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From: Herbert Xu <herbert@gondor.apana.org.au>
To: Stephan Mueller <smueller@chronox.de>
Cc: Daniel Borkmann <dborkman@redhat.com>,
	"'Quentin Gouchet'" <quentin.gouchet@gmail.com>,
	"'LKML'" <linux-kernel@vger.kernel.org>,
	linux-crypto@vger.kernel.org, linux-api@vger.kernel.org,
	Neil Horman <nhorman@tuxdriver.com>
Subject: Re: [PATCH v11 1/2] crypto: AF_ALG: add AEAD support
Date: Mon, 26 Jan 2015 10:55:50 +1100	[thread overview]
Message-ID: <20150125235550.GB18212@gondor.apana.org.au> (raw)
In-Reply-To: <6238416.vGUni1CI4i@tachyon.chronox.de>

On Wed, Jan 21, 2015 at 02:19:17AM +0100, Stephan Mueller wrote:
>
> +		/* use the existing memory in an allocated page */
> +		if (ctx->merge) {
> +			sg = sgl->sg + sgl->cur - 1;
> +			len = min_t(unsigned long, len,
> +				    PAGE_SIZE - sg->offset - sg->length);
> +			err = memcpy_from_msg(page_address(sg_page(sg)) +
> +					      sg->offset + sg->length,
> +					      msg, len);
> +			if (err)
> +				goto unlock;
> +
> +			sg->length += len;
> +			ctx->merge = (sg->offset + sg->length) &
> +				     (PAGE_SIZE - 1);
> +
> +			ctx->used += len;
> +			copied += len;
> +			size -= len;

Need to add a continue here to recheck size != 0.

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

  parent reply	other threads:[~2015-01-25 23:55 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-21  1:18 [PATCH v11 0/2] crypto: AF_ALG: add AEAD and RNG support Stephan Mueller
2015-01-21  1:19 ` [PATCH v11 1/2] crypto: AF_ALG: add AEAD support Stephan Mueller
2015-01-25 23:54   ` Herbert Xu
2015-01-25 23:55   ` Herbert Xu [this message]
2015-01-26  4:26     ` Stephan Mueller
2015-01-26  4:32       ` Herbert Xu
2015-01-26  4:39         ` Stephan Mueller
2015-01-26  4:41           ` Herbert Xu
2015-01-25 23:59   ` Herbert Xu
2015-01-26  0:06   ` Herbert Xu
2015-01-26  4:35     ` Stephan Mueller
2015-01-26  4:37       ` Herbert Xu
2015-01-26  4:40         ` Stephan Mueller
2015-01-21  1:19 ` [PATCH v11 2/2] crypto: AF_ALG: enable AEAD interface compilation Stephan Mueller

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