Hi Sam,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.3-rc1 next-20190724]
[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/Sam-Bobroff/powerpc-64-Adjust-order-in-pcibios_init/20190724-134001
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 7.4.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <l...@intel.com>

All errors (new ones prefixed by >>):

   arch/powerpc/kernel/eeh_driver.c: In function 'eeh_add_virt_device':
>> arch/powerpc/kernel/eeh_driver.c:459:17: error: unused variable 'pdn' 
>> [-Werror=unused-variable]
     struct pci_dn *pdn = eeh_dev_to_pdn(edev);
                    ^~~
   cc1: all warnings being treated as errors

vim +/pdn +459 arch/powerpc/kernel/eeh_driver.c

77bd7415 arch/powerpc/platforms/pseries/eeh_driver.c Linas Vepstas 2005-11-03  
454  
bf773df9 arch/powerpc/kernel/eeh_driver.c            Sam Bobroff   2018-09-12  
455  static void *eeh_add_virt_device(struct eeh_dev *edev)
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
456  {
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
457      struct pci_driver *driver;
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
458      struct pci_dev *dev = eeh_dev_to_pci_dev(edev);
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04 
@459      struct pci_dn *pdn = eeh_dev_to_pdn(edev);
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
460  
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
461      if (!(edev->physfn)) {
6dad7bbd arch/powerpc/kernel/eeh_driver.c            Sam Bobroff   2019-07-23  
462              eeh_edev_warn(edev, "Not for VF\n");
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
463              return NULL;
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
464      }
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
465  
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
466      driver = eeh_pcid_get(dev);
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
467      if (driver) {
46d4be41 arch/powerpc/kernel/eeh_driver.c            Sam Bobroff   2018-05-25  
468              if (driver->err_handler) {
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
469                      eeh_pcid_put(dev);
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
470                      return NULL;
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
471              }
46d4be41 arch/powerpc/kernel/eeh_driver.c            Sam Bobroff   2018-05-25  
472              eeh_pcid_put(dev);
46d4be41 arch/powerpc/kernel/eeh_driver.c            Sam Bobroff   2018-05-25  
473      }
67086e32 arch/powerpc/kernel/eeh_driver.c            Wei Yang      2016-03-04  
474  

:::::: The code at line 459 was first introduced by commit
:::::: 67086e32b56481531ab1292b284e074b1a8d764c powerpc/eeh: powerpc/eeh: 
Support error recovery for VF PE

:::::: TO: Wei Yang <weiy...@linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <m...@ellerman.id.au>

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

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