Re: [PATCH 1/2] mtd: spi-nor: When a flash memory is missing do not report an error

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Hi Michal,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on mtd/spi-nor/next]
[also build test WARNING on sunxi/sunxi/for-next krzk/for-next krzk-dt/for-next krzk-mem-ctrl/for-next linus/master v5.19-rc6 next-20220714]
[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/Michal-Suchanek/mtd-spi-nor-When-a-flash-memory-is-missing-do-not-report-an-error/20220715-032336
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git spi-nor/next
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220715/202207150854.H5k2mIIu-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/d747dae258dd8d5220d38fae5fd09be703b0391b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Michal-Suchanek/mtd-spi-nor-When-a-flash-memory-is-missing-do-not-report-an-error/20220715-032336
        git checkout d747dae258dd8d5220d38fae5fd09be703b0391b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/mtd/spi-nor/

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

All warnings (new ones prefixed by >>):

>> drivers/mtd/spi-nor/core.c:1655:8: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
    1655 | static const bool buffer_uniform(const u8 *buffer, size_t length)
         |        ^~~~~


vim +1655 drivers/mtd/spi-nor/core.c

  1654	
> 1655	static const bool buffer_uniform(const u8 *buffer, size_t length)
  1656	{
  1657		bool all0;
  1658		size_t i;
  1659	
  1660		for (all0 = true, i = 0; i < length; i++)
  1661			if (buffer[i] != 0) {
  1662				all0 = false;
  1663				break;
  1664			}
  1665		if (all0)
  1666			return true;
  1667		for (i = 0; i < length; i++)
  1668			if (buffer[i] != 0xff)
  1669				return false;
  1670		return true;
  1671	}
  1672	

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



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