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From: kernel test robot <lkp@intel.com>
To: Nikhil Gautam <nikhilgtr@gmail.com>, linux-iio@vger.kernel.org
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	jic23@kernel.org, dlechner@baylibre.com, nuno.sa@analog.com,
	andy@kernel.org, linux-kernel@vger.kernel.org,
	Nikhil Gautam <nikhilgtr@gmail.com>
Subject: Re: [PATCH] iio: chemical: ccs811: Make sampling frequency configurable
Date: Mon, 19 Oct 2026 15:26:00 +0800	[thread overview]
Message-ID: <202610191533.IG7DYuci-lkp@intel.com> (raw)
In-Reply-To: <20261018170013.79443-1-nikhilgtr@gmail.com>

Hi Nikhil,

kernel test robot noticed the following build errors:

[auto build test ERROR on jic23-iio/togreg]
[also build test ERROR on linus/master v7.3 next-20261016]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Nikhil-Gautam/iio-chemical-ccs811-Make-sampling-frequency-configurable/20261018-223013
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link:    https://lore.kernel.org/r/20261018170013.79443-1-nikhilgtr%40gmail.com
patch subject: [PATCH] iio: chemical: ccs811: Make sampling frequency configurable
config: i386-buildonly-randconfig-1003-20261019 (https://download.01.org/0day-ci/archive/20261019/202610191533.IG7DYuci-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261019/202610191533.IG7DYuci-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/202610191533.IG7DYuci-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/iio/chemical/ccs811.c:389:2: error: cannot jump from switch statement to this case label
     389 |         default:
         |         ^
   drivers/iio/chemical/ccs811.c:371:3: note: jump bypasses initialization of variable with __attribute__((cleanup))
     371 |                 guard(mutex)(&data->lock);
         |                 ^
   include/linux/cleanup.h:423:2: note: expanded from macro 'guard'
     423 |         CLASS(_name, __UNIQUE_ID(guard))
         |         ^
   include/linux/cleanup.h:303:3: note: expanded from macro 'CLASS'
     303 |                 class_##_name##_constructor
         |                 ^
   <scratch space>:136:1: note: expanded from here
     136 | class_mutex_constructor
         | ^
   note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/compiler_types.h:16:23: note: expanded from macro '__PASTE'
      16 | #define __PASTE(a, b) ___PASTE(a, b)
         |                       ^
   include/linux/compiler_types.h:15:24: note: expanded from macro '___PASTE'
      15 | #define ___PASTE(a, b) a##b
         |                        ^
   <scratch space>:142:1: note: expanded from here
     142 | __UNIQUE_ID_unlock_406
         | ^
   drivers/iio/chemical/ccs811.c:371:3: note: jump bypasses initialization of variable with __attribute__((cleanup))
   include/linux/cleanup.h:423:15: note: expanded from macro 'guard'
     423 |         CLASS(_name, __UNIQUE_ID(guard))
         |                      ^
   include/linux/compiler.h:165:2: note: expanded from macro '__UNIQUE_ID'
     165 |         __PASTE(__UNIQUE_ID_,                                   \
         |         ^
   include/linux/compiler_types.h:16:23: note: expanded from macro '__PASTE'
      16 | #define __PASTE(a, b) ___PASTE(a, b)
         |                       ^
   include/linux/compiler_types.h:15:24: note: expanded from macro '___PASTE'
      15 | #define ___PASTE(a, b) a##b
         |                        ^
   <scratch space>:130:1: note: expanded from here
     130 | __UNIQUE_ID_guard_405
         | ^
   1 error generated.


