Re: [PATCH v3 4/5] crypto: lib/sha256 - Unroll SHA256 loop 8 times intead of 64

From: Eric Biggers
Date: Fri Oct 23 2020 - 18:31:29 EST


On Fri, Oct 23, 2020 at 03:22:02PM -0400, Arvind Sankar wrote:
> This reduces code size substantially (on x86_64 with gcc-10 the size of
> sha256_update() goes from 7593 bytes to 1952 bytes including the new
> SHA256_K array), and on x86 is slightly faster than the full unroll
> (tested on Broadwell Xeon).
>
> Signed-off-by: Arvind Sankar <nivedita@xxxxxxxxxxxx>

Looks good,

Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx>