linux-kernel - Re: drm_dp_mst_topology.c and old compilers

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Message-ID: <0d8dd389a5061f7e178d4e974001236ec33290e5.camel@perches.com>
Date:   Thu, 20 Feb 2020 03:59:51 -0800
From:   Joe Perches <joe@...ches.com>
To:     paulmck@...nel.org, maarten.lankhorst@...ux.intel.com,
        mripard@...nel.org, airlied@...ux.ie, daniel@...ll.ch
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: drm_dp_mst_topology.c and old compilers

On Wed, 2020-02-19 at 16:42 -0800, Paul E. McKenney wrote:
> Hello!
> 
> A box with GCC 4.8.3 compiler didn't like drm_dp_mst_topology.c.  The
> following (lightly tested) patch makes it happy and seems OK for newer
> compilers as well.
> 
> Is this of interest?
[]
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
[]
> @@ -5396,7 +5396,7 @@ 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 }}};

Perhaps this is simpler as:

	struct drm_dp_desc desc = {};