tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git next head: 80fbd89cbd07287a7013006c14ddec923b7a4ff6 commit: 55dd00a73a518281bc846dc5de1a718349431eb2 [8/12] KVM: x86: add KVM_HC_CLOCK_PAIRING hypercall config: i386-randconfig-h1-02082244 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 55dd00a73a518281bc846dc5de1a718349431eb2 # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): arch/x86/kvm/x86.c: In function 'kvm_pv_clock_pairing': arch/x86/kvm/x86.c:6156:2: error: unknown type name 'cycle_t' cycle_t cycle; ^~~~~~~ In file included from include/uapi/linux/stddef.h:1:0, from include/linux/stddef.h:4, from include/uapi/linux/posix_types.h:4, from include/uapi/linux/types.h:13, from include/linux/types.h:5, from include/linux/kvm_host.h:9, from arch/x86/kvm/x86.c:22: arch/x86/kvm/x86.c:6162:6: error: implicit declaration of function 'kvm_get_walltime_and_clockread' [-Werror=implicit-function-declaration] if (kvm_get_walltime_and_clockread(&ts, &cycle) == false) ^ include/linux/compiler.h:149:30: note: in definition of macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ >> arch/x86/kvm/x86.c:6162:2: note: in expansion of macro 'if' if (kvm_get_walltime_and_clockread(&ts, &cycle) == false) ^~ cc1: some warnings being treated as errors vim +/if +6162 arch/x86/kvm/x86.c 6146 */ 6147 return kvm_vcpu_halt(vcpu) && ret; 6148 } 6149 EXPORT_SYMBOL_GPL(kvm_emulate_halt); 6150 6151 static int kvm_pv_clock_pairing(struct kvm_vcpu *vcpu, gpa_t paddr, 6152 unsigned long clock_type) 6153 { 6154 struct kvm_clock_pairing clock_pairing; 6155 struct timespec ts; 6156 cycle_t cycle; 6157 int ret; 6158 6159 if (clock_type != KVM_CLOCK_PAIRING_WALLCLOCK) 6160 return -KVM_EOPNOTSUPP; 6161 > 6162 if (kvm_get_walltime_and_clockread(&ts, &cycle) == false) 6163 return -KVM_EOPNOTSUPP; 6164 6165 clock_pairing.sec = ts.tv_sec; 6166 clock_pairing.nsec = ts.tv_nsec; 6167 clock_pairing.tsc = kvm_read_l1_tsc(vcpu, cycle); 6168 clock_pairing.flags = 0; 6169 6170 ret = 0; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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