Re: [PATCH] drm/i915/dp: Update connector status for DP MST hotplugs

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Hi Dhinakaran,

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on v4.9-rc3 next-20161028]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Dhinakaran-Pandiyan/drm-i915-dp-Update-connector-status-for-DP-MST-hotplugs/20161104-113409
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-x010-201644 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All error/warnings (new ones prefixed by >>):

   drivers/gpu/drm/i915/intel_dp_mst.c: In function 'intel_dp_mst_hotplug':
>> drivers/gpu/drm/i915/intel_dp_mst.c:509:4: error: 'changed' undeclared (first use in this function)
       changed = true;
       ^~~~~~~
   drivers/gpu/drm/i915/intel_dp_mst.c:509:4: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/gpu/drm/i915/intel_dp_mst.c:496:7: warning: unused variable 'change' [-Wunused-variable]
     bool change = false;
          ^~~~~~

vim +/changed +509 drivers/gpu/drm/i915/intel_dp_mst.c

   490	static void intel_dp_mst_hotplug(struct drm_dp_mst_topology_mgr *mgr)
   491	{
   492		struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
   493		struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
   494		struct drm_device *dev = intel_dig_port->base.base.dev;
   495		struct intel_connector *intel_connector;
 > 496		bool change = false;
   497		enum drm_connector_status old_status;
   498	
   499		for_each_intel_connector(dev, intel_connector) {
   500			struct drm_connector *connector = &(intel_connector->base);
   501	
   502			if (intel_connector->mst_port != intel_dp)
   503				continue;
   504	
   505			old_status = connector->status;
   506			connector->status = connector->funcs->detect(connector, false);
   507	
   508			if (old_status != connector->status)
 > 509				changed = true;
   510		}
   511	
   512		if (changed)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip

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