Hi, [auto build test WARNING on iommu/next] [also build test WARNING on v4.7-rc7 next-20160722] [cannot apply to tip/x86/core] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Baoquan-He/Enable-legacy-irq-mode-before-jump-to-kexec-kdump-kernel/20160724-054857 base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:232:8: sparse: attribute 'no_sanitize_address': unknown attribute arch/x86/kvm/lapic.c:186:15: sparse: incompatible types in comparison expression (different address spaces) arch/x86/kvm/lapic.c:963:14: sparse: undefined identifier 'APIC_DM_EXTINT' >> arch/x86/kvm/lapic.c:963:14: sparse: incompatible types for 'case' statement arch/x86/kvm/lapic.c:699:15: sparse: incompatible types in comparison expression (different address spaces) arch/x86/kvm/lapic.c:799:15: sparse: incompatible types in comparison expression (different address spaces) arch/x86/kvm/lapic.c:963:14: sparse: Expected constant expression in case statement arch/x86/kvm/lapic.c: In function '__apic_accept_irq': arch/x86/kvm/lapic.c:963:7: error: 'APIC_DM_EXTINT' undeclared (first use in this function) case APIC_DM_EXTINT: ^~~~~~~~~~~~~~ arch/x86/kvm/lapic.c:963:7: note: each undeclared identifier is reported only once for each function it appears in vim +/case +963 arch/x86/kvm/lapic.c c5ec15340 drivers/kvm/lapic.c He, Qing 2007-09-03 947 vcpu->vcpu_id); c5ec15340 drivers/kvm/lapic.c He, Qing 2007-09-03 948 } 97222cc83 drivers/kvm/lapic.c Eddie Dong 2007-09-12 949 break; 97222cc83 drivers/kvm/lapic.c Eddie Dong 2007-09-12 950 97222cc83 drivers/kvm/lapic.c Eddie Dong 2007-09-12 951 case APIC_DM_STARTUP: 1b10bf31a arch/x86/kvm/lapic.c Jan Kiszka 2008-09-30 952 apic_debug("SIPI to vcpu %d vector 0x%02x\n", c5ec15340 drivers/kvm/lapic.c He, Qing 2007-09-03 953 vcpu->vcpu_id, vector); 6da7e3f64 arch/x86/kvm/lapic.c Gleb Natapov 2009-03-05 954 result = 1; 66450a21f arch/x86/kvm/lapic.c Jan Kiszka 2013-03-13 955 apic->sipi_vector = vector; 66450a21f arch/x86/kvm/lapic.c Jan Kiszka 2013-03-13 956 /* make sure sipi_vector is visible for the receiver */ 66450a21f arch/x86/kvm/lapic.c Jan Kiszka 2013-03-13 957 smp_wmb(); 66450a21f arch/x86/kvm/lapic.c Jan Kiszka 2013-03-13 958 set_bit(KVM_APIC_SIPI, &apic->pending_events); 3842d135f arch/x86/kvm/lapic.c Avi Kivity 2010-07-27 959 kvm_make_request(KVM_REQ_EVENT, vcpu); d76901750 arch/x86/kvm/lapic.c Marcelo Tosatti 2008-09-08 960 kvm_vcpu_kick(vcpu); 97222cc83 drivers/kvm/lapic.c Eddie Dong 2007-09-12 961 break; 97222cc83 drivers/kvm/lapic.c Eddie Dong 2007-09-12 962 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 @963 case APIC_DM_EXTINT: 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 964 /* 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 965 * Should only be called by kvm_apic_local_deliver() with LVT0, 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 966 * before NMI watchdog was enabled. Already handled by 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 967 * kvm_apic_accept_pic_intr(). 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 968 */ 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 969 break; 23930f952 arch/x86/kvm/lapic.c Jan Kiszka 2008-09-26 970 97222cc83 drivers/kvm/lapic.c Eddie Dong 2007-09-12 971 default: :::::: The code at line 963 was first introduced by commit :::::: 23930f9521c9c4d4aa96cdb9d1e1703f3782bb94 KVM: x86: Enable NMI Watchdog via in-kernel PIT source :::::: TO: Jan Kiszka <jan.kiszka at siemens.com> :::::: CC: Avi Kivity <avi at redhat.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation