Hi Frank, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.6-rc6 next-20231020] [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/Frank-Li/i3c-add-slave-mode-support/20231019-055940 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20231018215809.3477437-4-Frank.Li%40nxp.com patch subject: [PATCH 3/5] i3c: slave: add svc slave controller support config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20231020/202310201945.nRKjcul0-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231020/202310201945.nRKjcul0-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 <yujie.liu@xxxxxxxxx> | Closes: https://lore.kernel.org/r/202310201945.nRKjcul0-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/i3c/slave/svc-i3c-slave.c:211:39: warning: no previous prototype for 'svc_i3c_get_features' [-Wmissing-prototypes] 211 | const struct i3c_slave_ctrl_features *svc_i3c_get_features(struct i3c_slave_ctrl *ctrl) | ^~~~~~~~~~~~~~~~~~~~ >> drivers/i3c/slave/svc-i3c-slave.c:666:5: warning: no previous prototype for 'svc_i3c_fifo_status' [-Wmissing-prototypes] 666 | int svc_i3c_fifo_status(struct i3c_slave_ctrl *ctrl, bool tx) | ^~~~~~~~~~~~~~~~~~~ vim +/svc_i3c_get_features +211 drivers/i3c/slave/svc-i3c-slave.c 10d1fc84a07d32 Frank Li 2023-10-18 210 10d1fc84a07d32 Frank Li 2023-10-18 @211 const struct i3c_slave_ctrl_features *svc_i3c_get_features(struct i3c_slave_ctrl *ctrl) 10d1fc84a07d32 Frank Li 2023-10-18 212 { 10d1fc84a07d32 Frank Li 2023-10-18 213 struct svc_i3c_slave *svc; 10d1fc84a07d32 Frank Li 2023-10-18 214 10d1fc84a07d32 Frank Li 2023-10-18 215 svc = dev_get_drvdata(&ctrl->dev); 10d1fc84a07d32 Frank Li 2023-10-18 216 10d1fc84a07d32 Frank Li 2023-10-18 217 if (!svc) 10d1fc84a07d32 Frank Li 2023-10-18 218 return NULL; 10d1fc84a07d32 Frank Li 2023-10-18 219 10d1fc84a07d32 Frank Li 2023-10-18 220 return &svc->features; 10d1fc84a07d32 Frank Li 2023-10-18 221 } 10d1fc84a07d32 Frank Li 2023-10-18 222 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
