linux-kernel - Re: [PATCH] crypto: algif_skcipher: replace sg++ with sg

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Message-ID: <20160504040944.GA25781@gondor.apana.org.au>
Date:	Wed, 4 May 2016 12:09:44 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Muhammad Falak R Wani <falakreyaz@...il.com>
Cc:	davem@...emloft.net, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: algif_skcipher: replace sg++ with sg_next()

Muhammad Falak R Wani <falakreyaz@...il.com> wrote:
> Never use sg++, always use sg = sg_next(sg). Scatterlist entries can
> be combined if the memory is contiguous but sg++ won't know about
> that. It sure would run on the slower side.
> But regardless, sg++ should never be used, only sg_next is safe.
> 
> Signed-off-by: Muhammad Falak R Wani <falakreyaz@...il.com>

No please the only difference between sg_next and sg++ is chaining,
which is irrelevant here.

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