Hi Ping-Ke, I love your patch! Perhaps something to improve: [auto build test WARNING on wireless-next/main] [also build test WARNING on next-20220428] [cannot apply to wireless/main v5.18-rc4] [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] url: https://github.com/intel-lab-lkp/linux/commits/Ping-Ke-Shih/rtw89-8852c-add-RFK-and-then-enable-8852ce-in-Makefile-and-Kconfig/20220426-143456 base: https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220429/202204290830.slUaIhad-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c59473aacce38cd7dd77eebceaf3c98c5707ab3b) 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/5aaabdd4d9ac433ed14c1c02147c2609827739d2 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Ping-Ke-Shih/rtw89-8852c-add-RFK-and-then-enable-8852ce-in-Makefile-and-Kconfig/20220426-143456 git checkout 5aaabdd4d9ac433ed14c1c02147c2609827739d2 # 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=i386 SHELL=/bin/bash drivers/net/wireless/realtek/rtw89/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/net/wireless/realtek/rtw89/rtw8852c.c:2640:2: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((__msk), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (__msk)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare] __write_ctrl(R_AX_PWR_RATE_CTRL, B_AX_FORCE_PWR_BY_RATE_VALUE_MASK, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/realtek/rtw89/rtw8852c.c:2621:13: note: expanded from macro '__write_ctrl' u32 _wrt = FIELD_PREP(__msk, _val); \ ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ drivers/net/wireless/realtek/rtw89/rtw8852c.c:2653:2: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((__msk), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (__msk)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare] __write_ctrl(R_AX_PWR_COEXT_CTRL, B_AX_TXAGC_BT_MASK, val, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/realtek/rtw89/rtw8852c.c:2621:13: note: expanded from macro '__write_ctrl' u32 _wrt = FIELD_PREP(__msk, _val); \ ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ 2 warnings generated. vim +2640 drivers/net/wireless/realtek/rtw89/rtw8852c.c 2fb822f82a59db Ping-Ke Shih 2022-04-21 2630 2fb822f82a59db Ping-Ke Shih 2022-04-21 2631 switch (arg.ctrl_all_time) { 2fb822f82a59db Ping-Ke Shih 2022-04-21 2632 case 0xffff: 2fb822f82a59db Ping-Ke Shih 2022-04-21 2633 val = 0; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2634 break; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2635 default: 2fb822f82a59db Ping-Ke Shih 2022-04-21 2636 val = arg.all_time.data; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2637 break; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2638 } 2fb822f82a59db Ping-Ke Shih 2022-04-21 2639 2fb822f82a59db Ping-Ke Shih 2022-04-21 @2640 __write_ctrl(R_AX_PWR_RATE_CTRL, B_AX_FORCE_PWR_BY_RATE_VALUE_MASK, 2fb822f82a59db Ping-Ke Shih 2022-04-21 2641 val, B_AX_FORCE_PWR_BY_RATE_EN, 2fb822f82a59db Ping-Ke Shih 2022-04-21 2642 arg.ctrl_all_time != 0xffff); 2fb822f82a59db Ping-Ke Shih 2022-04-21 2643 2fb822f82a59db Ping-Ke Shih 2022-04-21 2644 switch (arg.ctrl_gnt_bt) { 2fb822f82a59db Ping-Ke Shih 2022-04-21 2645 case 0xffff: 2fb822f82a59db Ping-Ke Shih 2022-04-21 2646 val = 0; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2647 break; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2648 default: 2fb822f82a59db Ping-Ke Shih 2022-04-21 2649 val = arg.gnt_bt.data; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2650 break; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2651 }; 2fb822f82a59db Ping-Ke Shih 2022-04-21 2652 2fb822f82a59db Ping-Ke Shih 2022-04-21 2653 __write_ctrl(R_AX_PWR_COEXT_CTRL, B_AX_TXAGC_BT_MASK, val, 2fb822f82a59db Ping-Ke Shih 2022-04-21 2654 B_AX_TXAGC_BT_EN, arg.ctrl_gnt_bt != 0xffff); 2fb822f82a59db Ping-Ke Shih 2022-04-21 2655 -- 0-DAY CI Kernel Test Service https://01.org/lkp