On Thu, 04 Jan 2024, kernel test robot <lkp@xxxxxxxxx> wrote: > Hi Jani, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on drm-misc/drm-misc-next] > [also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.7-rc8 next-20240103] > [cannot apply to drm-intel/for-linux-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#_base_tree_information] > > url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-bridge-add-edid_read-hook-and-drm_bridge_edid_read/20240103-181513 > base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next > patch link: https://lore.kernel.org/r/87fb7fd52d087dd9a15b7194f3915b6b1c4146d6.1704276309.git.jani.nikula%40intel.com > patch subject: [PATCH v2 23/39] drm/bridge: nxp-ptn3460: switch to ->edid_read callback > config: arm-randconfig-001-20240103 (https://download.01.org/0day-ci/archive/20240104/202401040455.PPhqJiVr-lkp@xxxxxxxxx/config) > compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project 7e186d366d6c7def0543acc255931f617e76dff0) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240104/202401040455.PPhqJiVr-lkp@xxxxxxxxx/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > | Closes: https://lore.kernel.org/oe-kbuild-all/202401040455.PPhqJiVr-lkp@xxxxxxxxx/ > > All warnings (new ones prefixed by >>): > >>> drivers/gpu/drm/bridge/nxp-ptn3460.c:170:6: warning: variable 'drm_edid' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] > 170 | if (!edid) { > | ^~~~~ > drivers/gpu/drm/bridge/nxp-ptn3460.c:189:9: note: uninitialized use occurs here > 189 | return drm_edid; > | ^~~~~~~~ > drivers/gpu/drm/bridge/nxp-ptn3460.c:170:2: note: remove the 'if' if its condition is always false > 170 | if (!edid) { > | ^~~~~~~~~~~~ > 171 | DRM_ERROR("Failed to allocate EDID\n"); > | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > 172 | goto out; > | ~~~~~~~~~ > 173 | } > | ~ > drivers/gpu/drm/bridge/nxp-ptn3460.c:161:33: note: initialize the variable 'drm_edid' to silence this warning > 161 | const struct drm_edid *drm_edid; > | ^ > | = NULL > 1 warning generated. This is a valid report, fixed locally. BR, Jani. -- Jani Nikula, Intel
