Hi Marc, I love your patch! Yet something to improve:
[auto build test ERROR on arm64/for-next/core] [cannot apply to kvmarm/next linus/master v4.15 next-20180126] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Marc-Zyngier/arm64-Add-SMCCC-v1-1-support-and-CVE-2017-5715-Spectre-variant-2-mitigation/20180131-234336 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 Note: the linux-review/Marc-Zyngier/arm64-Add-SMCCC-v1-1-support-and-CVE-2017-5715-Spectre-variant-2-mitigation/20180131-234336 HEAD 8c17f9fc363230480b44d05f728350e6fa448bd4 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): arch/arm64/kvm/../../../virt/kvm/arm/psci.c: In function 'kvm_arm_get_fw_reg': >> arch/arm64/kvm/../../../virt/kvm/arm/psci.c:443:9: error: too many arguments >> to function 'kvm_psci_version' val = kvm_psci_version(vcpu, vcpu->kvm); ^~~~~~~~~~~~~~~~ arch/arm64/kvm/../../../virt/kvm/arm/psci.c:237:5: note: declared here int kvm_psci_version(struct kvm_vcpu *vcpu) ^~~~~~~~~~~~~~~~ vim +/kvm_psci_version +443 arch/arm64/kvm/../../../virt/kvm/arm/psci.c 436 437 int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) 438 { 439 if (reg->id == KVM_REG_ARM_PSCI_VERSION) { 440 void __user *uaddr = (void __user *)(long)reg->addr; 441 u64 val; 442 > 443 val = kvm_psci_version(vcpu, vcpu->kvm); 444 if (val == KVM_ARM_PSCI_0_1) 445 return -EINVAL; 446 if (copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id))) 447 return -EFAULT; 448 449 return 0; 450 } 451 452 return -EINVAL; 453 } 454 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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