Hi Maharaja, kernel test robot noticed the following build warnings: [auto build test WARNING on kvalo-ath/ath-next] [cannot apply to wireless/main wireless-next/main linus/master v6.3-rc6 next-20230413] [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/Maharaja-Kennadyrajan/wifi-ath11k-Add-rx-histogram-stats/20230414-192912 base: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git ath-next patch link: https://lore.kernel.org/r/20230414112603.601199-1-quic_mkenna%40quicinc.com patch subject: [PATCH v2] wifi: ath11k: Add rx histogram stats config: ia64-allyesconfig (https://download.01.org/0day-ci/archive/20230414/202304142106.PaDYMwe0-lkp@xxxxxxxxx/config) compiler: ia64-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/8612657f6ce3fd8bd47a5c1b4ca0177e95a647f0 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Maharaja-Kennadyrajan/wifi-ath11k-Add-rx-histogram-stats/20230414-192912 git checkout 8612657f6ce3fd8bd47a5c1b4ca0177e95a647f0 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/net/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304142106.PaDYMwe0-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/net/wireless/ath/ath11k/debugfs_sta.c:242:13: warning: no previous prototype for 'legacy_rate_str' [-Wmissing-prototypes] 242 | const char *legacy_rate_str(int legacy_rate_idx) | ^~~~~~~~~~~~~~~ vim +/legacy_rate_str +242 drivers/net/wireless/ath/ath11k/debugfs_sta.c 241 > 242 const char *legacy_rate_str(int legacy_rate_idx) 243 { 244 switch (legacy_rate_idx) { 245 case 0: 246 return "1Mbps"; 247 case 1: 248 return "2Mbps"; 249 case 2: 250 return "5.5Mbps"; 251 case 3: 252 return "6Mbps"; 253 case 4: 254 return "9Mbps"; 255 case 5: 256 return "11Mbps"; 257 case 6: 258 return "12Mbps"; 259 case 7: 260 return "18Mbps"; 261 case 8: 262 return "18Mbps"; 263 case 9: 264 return "24Mbps"; 265 case 10: 266 return "36Mbps"; 267 case 11: 268 return "48Mbps"; 269 case 12: 270 return "54Mbps"; 271 default: 272 return "invalid legacy rate index"; 273 } 274 } 275 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests