lkml.org 
[lkml]   [2023]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] crypto: arm64/sm4-ccm - Rewrite skcipher walker loop
On Wed, Feb 01, 2023 at 08:32:07PM +0800, Tianjia Zhang wrote:
> The fact that an error in the skcipher walker API are indicated
> not only by a non-zero return value, but also by the fact that
> walk->nbytes is zero, causes the layout of the skcipher walker
> loop to be sufficiently different from the usual layout, which
> is not a problem in itself, but it is likely to cause reading
> confusion and difficulty in code maintenance.
>
> This patch rewrites skcipher walker loop, and separates the
> last chunk cryption from the loop to avoid wrong calls to the
> skcipher walker API. In addition to following the usual convention
> of checking walk->nbytes, it also makes the loop execute logic
> clearer and easier to understand.
>
> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
> ---
> arch/arm64/crypto/sm4-ce-ccm-glue.c | 44 ++++++++++++++++-------------
> 1 file changed, 24 insertions(+), 20 deletions(-)

Patch applied. Thanks.
--
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

\
 
 \ /
  Last update: 2023-03-27 00:17    [W:0.040 / U:4.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site