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drm/amdgpu: fix build for CONFIG_DRM_FBDEV_EMULATION=n 

The merge-commit 02e778f123 ("Merge tag 'amd-drm-next-7.1-2026-03-12' of
https://gitlab.freedesktop.org/agd5f/linux into drm-next") removes the stub
for drm_fb_helper_gem_is_fb(), so the buld gets broken if DRM_FBDEV_EMULATION
is not set.

‘drm_fb_helper_gem_is_fb’; did you mean ‘drm_fb_helper_from_client’? [-Wimplicit-function-declaration]
 1777 |                 if (!drm_fb_helper_gem_is_fb(dev->fb_helper, fb->obj[0])) {
      |                      ^~~~~~~~~~~~~~~~~~~~~~~
      |                      drm_fb_helper_from_client

Restore it.

Fixes: 02e778f123 ("Merge tag 'amd-drm-next-7.1-2026-03-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next")
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7b81bc38e92c2522484c42671401eaa023ae8831)
master
Yury Norov 2026-04-27 22:49:41 -04:00 committed by Alex Deucher
parent d0f5711fa1
commit 927011b65a
1 changed files with 6 additions and 0 deletions
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6
include/drm/drm_fb_helper.h
View File

@ -273,6 +273,12 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper);
bool drm_fb_helper_gem_is_fb(const struct drm_fb_helper *fb_helper,
const struct drm_gem_object *obj);
#else
static inline bool drm_fb_helper_gem_is_fb(const struct drm_fb_helper *fb_helper,
const struct drm_gem_object *obj)
{
return false;
}
#endif
#endif