Re: [PATCH] regulator: userspace-consumer: Retrieve supplies from DT

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

Hi Naresh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 451e85e29c9d6f20639d4cfcff4b9dea280178cc]

url:    https://github.com/intel-lab-lkp/linux/commits/Naresh-Solanki/regulator-userspace-consumer-Retrieve-supplies-from-DT/20230919-141840
base:   451e85e29c9d6f20639d4cfcff4b9dea280178cc
patch link:    https://lore.kernel.org/r/20230919061755.3412016-1-naresh.solanki%409elements.com
patch subject: [PATCH] regulator: userspace-consumer: Retrieve supplies from DT
config: i386-randconfig-014-20230919 (https://download.01.org/0day-ci/archive/20230919/202309192318.EFnp91Rd-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230919/202309192318.EFnp91Rd-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/202309192318.EFnp91Rd-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/regulator/userspace-consumer.c: In function 'get_num_supplies':
   drivers/regulator/userspace-consumer.c:126:9: error: implicit declaration of function 'for_each_property_of_node'; did you mean 'for_each_child_of_node'? [-Werror=implicit-function-declaration]
     126 |         for_each_property_of_node(pdev->dev.of_node, prop) {
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
         |         for_each_child_of_node
   drivers/regulator/userspace-consumer.c:126:59: error: expected ';' before '{' token
     126 |         for_each_property_of_node(pdev->dev.of_node, prop) {
         |                                                           ^~
         |                                                           ;
>> drivers/regulator/userspace-consumer.c:124:13: warning: unused variable 'num_supplies' [-Wunused-variable]
     124 |         int num_supplies = 0;
         |             ^~~~~~~~~~~~
   drivers/regulator/userspace-consumer.c:136:1: error: no return statement in function returning non-void [-Werror=return-type]
     136 | }
         | ^
   drivers/regulator/userspace-consumer.c: In function 'regulator_userspace_consumer_probe':
   drivers/regulator/userspace-consumer.c:162:67: error: expected ';' before '{' token
     162 |                 for_each_property_of_node(pdev->dev.of_node, prop) {
         |                                                                   ^~
         |                                                                   ;
   cc1: some warnings being treated as errors


vim +/num_supplies +124 drivers/regulator/userspace-consumer.c

   120	
   121	static int get_num_supplies(struct platform_device *pdev)
   122	{
   123		struct  property *prop;
 > 124		int num_supplies = 0;
   125	
   126		for_each_property_of_node(pdev->dev.of_node, prop) {
   127			const char *prop_name = prop->name;
   128			int len = strlen(prop_name);
   129	
   130			if (len > SUPPLY_SUFFIX_LEN &&
   131			    strcmp(prop_name + len - SUPPLY_SUFFIX_LEN, SUPPLY_SUFFIX) == 0) {
   132				num_supplies++;
   133			}
   134		}
   135		return num_supplies;
   136	}
   137	

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