Symbol: sys_mq_close
sys/kern/init_sysent.c
528
{ AS(mq_close_args), 4, (sy_call_t *)sys_mq_close }, /* 511 = mq_close */
sys/sys/sysproto.h
1745
int sys_mq_close (struct sysmsg *sysmsg, const struct mq_close_args *);