linux-kernel - Re: [PATCH] lib/raid6: Add AVX2 optimized xor

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Message-ID: <18ad74b1-c027-c08a-e77d-989709c54710@linux.intel.com>
Date:   Thu, 6 Oct 2016 13:56:05 -0700
From:   "H. Peter Anvin" <hpa@...ux.intel.com>
To:     Shaohua Li <shli@...nel.org>,
        Gayatri Kammela <gayatri.kammela@...el.com>
Cc:     linux-raid@...r.kerenl.org, linux-kernel@...r.kernel.org,
        ravi.v.shankar@...el.com, Yuanhan Liu <yuanhan.liu@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>
Subject: Re: [PATCH] lib/raid6: Add AVX2 optimized xor_syndrome functions

On 10/05/16 16:11, Shaohua Li wrote:
> On Fri, Sep 30, 2016 at 11:14:49AM -0700, Gayatri Kammela wrote:
>> Implement the AVX2 optimization of RAID6 xor_syndrome functions which is
>> simply based on sse2.c written by hpa.
> 
> Applied, thanks! Could you please add xor_syndrome for sse1/mmx too?
> 

Not that it would be a bad thing to have, but do you think anyone
actually cares?  We are talking hardware over a decade old.

	-hpa