[PATCH] mtd: ftl: Initialize rq.limits.discard_granularity

[kernel test robot]

Hi Zhihao,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on mtd/mtd/next]
[also build test WARNING on mtd/mtd/fixes linux/master linus/master v5.13-rc6 next-20210615]
[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/Zhihao-Cheng/mtd-ftl-Initialize-rq-limits-discard_granularity/20210616-134538
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/64ffb6f0cfd38ca3d47e7bef4674c52a14fe024d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Zhihao-Cheng/mtd-ftl-Initialize-rq-limits-discard_granularity/20210616-134538
        git checkout 64ffb6f0cfd38ca3d47e7bef4674c52a14fe024d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

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

All warnings (new ones prefixed by >>):

>> drivers/mtd/ftl.c:107: warning: "SECTOR_SIZE" redefined
     107 | #define SECTOR_SIZE 512
         | 
   In file included from drivers/mtd/ftl.c:73:
   include/linux/blkdev.h:967: note: this is the location of the previous definition
     967 | #define SECTOR_SIZE (1 << SECTOR_SHIFT)
         | 


vim +/SECTOR_SIZE +107 drivers/mtd/ftl.c

^1da177e4c3f41 Linus Torvalds 2005-04-16  105  
^1da177e4c3f41 Linus Torvalds 2005-04-16  106  /* Sector size -- shouldn't need to change */
^1da177e4c3f41 Linus Torvalds 2005-04-16 @107  #define SECTOR_SIZE	512
^1da177e4c3f41 Linus Torvalds 2005-04-16  108  
^1da177e4c3f41 Linus Torvalds 2005-04-16  109  

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