> -----Original Message----- > From: Kalle Valo <kvalo@xxxxxxxxxx> > Sent: Friday, April 29, 2022 1:53 PM > To: Pkshih <pkshih@xxxxxxxxxxx> > Cc: kernel test robot <lkp@xxxxxxxxx>; llvm@xxxxxxxxxxxxxxx; kbuild-all@xxxxxxxxxxxx; > linux-wireless@xxxxxxxxxxxxxxx > Subject: Re: [PATCH 15/15] rtw89: 8852c: add 8852ce to Makefile and Kconfig > > Pkshih <pkshih@xxxxxxxxxxx> writes: > > >> -----Original Message----- > >> From: kernel test robot <lkp@xxxxxxxxx> > >> Sent: Friday, April 29, 2022 8:46 AM > >> To: Pkshih <pkshih@xxxxxxxxxxx>; kvalo@xxxxxxxxxx > >> Cc: llvm@xxxxxxxxxxxxxxx; kbuild-all@xxxxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx > >> Subject: Re: [PATCH 15/15] rtw89: 8852c: add 8852ce to Makefile and Kconfig > >> > >> 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)) \ > >> ^~~~~~~~~ > > > > We add 'BUILD_BUG_ON((__msk & __en) != 0);' to prevent coding error during > > development. The __msk and __en in the expression are constant and expected > > no intersection of these two bit masks. Since we have verified this code, > > I think I can send a patch to remove the BUILD_BUG_ON() from this macro. > > I'm dropping the patchset, please submit a new version including your > fix. > v2 has sent. But, I misread the cause that isn't due to BUILD_BUG_ON() but mask type. Ping-Ke
