Re: [PATCH v2] iio: adc: ad7380: use if_not_cond_guard for claim direct

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

Hi David,

kernel test robot noticed the following build errors:

[auto build test ERROR on 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e]

url:    https://github.com/intel-lab-lkp/linux/commits/David-Lechner/iio-adc-ad7380-use-if_not_cond_guard-for-claim-direct/20241025-001415
base:   431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e
patch link:    https://lore.kernel.org/r/20241024-cleanup-if_not_cond_guard-v2-1-1bef98c9fd2e%40baylibre.com
patch subject: [PATCH v2] iio: adc: ad7380: use if_not_cond_guard for claim direct
config: arm-randconfig-001-20241027 (https://download.01.org/0day-ci/archive/20241027/202410271212.2EFjrzX0-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 5886454669c3c9026f7f27eab13509dd0241f2d6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241027/202410271212.2EFjrzX0-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/202410271212.2EFjrzX0-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/iio/adc/ad7380.c:27:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/iio/adc/ad7380.c:574:2: error: call to undeclared function 'if_not_cond_guard'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     574 |         if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |         ^
>> drivers/iio/adc/ad7380.c:574:52: error: expected ';' after expression
     574 |         if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                                                           ^
         |                                                           ;
>> drivers/iio/adc/ad7380.c:574:20: error: use of undeclared identifier 'iio_claim_direct_try'
     574 |         if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                           ^
   drivers/iio/adc/ad7380.c:823:3: error: call to undeclared function 'if_not_cond_guard'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     823 |                 if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                 ^
   drivers/iio/adc/ad7380.c:823:53: error: expected ';' after expression
     823 |                 if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                                                                   ^
         |                                                                   ;
   drivers/iio/adc/ad7380.c:823:21: error: use of undeclared identifier 'iio_claim_direct_try'
     823 |                 if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                                   ^
   drivers/iio/adc/ad7380.c:912:3: error: call to undeclared function 'if_not_cond_guard'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     912 |                 if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                 ^
   drivers/iio/adc/ad7380.c:912:53: error: expected ';' after expression
     912 |                 if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                                                                   ^
         |                                                                   ;
   drivers/iio/adc/ad7380.c:912:21: error: use of undeclared identifier 'iio_claim_direct_try'
     912 |                 if_not_cond_guard(iio_claim_direct_try, indio_dev)
         |                                   ^
   1 warning and 9 errors generated.


vim +/if_not_cond_guard +574 drivers/iio/adc/ad7380.c

   568	
   569	static int ad7380_debugfs_reg_access(struct iio_dev *indio_dev, u32 reg,
   570					     u32 writeval, u32 *readval)
   571	{
   572		struct ad7380_state *st = iio_priv(indio_dev);
   573	
 > 574		if_not_cond_guard(iio_claim_direct_try, indio_dev)
   575			return -EBUSY;
   576	
   577		if (readval)
   578			return regmap_read(st->regmap, reg, readval);
   579	
   580		return regmap_write(st->regmap, reg, writeval);
   581	}
   582	

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