linux-kernel - Re: [v4 PATCH] crypto: stm32 - Save and restore between each request

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Message-ID: <CACRpkdYN-SDfxXKLt3HWGVkWb3V1rABwvWuytwDrzfTqm81fNA@mail.gmail.com>
Date:   Wed, 1 Mar 2023 13:22:13 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Lionel Debieve <lionel.debieve@...s.st.com>,
        Li kunyu <kunyu@...china.com>, davem@...emloft.net,
        linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com, mcoquelin.stm32@...il.com
Subject: Re: [v4 PATCH] crypto: stm32 - Save and restore between each request

On Wed, Mar 1, 2023 at 2:36 AM Herbert Xu <herbert@...dor.apana.org.au> wrote:

> The failing vector is the first one where we save the state from
> the hardware and then try to restore it.

Yeah that's typical :/

> Is your device ux500 or stm32? Perhaps state saving/restoring is
> simply broken on ux500 (as the original ux500 driver didn't support
> export/import and always used a fallback)?

It's Ux500 but I had no problem with import/export before,
and yeah it has state save/restore in HW.

Yours,
Linus Walleij