[PATCH 2/2] drm/print: drop include seq_file.h

[Jani Nikula]

On Thu, 25 Apr 2024, Noralf Trønnes <noralf at tronnes.org> wrote:
> On 4/22/24 14:10, Jani Nikula wrote:
>> Never include where a forward declaration will suffice.
>> 
>> Reviewed-by: Andrzej Hajda <andrzej.hajda at intel.com>
>> Acked-by: Maxime Ripard <mripard at kernel.org>
>> Link: https://patchwork.freedesktop.org/patch/msgid/20240410141434.157908-2-jani.nikula@intel.com
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>> ---
>>  include/drm/drm_print.h | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
>> index 561c3b96b6fd..089950ad8681 100644
>> --- a/include/drm/drm_print.h
>> +++ b/include/drm/drm_print.h
>> @@ -28,7 +28,6 @@
>>  
>>  #include <linux/compiler.h>
>>  #include <linux/printk.h>
>> -#include <linux/seq_file.h>
>>  #include <linux/device.h>
>>  #include <linux/dynamic_debug.h>
>>  
>> @@ -36,6 +35,7 @@
>>  
>>  struct debugfs_regset32;
>>  struct drm_device;
>> +struct seq_file;
>>  
>>  /* Do *not* use outside of drm_print.[ch]! */
>>  extern unsigned long __drm_debug;
>
> Looks like this broke komeda and omapdrm on arm:
>
> /home/notro/develop/dim-linux/src/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c:
> In function ‘komeda_pipeline_dump_register’:
> /home/notro/develop/dim-linux/src/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c:366:9:
> error: implicit declaration of function ‘seq_printf’; did you mean
> ‘drm_printf’? [-Werror=implicit-function-declaration]
>   366 |         seq_printf(sf, "\n======== Pipeline-%d ==========\n",
> pipe->id);
>       |         ^~~~~~~~~~
>       |         drm_printf
>
> /home/notro/develop/dim-linux/src/drivers/gpu/drm/omapdrm/omap_fb.c: In
> function ‘omap_framebuffer_describe’:
> /home/notro/develop/dim-linux/src/drivers/gpu/drm/omapdrm/omap_fb.c:325:9:
> error: implicit declaration of function ‘seq_printf’; did you mean
> ‘drm_printf’? [-Werror=implicit-function-declaration]
>   325 |         seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height,
>       |         ^~~~~~~~~~
>       |         drm_printf
>
> Noralf.

Sad trombone. I built on arm and arm64, with omap and komeda enabled,
but apparently still missed some options. Sorry. :(

Dave fixed these when pulling drm-misc-next, so a backmerge from
drm-next to drm-misc-next should handle it.

Sorry again,
Jani.



-- 
Jani Nikula, Intel