Hi Zengruan, Thank you for the patch! Yet something to improve: [auto build test ERROR on kvmarm/next] [also build test ERROR on kvm/linux-next linus/master v5.5-rc3 next-20191220] [cannot apply to arm64/for-next/core] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Zengruan-Ye/KVM-arm64-VCPU-preempted-check-support/20191227-000637 base: https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next config: arm64-alldefconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 7.5.0 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 GCC_VERSION=7.5.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/spinlock.h:89:0, from include/linux/radix-tree.h:16, from include/linux/idr.h:15, from include/linux/kernfs.h:13, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/of.h:17, from include/linux/irqdomain.h:35, from include/linux/acpi.h:13, from include/acpi/apei.h:9, from include/acpi/ghes.h:5, from include/linux/arm_sdei.h:8, from arch/arm64/kernel/asm-offsets.c:10: arch/arm64/include/asm/spinlock.h: In function 'vcpu_is_preempted': >> arch/arm64/include/asm/spinlock.h:18:9: error: implicit declaration of function 'pv_vcpu_is_preempted'; did you mean 'vcpu_is_preempted'? [-Werror=implicit-function-declaration] return pv_vcpu_is_preempted(cpu); ^~~~~~~~~~~~~~~~~~~~ vcpu_is_preempted cc1: some warnings being treated as errors make[2]: *** [arch/arm64/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 27 real 5 user 7 sys 48.63% cpu make prepare vim +18 arch/arm64/include/asm/spinlock.h 14 15 #define vcpu_is_preempted vcpu_is_preempted 16 static inline bool vcpu_is_preempted(long cpu) 17 { > 18 return pv_vcpu_is_preempted(cpu); 19 } 20 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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