linux-kernel - Re: [PATCH v3 7/7] iio: accel: kx022a: align with subsystem way

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Message-ID: <202411290107.KXHPQXRf-lkp@intel.com>
Date: Fri, 29 Nov 2024 01:20:41 +0800
From: kernel test robot <lkp@...el.com>
To: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
	Matti Vaittinen <mazziesaccount@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 7/7] iio: accel: kx022a: align with subsystem way

Hi Matti,

kernel test robot noticed the following build warnings:

[auto build test WARNING on a61ff7eac77e86de828fe28c4e42b8ae9ec2b195]

url:    https://github.com/intel-lab-lkp/linux/commits/Matti-Vaittinen/iio-accel-kx022a-Use-cleanup-h-helpers/20241128-170626
base:   a61ff7eac77e86de828fe28c4e42b8ae9ec2b195
patch link:    https://lore.kernel.org/r/9b63813ecf10b1cd0126cb950bc09514c4287b9a.1732783834.git.mazziesaccount%40gmail.com
patch subject: [PATCH v3 7/7] iio: accel: kx022a: align with subsystem way
config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20241129/202411290107.KXHPQXRf-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241129/202411290107.KXHPQXRf-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411290107.KXHPQXRf-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/iio/accel/kionix-kx022a.c: In function 'kx022a_write_raw':
   drivers/iio/accel/kionix-kx022a.c:507:9: error: implicit declaration of function 'if_not_cond_guard' [-Wimplicit-function-declaration]
     507 |         if_not_cond_guard(iio_claim_direct_try, idev)
         |         ^~~~~~~~~~~~~~~~~
   drivers/iio/accel/kionix-kx022a.c:507:27: error: 'iio_claim_direct_try' undeclared (first use in this function); did you mean 'class_iio_claim_direct_try_t'?
     507 |         if_not_cond_guard(iio_claim_direct_try, idev)
         |                           ^~~~~~~~~~~~~~~~~~~~
         |                           class_iio_claim_direct_try_t
   drivers/iio/accel/kionix-kx022a.c:507:27: note: each undeclared identifier is reported only once for each function it appears in
   drivers/iio/accel/kionix-kx022a.c:507:54: error: expected ';' before 'return'
     507 |         if_not_cond_guard(iio_claim_direct_try, idev)
         |                                                      ^
         |                                                      ;
     508 |                 return -EBUSY;
         |                 ~~~~~~                                
   In file included from drivers/iio/accel/kionix-kx022a.c:8:
>> include/linux/cleanup.h:308:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
     308 |         for (CLASS(_name, scope)(args),                                 \
         |         ^~~
   drivers/iio/accel/kionix-kx022a.c:521:17: note: in expansion of macro 'scoped_guard'
     521 |                 scoped_guard(mutex, &data->mutex) {
         |                 ^~~~~~~~~~~~
   drivers/iio/accel/kionix-kx022a.c:532:9: note: here
     532 |         case IIO_CHAN_INFO_SCALE:
         |         ^~~~


vim +308 include/linux/cleanup.h

e4ab322fbaaaf8 Peter Zijlstra 2023-09-17  306  
54da6a0924311c Peter Zijlstra 2023-05-26  307  #define scoped_guard(_name, args...)					\
54da6a0924311c Peter Zijlstra 2023-05-26 @308  	for (CLASS(_name, scope)(args),					\
e4ab322fbaaaf8 Peter Zijlstra 2023-09-17  309  	     *done = NULL; __guard_ptr(_name)(&scope) && !done; done = (void *)1)
e4ab322fbaaaf8 Peter Zijlstra 2023-09-17  310  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki