Re: [PATCH v9 7/7] PCI: hv: New paravirtual PCI front-end for Hyper-V VMs

From: kbuild test robot
Date: Thu Dec 10 2015 - 02:25:40 EST


Hi Jake,

[auto build test ERROR on pci/next]
[also build test ERROR on v4.4-rc4 next-20151209]

url: https://github.com/0day-ci/linux/commits/jakeo-microsoft-com/PCI-hv-New-paravirtual-PCI-front-end-for-Hyper-V-VMs/20151210-070027
base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: x86_64-randconfig-x006-12100835 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

drivers/pci/host/hv_pcifront.c: In function 'hv_compose_msi_msg':
>> drivers/pci/host/hv_pcifront.c:830:4: error: 'apic' undeclared (first use in this function)
(apic->irq_delivery_mode == dest_LowestPrio) ? 1 : 0;
^
drivers/pci/host/hv_pcifront.c:830:4: note: each undeclared identifier is reported only once for each function it appears in
drivers/pci/host/hv_pcifront.c: In function 'hv_pci_allocate_bridge_windows':
drivers/pci/host/hv_pcifront.c:1776:18: warning: unused variable 'length' [-Wunused-variable]
resource_size_t length;
^

vim +/apic +830 drivers/pci/host/hv_pcifront.c

824 int_pkt = (struct pci_create_interrupt *)&ctxt.pkt.message;
825 int_pkt->message_type.message_type = PCI_CREATE_INTERRUPT_MESSAGE;
826 int_pkt->wslot.slot = hpdev->desc.win_slot.slot;
827 int_pkt->int_desc.vector = cfg->vector;
828 int_pkt->int_desc.vector_count = 1;
829 int_pkt->int_desc.delivery_mode =
> 830 (apic->irq_delivery_mode == dest_LowestPrio) ? 1 : 0;
831
832 /*
833 * This bit doesn't have to work on machines with more than 64

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