Hi Lan, [auto build test ERROR on kvm/linux-next] [also build test ERROR on v4.5-rc6 next-20160301] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Lan-Tianyu/KVM-Replace-the-number-of-page-entries-per-page-with-PT64_ENT_PER_PAGE-macro/20160301-230910 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: x86_64-randconfig-x013-201609 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): In file included from include/linux/list.h:8:0, from include/linux/preempt.h:10, from include/linux/hardirq.h:4, from include/linux/kvm_host.h:10, from arch/x86/kvm/../../../virt/kvm/kvm_main.c:21: >> arch/x86/include/asm/kvm_host.h:268:38: error: 'PT64_ENT_PER_PAGE' undeclared here (not in a function) DECLARE_BITMAP(unsync_child_bitmap, PT64_ENT_PER_PAGE); ^ include/linux/kernel.h:67:30: note: in definition of macro 'DIV_ROUND_UP' #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) ^ include/linux/types.h:10:21: note: in expansion of macro 'BITS_TO_LONGS' unsigned long name[BITS_TO_LONGS(bits)] ^ >> arch/x86/include/asm/kvm_host.h:268:2: note: in expansion of macro 'DECLARE_BITMAP' DECLARE_BITMAP(unsync_child_bitmap, PT64_ENT_PER_PAGE); ^ vim +/PT64_ENT_PER_PAGE +268 arch/x86/include/asm/kvm_host.h 262 unsigned int unsync_children; 263 struct kvm_rmap_head parent_ptes; /* rmap pointers to parent sptes */ 264 265 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */ 266 unsigned long mmu_valid_gen; 267 > 268 DECLARE_BITMAP(unsync_child_bitmap, PT64_ENT_PER_PAGE); 269 270 #ifdef CONFIG_X86_32 271 /* --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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