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authorThomas Zimmermann <tzimmermann@suse.de>2022-11-07 15:53:29 +0300
committerThomas Zimmermann <tzimmermann@suse.de>2022-11-08 18:16:22 +0300
commit260cd59a54ef5ad62d54172e2faf19ad28615cec (patch)
tree2ff915048a37d8412d09fb2d772a58afb5f06bab /include/drm/drm_fb_helper.h
parentd5c7533a461bb568d5cee6842b0826879216d220 (diff)
downloadlinux-260cd59a54ef5ad62d54172e2faf19ad28615cec.tar.xz
drm/fb-helper: Document struct drm_fb_helper.hint_leak_smem_start
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
Diffstat (limited to 'include/drm/drm_fb_helper.h')
-rw-r--r--include/drm/drm_fb_helper.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index ecfcd2c56d95..b111dc7ada78 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;
};