Re: [PATCH] btrfs: remove verity Merkle folio from page cache on error

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

Hi Yichong,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v7.2-rc7]
[cannot apply to kdave/for-next next-20260813]
[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/Yichong-Chen/btrfs-remove-verity-Merkle-folio-from-page-cache-on-error/20260813-080149
base:   linus/master
patch link:    https://lore.kernel.org/r/20260706053907.544337-1-chenyichong%40uniontech.com
patch subject: [PATCH] btrfs: remove verity Merkle folio from page cache on error
config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20260815/202608150828.VDr6P7DT-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260815/202608150828.VDr6P7DT-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608150828.VDr6P7DT-lkp@intel.com/

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

>> ERROR: modpost: "filemap_remove_folio" [fs/btrfs/btrfs.ko] undefined!

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