linux-kernel - Re: [PATCH v1 3/5] iio: accel: bma400: Add triggered buffer support

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Date:   Sun, 20 Mar 2022 11:30:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jagath Jog J <jagathjog1996@...il.com>, dan@...obertson.com,
        jic23@...nel.org, andy.shevchenko@...il.com
Cc:     kbuild-all@...ts.01.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/5] iio: accel: bma400: Add triggered buffer support

Hi Jagath,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on v5.17-rc8]
[cannot apply to jic23-iio/togreg next-20220318]
[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]

url:    https://github.com/0day-ci/linux/commits/Jagath-Jog-J/iio-accel-bma400-Add-support-for-buffer-and-step/20220320-021114
base:    09688c0166e76ce2fb85e86b9d99be8b0084cdf9
config: i386-randconfig-s001 (https://download.01.org/0day-ci/archive/20220320/202203201124.OLMstZaW-lkp@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/8dc9a46d5af9a53917108ce2b103b3d9a50986a5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jagath-Jog-J/iio-accel-bma400-Add-support-for-buffer-and-step/20220320-021114
        git checkout 8dc9a46d5af9a53917108ce2b103b3d9a50986a5
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/iio/accel/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/iio/accel/bma400_core.c:906:13: sparse: sparse: restricted __le16 degrades to integer

vim +906 drivers/iio/accel/bma400_core.c

   891	
   892	static irqreturn_t bma400_interrupt(int irq, void *private)
   893	{
   894		struct iio_dev *indio_dev = private;
   895		struct bma400_data *data = iio_priv(indio_dev);
   896		int ret;
   897		__le16 status;
   898	
   899		mutex_lock(&data->mutex);
   900		ret = regmap_bulk_read(data->regmap, BMA400_INT_STAT0_REG, &status,
   901				       sizeof(status));
   902		mutex_unlock(&data->mutex);
   903		if (ret)
   904			goto out;
   905	
 > 906		if (status & BMA400_INT_DRDY_MSK)
   907			iio_trigger_poll_chained(data->trig);
   908	
   909	out:
   910		return IRQ_HANDLED;
   911	}
   912	

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