vim +389 drivers/iio/chemical/ccs811.c

1a2cae129fb93c Nikhil Gautam            2026-10-18  325  
fef6da136ef283 Jonathan Cameron         2025-03-31  326  static int ccs811_read_raw(struct iio_dev *indio_dev,
fef6da136ef283 Jonathan Cameron         2025-03-31  327  			   struct iio_chan_spec const *chan,
fef6da136ef283 Jonathan Cameron         2025-03-31  328  			   int *val, int *val2, long mask)
fef6da136ef283 Jonathan Cameron         2025-03-31  329  {
fef6da136ef283 Jonathan Cameron         2025-03-31  330  	struct ccs811_data *data = iio_priv(indio_dev);
fef6da136ef283 Jonathan Cameron         2025-03-31  331  	int ret;
fef6da136ef283 Jonathan Cameron         2025-03-31  332  
fef6da136ef283 Jonathan Cameron         2025-03-31  333  	switch (mask) {
fef6da136ef283 Jonathan Cameron         2025-03-31  334  	case IIO_CHAN_INFO_RAW:
e9786c540804c3 Jonathan Cameron         2025-03-31  335  		if (!iio_device_claim_direct(indio_dev))
e9786c540804c3 Jonathan Cameron         2025-03-31  336  			return -EBUSY;
fef6da136ef283 Jonathan Cameron         2025-03-31  337  
fef6da136ef283 Jonathan Cameron         2025-03-31  338  		ret = ccs811_read_info_raw(data, chan, val, mask);
fef6da136ef283 Jonathan Cameron         2025-03-31  339  
e9786c540804c3 Jonathan Cameron         2025-03-31  340  		iio_device_release_direct(indio_dev);
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  341  
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  342  		return ret;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  343  
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  344  	case IIO_CHAN_INFO_SCALE:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  345  		switch (chan->type) {
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  346  		case IIO_VOLTAGE:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  347  			*val = 1;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  348  			*val2 = 612903;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  349  			return IIO_VAL_INT_PLUS_MICRO;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  350  		case IIO_CURRENT:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  351  			*val = 0;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  352  			*val2 = 1000;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  353  			return IIO_VAL_INT_PLUS_MICRO;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  354  		case IIO_CONCENTRATION:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  355  			switch (chan->channel2) {
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  356  			case IIO_MOD_CO2:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  357  				*val = 0;
8f114acd4e1a9c Narcisa Ana Maria Vasile 2017-12-06  358  				*val2 = 100;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  359  				return IIO_VAL_INT_PLUS_MICRO;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  360  			case IIO_MOD_VOC:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  361  				*val = 0;
8f114acd4e1a9c Narcisa Ana Maria Vasile 2017-12-06  362  				*val2 = 100;
8f114acd4e1a9c Narcisa Ana Maria Vasile 2017-12-06  363  				return IIO_VAL_INT_PLUS_NANO;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  364  			default:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  365  				return -EINVAL;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  366  			}
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  367  		default:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  368  			return -EINVAL;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  369  		}
1a2cae129fb93c Nikhil Gautam            2026-10-18  370  	case IIO_CHAN_INFO_SAMP_FREQ:
1a2cae129fb93c Nikhil Gautam            2026-10-18  371  		guard(mutex)(&data->lock);
1a2cae129fb93c Nikhil Gautam            2026-10-18  372  		switch (data->drive_mode) {
1a2cae129fb93c Nikhil Gautam            2026-10-18  373  		case CCS811_MODE_IAQ_1SEC:
1a2cae129fb93c Nikhil Gautam            2026-10-18  374  			*val = 1;
1a2cae129fb93c Nikhil Gautam            2026-10-18  375  			*val2 = 0;
1a2cae129fb93c Nikhil Gautam            2026-10-18  376  			return IIO_VAL_INT_PLUS_MICRO;
1a2cae129fb93c Nikhil Gautam            2026-10-18  377  		case CCS811_MODE_IAQ_10SEC:
1a2cae129fb93c Nikhil Gautam            2026-10-18  378  			*val = 0;
1a2cae129fb93c Nikhil Gautam            2026-10-18  379  			*val2 = 100000;
1a2cae129fb93c Nikhil Gautam            2026-10-18  380  			return IIO_VAL_INT_PLUS_MICRO;
1a2cae129fb93c Nikhil Gautam            2026-10-18  381  		case CCS811_MODE_IAQ_60SEC:
1a2cae129fb93c Nikhil Gautam            2026-10-18  382  			*val = 0;
1a2cae129fb93c Nikhil Gautam            2026-10-18  383  			*val2 = 16667;
1a2cae129fb93c Nikhil Gautam            2026-10-18  384  			return IIO_VAL_INT_PLUS_MICRO;
1a2cae129fb93c Nikhil Gautam            2026-10-18  385  		default:
1a2cae129fb93c Nikhil Gautam            2026-10-18  386  			return -EINVAL;
1a2cae129fb93c Nikhil Gautam            2026-10-18  387  		}
1a2cae129fb93c Nikhil Gautam            2026-10-18  388  
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17 @389  	default:
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  390  		return -EINVAL;
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  391  	}
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  392  }
a94c24a712acb2 Narcisa Ana Maria Vasile 2017-07-17  393  

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

           reply	other threads:[~2026-10-19  7:26 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20261018170013.79443-1-nikhilgtr@gmail.com>]

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