Linux C-SKY architecture development
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From: Hanlin Song <pgeorge8929@gmail.com>
To: guoren@kernel.org
Cc: Hanlin Song <pgeorge8929@gmail.com>,
	linux-csky@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] csky: Fix ABIv2 memcmp() s1 alignment check
Date: Mon,  6 Jul 2026 18:39:32 +0800	[thread overview]
Message-ID: <20260706103932.20961-1-pgeorge8929@gmail.com> (raw)
In-Reply-To: <20260623112438.33022-1-pgeorge8929@gmail.com>

Hi Guo Ren and C-SKY maintainers,

Gentle ping on this patch.

My understanding is that r3 holds the original s1 pointer after r0 is
cleared, so the alignment check should use r3 instead of r0. I also
tested this on a CK860f chip, and the patched version was faster in my
unaligned memcmp test.

I may be missing some C-SKY ABIv2 detail, so any feedback would be
appreciated.

Thanks,
Hanlin

  reply	other threads:[~2026-07-06 10:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-23 11:24 [PATCH] csky: Fix ABIv2 memcmp() s1 alignment check Hanlin Song
2026-07-06 10:39 ` Hanlin Song [this message]
2026-07-07  3:15   ` Guo Ren
2026-07-07  3:47     ` Hanlin Song

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