Hi Jiang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]
[also build test ERROR on next-20210730]
[cannot apply to bpf-next/master bpf/master net/master linus/master v5.14-rc3]
[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/Jiang-Wang/sockmap-add-sockmap-support-for-unix-stream-socket/20210803-052154
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git aae950b189413ed3201354600d44223da0bcf63c
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 10.3.0
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/a5c98954dc228ca383e982d84f9a707ba5f248bb
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jiang-Wang/sockmap-add-sockmap-support-for-unix-stream-socket/20210803-052154
        git checkout a5c98954dc228ca383e982d84f9a707ba5f248bb
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=m68k 

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 >>, old ones prefixed by <<):

>> ERROR: modpost: "sock_map_unhash" [net/unix/unix.ko] undefined!

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