Hi Suraj, kernel test robot noticed the following build errors:
[auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on v6.16-rc7 next-20250725] [cannot apply to linus/master] [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/Suraj-Kandpal/drm-writeback-Add-function-that-takes-preallocated-connector/20250725-133017 base: git://anongit.freedesktop.org/drm-intel for-linux-next patch link: https://lore.kernel.org/r/20250725050409.2687242-12-suraj.kandpal%40intel.com patch subject: [PATCH 11/28] drm/i915/writeback: Define encoder->get_hw_state config: i386-buildonly-randconfig-006-20250725 (https://download.01.org/0day-ci/archive/20250726/202507261936.cnkpq7bw-...@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250726/202507261936.cnkpq7bw-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202507261936.cnkpq7bw-...@intel.com/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_writeback.c:177:3: error: fallthrough >> annotation does not directly precede switch label 177 | fallthrough; | ^ include/linux/compiler_attributes.h:214:41: note: expanded from macro 'fallthrough' 214 | # define fallthrough __attribute__((__fallthrough__)) | ^ 1 error generated. vim +177 drivers/gpu/drm/i915/display/intel_writeback.c 141 142 static bool 143 intel_writeback_get_hw_state(struct intel_encoder *encoder, 144 enum pipe *pipe) 145 { 146 struct intel_display *display = to_intel_display(encoder); 147 u8 pipe_mask = 0; 148 u32 tmp; 149 150 /* TODO need to be done for both the wd transcoder */ 151 tmp = intel_de_read(display, 152 TRANSCONF_WD(TRANSCODER_WD_0)); 153 if (!(tmp & WD_TRANS_ENABLE)) 154 return false; 155 156 tmp = intel_de_read(display, 157 WD_TRANS_FUNC_CTL(TRANSCODER_WD_0)); 158 159 if (!(tmp & TRANS_WD_FUNC_ENABLE)) 160 return false; 161 162 switch (tmp & WD_INPUT_SELECT_MASK) { 163 case WD_INPUT_PIPE_A: 164 pipe_mask |= BIT(PIPE_A); 165 break; 166 case WD_INPUT_PIPE_B: 167 pipe_mask |= BIT(PIPE_B); 168 break; 169 case WD_INPUT_PIPE_C: 170 pipe_mask |= BIT(PIPE_C); 171 break; 172 case WD_INPUT_PIPE_D: 173 pipe_mask |= BIT(PIPE_D); 174 break; 175 default: 176 MISSING_CASE(tmp & WD_INPUT_SELECT_MASK); > 177 fallthrough; 178 } 179 180 if (pipe_mask == 0) 181 return false; 182 183 *pipe = ffs(pipe_mask) - 1; 184 185 return true; 186 } 187 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
