Re: [PATCH] drm/fbdev-helper: Fix deletion of stub for drm_fb_helper_gem_is_fb()

[Dmitry Ilvokhin]

On Fri, May 01, 2026 at 04:43:13PM -0400, mike.marciniszyn@xxxxxxxxx wrote:
> From: Mike Marciniszyn <mmarcini@xxxxxxxx>
> 
> When CONFIG_DRM_FBDEV_EMULATION  is not defined this error results
> when building amdgpu_display.c with CONFIG_DRM_AMDGPU:
> 
> error: call to undeclared function 'drm_fb_helper_gem_is_fb'; ISO C99 and
> later do not support implicit function
> declarations [-Wimplicit-function-declaration]
> 
>  1777 |  if (!drm_fb_helper_gem_is_fb(dev->fb_helper, fb->obj[0])) {
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Mike Marciniszyn <mmarcini@xxxxxxxx>

Just hit the same problem, thanks for the fix.

Reviewed-by: Dmitry Ilvokhin <d@xxxxxxxxxxxx>