[PATCH 00/53] drm: Convert to platform remove callback returning void

Tomi Valkeinen tomi.valkeinen at ideasonboard.com
Thu Jun 8 17:19:16 UTC 2023


On 08/06/2023 19:26, Laurent Pinchart wrote:
> Hi Doug,
> 
> On Thu, Jun 08, 2023 at 09:08:15AM -0700, Doug Anderson wrote:
>> On Thu, Jun 1, 2023 at 8:40 AM Uwe Kleine-König wrote:
>>> On Sun, May 07, 2023 at 06:25:23PM +0200, Uwe Kleine-König wrote:
>>>> this patch series adapts the platform drivers below drivers/gpu/drm
>>>> to use the .remove_new() callback. Compared to the traditional .remove()
>>>> callback .remove_new() returns no value. This is a good thing because
>>>> the driver core doesn't (and cannot) cope for errors during remove. The
>>>> only effect of a non-zero return value in .remove() is that the driver
>>>> core emits a warning. The device is removed anyhow and an early return
>>>> from .remove() usually yields a resource leak.
>>>>
>>>> By changing the remove callback to return void driver authors cannot
>>>> reasonably (but wrongly) assume any more that there happens some kind of
>>>> cleanup later.
>>>
>>> I wonder if someone would volunteer to add the whole series to
>>> drm-misc-next?!
>>
>> It looks as if Neil applied quite a few of them already, so I looked
>> at what was left...
>>
>> I'm a little hesitant to just apply the whole kit-and-caboodle to
>> drm-misc-next since there are specific DRM trees for a bunch of them
>> and it would be better if they landed there. ...so I went through all
>> the patches that still applied to drm-misc-next, then used
>> 'scripts/get_maintainer.pl --scm' to check if they were maintained
>> through drm-misc. That still left quite a few patches. I've applied
>> those ones and pushed to drm-misc-next:
>>
>> 71722685cd17 drm/xlnx/zynqmp_dpsub: Convert to platform remove
>> callback returning void
>> 1ed54a19f3b3 drm/vc4: Convert to platform remove callback returning void
>> b957812839f8 drm/v3d: Convert to platform remove callback returning void
>> e2fd3192e267 drm/tve200: Convert to platform remove callback returning void
>> 84e6da7ad553 drm/tiny: Convert to platform remove callback returning void
>> 34cdd1f691ad drm/tidss: Convert to platform remove callback returning void
>> d665e3c9d37a drm/sun4i: Convert to platform remove callback returning void
>> 0c259ab19146 drm/stm: Convert to platform remove callback returning void
>> 9a865e45884a drm/sti: Convert to platform remove callback returning void
>> 3c855610840e drm/rockchip: Convert to platform remove callback returning void
>> e41977a83b71 drm/panfrost: Convert to platform remove callback returning void
>> cef3776d0b5a drm/panel: Convert to platform remove callback returning void
>> bd296a594e87 drm/mxsfb: Convert to platform remove callback returning void
>> 38ca2d93d323 drm/meson: Convert to platform remove callback returning void
>> fd1457d84bae drm/mcde: Convert to platform remove callback returning void
>> 41a56a18615c drm/logicvc: Convert to platform remove callback returning void
>> 980ec6444372 drm/lima: Convert to platform remove callback returning void
>> 82a2c0cc1a22 drm/hisilicon: Convert to platform remove callback returning void
>> c3b28b29ac0a drm/fsl-dcu: Convert to platform remove callback returning void
>> a118fc6e71f9 drm/atmel-hlcdc: Convert to platform remove callback returning void
>> 9a32dd324c46 drm/aspeed: Convert to platform remove callback returning void
>> 2c7d291c498c drm/arm/malidp: Convert to platform remove callback returning void
>> a920028df679 drm/arm/hdlcd: Convert to platform remove callback returning void
>> 1bf3d76a7d15 drm/komeda: Convert to platform remove callback returning void
>>
>> The following ones appeared to apply to the top of drm-misc-next, but
>> I didn't apply them since get_maintainer didn't say they were part of
>> drm-misc-next:
>>
>> drm/tiny: Convert to platform remove callback returning void
>> drm/tilcdc: Convert to platform remove callback returning void
>> drm/sprd: Convert to platform remove callback returning void
>> drm/shmobile: Convert to platform remove callback returning void
>> drm/rcar-du: Convert to platform remove callback returning void
> 
> If you don't mind, could you take the rcar-du patch through drm-misc too
> ? I don't plan to send another pull request for v6.5.
> 
>> drm/omap: Convert to platform remove callback returning void
> 
> Tomi, should drm/omap moved to being maintained through drm-misc ?

Yes. tilcdc, tidss and omapdrm are all maintained through drm-misc. But 
I guess I need to add something to the MAINTAINERS to make this clear. 
I'll look at it.

  Tomi



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