Re: [PATCH v1 5/6] vfio-pci/zdev: Perform platform specific function reset for zPCI

[kernel test robot <lkp@intel.com>]

Hi Farhan,

kernel test robot noticed the following build errors:

[auto build test ERROR on awilliam-vfio/next]
[also build test ERROR on s390/features linus/master v6.17-rc1 next-20250814]
[cannot apply to kvms390/next awilliam-vfio/for-linus]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Farhan-Ali/s390-pci-Restore-airq-unconditionally-for-the-zPCI-device/20250814-012243
base:   https://github.com/awilliam/linux-vfio.git next
patch link:    https://lore.kernel.org/r/20250813170821.1115-6-alifm%40linux.ibm.com
patch subject: [PATCH v1 5/6] vfio-pci/zdev: Perform platform specific function reset for zPCI
config: csky-randconfig-002-20250814 (https://download.01.org/0day-ci/archive/20250814/202508141518.Z82dHhVu-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250814/202508141518.Z82dHhVu-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508141518.Z82dHhVu-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from drivers/vfio/pci/vfio_pci_core.c:36:
>> drivers/vfio/pci/vfio_pci_priv.h:104:5: warning: no previous prototype for 'vfio_pci_zdev_reset' [-Wmissing-prototypes]
     104 | int vfio_pci_zdev_reset(struct vfio_pci_core_device *vdev)
         |     ^~~~~~~~~~~~~~~~~~~
--
   csky-linux-ld: drivers/vfio/pci/vfio_pci_intrs.o: in function `vfio_pci_zdev_reset':
>> drivers/vfio/pci/vfio_pci_priv.h:105: multiple definition of `vfio_pci_zdev_reset'; drivers/vfio/pci/vfio_pci_core.o:(.text+0x1a6c): first defined here
   csky-linux-ld: drivers/vfio/pci/vfio_pci_rdwr.o: in function `vfio_pci_zdev_reset':
>> drivers/vfio/pci/vfio_pci_priv.h:105: multiple definition of `vfio_pci_zdev_reset'; drivers/vfio/pci/vfio_pci_core.o:(.text+0x1a6c): first defined here
   csky-linux-ld: drivers/vfio/pci/vfio_pci_config.o: in function `vfio_pci_zdev_reset':
   (.text+0x1964): multiple definition of `vfio_pci_zdev_reset'; drivers/vfio/pci/vfio_pci_core.o:(.text+0x1a6c): first defined here


vim +105 drivers/vfio/pci/vfio_pci_priv.h

   101	
   102	static inline void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
   103	{}
 > 104	int vfio_pci_zdev_reset(struct vfio_pci_core_device *vdev)
 > 105	{
   106		return -ENODEV;
   107	}
   108	#endif
   109	

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