From: Ard Biesheuvel <ardb@kernel.org>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Eric Biggers <ebiggers@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] crypto - shash: reduce minimum alignment of shash_desc structure
Date: Fri, 8 Jan 2021 10:32:52 +0100 [thread overview]
Message-ID: <CAMj1kXG1pEon1EzNwnv64=u_9KZ1pqDRbx7Sqq6ck+s530C0vw@mail.gmail.com> (raw)
In-Reply-To: <20210108092246.GA13460@gondor.apana.org.au>
On Fri, 8 Jan 2021 at 10:23, Herbert Xu <herbert@gondor.apana.org.au> wrote:
>
> On Fri, Jan 08, 2021 at 09:36:23AM +0100, Ard Biesheuvel wrote:
> >
> > scatterlists, and I don't think we permit pointing the scatterlist
> > into request structures)
>
> Not only do we allow that, we do that in lots of places.
>
Fair enough. So changing CRYPTO_MINALIGN in general may trigger DMA
related bugs in non-coherent devices.
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next prev parent reply other threads:[~2021-01-08 9:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 12:41 [PATCH] crypto - shash: reduce minimum alignment of shash_desc structure Ard Biesheuvel
2021-01-07 19:02 ` Eric Biggers
2021-01-08 8:36 ` Ard Biesheuvel
2021-01-08 9:22 ` Herbert Xu
2021-01-08 9:32 ` Ard Biesheuvel [this message]
2021-01-08 10:42 ` Arnd Bergmann
2021-01-08 10:44 ` Herbert Xu
2021-01-08 10:59 ` Arnd Bergmann
2021-01-08 11:31 ` Ard Biesheuvel
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