Document the new field smem_start in struct drm_fb_helper and avoid
a compile-time warning. An error message is shown below and the bug
report is at [1].
include/drm/drm_fb_helper.h:204: warning: Function parameter or member 'hint_leak_smem_start' not described in 'drm_fb_helper'
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Fixes: e7c5c29a9eb1 ("drm/fb-helper: Set flag in struct drm_fb_helper for leaking physical addresses")
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Link: https://lore.kernel.org/dri-devel/20221107143858.0253a8ff@xxxxxxxxxxxxxxxx/T/#u # [1]
---
include/drm/drm_fb_helper.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index ecfcd2c56d95a..b111dc7ada78d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -200,6 +200,13 @@ struct drm_fb_helper {
*/
int preferred_bpp;
+ /**
+ * @hint_leak_smem_start:
+ *
+ * Hint to the fbdev emulation to store the framebuffer's physical
+ * address in struct &fb_info.fix.smem_start. If the hint is unset,
+ * the smem_start field should always be cleared to zero.
+ */
bool hint_leak_smem_start;
};
--
2.38.0
