Hi Yangtao,

I love your patch! Yet something to improve:

[auto build test ERROR on v5.14-rc5]
[cannot apply to f2fs/dev-test next-20210813]
[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/Yangtao-Li/f2fs-introduce-proc-fs-f2fs-dev-fsck_stack-node/20210813-203435
base:    36a21d51725af2ce0700c6ebcb6b9594aac658a6
config: openrisc-buildonly-randconfig-r006-20210813 (attached as .config)
compiler: or1k-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://github.com/0day-ci/linux/commit/82cad918b8c0849884a4fa162595110dcb777627
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Yangtao-Li/f2fs-introduce-proc-fs-f2fs-dev-fsck_stack-node/20210813-203435
        git checkout 82cad918b8c0849884a4fa162595110dcb777627
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=openrisc 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 >>):

   or1k-linux-ld: fs/f2fs/dir.o: in function `set_sbi_flag.part.0':
>> dir.c:(.text+0x28): undefined reference to `filter_irq_stacks'
   dir.c:(.text+0x28): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `filter_irq_stacks'
>> or1k-linux-ld: dir.c:(.text+0x38): undefined reference to `stack_depot_save'
   dir.c:(.text+0x38): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `stack_depot_save'
   or1k-linux-ld: fs/f2fs/file.o: in function `set_sbi_flag.part.0':
>> file.c:(.text+0xc58): undefined reference to `filter_irq_stacks'
   file.c:(.text+0xc58): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `filter_irq_stacks'
>> or1k-linux-ld: file.c:(.text+0xc68): undefined reference to `stack_depot_save'
   file.c:(.text+0xc68): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `stack_depot_save'
   or1k-linux-ld: fs/f2fs/inode.o: in function `set_sbi_flag.part.0':
>> inode.c:(.text+0x234): undefined reference to `filter_irq_stacks'
   inode.c:(.text+0x234): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `filter_irq_stacks'
>> or1k-linux-ld: inode.c:(.text+0x244): undefined reference to `stack_depot_save'
   inode.c:(.text+0x244): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `stack_depot_save'
   or1k-linux-ld: fs/f2fs/super.o: in function `set_sbi_flag.part.0':
>> super.c:(.text+0x54b8): undefined reference to `filter_irq_stacks'
   super.c:(.text+0x54b8): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `filter_irq_stacks'
>> or1k-linux-ld: super.c:(.text+0x54c8): undefined reference to `stack_depot_save'
   super.c:(.text+0x54c8): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `stack_depot_save'
   or1k-linux-ld: fs/f2fs/inline.o: in function `set_sbi_flag.part.0':
>> inline.c:(.text+0x28): undefined reference to `filter_irq_stacks'
   inline.c:(.text+0x28): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `filter_irq_stacks'
>> or1k-linux-ld: inline.c:(.text+0x38): undefined reference to `stack_depot_save'
   inline.c:(.text+0x38): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `stack_depot_save'
   or1k-linux-ld: fs/f2fs/checkpoint.o: in function `set_sbi_flag.part.0':
>> checkpoint.c:(.text+0x134): undefined reference to `filter_irq_stacks'
   checkpoint.c:(.text+0x134): additional relocation overflows omitted from the output
>> or1k-linux-ld: checkpoint.c:(.text+0x144): undefined reference to `stack_depot_save'
   or1k-linux-ld: fs/f2fs/gc.o: in function `set_sbi_flag.part.0':
>> gc.c:(.text+0x178): undefined reference to `filter_irq_stacks'
>> or1k-linux-ld: gc.c:(.text+0x188): undefined reference to `stack_depot_save'
   or1k-linux-ld: fs/f2fs/node.o: in function `set_sbi_flag.part.0':
>> node.c:(.text+0x1cc): undefined reference to `filter_irq_stacks'
>> or1k-linux-ld: node.c:(.text+0x1dc): undefined reference to `stack_depot_save'
   or1k-linux-ld: fs/f2fs/segment.o: in function `set_sbi_flag.part.0':
>> segment.c:(.text+0x674): undefined reference to `filter_irq_stacks'
>> or1k-linux-ld: segment.c:(.text+0x684): undefined reference to `stack_depot_save'
   or1k-linux-ld: fs/f2fs/sysfs.o: in function `fsck_stack_seq_show':
>> sysfs.c:(.text+0x448): undefined reference to `stack_depot_fetch'
   or1k-linux-ld: fs/f2fs/xattr.o: in function `set_sbi_flag.part.0':
>> xattr.c:(.text+0x278): undefined reference to `filter_irq_stacks'
   or1k-linux-ld: xattr.c:(.text+0x288): undefined reference to `stack_depot_save'

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