linux-kernel - Re: [PATCH 06/11] Create module providing optimized SHA256 routines using SSSE3, AVX or AVX2 instructions.

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Message-ID: <514F75BB.3080501@iki.fi>
Date:	Sun, 24 Mar 2013 23:52:59 +0200
From:	Jussi Kivilinna <jussi.kivilinna@....fi>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
CC:	Herbert Xu <herbert@...dor.apana.org.au>,
	"H. Peter Anvin" <hpa@...or.com>,
	"David S.Miller" <davem@...emloft.net>,
	Kirk Yap <kirk.s.yap@...el.com>,
	David Cote <david.m.cote@...el.com>,
	James Guilford <james.guilford@...el.com>,
	Wajdi Feghali <wajdi.k.feghali@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH 06/11] Create module providing optimized SHA256 routines
 using SSSE3, AVX or AVX2 instructions.

On 22.03.2013 23:29, Tim Chen wrote:
> We added glue code and config options to create crypto
> module that uses SSE/AVX/AVX2 optimized SHA256 x86_64 assembly routines.
> 
> Signed-off-by: Tim Chen <tim.c.chen@...ux.intel.com>

..snip..

> diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
> new file mode 100644
> index 0000000..5876a19
> --- /dev/null
> +++ b/arch/x86/crypto/sha256_ssse3_glue.c

..snip..

> +static int __init sha256_ssse3_mod_init(void)
> +{
> +	/* test for SSE3 first */
> +	if (cpu_has_xmm3)
> +		sha256_transform_asm = sha256_transform_ssse3;
> +

This causes OOPS on my computer. Maybe use 'cpu_has_ssse3' instead?

-Jussi
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