Hi Aaron, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on kvm/linux-next] [also build test WARNING on v5.9-rc2 next-20200826] [cannot apply to kvms390/next vhost/linux-next] [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/0day-ci/linux/commits/Aaron-Lewis/Allow-userspace-to-manage-MSRs/20200819-051903 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: x86_64-randconfig-a001-20200826 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 7cfcecece0e0430937cf529ce74d3a071a4dedc6) 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 # 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 >>): >> arch/x86/kvm/vmx/vmx.c:3823:6: warning: no previous prototype for function 'vmx_set_user_msr_intercept' [-Wmissing-prototypes] void vmx_set_user_msr_intercept(struct kvm_vcpu *vcpu, u32 msr) ^ arch/x86/kvm/vmx/vmx.c:3823:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void vmx_set_user_msr_intercept(struct kvm_vcpu *vcpu, u32 msr) ^ static 1 warning generated. # https://github.com/0day-ci/linux/commit/e78e2c7f2ae3e9e6be9768f1616b043406ae24dd git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Aaron-Lewis/Allow-userspace-to-manage-MSRs/20200819-051903 git checkout e78e2c7f2ae3e9e6be9768f1616b043406ae24dd vim +/vmx_set_user_msr_intercept +3823 arch/x86/kvm/vmx/vmx.c 3822 > 3823 void vmx_set_user_msr_intercept(struct kvm_vcpu *vcpu, u32 msr) 3824 { 3825 vmx_enable_intercept_for_msr(vcpu, msr, MSR_TYPE_RW); 3826 } 3827 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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