linux-kernel - Re: [PATCH v6 3/5] crypto: tegra: Add Tegra Security Engine driver

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Date: Tue, 2 Apr 2024 20:38:09 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Akhil R <akhilrajeev@...dia.com>
Cc: "davem@...emloft.net" <davem@...emloft.net>,
	"robh@...nel.org" <robh@...nel.org>,
	"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
	"conor+dt@...nel.org" <conor+dt@...nel.org>,
	"thierry.reding@...il.com" <thierry.reding@...il.com>,
	Jon Hunter <jonathanh@...dia.com>,
	"catalin.marinas@....com" <catalin.marinas@....com>,
	"will@...nel.org" <will@...nel.org>,
	Mikko Perttunen <mperttunen@...dia.com>,
	"airlied@...il.com" <airlied@...il.com>,
	"daniel@...ll.ch" <daniel@...ll.ch>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH v6 3/5] crypto: tegra: Add Tegra Security Engine driver

On Tue, Apr 02, 2024 at 12:36:41PM +0000, Akhil R wrote:
>
> Should I set the reqsize as below in sha_cra_init()? Seeing this in other crypto drivers.
> 
>         crypto_ahash_set_reqsize(ahash_tfm,
>                         sizeof(struct tegra_sha_reqctx) +
>                         crypto_ahash_reqsize(ctx->fallback_tfm));

Yes if you places the fallback request at the end of reqctx then
this is the correct reqsize.

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