Hi Yang, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.3 next-20190916] [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/Yang-Weijiang/Enable-Sub-page-Write-Protection-Support/20190917-165718 config: x86_64-lkp (attached as .config) compiler: gcc-7 (Debian 7.4.0-11) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/x86/kvm/vmx/vmx.c: In function 'handle_spp': arch/x86/kvm/vmx/vmx.c:5389:9: error: implicit declaration of function 'kvm_spp_get_permission'; did you mean 'kvm_apic_set_version'? [-Werror=implicit-function-declaration] ret = kvm_spp_get_permission(vcpu->kvm, &spp_info); ^~~~~~~~~~~~~~~~~~~~~~ kvm_apic_set_version In file included from arch/x86/kvm/vmx/vmx.c:63:0: arch/x86/kvm/vmx/vmx.c: In function 'vmx_set_cr3': >> arch/x86/kvm/vmx/spp.h:10:12: error: inlining failed in call to always_inline 'construct_spptp': function body not available inline u64 construct_spptp(unsigned long root_hpa); ^~~~~~~~~~~~~~~ arch/x86/kvm/vmx/vmx.c:2918:9: note: called from here spptp = construct_spptp(vcpu->arch.mmu->sppt_root); ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/construct_spptp +10 arch/x86/kvm/vmx/spp.h ded814173c867b Yang Weijiang 2019-09-17 6 d8d20dcdd099e5 Yang Weijiang 2019-09-17 7 bool is_spp_spte(struct kvm_mmu_page *sp); 45c11debf177b5 Yang Weijiang 2019-09-17 8 void restore_spp_bit(u64 *spte); 45c11debf177b5 Yang Weijiang 2019-09-17 9 bool was_spp_armed(u64 spte); d8d20dcdd099e5 Yang Weijiang 2019-09-17 @10 inline u64 construct_spptp(unsigned long root_hpa); 5b98f4f41c5e1f Yang Weijiang 2019-09-17 11 int kvm_vm_ioctl_get_subpages(struct kvm *kvm, 5b98f4f41c5e1f Yang Weijiang 2019-09-17 12 struct kvm_subpage *spp_info); 5b98f4f41c5e1f Yang Weijiang 2019-09-17 13 int kvm_vm_ioctl_set_subpages(struct kvm *kvm, 5b98f4f41c5e1f Yang Weijiang 2019-09-17 14 struct kvm_subpage *spp_info); 5b98f4f41c5e1f Yang Weijiang 2019-09-17 15 int kvm_vm_ioctl_init_spp(struct kvm *kvm); d8d20dcdd099e5 Yang Weijiang 2019-09-17 16 int kvm_spp_setup_structure(struct kvm_vcpu *vcpu, d8d20dcdd099e5 Yang Weijiang 2019-09-17 17 u32 access_map, gfn_t gfn); ded814173c867b Yang Weijiang 2019-09-17 18 int vmx_spp_flush_sppt(struct kvm *kvm, struct kvm_subpage *spp_info); ded814173c867b Yang Weijiang 2019-09-17 19 void kvm_spp_free_memslot(struct kvm_memory_slot *free, ded814173c867b Yang Weijiang 2019-09-17 20 struct kvm_memory_slot *dont); ded814173c867b Yang Weijiang 2019-09-17 21 int vmx_spp_init(struct kvm *kvm); d8d20dcdd099e5 Yang Weijiang 2019-09-17 22 :::::: The code at line 10 was first introduced by commit :::::: d8d20dcdd099e58254195f4b083a76c3e39331de mmu: spp: Add SPP Table setup functions :::::: TO: Yang Weijiang <weijiang.yang@xxxxxxxxx> :::::: CC: 0day robot <lkp@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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