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Message-ID: <202210300015.TYiJIDdY-lkp@intel.com>
Date:   Sun, 30 Oct 2022 00:46:57 +0800
From:   kernel test robot <lkp@...el.com>
To:     Gwan-gyeong Mun <gwan-gyeong.mun@...el.com>,
        ndesaulniers@...gle.com
Cc:     oe-kbuild-all@...ts.linux.dev, peterz@...radead.org,
        llvm@...ts.linux.dev, ashutosh.dixit@...el.com,
        andi.shyti@...ux.intel.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bitfield: Use argument type for size comparison on
 Bitfield access macros

Hi Gwan-gyeong,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.1-rc2 next-20221028]
[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/Gwan-gyeong-Mun/bitfield-Use-argument-type-for-size-comparison-on-Bitfield-access-macros/20221029-133640
patch link:    https://lore.kernel.org/r/20221029053429.38381-1-gwan-gyeong.mun%40intel.com
patch subject: [PATCH] bitfield: Use argument type for size comparison on Bitfield access macros
config: nios2-randconfig-s033-20221028
compiler: nios2-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/91f22fce5cc0639c001bcf755c9dec0913073876
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Gwan-gyeong-Mun/bitfield-Use-argument-type-for-size-comparison-on-Bitfield-access-macros/20221029-133640
        git checkout 91f22fce5cc0639c001bcf755c9dec0913073876
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=nios2 SHELL=/bin/bash drivers/iio/cdc/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

sparse warnings: (new ones prefixed by >>)
>> drivers/iio/cdc/ad7746.c:281:23: sparse: sparse: cast truncates bits from constant value (ffffff01 becomes 1)
   drivers/iio/cdc/ad7746.c:297:23: sparse: sparse: cast truncates bits from constant value (ffffff01 becomes 1)
   drivers/iio/cdc/ad7746.c: note: in included file (through include/uapi/linux/swab.h, include/linux/swab.h, include/uapi/linux/byteorder/little_endian.h, ...):
   arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
   arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
   arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
   arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini

vim +281 drivers/iio/cdc/ad7746.c

6a7e4b04df3f4f drivers/staging/iio/cdc/ad7746.c Lucas Stankus     2021-05-23  265  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  266  static int ad7746_select_channel(struct iio_dev *indio_dev,
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  267  				 struct iio_chan_spec const *chan)
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  268  {
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  269  	struct ad7746_chip_info *chip = iio_priv(indio_dev);
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  270  	u8 vt_setup, cap_setup;
afcd0b22e35e0b drivers/staging/iio/cdc/ad7746.c HernĂ¡n Gonzalez   2018-04-13  271  	int ret, delay, idx;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  272  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  273  	switch (chan->type) {
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  274  	case IIO_CAPACITANCE:
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  275  		cap_setup = FIELD_PREP(AD7746_CAPSETUP_CIN2,
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  276  				       ad7746_chan_info[chan->address].cin2) |
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  277  			FIELD_PREP(AD7746_CAPSETUP_CAPDIFF,
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  278  				   ad7746_chan_info[chan->address].capdiff) |
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  279  			FIELD_PREP(AD7746_CAPSETUP_CAPEN, 1);
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  280  		vt_setup = chip->vt_setup & ~AD7746_VTSETUP_VTEN;
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26 @281  		idx = FIELD_GET(AD7746_CONF_CAPFS_MASK, chip->config);
579d542534c96c drivers/staging/iio/cdc/ad7746.c Eva Rachel Retuya 2016-10-28  282  		delay = ad7746_cap_filter_rate_table[idx][1];
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  283  
6a7e4b04df3f4f drivers/staging/iio/cdc/ad7746.c Lucas Stankus     2021-05-23  284  		ret = ad7746_set_capdac(chip, chan->channel);
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  285  		if (ret < 0)
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  286  			return ret;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  287  
050098500ae4f7 drivers/staging/iio/cdc/ad7746.c Alexander Vorwerk 2021-08-21  288  		if (chip->capdac_set != chan->channel)
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  289  			chip->capdac_set = chan->channel;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  290  		break;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  291  	case IIO_VOLTAGE:
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  292  	case IIO_TEMP:
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  293  		vt_setup = FIELD_PREP(AD7746_VTSETUP_VTMD_MASK,
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  294  				      ad7746_chan_info[chan->address].vtmd) |
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  295  			FIELD_PREP(AD7746_VTSETUP_VTEN, 1);
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  296  		cap_setup = chip->cap_setup & ~AD7746_CAPSETUP_CAPEN;
9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron  2022-06-26  297  		idx = FIELD_GET(AD7746_CONF_VTFS_MASK, chip->config);
579d542534c96c drivers/staging/iio/cdc/ad7746.c Eva Rachel Retuya 2016-10-28  298  		delay = ad7746_cap_filter_rate_table[idx][1];
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  299  		break;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  300  	default:
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  301  		return -EINVAL;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  302  	}
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  303  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  304  	if (chip->cap_setup != cap_setup) {
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  305  		ret = i2c_smbus_write_byte_data(chip->client,
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  306  						AD7746_REG_CAP_SETUP,
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  307  						cap_setup);
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  308  		if (ret < 0)
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  309  			return ret;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  310  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  311  		chip->cap_setup = cap_setup;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  312  	}
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  313  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  314  	if (chip->vt_setup != vt_setup) {
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  315  		ret = i2c_smbus_write_byte_data(chip->client,
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  316  						AD7746_REG_VT_SETUP,
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  317  						vt_setup);
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  318  		if (ret < 0)
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  319  			return ret;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  320  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  321  		chip->vt_setup = vt_setup;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  322  	}
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  323  
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  324  	return delay;
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  325  }
83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21  326  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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