Messages in this thread | | | Date | Thu, 25 Nov 2021 18:30:33 +0800 | From | kernel test robot <> | Subject | [morse:mpam/snapshot/v5.15 119/139] arch/arm64/include/asm/mpam.h:110:6: warning: variable 'regval' set but not used |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.15 head: ce3629841262f725a5f3a327403fcaf0e604a85e commit: ec95ea0172936108af0216efb0e4f28402eaf1c6 [119/139] arm64: mpam: Add helpers to change a tasks and cpu mpam partid/pmg values config: arm64-randconfig-r012-20211115 (https://download.01.org/0day-ci/archive/20211125/202111251807.ljdrXC4V-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project fbe72e41b99dc7994daac300d208a955be3e4a0a) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=ec95ea0172936108af0216efb0e4f28402eaf1c6 git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git git fetch --no-tags morse mpam/snapshot/v5.15 git checkout ec95ea0172936108af0216efb0e4f28402eaf1c6 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from arch/arm64/kernel/process.c:51: >> arch/arm64/include/asm/mpam.h:110:6: warning: variable 'regval' set but not used [-Wunused-but-set-variable] u64 regval; ^ arch/arm64/include/asm/mpam.h:133:6: warning: variable 'regval' set but not used [-Wunused-but-set-variable] u64 regval = mpam_get_regval(tsk); ^ 2 warnings generated.
vim +/regval +110 arch/arm64/include/asm/mpam.h
105 106 static inline void mpam_set_task_partid_pmg(struct task_struct *tsk, 107 u16 partid_d, u16 partid_i, 108 u8 pmg_d, u8 pmg_i) 109 { > 110 u64 regval; 111 112 regval = FIELD_PREP(MPAM_SYSREG_PARTID_D, partid_d); 113 regval |= FIELD_PREP(MPAM_SYSREG_PARTID_I, partid_i); 114 regval |= FIELD_PREP(MPAM_SYSREG_PMG_D, pmg_d); 115 regval |= FIELD_PREP(MPAM_SYSREG_PMG_I, pmg_i); 116
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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