[PATCH 6.1 144/159] drm/plane-helper: Add the missing declaration of drm_atomic_state

[Greg Kroah-Hartman]

From: Ma Jun <majun at amd.com>

commit 4e699e34f923188175986ad8a74ab99f7034075e upstream.

Add the missing declaration of struct drm_atomic_state to fix the
compile error below:

error: 'struct drm_atomic_state' declared inside parameter
list will not be visible outside of this definition or declaration [-Werror]

Signed-off-by: Ma Jun <majun at amd.com>
Reviewed-by: Thomas Zimmermann <tzimmermann at suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Fixes: 8401bd361f59 ("drm/plane-helper: Add a drm_plane_helper_atomic_check() helper")
Cc: Javier Martinez Canillas <javierm at redhat.com>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Maxime Ripard <mripard at kernel.org>
Cc: David Airlie <airlied at gmail.com>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: dri-devel at lists.freedesktop.org
Cc: <stable at vger.kernel.org> # v6.1+
Link: https://patchwork.freedesktop.org/patch/msgid/20221216030526.1335609-1-majun@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 include/drm/drm_plane_helper.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index ff83d2621687..3a574e8cd22f 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -26,6 +26,7 @@
 
 #include <linux/types.h>
 
+struct drm_atomic_state;
 struct drm_crtc;
 struct drm_framebuffer;
 struct drm_modeset_acquire_ctx;
-- 
2.39.0