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From: Herbert Xu <>
To: Ard Biesheuvel <>
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: <> (raw)
In-Reply-To: <>

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 <>

Patch applied.  Thanks.
Email: Herbert Xu <>
Home Page:
PGP Key:

      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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