Hi Dongjiu, Thank you for the patch! Yet something to improve: [auto build test ERROR on arm64/for-next/core] [also build test ERROR on v4.17 next-20180601] [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/Dongjiu-Geng/arm64-KVM-export-the-capability-to-set-guest-SError-syndrome/20180602-175846 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm-axm55xx_defconfig (attached as .config) compiler: arm-linux-gnueabi-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=arm All error/warnings (new ones prefixed by >>): In file included from include/linux/kvm_host.h:37:0, from arch/arm/kvm/guest.c:21: arch/arm/include/asm/kvm_host.h:217:11: warning: 'struct kvm_vcpu_events' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_vcpu_events *events); ^~~~~~~~~~~~~~~ arch/arm/include/asm/kvm_host.h:220:11: warning: 'struct kvm_vcpu_events' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_vcpu_events *events); ^~~~~~~~~~~~~~~ >> arch/arm/kvm/guest.c:265:11: warning: 'struct kvm_vcpu_events' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_vcpu_events *events) ^~~~~~~~~~~~~~~ >> arch/arm/kvm/guest.c:264:5: error: conflicting types for 'kvm_arm_vcpu_get_events' int kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu, ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/kvm_host.h:37:0, from arch/arm/kvm/guest.c:21: arch/arm/include/asm/kvm_host.h:216:5: note: previous declaration of 'kvm_arm_vcpu_get_events' was here int kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu, ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/guest.c:271:11: warning: 'struct kvm_vcpu_events' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_vcpu_events *events) ^~~~~~~~~~~~~~~ >> arch/arm/kvm/guest.c:270:5: error: conflicting types for 'kvm_arm_vcpu_set_events' int kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu, ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/kvm_host.h:37:0, from arch/arm/kvm/guest.c:21: arch/arm/include/asm/kvm_host.h:219:5: note: previous declaration of 'kvm_arm_vcpu_set_events' was here int kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu, ^~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/kvm_host.h:37:0, from arch/arm/kvm/../../../virt/kvm/arm/arm.c:22: arch/arm/include/asm/kvm_host.h:217:11: warning: 'struct kvm_vcpu_events' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_vcpu_events *events); ^~~~~~~~~~~~~~~ arch/arm/include/asm/kvm_host.h:220:11: warning: 'struct kvm_vcpu_events' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_vcpu_events *events); ^~~~~~~~~~~~~~~ In file included from include/asm-generic/ioctl.h:5:0, from ./arch/arm/include/generated/uapi/asm/ioctl.h:1, from include/uapi/linux/ioctl.h:5, from include/uapi/linux/fs.h:14, from include/linux/fs.h:41, from include/linux/huge_mm.h:7, from include/linux/mm.h:472, from include/linux/kvm_host.h:17, from arch/arm/kvm/../../../virt/kvm/arm/arm.c:22: arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_vcpu_ioctl': >> include/uapi/linux/kvm.h:1339:54: error: invalid application of 'sizeof' to incomplete type 'struct kvm_vcpu_events' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^ include/uapi/asm-generic/ioctl.h:73:5: note: in definition of macro '_IOC' ((size) << _IOC_SIZESHIFT)) ^~~~ >> include/uapi/asm-generic/ioctl.h:86:56: note: in expansion of macro '_IOC_TYPECHECK' #define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size))) ^~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1339:35: note: in expansion of macro '_IOR' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^~~~ >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1110:7: note: in expansion of macro 'KVM_GET_VCPU_EVENTS' case KVM_GET_VCPU_EVENTS: { ^~~~~~~~~~~~~~~~~~~ >> include/asm-generic/ioctl.h:13:25: error: array type has incomplete element type 'struct kvm_vcpu_events' ((sizeof(t) == sizeof(t[1]) && \ ^ include/uapi/asm-generic/ioctl.h:73:5: note: in definition of macro '_IOC' ((size) << _IOC_SIZESHIFT)) ^~~~ >> include/uapi/asm-generic/ioctl.h:86:56: note: in expansion of macro '_IOC_TYPECHECK' #define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size))) ^~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1339:35: note: in expansion of macro '_IOR' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^~~~ >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1110:7: note: in expansion of macro 'KVM_GET_VCPU_EVENTS' case KVM_GET_VCPU_EVENTS: { ^~~~~~~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1339:54: error: invalid application of 'sizeof' to incomplete type 'struct kvm_vcpu_events' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^ include/uapi/asm-generic/ioctl.h:73:5: note: in definition of macro '_IOC' ((size) << _IOC_SIZESHIFT)) ^~~~ >> include/uapi/asm-generic/ioctl.h:86:56: note: in expansion of macro '_IOC_TYPECHECK' #define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size))) ^~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1339:35: note: in expansion of macro '_IOR' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^~~~ >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1110:7: note: in expansion of macro 'KVM_GET_VCPU_EVENTS' case KVM_GET_VCPU_EVENTS: { ^~~~~~~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1339:54: error: invalid application of 'sizeof' to incomplete type 'struct kvm_vcpu_events' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^ include/uapi/asm-generic/ioctl.h:73:5: note: in definition of macro '_IOC' ((size) << _IOC_SIZESHIFT)) ^~~~ >> include/uapi/asm-generic/ioctl.h:86:56: note: in expansion of macro '_IOC_TYPECHECK' #define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size))) ^~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1339:35: note: in expansion of macro '_IOR' #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) ^~~~ >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1110:7: note: in expansion of macro 'KVM_GET_VCPU_EVENTS' case KVM_GET_VCPU_EVENTS: { ^~~~~~~~~~~~~~~~~~~ >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1111:26: error: storage size of 'events' isn't known struct kvm_vcpu_events events; ^~~~~~ arch/arm/kvm/../../../virt/kvm/arm/arm.c:1111:26: warning: unused variable 'events' [-Wunused-variable] In file included from include/asm-generic/ioctl.h:5:0, from ./arch/arm/include/generated/uapi/asm/ioctl.h:1, from include/uapi/linux/ioctl.h:5, from include/uapi/linux/fs.h:14, from include/linux/fs.h:41, from include/linux/huge_mm.h:7, from include/linux/mm.h:472, from include/linux/kvm_host.h:17, from arch/arm/kvm/../../../virt/kvm/arm/arm.c:22: include/uapi/linux/kvm.h:1340:54: error: invalid application of 'sizeof' to incomplete type 'struct kvm_vcpu_events' #define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events) ^ include/uapi/asm-generic/ioctl.h:73:5: note: in definition of macro '_IOC' ((size) << _IOC_SIZESHIFT)) ^~~~ include/uapi/asm-generic/ioctl.h:87:57: note: in expansion of macro '_IOC_TYPECHECK' #define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size))) ^~~~~~~~~~~~~~ >> include/uapi/linux/kvm.h:1340:35: note: in expansion of macro '_IOW' #define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events) ^~~~ >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1122:7: note: in expansion of macro 'KVM_SET_VCPU_EVENTS' case KVM_SET_VCPU_EVENTS: { ^~~~~~~~~~~~~~~~~~~ >> include/asm-generic/ioctl.h:13:25: error: array type has incomplete element type 'struct kvm_vcpu_events' ((sizeof(t) == sizeof(t[1]) && \ ^ include/uapi/asm-generic/ioctl.h:73:5: note: in definition of macro '_IOC' ((size) << _IOC_SIZESHIFT)) ^~~~ include/uapi/asm-generic/ioctl.h:87:57: note: in expansion of macro '_IOC_TYPECHECK' #define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size))) ^~~~~~~~~~~~~~ vim +/kvm_arm_vcpu_get_events +264 arch/arm/kvm/guest.c 263 > 264 int kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu, > 265 struct kvm_vcpu_events *events) 266 { 267 return -EINVAL; 268 } 269 > 270 int kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu, 271 struct kvm_vcpu_events *events) 272 { 273 return -EINVAL; 274 } 275 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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