linux-kernel - Re: [PATCH v4 00/20] Support more Amlogic SoC families in crypto driver

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Date: Wed, 28 Feb 2024 21:19:32 +0100
From: Corentin Labbe <clabbe.montjoie@...il.com>
To: Alexey Romanov <avromanov@...utedevices.com>
Cc: "neil.armstrong@...aro.org" <neil.armstrong@...aro.org>,
	"clabbe@...libre.com" <clabbe@...libre.com>,
	"herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
	"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>,
	"khilman@...libre.com" <khilman@...libre.com>,
	"jbrunet@...libre.com" <jbrunet@...libre.com>,
	"martin.blumenstingl@...glemail.com" <martin.blumenstingl@...glemail.com>,
	"vadim.fedorenko@...ux.dev" <vadim.fedorenko@...ux.dev>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"linux-amlogic@...ts.infradead.org" <linux-amlogic@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	kernel <kernel@...rdevices.ru>
Subject: Re: [PATCH v4 00/20] Support more Amlogic SoC families in crypto
 driver

Le Wed, Feb 28, 2024 at 01:37:02PM +0000, Alexey Romanov a écrit :
> Hello,
> 
> On Mon, Feb 19, 2024 at 07:57:27AM +0100, Corentin Labbe wrote:
> > Le Thu, Feb 15, 2024 at 10:47:24AM +0000, Alexey Romanov a 'ecrit :
> > > On Tue, Feb 13, 2024 at 08:21:12AM +0100, Corentin Labbe wrote:
> > > > Le Mon, Feb 12, 2024 at 04:50:48PM +0300, Alexey Romanov a 'ecrit :
> > > > > Hello!
> > > > > 
> > > > > This patchset expand the funcionality of the Amlogic
> > > > > crypto driver by adding support for more SoC families:
> > > > > AXG, G12A, G12B, SM1, A1, S4.
> > > > > 
> > > > > Also specify and enable crypto node in device tree
> > > > > for reference Amlogic devices.
> > > > > 
> > > > > Tested on AXG, G12A/B, SM1, A1 and S4 devices via
> > > > > custom tests [1] and tcrypt module.
> > > > > 
> > > > > ---
> > > > > 
> > > > 
> > > > added patchs up to  "drivers: crypto: meson: process more than MAXDESCS descriptors"
> > > 
> > > Including this patch or not?
> > 
> > The crash start with "drivers: crypto: meson: move algs definition and cipher API to cipher.c"
> 
> Unfortunately I was unable to reproduce this. I use Khadas Vim1 board
> and my custom tests (https://gist.github.com/mRrvz/3fb8943a7487ab7b943ec140706995e7).
> Tried both build as module and built-in.
> 
> Can you, please, give more information? Maybe your test cases?

My test case is simple, simply load the driver.

The problem is that you moved the algs[i].mc = mc after the register of algs (in drivers: crypto: meson: move algs definition and cipher API to cipher.c)
Test could happen as soon the register is done and so mc is deferenced.

Since you didnt hit the case, I suspect you didnt test the driver as module.

Regards