Hi Stanimir,

[auto build test ERROR on: v4.4-rc2]
[also build test ERROR on: next-20151123]

url:    
https://github.com/0day-ci/linux/commits/Stanimir-Varbanov/Qualcomm-PCIe-driver-and-designware-fixes/20151123-173312
config: i386-allmodconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/pci/host/pcie-designware.c: In function 'dw_pcie_host_init':
>> drivers/pci/host/pcie-designware.c:559:7: error: implicit declaration of 
>> function 'pci_has_flag' [-Werror=implicit-function-declaration]
     if (!pci_has_flag(PCI_PROBE_ONLY)) {
          ^
>> drivers/pci/host/pcie-designware.c:559:20: error: 'PCI_PROBE_ONLY' 
>> undeclared (first use in this function)
     if (!pci_has_flag(PCI_PROBE_ONLY)) {
                       ^
   drivers/pci/host/pcie-designware.c:559:20: note: each undeclared identifier 
is reported only once for each function it appears in
   cc1: some warnings being treated as errors

vim +/pci_has_flag +559 drivers/pci/host/pcie-designware.c

cbce7900 Zhou Wang   2015-10-29  543                                        
&dw_pcie_msi_chip);
0815f957 Yijing Wang 2014-11-11  544            dw_pcie_msi_chip.dev = pp->dev;
cbce7900 Zhou Wang   2015-10-29  545    } else
cbce7900 Zhou Wang   2015-10-29  546            bus = 
pci_scan_root_bus(pp->dev, pp->root_bus_nr, &dw_pcie_ops,
cbce7900 Zhou Wang   2015-10-29  547                                    pp, 
&res);
cbce7900 Zhou Wang   2015-10-29  548    if (!bus)
cbce7900 Zhou Wang   2015-10-29  549            return -ENOMEM;
cbce7900 Zhou Wang   2015-10-29  550  
cbce7900 Zhou Wang   2015-10-29  551    if (pp->ops->scan_bus)
cbce7900 Zhou Wang   2015-10-29  552            pp->ops->scan_bus(pp);
cbce7900 Zhou Wang   2015-10-29  553  
cbce7900 Zhou Wang   2015-10-29  554  #ifdef CONFIG_ARM
cbce7900 Zhou Wang   2015-10-29  555    /* support old dtbs that incorrectly 
describe IRQs */
cbce7900 Zhou Wang   2015-10-29  556    pci_fixup_irqs(pci_common_swizzle, 
of_irq_parse_and_map_pci);
0815f957 Yijing Wang 2014-11-11  557  #endif
0815f957 Yijing Wang 2014-11-11  558  
cbce7900 Zhou Wang   2015-10-29 @559    if (!pci_has_flag(PCI_PROBE_ONLY)) {
cbce7900 Zhou Wang   2015-10-29  560            pci_bus_size_bridges(bus);
cbce7900 Zhou Wang   2015-10-29  561            pci_bus_assign_resources(bus);
4b1ced84 Jingoo Han  2013-07-31  562  
cbce7900 Zhou Wang   2015-10-29  563            list_for_each_entry(child, 
&bus->children, node)
cbce7900 Zhou Wang   2015-10-29  564                    
pcie_bus_configure_settings(child);
cbce7900 Zhou Wang   2015-10-29  565    }
4b1ced84 Jingoo Han  2013-07-31  566  
cbce7900 Zhou Wang   2015-10-29  567    pci_bus_add_devices(bus);

:::::: The code at line 559 was first introduced by commit
:::::: cbce7900598c26a12652f8ca9c41c5b29034c38d PCI: designware: Make driver 
arch-agnostic

:::::: TO: Zhou Wang <wangzh...@hisilicon.com>
:::::: CC: Bjorn Helgaas <bhelg...@google.com>

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

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