tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4 head: 42678a05df917049d9618eeda160fb795a6db981 commit: 5befab42f0102ef1f6839b998e5a9ba5b3593037 [13/34] CHROMIUM: mm: protect mremap() against SPF hanlder config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.4 git checkout 5befab42f0102ef1f6839b998e5a9ba5b3593037 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the chrome-os/chromeos-5.4 HEAD 42678a05df917049d9618eeda160fb795a6db981 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): In file included from include/linux/memcontrol.h:20, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:13: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in -- In file included from arch/x86/entry/common.c:13: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in In file included from arch/x86/include/asm/syscall.h:16, from include/linux/audit.h:259, from arch/x86/entry/common.c:18: arch/x86/include/asm/asm-offsets.h: At top level: arch/x86/include/asm/asm-offsets.h:1:10: fatal error: generated/asm-offsets.h: No such file or directory 1 | #include <generated/asm-offsets.h> | ^~~~~~~~~~~~~~~~~~~~~~~~~ compilation terminated. -- In file included from include/linux/pid_namespace.h:7, from include/linux/ptrace.h:10, from include/uapi/asm-generic/bpf_perf_event.h:4, from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1, from include/uapi/linux/bpf_perf_event.h:11, from include/linux/perf_event.h:18, from arch/x86/events/core.c:15: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/events/core.c: At top level: arch/x86/events/core.c:2316:6: warning: no previous prototype for 'arch_perf_update_userpage' [-Wmissing-prototypes] 2316 | void arch_perf_update_userpage(struct perf_event *event, | ^~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from arch/x86/kernel/head32.c:11: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/head32.c: At top level: arch/x86/kernel/head32.c:72:13: warning: no previous prototype for 'mk_early_pgtbl_32' [-Wmissing-prototypes] 72 | void __init mk_early_pgtbl_32(void) | ^~~~~~~~~~~~~~~~~ -- In file included from include/linux/kallsyms.h:12, from arch/x86/kernel/traps.c:17: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/traps.c: At top level: arch/x86/kernel/traps.c:925:13: warning: no previous prototype for 'trap_init' [-Wmissing-prototypes] 925 | void __init trap_init(void) | ^~~~~~~~~ -- In file included from include/linux/kallsyms.h:12, from include/linux/ftrace.h:11, from arch/x86/kernel/ftrace.c:18: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/ftrace.c: At top level: arch/x86/kernel/ftrace.c:1019:6: warning: no previous prototype for 'prepare_ftrace_return' [-Wmissing-prototypes] 1019 | void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent, | ^~~~~~~~~~~~~~~~~~~~~ -- In file included from arch/x86/kernel/kvm.c:15: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/kvm.c: At top level: arch/x86/kernel/kvm.c:797:16: warning: no previous prototype for '__kvm_vcpu_is_preempted' [-Wmissing-prototypes] 797 | __visible bool __kvm_vcpu_is_preempted(long cpu) | ^~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/kvm.c:872:6: warning: no previous prototype for 'arch_haltpoll_enable' [-Wmissing-prototypes] 872 | void arch_haltpoll_enable(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/kvm.c:885:6: warning: no previous prototype for 'arch_haltpoll_disable' [-Wmissing-prototypes] 885 | void arch_haltpoll_disable(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1419, from arch/x86/kernel/devicetree.c:16: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/devicetree.c: At top level: arch/x86/kernel/devicetree.c:33:13: warning: no previous prototype for 'early_init_dt_scan_chosen_arch' [-Wmissing-prototypes] 33 | void __init early_init_dt_scan_chosen_arch(unsigned long node) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/devicetree.c:38:13: warning: no previous prototype for 'early_init_dt_add_memory_arch' [-Wmissing-prototypes] 38 | void __init early_init_dt_add_memory_arch(u64 base, u64 size) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/kvm_host.h:14, from arch/x86/kvm/../../../virt/kvm/kvm_main.c:18: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kvm/../../../virt/kvm/kvm_main.c: At top level: arch/x86/kvm/../../../virt/kvm/kvm_main.c:673:12: warning: no previous prototype for 'kvm_arch_post_init_vm' [-Wmissing-prototypes] 673 | int __weak kvm_arch_post_init_vm(struct kvm *kvm) | ^~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/../../../virt/kvm/kvm_main.c:682:13: warning: no previous prototype for 'kvm_arch_pre_destroy_vm' [-Wmissing-prototypes] 682 | void __weak kvm_arch_pre_destroy_vm(struct kvm *kvm) | ^~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/kvm_host.h:14, from arch/x86/kvm/../../../virt/kvm/irqchip.c:15: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kvm/../../../virt/kvm/irqchip.c: At top level: arch/x86/kvm/../../../virt/kvm/irqchip.c:20:10: fatal error: irq.h: No such file or directory 20 | #include "irq.h" | ^~~~~~~ compilation terminated. -- In file included from include/linux/kvm_host.h:14, from arch/x86/kvm/x86.c:19: include/linux/mm.h: In function 'vma_merge': 2412 | return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off, | ^~~ | uff include/linux/mm.h:2412:64: note: each undeclared identifier is reported only once for each function it appears in In file included from arch/x86/include/asm/bug.h:83, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:78, from include/linux/hardirq.h:5, from include/linux/kvm_host.h:7, from arch/x86/kvm/x86.c:19: arch/x86/kvm/x86.c: In function 'kvm_guest_time_update': arch/x86/kvm/x86.c:2465:37: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 2465 | WARN_ON(vcpu->hv_clock.system_time < 0); | ^ include/asm-generic/bug.h:113:25: note: in definition of macro 'WARN_ON' 113 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ arch/x86/kvm/x86.c: At top level: arch/x86/kvm/x86.c:9618:5: warning: no previous prototype for 'kvm_arch_post_init_vm' [-Wmissing-prototypes] 9618 | int kvm_arch_post_init_vm(struct kvm *kvm) | ^~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/x86.c:9724:6: warning: no previous prototype for 'kvm_arch_pre_destroy_vm' [-Wmissing-prototypes] 9724 | void kvm_arch_pre_destroy_vm(struct kvm *kvm) | ^~~~~~~~~~~~~~~~~~~~~~~ .. vim +2412 include/linux/mm.h 2398 2399 extern struct vm_area_struct *__vma_merge(struct mm_struct *mm, 2400 struct vm_area_struct *prev, unsigned long addr, unsigned long end, 2401 unsigned long vm_flags, struct anon_vma *anon, struct file *file, 2402 pgoff_t pgoff, struct mempolicy *mpol, 2403 struct vm_userfaultfd_ctx uff, const char __user *anon_name, 2404 bool keep_locked); 2405 2406 static inline struct vm_area_struct *vma_merge(struct mm_struct *mm, 2407 struct vm_area_struct *prev, unsigned long addr, unsigned long end, 2408 unsigned long vm_flags, struct anon_vma *anon, struct file *file, 2409 pgoff_t pgoff, struct mempolicy *pol, 2410 struct vm_userfaultfd_ctx uff, const char __user *anon_name) 2411 { 2413 pol, uff, anon_name, false); 2414 } 2415 --- 0-DAY CI Kernel Test Service, Intel Corporation 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