On Mon, Apr 13, 2020 at 5:29 AM Tang Bin <tang...@cmss.chinamobile.com> wrote:
>
> The struct drm_dp_desc contains struct drm_dp_dpcd_ident, and the struct
> drm_dp_dpcd_ident contains the array, so zero-initialization requires a
> more couple of braces. In the ARM compiler environment, the compile
> warning pointing it out:
> drivers/gpu/drm/drm_dp_mst_topology.c: In function
> 'drm_dp_mst_dsc_aux_for_port':
> drivers/gpu/drm/drm_dp_mst_topology.c:5494:9: warning: missing braces
> around initializer [-Wmissing-braces]
> struct drm_dp_desc desc = { 0 };
>
This seems to vary based on compilers. Maybe a memset would be better.
Alex
> Signed-off-by: Tang Bin <tang...@cmss.chinamobile.com>
> Signed-off-by: Shengju Zhang <zhangshen...@cmss.chinamobile.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 70c4b7a..4d8d1fd 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -5494,7 +5494,7 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct
> drm_dp_mst_port *port)
> {
> struct drm_dp_mst_port *immediate_upstream_port;
> struct drm_dp_mst_port *fec_port;
> - struct drm_dp_desc desc = { 0 };
> + struct drm_dp_desc desc = { { { 0 } } };
> u8 endpoint_fec;
> u8 endpoint_dsc;
>
> --
> 2.7.4
>
>
>
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