tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 44bf136283e567b2b62653be7630e7511da41da2 commit: 2e9632009158054bcb6c1766c6748476db0561a0 [9460/12794] Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets config: hexagon-buildonly-randconfig-r003-20230421 (https://download.01.org/0day-ci/archive/20230422/202304220119.94Pw6YsD-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661) 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=2e9632009158054bcb6c1766c6748476db0561a0 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 2e9632009158054bcb6c1766c6748476db0561a0 # 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/bluetooth/ 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/202304220119.94Pw6YsD-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/bluetooth/btnxpuart.c:10: In file included from include/linux/serdev.h:10: In file included from include/linux/iopoll.h:14: 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/bluetooth/btnxpuart.c:10: In file included from include/linux/serdev.h:10: In file included from include/linux/iopoll.h:14: 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/bluetooth/btnxpuart.c:10: In file included from include/linux/serdev.h:10: In file included from include/linux/iopoll.h:14: 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/bluetooth/btnxpuart.c:1277:34: warning: unused variable 'nxpuart_of_match_table' [-Wunused-const-variable] static const struct of_device_id nxpuart_of_match_table[] = { ^ 7 warnings generated. vim +/nxpuart_of_match_table +1277 drivers/bluetooth/btnxpuart.c 1276 > 1277 static const struct of_device_id nxpuart_of_match_table[] = { 1278 { .compatible = "nxp,88w8987-bt", .data = &w8987_data }, 1279 { .compatible = "nxp,88w8997-bt", .data = &w8997_data }, 1280 { } 1281 }; 1282 MODULE_DEVICE_TABLE(of, nxpuart_of_match_table); 1283 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
