Hi Joao,

[auto build test ERROR on arc/for-next]
[also build test ERROR on v4.4-rc3 next-20151203]

url:    
https://github.com/0day-ci/linux/commits/Joao-Pinto/adding-PCI-support-to-AXS10x/20151124-223533
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc for-next
config: sparc-allmodconfig (attached as .config)
reproduce:
        wget 
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
 -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   drivers/pci/host/pcie-designware.c: In function 'dw_pcie_host_init':
>> drivers/pci/host/pcie-designware.c:431:2: error: implicit declaration of 
>> function 'of_pci_get_host_bridge_resources' 
>> [-Werror=implicit-function-declaration]
     ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &pp->io_base);
     ^
   drivers/pci/host/pcie-designware.c:561:2: 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:561:20: error: 'PCI_PROBE_ONLY' 
undeclared (first use in this function)
     if (!pci_has_flag(PCI_PROBE_ONLY)) {
                       ^
   drivers/pci/host/pcie-designware.c:561:20: note: each undeclared identifier 
is reported only once for each function it appears in
   cc1: some warnings being treated as errors

vim +/of_pci_get_host_bridge_resources +431 drivers/pci/host/pcie-designware.c

4dd964df Kishon Vijay Abraham I 2014-07-17  425                 pp->cfg0_base = 
cfg_res->start;
adf70fc0 Pratyush Anand         2014-09-05  426                 pp->cfg1_base = 
cfg_res->start + pp->cfg0_size;
0f414212 Murali Karicheri       2015-07-21  427         } else if 
(!pp->va_cfg0_base) {
4dd964df Kishon Vijay Abraham I 2014-07-17  428                 
dev_err(pp->dev, "missing *config* reg space\n");
4dd964df Kishon Vijay Abraham I 2014-07-17  429         }
4dd964df Kishon Vijay Abraham I 2014-07-17  430  
0021d22b Zhou Wang              2015-10-29 @431         ret = 
of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &pp->io_base);
0021d22b Zhou Wang              2015-10-29  432         if (ret)
0021d22b Zhou Wang              2015-10-29  433                 return ret;
4b1ced84 Jingoo Han             2013-07-31  434  

:::::: The code at line 431 was first introduced by commit
:::::: 0021d22b73d69f2121b89987a94d5ef5c4e14271 PCI: designware: Use 
of_pci_get_host_bridge_resources() to parse DT

:::::: TO: Zhou Wang <[email protected]>
:::::: CC: Bjorn Helgaas <[email protected]>

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

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