drm_plane_helper_funcs are not supposed to change at runtime. All functions working with drm_plane_helper_funcs provided by <drm/drm_plane_helper.h> work with const drm_plane_helper_funcs. So mark the non-const structs as const.

File size before: text data bss dec hex filename 981 40 0 1021 3fd drivers/gpu/drm/sun4i/sun4i_layer.o

File size After adding 'const': text data bss dec hex filename 1021 0 0 1021 3fd drivers/gpu/drm/sun4i/sun4i_layer.o

Signed-off-by: Arvind Yadav arvind.yadav.cs@gmail.com --- drivers/gpu/drm/sun4i/sun4i_layer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c index f26bde5..6191aac 100644 --- a/drivers/gpu/drm/sun4i/sun4i_layer.c +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c @@ -52,7 +52,7 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane, sun4i_backend_layer_enable(backend, layer->id, true); }

-static struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = { +static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = { .atomic_check = sun4i_backend_layer_atomic_check, .atomic_disable = sun4i_backend_layer_atomic_disable, .atomic_update = sun4i_backend_layer_atomic_update,