linux-kernel - Re: [PATCH 0/2] drivers: base: Add tests showing devm handling inconsistencies

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Message-ID: <2023053137-leggings-grumbly-a33a@gregkh>
Date:   Wed, 31 May 2023 20:20:13 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        David Gow <davidgow@...gle.com>,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] drivers: base: Add tests showing devm handling
 inconsistencies

On Mon, Apr 17, 2023 at 06:12:26PM +0200, Maxime Ripard wrote:
> Hi,
> 
> On Wed, Mar 29, 2023 at 08:38:30PM +0100, Maxime Ripard wrote:
> > Hi,
> > 
> > This follows the discussion here:
> > https://lore.kernel.org/linux-kselftest/20230324123157.bbwvfq4gsxnlnfwb@houat/
> > 
> > This shows a couple of inconsistencies with regard to how device-managed
> > resources are cleaned up. Basically, devm resources will only be cleaned up
> > if the device is attached to a bus and bound to a driver. Failing any of
> > these cases, a call to device_unregister will not end up in the devm
> > resources being released.
> > 
> > We had to work around it in DRM to provide helpers to create a device for
> > kunit tests, but the current discussion around creating similar, generic,
> > helpers for kunit resumed interest in fixing this.
> > 
> > This can be tested using the command:
> > ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/base/test/
> > 
> > Let me know what you think,
> > Maxime
> > 
> > Signed-off-by: Maxime Ripard <maxime@...no.tech>
> 
> Is there any news on this?

Can you resend, last I saw the kernel test robot had a problem, which
causes any patch series like that to be ignored by me.

thanks,

greg k-h