tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f2e19fd15bd7cba347ce50be71955f5cd28a6019 commit: 760849b1476c94da4cca5d3a5f0a1f64ffc92ba4 [13595/13751] KVM: x86: Make sure KVM_CPUID_FEATURES really are KVM_CPUID_FEATURES config: x86_64-rhel-8.3 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=760849b1476c94da4cca5d3a5f0a1f64ffc92ba4 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 760849b1476c94da4cca5d3a5f0a1f64ffc92ba4 # save the attached .config to linux build tree make W=1 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/cpuid.c:128:26: warning: no previous prototype for 'kvm_find_kvm_cpuid_features' [-Wmissing-prototypes] 128 | struct kvm_cpuid_entry2 *kvm_find_kvm_cpuid_features(struct kvm_vcpu *vcpu) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/kvm_find_kvm_cpuid_features +128 arch/x86/kvm/cpuid.c 127 > 128 struct kvm_cpuid_entry2 *kvm_find_kvm_cpuid_features(struct kvm_vcpu *vcpu) 129 { 130 u32 base = vcpu->arch.kvm_cpuid_base; 131 132 if (!base) 133 return NULL; 134 135 return kvm_find_cpuid_entry(vcpu, base | KVM_CPUID_FEATURES, 0); 136 } 137 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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