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SubjectRe: [PATCH v2 1/2] media: i2c: Add driver for the Sony Exmor-RS IMX300 camera sensor
Hi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on robh/for-next linus/master v5.10-rc2 next-20201103]
[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/kholk11-gmail-com/Add-support-for-the-Sony-Exmor-RS-IMX300-camera-sensor/20201030-013153
base: git://linuxtv.org/media_tree.git master
config: parisc-randconfig-s031-20201104 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
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: v0.6.3-76-gf680124b-dirty
# https://github.com/0day-ci/linux/commit/8be57de72d799d8cffbdb7bbb8a5eca25cedfb0f
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review kholk11-gmail-com/Add-support-for-the-Sony-Exmor-RS-IMX300-camera-sensor/20201030-013153
git checkout 8be57de72d799d8cffbdb7bbb8a5eca25cedfb0f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc

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


"sparse warnings: (new ones prefixed by >>)"
>> drivers/media/i2c/imx300.c:1876:17: sparse: sparse: incompatible types in comparison expression (different signedness):
>> drivers/media/i2c/imx300.c:1876:17: sparse: signed long long *
>> drivers/media/i2c/imx300.c:1876:17: sparse: unsigned long long [usertype] *

vim +1876 drivers/media/i2c/imx300.c

1864
1865 static s64 get_pixel_rate(struct imx300 *imx300)
1866 {
1867 s64 prate;
1868
1869 if (imx300->mode->high_bw)
1870 prate = IMX300_HIGH_BW_PIXEL_RATE;
1871 else
1872 prate = IMX300_LOW_BW_PIXEL_RATE;
1873
1874 /* Satisfy the settle time for 8bits */
1875 if (imx300->cur_bps == 8) {
> 1876 do_div(prate, 10);
1877 prate *= 12;
1878 }
1879
1880 return prate;
1881 }
1882

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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