We get 2 warnings when building kernel with W=1: drivers/gpu/drm/arm/malidp_planes.c:49:25: warning: no previous prototype for 'malidp_duplicate_plane_state' [-Wmissing-prototypes] drivers/gpu/drm/arm/malidp_planes.c:66:6: warning: no previous prototype for 'malidp_destroy_plane_state' [-Wmissing-prototypes]
In fact, both functions are only used in the file in which they are declared and don't need a declaration, but can be made static. So this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie baoyou.xie@linaro.org --- drivers/gpu/drm/arm/malidp_planes.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index 82c193e..5339e87 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -46,7 +46,8 @@ static void malidp_de_plane_destroy(struct drm_plane *plane) devm_kfree(plane->dev->dev, mp); }
-struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane) +static struct +drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane) { struct malidp_plane_state *state, *m_state;
@@ -63,7 +64,7 @@ struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane) return &state->base; }
-void malidp_destroy_plane_state(struct drm_plane *plane, +static void malidp_destroy_plane_state(struct drm_plane *plane, struct drm_plane_state *state) { struct malidp_plane_state *m_state = to_malidp_plane_state(state);