* [linux-stable-rc:linux-4.9.y 7442/9999] arch/x86/kvm/../../../virt/kvm/kvm_main.c:620:12: warning: no previous declaration for 'kvm_arch_post_init_vm'
@ 2021-06-08 22:14 kernel test robot
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From: kernel test robot @ 2021-06-08 22:14 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
head: 6940a98776c9014fdcc806e39ab0ebc8316cf241
commit: c6e94acbf6abab3e3c25fcdd3343d0c2a3f160ca [7442/9999] kvm: x86: mmu: Recovery of shattered NX large pages
config: x86_64-randconfig-c022-20210607 (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=c6e94acbf6abab3e3c25fcdd3343d0c2a3f160ca
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc linux-4.9.y
git checkout c6e94acbf6abab3e3c25fcdd3343d0c2a3f160ca
# save the attached .config to linux build tree
make W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/x86/kvm/../../../virt/kvm/kvm_main.c:620:12: warning: no previous declaration for 'kvm_arch_post_init_vm' [-Wmissing-declarations]
int __weak kvm_arch_post_init_vm(struct kvm *kvm)
^~~~~~~~~~~~~~~~~~~~~
>> arch/x86/kvm/../../../virt/kvm/kvm_main.c:629:13: warning: no previous declaration for 'kvm_arch_pre_destroy_vm' [-Wmissing-declarations]
void __weak kvm_arch_pre_destroy_vm(struct kvm *kvm)
^~~~~~~~~~~~~~~~~~~~~~~
--
arch/x86/kvm/x86.c: In function 'kvm_set_msr_common':
arch/x86/kvm/x86.c:2322:7: warning: variable 'gpa_offset' set but not used [-Wunused-but-set-variable]
u64 gpa_offset;
^~~~~~~~~~
arch/x86/kvm/x86.c: At top level:
arch/x86/kvm/x86.c:5078:5: warning: no previous declaration for 'kvm_emulate_wbinvd_noskip' [-Wmissing-declarations]
int kvm_emulate_wbinvd_noskip(struct kvm_vcpu *vcpu)
^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/x86/kvm/x86.c:8140:5: warning: no previous declaration for 'kvm_arch_post_init_vm' [-Wmissing-declarations]
int kvm_arch_post_init_vm(struct kvm *kvm)
^~~~~~~~~~~~~~~~~~~~~
>> arch/x86/kvm/x86.c:8251:6: warning: no previous declaration for 'kvm_arch_pre_destroy_vm' [-Wmissing-declarations]
void kvm_arch_pre_destroy_vm(struct kvm *kvm)
^~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/x86.c: In function 'vcpu_block':
arch/x86/kvm/x86.c:7111:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
vcpu->arch.mp_state =
arch/x86/kvm/x86.c:7113:2: note: here
case KVM_MP_STATE_RUNNABLE:
^~~~
arch/x86/include/asm/bitops.h: Assembler messages:
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
arch/x86/include/asm/bitops.h:96: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts'
vim +/kvm_arch_post_init_vm +620 arch/x86/kvm/../../../virt/kvm/kvm_main.c
615
616 /*
617 * Called after the VM is otherwise initialized, but just before adding it to
618 * the vm_list.
619 */
> 620 int __weak kvm_arch_post_init_vm(struct kvm *kvm)
621 {
622 return 0;
623 }
624
625 /*
626 * Called just after removing the VM from the vm_list, but before doing any
627 * other destruction.
628 */
> 629 void __weak kvm_arch_pre_destroy_vm(struct kvm *kvm)
630 {
631 }
632
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-06-08 22:14 [linux-stable-rc:linux-4.9.y 7442/9999] arch/x86/kvm/../../../virt/kvm/kvm_main.c:620:12: warning: no previous declaration for 'kvm_arch_post_init_vm' kernel test robot
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