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drm/fb-helper: Document struct drm_fb_helper.hint_leak_smem_start

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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@canb.auug.org.au>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: e7c5c29a9eb1 ("drm/fb-helper: Set flag in struct drm_fb_helper for leaking physical addresses")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Link: https://lore.kernel.org/dri-devel/20221107143858.0253a8ff@canb.auug.org.au/T/#u # [1]
Link: https://patchwork.freedesktop.org/patch/msgid/20221107125329.12842-4-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2022-11-07 13:53:29 +01:00
parent d5c7533a46
commit 260cd59a54
1 changed files with 7 additions and 0 deletions
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7
include/drm/drm_fb_helper.h
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@ -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;
};