On Mon, Jun 17, 2019 at 4:41 PM Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
> On Mon, Jun 17, 2019 at 02:38:55PM +0200, Arnd Bergmann wrote:
> > Some randconfig builds fail to compile the dcn10 code because of
> > a missing declaration:
> >
> > drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c: In function 'dcn10_apply_ctx_for_surface':
> > drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:2378:3: error: implicit declaration of function 'udelay' [-Werror=implicit-function-declaration]
> >
> > Include the appropriate kernel header.
> >
> > Fixes: 9ed43ef84d9d ("drm/amd/display: Add Underflow Asserts to dc")
> > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> > ---
> > drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> > index 1ac9a4f03990..d87ddc7de9c6 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> > @@ -22,6 +22,7 @@
> > * Authors: AMD
> > *
> > */
> > +#include <linux/delay.h>
> >
> > #include <linux/delay.h>
> > #include "dm_services.h"
>
> Something has gone wrong here, as you add a second include of linux/delay.h.
>
> We had this problem before, which Alex fixed by applying a patch to
> include linux/delay.h
My mistake, sorry about that. I had written and tested the patch on
last week's linux-next ernel and sent it out today after rebasing it, but did
not closely look at the resulting patch after the rebase.
Arnd
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