[linux-next:master 10159/11535] drivers/power/sequencing/pwrseq-pcie-m2.c:193:12: warning: assignment to 'struct device_node *' from 'int' makes pointer from integer without a cast

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   cc13002a9f984d37906e9476f3e532a8cdd126f5
commit: 3f736aecbdc8e4faf2ed82c981812a6bfc76ea98 [10159/11535] power: sequencing: pcie-m2: Create serdev device for WCN7850 bluetooth
config: sh-randconfig-001-20260403 (https://download.01.org/0day-ci/archive/20260403/202604031945.bEYKHUme-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260403/202604031945.bEYKHUme-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/202604031945.bEYKHUme-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/power/sequencing/pwrseq-pcie-m2.c: In function 'pwrseq_m2_pcie_create_bt_node':
   drivers/power/sequencing/pwrseq-pcie-m2.c:191:9: error: implicit declaration of function 'of_changeset_init' [-Werror=implicit-function-declaration]
     191 |         of_changeset_init(ctx->ocs);
         |         ^~~~~~~~~~~~~~~~~
   drivers/power/sequencing/pwrseq-pcie-m2.c:193:14: error: implicit declaration of function 'of_changeset_create_node' [-Werror=implicit-function-declaration]
     193 |         np = of_changeset_create_node(ctx->ocs, parent, "bluetooth");
         |              ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/power/sequencing/pwrseq-pcie-m2.c:193:12: warning: assignment to 'struct device_node *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     193 |         np = of_changeset_create_node(ctx->ocs, parent, "bluetooth");
         |            ^
   drivers/power/sequencing/pwrseq-pcie-m2.c:200:15: error: implicit declaration of function 'of_changeset_add_prop_string' [-Werror=implicit-function-declaration]
     200 |         ret = of_changeset_add_prop_string(ctx->ocs, np, "compatible", "qcom,wcn7850-bt");
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/power/sequencing/pwrseq-pcie-m2.c:206:15: error: implicit declaration of function 'of_changeset_apply' [-Werror=implicit-function-declaration]
     206 |         ret = of_changeset_apply(ctx->ocs);
         |               ^~~~~~~~~~~~~~~~~~
   drivers/power/sequencing/pwrseq-pcie-m2.c:221:9: error: implicit declaration of function 'of_changeset_revert' [-Werror=implicit-function-declaration]
     221 |         of_changeset_revert(ctx->ocs);
         |         ^~~~~~~~~~~~~~~~~~~
   drivers/power/sequencing/pwrseq-pcie-m2.c:223:9: error: implicit declaration of function 'of_changeset_destroy' [-Werror=implicit-function-declaration]
     223 |         of_changeset_destroy(ctx->ocs);
         |         ^~~~~~~~~~~~~~~~~~~~
   drivers/power/sequencing/pwrseq-pcie-m2.c: In function 'pwrseq_pcie_m2_register_notifier':
   drivers/power/sequencing/pwrseq-pcie-m2.c:368:54: error: 'pci_bus_type' undeclared (first use in this function); did you mean 'pci_pcie_type'?
     368 |                         ret = bus_register_notifier(&pci_bus_type, &ctx->nb);
         |                                                      ^~~~~~~~~~~~
         |                                                      pci_pcie_type
   drivers/power/sequencing/pwrseq-pcie-m2.c:368:54: note: each undeclared identifier is reported only once for each function it appears in
   drivers/power/sequencing/pwrseq-pcie-m2.c: In function 'pwrseq_pcie_m2_remove':
   drivers/power/sequencing/pwrseq-pcie-m2.c:455:34: error: 'pci_bus_type' undeclared (first use in this function); did you mean 'pci_pcie_type'?
     455 |         bus_unregister_notifier(&pci_bus_type, &ctx->nb);
         |                                  ^~~~~~~~~~~~
         |                                  pci_pcie_type
   cc1: some warnings being treated as errors


vim +193 drivers/power/sequencing/pwrseq-pcie-m2.c

   179	
   180	static int pwrseq_m2_pcie_create_bt_node(struct pwrseq_pcie_m2_ctx *ctx,
   181						struct device_node *parent)
   182	{
   183		struct device *dev = ctx->dev;
   184		struct device_node *np;
   185		int ret;
   186	
   187		ctx->ocs = kzalloc_obj(*ctx->ocs);
   188		if (!ctx->ocs)
   189			return -ENOMEM;
   190	
   191		of_changeset_init(ctx->ocs);
   192	
 > 193		np = of_changeset_create_node(ctx->ocs, parent, "bluetooth");
   194		if (!np) {
   195			dev_err(dev, "Failed to create bluetooth node\n");
   196			ret = -ENODEV;
   197			goto err_destroy_changeset;
   198		}
   199	
   200		ret = of_changeset_add_prop_string(ctx->ocs, np, "compatible", "qcom,wcn7850-bt");
   201		if (ret) {
   202			dev_err(dev, "Failed to add bluetooth compatible: %d\n", ret);
   203			goto err_destroy_changeset;
   204		}
   205	
   206		ret = of_changeset_apply(ctx->ocs);
   207		if (ret) {
   208			dev_err(dev, "Failed to apply changeset: %d\n", ret);
   209			goto err_destroy_changeset;
   210		}
   211	
   212		ret = device_add_of_node(&ctx->serdev->dev, np);
   213		if (ret) {
   214			dev_err(dev, "Failed to add OF node: %d\n", ret);
   215			goto err_revert_changeset;
   216		}
   217	
   218		return 0;
   219	
   220	err_revert_changeset:
   221		of_changeset_revert(ctx->ocs);
   222	err_destroy_changeset:
   223		of_changeset_destroy(ctx->ocs);
   224		kfree(ctx->ocs);
   225		ctx->ocs = NULL;
   226	
   227		return ret;
   228	}
   229	

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