Re: [PATCH] drm: nouveau: fix build when LEDS_CLASS=m

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On Wed, Jan 04, 2017 at 02:24:51PM -0800, Randy Dunlap wrote:
> On 01/04/17 11:29, Jani Nikula wrote:
> > On Wed, 04 Jan 2017, Daniel Vetter <daniel@xxxxxxxx> wrote:
> >> On Sun, Jan 01, 2017 at 04:20:53PM -0800, Randy Dunlap wrote:
> >>> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> >>>
> >>> Fix build errors in nouveau driver when CONFIG_LEDS_CLASS=m and
> >>> CONFIG_DRM_NOUVEAU=y.
> >>> If LEDS_CLASS is enabled, DRM_NOUVEAU is restricted to the same
> >>> kconfig value as LEDS_CLASS.
> >>>
> >>> drivers/built-in.o: In function `nouveau_do_suspend':
> >>> nouveau_drm.c:(.text+0x2030b1): undefined reference to `nouveau_led_suspend'
> >>> drivers/built-in.o: In function `nouveau_do_resume':
> >>> nouveau_drm.c:(.text+0x2034ca): undefined reference to `nouveau_led_resume'
> >>> drivers/built-in.o: In function `nouveau_drm_unload':
> >>> nouveau_drm.c:(.text+0x203a15): undefined reference to `nouveau_led_fini'
> >>> drivers/built-in.o: In function `nouveau_drm_load':
> >>> nouveau_drm.c:(.text+0x204423): undefined reference to `nouveau_led_init'
> >>>
> >>> BTW, this line in Kbuild:
> >>> nouveau-$(CONFIG_LEDS_CLASS) += nouveau_led.o
> >>> does nothing when CONFIG_LEDS_CLASS=m and CONFIG_DRM_NOUVEAU=y.
> >>>
> >>> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> >>> Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
> >>> Cc: Martin Peres <martin.peres@xxxxxxx>
> >>> Cc: Ben Skeggs <bskeggs@xxxxxxxxxx>
> >>
> >> Thrown into drm-misc, thanks.
> > 
> > Randy, this results in the following recursive dependency using the
> > attached config.
> > 
> 
> Hi,
> Please drop the patch for now.  If there is an alternative patch,
> that's good.  Otherwise I'll look for a solution.

Ok, pushed a revert. I guess I'll stop touching Kconfig stuff again for
the next few months ;-)
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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