tree: https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-next head: 7aef27f0b2a8a58c28578d3e0caf3f27e1a1c39c commit: 7aef27f0b2a8a58c28578d3e0caf3f27e1a1c39c [3/3] svm/sev: Register SEV and SEV-ES ASIDs to the misc controller config: x86_64-randconfig-a004-20210405 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 30df6d5d6a8537d3ec7d8fe4299289a4c5a74d5c) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git/commit/?id=7aef27f0b2a8a58c28578d3e0caf3f27e1a1c39c git remote add cgroup https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git git fetch --no-tags cgroup for-next git checkout 7aef27f0b2a8a58c28578d3e0caf3f27e1a1c39c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from arch/x86/kvm/svm/sev.c:17: >> include/linux/misc_cgroup.h:98:15: warning: no previous prototype for function 'misc_cg_res_total_usage' [-Wmissing-prototypes] unsigned long misc_cg_res_total_usage(enum misc_res_type type) ^ include/linux/misc_cgroup.h:98:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned long misc_cg_res_total_usage(enum misc_res_type type) ^ static 1 warning generated. vim +/misc_cg_res_total_usage +98 include/linux/misc_cgroup.h a72232eabdfcfe Vipin Sharma 2021-03-29 97 a72232eabdfcfe Vipin Sharma 2021-03-29 @98 unsigned long misc_cg_res_total_usage(enum misc_res_type type) a72232eabdfcfe Vipin Sharma 2021-03-29 99 { a72232eabdfcfe Vipin Sharma 2021-03-29 100 return 0; a72232eabdfcfe Vipin Sharma 2021-03-29 101 } a72232eabdfcfe Vipin Sharma 2021-03-29 102 :::::: The code at line 98 was first introduced by commit :::::: a72232eabdfcfe365a05a3eb392288b78d25a5ca cgroup: Add misc cgroup controller :::::: TO: Vipin Sharma <vipinsh@xxxxxxxxxx> :::::: CC: Tejun Heo <tj@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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