[drm-tip:drm-tip 1/7] drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:219:6: error: redefinition of 'dm_dp_mst_dc_sink_create'

[kbuild test robot]

tree:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
head:   16432d39f2cbdc7a8798df3ebb4f7c882fb23132
commit: a79b622ef5cad1b3a868a1d7250494e39bb04c05 [1/7] Merge remote-tracking branch 'airlied/drm-next' into drm-tip
config: i386-randconfig-b0-12302345 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        git checkout a79b622ef5cad1b3a868a1d7250494e39bb04c05
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the drm-tip/drm-tip HEAD 16432d39f2cbdc7a8798df3ebb4f7c882fb23132 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:219:6: error: redefinition of 'dm_dp_mst_dc_sink_create'
    void dm_dp_mst_dc_sink_create(struct drm_connector *connector)
         ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:183:6: note: previous definition of 'dm_dp_mst_dc_sink_create' was here
    void dm_dp_mst_dc_sink_create(struct drm_connector *connector)
         ^

vim +/dm_dp_mst_dc_sink_create +219 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c

54427651 Jerry Zuo           2017-09-20  218  
becd0875 Jerry (Fangzhi  Zuo 2017-12-01 @219) void dm_dp_mst_dc_sink_create(struct drm_connector *connector)
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  220) {
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  221) 	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  222) 	struct edid *edid;
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  223) 	struct dc_sink *dc_sink;
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  224) 	struct dc_sink_init_data init_params = {
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  225) 			.link = aconnector->dc_link,
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  226) 			.sink_signal = SIGNAL_TYPE_DISPLAY_PORT_MST };
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  227) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  228) 	edid = drm_dp_mst_get_edid(connector, &aconnector->mst_port->mst_mgr, aconnector->port);
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  229) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  230) 	if (!edid) {
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  231) 		drm_mode_connector_update_edid_property(
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  232) 			&aconnector->base,
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  233) 			NULL);
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  234) 		return;
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  235) 	}
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  236) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  237) 	aconnector->edid = edid;
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  238) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  239) 	dc_sink = dc_link_add_remote_sink(
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  240) 		aconnector->dc_link,
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  241) 		(uint8_t *)aconnector->edid,
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  242) 		(aconnector->edid->extensions + 1) * EDID_LENGTH,
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  243) 		&init_params);
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  244) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  245) 	dc_sink->priv = aconnector;
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  246) 	aconnector->dc_sink = dc_sink;
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  247) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  248) 	amdgpu_dm_add_sink_to_freesync_module(
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  249) 			connector, aconnector->edid);
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  250) 
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  251) 	drm_mode_connector_update_edid_property(
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  252) 					&aconnector->base, aconnector->edid);
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  253) }
becd0875 Jerry (Fangzhi  Zuo 2017-12-01  254) 

:::::: The code at line 219 was first introduced by commit
:::::: becd0875f4393a992afbf57aa323f7bf1a71c3ff drm/amd/display: Fix rehook MST display not light back on

:::::: TO: Jerry (Fangzhi) Zuo <Jerry.Zuo at amd.com>
:::::: CC: Alex Deucher <alexander.deucher at amd.com>

---
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