[yiliu1765-iommufd:wip/iommufd_pasid-20240714 22/22] drivers/vfio/pci/vfio_pci_config.c:1518:1: warning: 'vfio_fill_customized_vconfig_bytes' defined but not used

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

tree:   https://github.com/yiliu1765/iommufd.git wip/iommufd_pasid-20240714
head:   d39032654710dfe496616b6df763fa99ba89021d
commit: d39032654710dfe496616b6df763fa99ba89021d [22/22] vfio/pci: Report PASID capability to userspace
config: i386-randconfig-014-20240714 (https://download.01.org/0day-ci/archive/20240715/202407150308.HCG5GIBX-lkp@intel.com/config)
compiler: gcc-10 (Ubuntu 10.5.0-1ubuntu1) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240715/202407150308.HCG5GIBX-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/202407150308.HCG5GIBX-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/vfio/pci/vfio_pci_config.c:1518:1: warning: 'vfio_fill_customized_vconfig_bytes' defined but not used [-Wunused-function]
    1518 | vfio_fill_customized_vconfig_bytes(struct vfio_pci_core_device *vdev,
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/vfio_fill_customized_vconfig_bytes +1518 drivers/vfio/pci/vfio_pci_config.c

  1515	
  1516	/* Fill data to vconfig */
  1517	static void
> 1518	vfio_fill_customized_vconfig_bytes(struct vfio_pci_core_device *vdev,
  1519					   int offset, uint8_t *data, int size)
  1520	{
  1521		int filled = 0;
  1522	
  1523		while (size) {
  1524			if (size >= 4 && !(offset % 4)) {
  1525				__le32 *dwordp = (__le32 *)&vdev->vconfig[offset];
  1526				u32 dword;
  1527	
  1528				memcpy(&dword, data + filled, 4);
  1529				*dwordp = cpu_to_le32(dword);
  1530				filled = 4;
  1531			} else if (size >= 2 && !(offset % 2)) {
  1532				__le16 *wordp = (__le16 *)&vdev->vconfig[offset];
  1533				u16 word;
  1534	
  1535				memcpy(&word, data + filled, 2);
  1536				*wordp = cpu_to_le16(word);
  1537				filled = 2;
  1538			} else {
  1539				u8 *byte = &vdev->vconfig[offset];
  1540	
  1541				memcpy(byte, data + filled, 1);
  1542				filled = 1;
  1543			}
  1544	
  1545			offset += filled;
  1546			size -= filled;
  1547		}
  1548	}
  1549	

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