[linux-next:master 11796/12477] drivers/of/unittest.c:3763:14: error: 'overlays' undeclared

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   2b3bd393093b04d4882152398019cbb96b0440ff
commit: 26409dd045892904b059dc411403e9c8ce7543ca [11796/12477] of: unittest: Add pci_dt_testdrv pci driver
config: x86_64-randconfig-r033-20230824 (https://download.01.org/0day-ci/archive/20230824/202308241954.oRNfVqmB-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230824/202308241954.oRNfVqmB-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/202308241954.oRNfVqmB-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/of/unittest.c: In function 'testdrv_probe':
>> drivers/of/unittest.c:3763:14: error: 'overlays' undeclared (first use in this function)
    3763 |  for (info = overlays; info && info->name; info++) {
         |              ^~~~~~~~
   drivers/of/unittest.c:3763:14: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/of/unittest.c:3763:36: error: dereferencing pointer to incomplete type 'struct overlay_info'
    3763 |  for (info = overlays; info && info->name; info++) {
         |                                    ^~
>> drivers/of/unittest.c:3763:48: error: increment of pointer to an incomplete type 'struct overlay_info'
    3763 |  for (info = overlays; info && info->name; info++) {
         |                                                ^~
>> drivers/of/unittest.c:3773:8: error: too many arguments to function 'of_overlay_fdt_apply'
    3773 |  ret = of_overlay_fdt_apply(info->dtbo_begin, size, &ovcs_id, dn);
         |        ^~~~~~~~~~~~~~~~~~~~
   In file included from drivers/of/unittest.c:15:
   include/linux/of.h:1679:19: note: declared here
    1679 | static inline int of_overlay_fdt_apply(void *overlay_fdt, u32 overlay_fdt_size,
         |                   ^~~~~~~~~~~~~~~~~~~~


vim +/overlays +3763 drivers/of/unittest.c

  3749	
  3750	static int testdrv_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  3751	{
  3752		struct overlay_info *info;
  3753		struct device_node *dn;
  3754		int ret, ovcs_id;
  3755		u32 size;
  3756	
  3757		dn = pdev->dev.of_node;
  3758		if (!dn) {
  3759			dev_err(&pdev->dev, "does not find bus endpoint");
  3760			return -EINVAL;
  3761		}
  3762	
> 3763		for (info = overlays; info && info->name; info++) {
  3764			if (!strcmp(info->name, "overlay_pci_node"))
  3765				break;
  3766		}
  3767		if (!info || !info->name) {
  3768			dev_err(&pdev->dev, "no overlay data for overlay_pci_node");
  3769			return -ENODEV;
  3770		}
  3771	
  3772		size = info->dtbo_end - info->dtbo_begin;
> 3773		ret = of_overlay_fdt_apply(info->dtbo_begin, size, &ovcs_id, dn);
  3774		of_node_put(dn);
  3775		if (ret)
  3776			return ret;
  3777	
  3778		of_platform_default_populate(dn, NULL, &pdev->dev);
  3779		pci_set_drvdata(pdev, (void *)(uintptr_t)ovcs_id);
  3780	
  3781		return 0;
  3782	}
  3783	

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