[PATCH 49/53] drm/vmwgfx/vmwgfx_blit: Add description for 'vmw_bo_cpu_blit's 'diff' param

[Lee Jones]

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/vmwgfx/vmwgfx_blit.c:452: warning: Function parameter or member 'diff' not described in 'vmw_bo_cpu_blit'

Cc: VMware Graphics <linux-graphics-maintainer@xxxxxxxxxx>
Cc: Roland Scheidegger <sroland@xxxxxxxxxx>
Cc: Zack Rusin <zackr@xxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Zack Rusin <zackr@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115181601.3432599-8-lee.jones@xxxxxxxxxx
---
 drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
index 9f2779ddcf083..118db24eb756c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
@@ -431,6 +431,7 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d,
  * @src_stride: Source stride in bytes.
  * @w: Width of blit.
  * @h: Height of blit.
+ * @diff: The struct vmw_diff_cpy used to track the modified bounding box.
  * return: Zero on success. Negative error value on failure. Will print out
  * kernel warnings on caller bugs.
  *
-- 
2.27.0