[PATCH v1 bpf-next 4/5] bpf: Add kfunc to scrub SCM_RIGHTS at security_unix_may_send().

[kernel test robot]

Hi Kuniyuki,

kernel test robot noticed the following build errors:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/af_unix-Call-security_unix_may_send-in-sendmsg-for-all-socket-types/20250506-060219
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link:    https://lore.kernel.org/r/20250505215802.48449-5-kuniyu%40amazon.com
patch subject: [PATCH v1 bpf-next 4/5] bpf: Add kfunc to scrub SCM_RIGHTS at security_unix_may_send().
config: csky-randconfig-001-20250509 (https://download.01.org/0day-ci/archive/20250509/202505092221.8wrWSFI7-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250509/202505092221.8wrWSFI7-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/202505092221.8wrWSFI7-lkp@intel.com/

All errors (new ones prefixed by >>):

   csky-linux-ld: net/core/filter.o: in function `bpf_unix_scrub_fds':
>> filter.c:(.text+0xc796): undefined reference to `unix_scrub_fds'
   csky-linux-ld: net/core/filter.o: in function `bpf_sock_destroy':
   filter.c:(.text+0xc7dc): undefined reference to `unix_scrub_fds'

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki