Hi maitreye,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.13 next-20210709] [cannot apply to drm/drm-next] [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/maitreye/drm-msm-dp-add-logs-across... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: arm-randconfig-r005-20210709 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d69635ed9ecf36fd0ca85906bfde17949671cbe) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/4600296e3781e89ddd188cadf6f62b587a8f... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review maitreye/drm-msm-dp-add-logs-across-DP-driver-for-ease-of-debugging/20210709-031606 git checkout 4600296e3781e89ddd188cadf6f62b587a8f4eb9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com
All warnings (new ones prefixed by >>):
drivers/gpu/drm/msm/dp/dp_display.c:499:36: warning: variable 'sink_request' is uninitialized when used here [-Wuninitialized]
DRM_DEBUG_DP("sink_request:%d\n", sink_request); ^~~~~~~~~~~~ include/drm/drm_print.h:525:31: note: expanded from macro 'DRM_DEBUG_DP' __drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS__) ^~~~~~~~~~~ drivers/gpu/drm/msm/dp/dp_display.c:492:18: note: initialize the variable 'sink_request' to silence this warning u32 sink_request; ^ = 0 drivers/gpu/drm/msm/dp/dp_display.c:1030:21: warning: variable 'drm' set but not used [-Wunused-but-set-variable] struct drm_device *drm; ^ 2 warnings generated.
vim +/sink_request +499 drivers/gpu/drm/msm/dp/dp_display.c
488 489 static int dp_display_usbpd_attention_cb(struct device *dev) 490 { 491 int rc = 0; 492 u32 sink_request; 493 struct dp_display_private *dp; 494 495 if (!dev) { 496 DRM_ERROR("invalid dev\n"); 497 return -EINVAL; 498 }
499 DRM_DEBUG_DP("sink_request:%d\n", sink_request);
500 501 dp = container_of(g_dp_display, 502 struct dp_display_private, dp_display); 503 504 /* check for any test request issued by sink */ 505 rc = dp_link_process_request(dp->link); 506 if (!rc) { 507 sink_request = dp->link->sink_request; 508 DRM_DEBUG_DP("hpd_state=%d sink_count=%d\n", dp->hpd_state, sink_request); 509 if (sink_request & DS_PORT_STATUS_CHANGED) 510 rc = dp_display_handle_port_ststus_changed(dp); 511 else 512 rc = dp_display_handle_irq_hpd(dp); 513 } 514 515 return rc; 516 } 517
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