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 <[email protected]>

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 };

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/[email protected] Intel Corporation

Attachment: .config.gz
Description: application/gzip

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