tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git debugfs_cleanup head: ed5c9a4774ec958bdcd25c4786629537e8ee2317 commit: 14edfc42c918fb71d35786bb35622a175d9fab5c [4/55] x86: kvm: no need to check return value of debugfs_create functions config: x86_64-kexec (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout 14edfc42c918fb71d35786bb35622a175d9fab5c # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/x86/kvm/debugfs.c: In function 'kvm_arch_create_vcpu_debugfs': >> arch/x86/kvm/debugfs.c:60:3: error: 'ret' undeclared (first use in this function); did you mean 'net'? ret = debugfs_create_file("lapic_timer_advance_ns", 0444, ^~~ net arch/x86/kvm/debugfs.c:60:3: note: each undeclared identifier is reported only once for each function it appears in vim +60 arch/x86/kvm/debugfs.c 4f5758fc Luiz Capitulino 2016-09-16 53 235539b4 Luiz Capitulino 2016-09-07 54 int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) 235539b4 Luiz Capitulino 2016-09-07 55 { 14edfc42 Greg Kroah-Hartman 2018-05-30 56 debugfs_create_file("tsc-offset", 0444, vcpu->debugfs_dentry, vcpu, 14edfc42 Greg Kroah-Hartman 2018-05-30 57 &vcpu_tsc_offset_fops); 4f5758fc Luiz Capitulino 2016-09-16 58 16ba3ab4 Wanpeng Li 2019-05-20 59 if (lapic_in_kernel(vcpu)) { 16ba3ab4 Wanpeng Li 2019-05-20 @60 ret = debugfs_create_file("lapic_timer_advance_ns", 0444, :::::: The code at line 60 was first introduced by commit :::::: 16ba3ab4e15ca031270deb3cbfd38416c719e291 KVM: LAPIC: Expose per-vCPU timer_advance_ns to userspace :::::: TO: Wanpeng Li <wanpengli@xxxxxxxxxxx> :::::: CC: Paolo Bonzini <pbonzini@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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