Hi Kuogee, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on next-20201113] [cannot apply to drm-intel/for-linux-next drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next drm-tip/drm-tip linus/master robclark/msm-next drm/drm-next v5.10-rc3 v5.10-rc2 v5.10-rc1 v5.10-rc3] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Kuogee-Hsieh/drm-msm-dp-fix-conn... base: 92edc4aef86780a8ad01b092c6d6630bb3cb423d config: arm64-randconfig-r012-20201113 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/7efd7b5dbf73b1ebafbcd74263b814e4b... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kuogee-Hsieh/drm-msm-dp-fix-connect-disconnect-handled-at-ir_hdp/20201114-062757 git checkout 7efd7b5dbf73b1ebafbcd74263b814e4b1db4f66 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/msm/dp/dp_display.c: In function 'dp_display_handle_irq_hpd': 452 | u32 sink_request; | ^~~~~~~~~~~~ vim +/sink_request +452 drivers/gpu/drm/msm/dp/dp_display.c c943b4948b5848f Chandan Uddaraju 2020-08-27 449 8ede2ecc3e5ee32 Kuogee Hsieh 2020-09-11 450 static int dp_display_handle_irq_hpd(struct dp_display_private *dp) c943b4948b5848f Chandan Uddaraju 2020-08-27 451 { 8ede2ecc3e5ee32 Kuogee Hsieh 2020-09-11 @452 u32 sink_request; 8ede2ecc3e5ee32 Kuogee Hsieh 2020-09-11 453 8ede2ecc3e5ee32 Kuogee Hsieh 2020-09-11 454 sink_request = dp->link->sink_request; c943b4948b5848f Chandan Uddaraju 2020-08-27 455 c943b4948b5848f Chandan Uddaraju 2020-08-27 456 dp_ctrl_handle_sink_request(dp->ctrl); c943b4948b5848f Chandan Uddaraju 2020-08-27 457 8ede2ecc3e5ee32 Kuogee Hsieh 2020-09-11 458 if (dp->link->sink_request & DP_TEST_LINK_VIDEO_PATTERN) c943b4948b5848f Chandan Uddaraju 2020-08-27 459 dp_display_handle_video_request(dp); c943b4948b5848f Chandan Uddaraju 2020-08-27 460 c943b4948b5848f Chandan Uddaraju 2020-08-27 461 return 0; c943b4948b5848f Chandan Uddaraju 2020-08-27 462 } c943b4948b5848f Chandan Uddaraju 2020-08-27 463 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org