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] [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: hexagon-randconfig-r041-20230410 (https://download.01.org/0day-ci/archive/20230415/202304150445.MrUZP5M4-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 9638da200e00bd069e6dd63604e14cbafede9324) 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=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/net/wireless/ath/ath11k/ 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/202304150445.MrUZP5M4-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/net/wireless/ath/ath11k/debugfs_sta.c:8: In file included from drivers/net/wireless/ath/ath11k/debugfs_sta.h:9: In file included from include/net/mac80211.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/net/wireless/ath/ath11k/debugfs_sta.c:8: In file included from drivers/net/wireless/ath/ath11k/debugfs_sta.h:9: In file included from include/net/mac80211.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/net/wireless/ath/ath11k/debugfs_sta.c:8: In file included from drivers/net/wireless/ath/ath11k/debugfs_sta.h:9: In file included from include/net/mac80211.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ >> drivers/net/wireless/ath/ath11k/debugfs_sta.c:242:13: warning: no previous prototype for function 'legacy_rate_str' [-Wmissing-prototypes] const char *legacy_rate_str(int legacy_rate_idx) ^ drivers/net/wireless/ath/ath11k/debugfs_sta.c:242:7: note: declare 'static' if the function is not intended to be used outside of this translation unit const char *legacy_rate_str(int legacy_rate_idx) ^ static 7 warnings generated. 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
