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Date:   Fri, 24 Mar 2023 17:50:08 +0800
From:   Herbert Xu <herbert@gondor.apana.org.au>
To:     Jia Jie Ho <jiajie.ho@starfivetech.com>
Cc:     "David S . Miller" <davem@davemloft.net>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Conor Dooley <conor.dooley@microchip.com>,
        linux-crypto@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: Re: [PATCH v3 4/4] crypto: starfive - Add hash and HMAC support
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On Fri, Mar 24, 2023 at 05:48:45PM +0800, Herbert Xu wrote:
>
> Please don't allocate the whole thing because it could be unlimited
> in size (and triggered from user-space by untrusted users too).
> 
> If you have to copy, then just allocate a single page and copy
> that, hash, and then repeat until it's all done.

Nevermind, your hardware doesn't support hashing piece-meal.

So just use the fallback if it's not aligned.

Cheers,
-- 
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