Re: [PATCH v1] Add struct folio to cacheflush.h

[kernel test robot <lkp@intel.com>]

Hi Michael,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.17-rc5 next-20220224]
[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/Michael-Cheng/Add-struct-folio-to-cacheflush-h/20220226-041442
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2c271fe77d52a0555161926c232cd5bc07178b39
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220226/202202260658.uzJ0YnVP-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/f519440dbde207a6ade2472cd2e6c32028923342
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Michael-Cheng/Add-struct-folio-to-cacheflush-h/20220226-041442
        git checkout f519440dbde207a6ade2472cd2e6c32028923342
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> ld: block/bfq-wf2q.o:(.bss+0x0): multiple definition of `folio'; block/bfq-iosched.o:(.bss+0x0): first defined here
   ld: block/bfq-cgroup.o:(.bss+0x0): multiple definition of `folio'; block/bfq-iosched.o:(.bss+0x0): first defined here
--
>> ld: fs/isofs/inode.o:(.bss+0x0): multiple definition of `folio'; fs/isofs/namei.o:(.bss+0x0): first defined here
   ld: fs/isofs/dir.o:(.bss+0x0): multiple definition of `folio'; fs/isofs/namei.o:(.bss+0x0): first defined here
   ld: fs/isofs/util.o:(.bss+0x0): multiple definition of `folio'; fs/isofs/namei.o:(.bss+0x0): first defined here
   ld: fs/isofs/rock.o:(.bss+0x0): multiple definition of `folio'; fs/isofs/namei.o:(.bss+0x0): first defined here
   ld: fs/isofs/export.o:(.bss+0x0): multiple definition of `folio'; fs/isofs/namei.o:(.bss+0x0): first defined here
   ld: fs/isofs/joliet.o:(.bss+0x0): multiple definition of `folio'; fs/isofs/namei.o:(.bss+0x0): first defined here

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