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
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