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From: Herbert Xu <herbert@gondor.apana.org.au>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-crypto@vger.kernel.org, will.deacon@arm.com,
	yazen.ghannam@linaro.org, steve.capper@linaro.org, agraf@suse.de,
	mbrugger@suse.com
Subject: Re: [PATCH] crypto: arm64/crc32 - merge CRC32 and PMULL instruction based drivers
Date: Sat, 11 Feb 2017 18:51:02 +0800	[thread overview]
Message-ID: <20170211105102.GB855@gondor.apana.org.au> (raw)
In-Reply-To: <1485963340-25297-1-git-send-email-ard.biesheuvel@linaro.org>

On Wed, Feb 01, 2017 at 03:35:40PM +0000, Ard Biesheuvel wrote:
> The PMULL based CRC32 implementation already contains code based on the
> separate, optional CRC32 instructions to fallback to when operating on
> small quantities of data. We can expose these routines directly on systems
> that lack the 64x64 PMULL instructions but do implement the CRC32 ones,
> which makes the driver that is based solely on those CRC32 instructions
> redundant. So remove it.
> 
> Note that this aligns arm64 with ARM, whose accelerated CRC32 driver
> also combines the CRC32 extension based and the PMULL based versions.
> 
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Patch applied.  Thanks.
-- 
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:[~2017-02-11 19:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-01 15:35 Ard Biesheuvel
2017-02-02 16:47 ` Matthias Brugger
2017-02-11 10:51 ` Herbert Xu [this message]

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