[chao-linux:feature/dax 6/11] fs/f2fs/data.c:4262:16: error: implicit declaration of function 'dax_writeback_mapping_range'

From: kernel test robot
Date: Wed Aug 25 2021 - 20:13:49 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git feature/dax
head: 1e51aff10ad27548ead6f2d7c0198bcb969fd631
commit: 7b903d19055bf2665d9b5a895ecf5fc5d89e93ca [6/11] f2fs: support dax address space operation
config: alpha-randconfig-c024-20210825 (attached as .config)
compiler: alpha-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?id=7b903d19055bf2665d9b5a895ecf5fc5d89e93ca
git remote add chao-linux https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git
git fetch --no-tags chao-linux feature/dax
git checkout 7b903d19055bf2665d9b5a895ecf5fc5d89e93ca
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=alpha

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

All errors (new ones prefixed by >>):

fs/f2fs/data.c: In function 'f2fs_dax_writepages':
>> fs/f2fs/data.c:4262:16: error: implicit declaration of function 'dax_writeback_mapping_range' [-Werror=implicit-function-declaration]
4262 | return dax_writeback_mapping_range(mapping, sbi->s_daxdev, wbc);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/f2fs/data.c:4262:56: error: 'struct f2fs_sb_info' has no member named 's_daxdev'
4262 | return dax_writeback_mapping_range(mapping, sbi->s_daxdev, wbc);
| ^~
fs/f2fs/data.c:4263:1: error: control reaches end of non-void function [-Werror=return-type]
4263 | }
| ^
cc1: some warnings being treated as errors


vim +/dax_writeback_mapping_range +4262 fs/f2fs/data.c

4253
4254 static int f2fs_dax_writepages(struct address_space *mapping,
4255 struct writeback_control *wbc)
4256 {
4257 struct f2fs_sb_info *sbi = F2FS_I_SB(mapping->host);
4258
4259 if (unlikely(f2fs_cp_error(sbi)))
4260 return -EIO;
4261
> 4262 return dax_writeback_mapping_range(mapping, sbi->s_daxdev, wbc);
4263 }
4264

---
0-DAY CI Kernel Test Service, Intel Corporation
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Attachment: .config.gz
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