linux-kernel - RE: [PATCH v4 3/5] crypto: tegra: Add Tegra Security Engine driver

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Date: Tue, 6 Feb 2024 05:58:39 +0000
From: Akhil R <akhilrajeev@...dia.com>
To: Herbert Xu <herbert@...dor.apana.org.au>
CC: "davem@...emloft.net" <davem@...emloft.net>, "robh+dt@...nel.org"
	<robh+dt@...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>,
	Jonathan Hunter <jonathanh@...dia.com>, "catalin.marinas@....com"
	<catalin.marinas@....com>, "will@...nel.org" <will@...nel.org>, Mikko
 Perttunen <mperttunen@...dia.com>, "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>, "krzk@...nel.org" <krzk@...nel.org>
Subject: RE: [PATCH v4 3/5] crypto: tegra: Add Tegra Security Engine driver

> On Tue, Feb 06, 2024 at 05:50:33AM +0000, Akhil R wrote:
> >
> > Understood the issue. But I feel it will be a bit overburden for the update()
> > to copy/paste these for every call. Let me explore more on the hardware and
> > come back with a better approach.
> 
> Of course it's a burden to copy it in and out on every update,
> that is why we generally use digest and finup instead of update.
> 
> As a driver you don't need to worry about this cost.
> 

Hmm. Makes sense. Thanks. Will update and post a new version.

Regards,
Akhil