Since there's no struct to attach the docs to, document the IOCTL
definition.

Signed-off-by: Simon Ser <cont...@emersion.fr>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Pekka Paalanen <pekka.paala...@collabora.com>
Cc: Leandro Ribeiro <leandro.ribe...@collabora.com>
---
 include/uapi/drm/drm.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index e1f49dd241f7..283d61d5a243 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -1050,6 +1050,16 @@ extern "C" {
 #define DRM_IOCTL_MODE_GETPROPBLOB     DRM_IOWR(0xAC, struct drm_mode_get_blob)
 #define DRM_IOCTL_MODE_GETFB           DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
 #define DRM_IOCTL_MODE_ADDFB           DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
+/**
+ * DRM_IOCTL_MODE_RMFB - Remove a framebuffer.
+ *
+ * This removes a framebuffer previously added via ADDFB/ADDFB2. The IOCTL
+ * argument is a framebuffer object ID.
+ *
+ * Warning: removing a framebuffer currently in-use on an enabled plane will
+ * disable that plane. If the plane is primary, the CRTC may also be disabled
+ * (depending on driver capabilities).
+ */
 #define DRM_IOCTL_MODE_RMFB            DRM_IOWR(0xAF, unsigned int)
 #define DRM_IOCTL_MODE_PAGE_FLIP       DRM_IOWR(0xB0, struct 
drm_mode_crtc_page_flip)
 #define DRM_IOCTL_MODE_DIRTYFB         DRM_IOWR(0xB1, struct 
drm_mode_fb_dirty_cmd)
-- 
2.32.0


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