[PATCH] erofs: add direct I/O support for compressed data

[kernel test robot]

Hi Chunhai,

kernel test robot noticed the following build errors:

[auto build test ERROR on xiang-erofs/dev-test]
[also build test ERROR on xiang-erofs/dev xiang-erofs/fixes linus/master v6.17-rc7 next-20250922]
[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/Chunhai-Guo/erofs-add-direct-I-O-support-for-compressed-data/20250922-204843
base:   https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test
patch link:    https://lore.kernel.org/r/20250922124304.489419-1-guochunhai%40vivo.com
patch subject: [PATCH] erofs: add direct I/O support for compressed data
config: i386-buildonly-randconfig-003-20250923 (https://download.01.org/0day-ci/archive/20250923/202509231034.jXPbkvNB-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250923/202509231034.jXPbkvNB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509231034.jXPbkvNB-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "z_erofs_file_fops" [fs/erofs/erofs.ko] undefined!

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