linux-kernel - Re: [PATCH 03/13] crypto: x86/sha - yield FPU context during long loops

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Message-ID: <Y8DD8s9nakxW5zzE@gondor.apana.org.au>
Date:   Fri, 13 Jan 2023 10:37:38 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     Robert Elliott <elliott@....com>, davem@...emloft.net,
        Jason@...c4.com, ardb@...nel.org, ap420073@...il.com,
        David.Laight@...lab.com, tim.c.chen@...ux.intel.com,
        peter@...jl.ca, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, linux-crypto@...r.kernel.org,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/13] crypto: x86/sha - yield FPU context during long
 loops

On Fri, Jan 13, 2023 at 10:36:08AM +0800, Herbert Xu wrote:
>
> Perhaps we should just convert any users that trigger these warnings
> over to ahash? The shash interface was never meant to process large
> amounts of data anyway.

We could even add some length checks in shash to ensure that
all large updates fail with a big bright warning once the existing
users have been converted.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt