:23:12 EST


On Wed, Nov 30, 2016 at 10:01:59PM +0100, Arnd Bergmann wrote:
> The 'key' field is defined as a 'u64' and used for two different
> pieces of information: either to store a pointer or a dma_addr_t.
> The former leads to a build error on 32-bit machines:
>
> drivers/crypto/caam/caamalg_desc.c: In function 'cnstr_shdsc_aead_null_encap':
> drivers/crypto/caam/caamalg_desc.c:67:27: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
> drivers/crypto/caam/caamalg_desc.c: In function 'cnstr_shdsc_aead_null_decap':
> drivers/crypto/caam/caamalg_desc.c:143:27: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
>
> Using a union to provide correct types gets rid of the warnings
> and as well as a couple of redundant casts.
>
> Fixes: db57656b0072 ("crypto: caam - group algorithm related params")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

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