tree: git://people.freedesktop.org/~agd5f/linux.git drm-next head: d7c4470150516c55928b494601a4b9bbc5d4352d commit: e630edd889c75a9782023288d5d0d3d6990130c4 [233/256] drm/dp_mst: Add new quirk for Synaptics MST hubs config: x86_64-randconfig-s0-20200109 (attached as .config) compiler: gcc-4.9 (Debian 4.9.2-10+deb8u1) 4.9.2 reproduce: git checkout e630edd889c75a9782023288d5d0d3d6990130c4 # save the attached .config to linux build tree make ARCH=x86_64

If you fix the issue, kindly add following tag Reported-by: kbuild test robot lkp@intel.com

All warnings (new ones prefixed by >>):

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:5151:9: warning: missing braces around initializer [-Wmissing-braces]

struct drm_dp_desc desc = { 0 }; ^ drivers/gpu/drm/drm_dp_mst_topology.c:5151:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces]

vim +5151 drivers/gpu/drm/drm_dp_mst_topology.c

5130 5131 /** 5132 * drm_dp_mst_dsc_aux_for_port() - Find the correct aux for DSC 5133 * @port: The port to check. A leaf of the MST tree with an attached display. 5134 * 5135 * Depending on the situation, DSC may be enabled via the endpoint aux, 5136 * the immediately upstream aux, or the connector's physical aux. 5137 * 5138 * This is both the correct aux to read DSC_CAPABILITY and the 5139 * correct aux to write DSC_ENABLED. 5140 * 5141 * This operation can be expensive (up to four aux reads), so 5142 * the caller should cache the return. 5143 * 5144 * Returns: 5145 * NULL if DSC cannot be enabled on this port, otherwise the aux device 5146 */ 5147 struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port) 5148 { 5149 struct drm_dp_mst_port *immediate_upstream_port; 5150 struct drm_dp_mst_port *fec_port;

5151 struct drm_dp_desc desc = { 0 };

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