Re: [PATCH 3/3] x86/apic: Clean up the apic delivery mode macro definition

From: kbuild test robot
Date: Sat Jul 23 2016 - 19:09:06 EST


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@xxxxxxxxxxx>
:::::: CC: Avi Kivity <avi@xxxxxxxxxx>

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