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Date: Mon, 17 Jan 2022 07:15:52 +0800 From: kernel test robot <lkp@...el.com> To: Ingo Molnar <mingo@...nel.org> Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org Subject: [mingo-tip:sched/headers 1617/2384] arch/mips/alchemy/common/clock.c:143:2: error: use of undeclared identifier 'preset_lpj' tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers head: 4c707c1c0de83967079b4e385012fa5b00e2cd11 commit: 4a1f9d16bf267958eefcbac668167e6135f75621 [1617/2384] headers/deps: ktime: Remove the <linux/ktime_api.h> header from <linux/ktime.h> config: mips-randconfig-c004-20220116 (https://download.01.org/0day-ci/archive/20220117/202201170727.IDnTpMbA-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c63a3175c2947e8c1a2d3bbe16a8586600705c54) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=4a1f9d16bf267958eefcbac668167e6135f75621 git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip sched/headers git checkout 4a1f9d16bf267958eefcbac668167e6135f75621 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@...el.com> All errors (new ones prefixed by >>): >> arch/mips/alchemy/common/clock.c:143:2: error: use of undeclared identifier 'preset_lpj' preset_lpj = alchemy_clk_cpu_recalc(NULL, ALCHEMY_ROOTCLK_RATE); ^ arch/mips/alchemy/common/clock.c:144:2: error: use of undeclared identifier 'preset_lpj' preset_lpj /= 2 * HZ; ^ arch/mips/alchemy/common/clock.c:141:13: warning: no previous prototype for function 'alchemy_set_lpj' [-Wmissing-prototypes] void __init alchemy_set_lpj(void) ^ arch/mips/alchemy/common/clock.c:141:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init alchemy_set_lpj(void) ^ static arch/mips/alchemy/common/clock.c:554:31: warning: variable 'ret' set but not used [-Wunused-but-set-variable] unsigned long div, v, flags, ret; ^ arch/mips/alchemy/common/clock.c:676:31: warning: variable 'ret' set but not used [-Wunused-but-set-variable] unsigned long div, v, flags, ret; ^ 3 warnings and 2 errors generated. vim +/preset_lpj +143 arch/mips/alchemy/common/clock.c 474402291a0ad4 Manuel Lauss 2014-07-23 140 45a848f7fa067a Manuel Lauss 2015-01-29 141 void __init alchemy_set_lpj(void) 45a848f7fa067a Manuel Lauss 2015-01-29 142 { 45a848f7fa067a Manuel Lauss 2015-01-29 @143 preset_lpj = alchemy_clk_cpu_recalc(NULL, ALCHEMY_ROOTCLK_RATE); 45a848f7fa067a Manuel Lauss 2015-01-29 144 preset_lpj /= 2 * HZ; 45a848f7fa067a Manuel Lauss 2015-01-29 145 } 45a848f7fa067a Manuel Lauss 2015-01-29 146 :::::: The code at line 143 was first introduced by commit :::::: 45a848f7fa067a81ae606bb06b2edcdf53772eac MIPS: Alchemy: preset loops_per_jiffy based on CPU clock :::::: TO: Manuel Lauss <manuel.lauss@...il.com> :::::: CC: Ralf Baechle <ralf@...ux-mips.org> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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