On 4/22/24 14:10, Jani Nikula wrote: > Never include where a forward declaration will suffice. > > Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> > Acked-by: Maxime Ripard <mripard@xxxxxxxxxx> > Link: https://patchwork.freedesktop.org/patch/msgid/20240410141434.157908-2-jani.nikula@xxxxxxxxx > Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> > --- > 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.