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

2015-12-09 Thread kbuild test robot 
Hi Jake,

[auto build test WARNING on pci/next]
[also build test WARNING 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-allmodconfig (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   include/linux/compiler.h:228:8: sparse: attribute 'no_sanitize_address': 
unknown attribute
   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 +/length +1776 drivers/pci/host/hv_pcifront.c

  1760  hbus->high_mmio_res->flags |= IORESOURCE_BUSY;
  1761  release_mem_region(hbus->high_mmio_res->start,
  1762 resource_size(hbus->high_mmio_res));
  1763  }
  1764  }
  1765  
  1766  /**
  1767   * hv_pci_allocate_bridge_windows() - Allocate memory regions
  1768   * for the bus
  1769   * @hbus:   Root PCI bus, as understood by this driver
  1770   *
  1771   * Return: 0 on success, -errno on failure
  1772   */
  1773  static int hv_pci_allocate_bridge_windows(struct hv_pcibus_device *hbus)
  1774  {
  1775  resource_size_t align;
> 1776  resource_size_t length;
  1777  int ret;
  1778  
  1779  if (hbus->low_mmio_space) {
  1780  align = 1ULL << (63 - 
__builtin_clzll(hbus->low_mmio_space));
  1781  ret = vmbus_allocate_mmio(>low_mmio_res, 
hbus->hdev, 0,
  1782  0xULL,
  1783  
(resource_size_t)hbus->low_mmio_space,
  1784  align, false);

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

2015-12-09 Thread kbuild test robot 
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 *)
   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

---
0-DAY kernel test infrastructureOpen Source Technology Center
https://lists.01.org/pipermail/kbuild-all   Intel Corporation


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