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

[Greg Kroah-Hartman]

On Fri, Jun 02, 2023 at 05:27:05PM +0200, Maxime Ripard wrote:
> On Wed, May 31, 2023 at 08:20:13PM +0100, Greg Kroah-Hartman wrote:
> > 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@xxxxxxxxxx>
> > > 
> > > 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.
> 
> Yeah, this was due to .kunitconfig being ignored by .gitignore, which
> triggers a warning for the bot.
> 
> It's now fixed (at least in next), and I just resent the patches

Still triggered the bot :(