Functions starting with `n' in kern

• namei kern/vfs_lookup.c:71
• nchinit kern/vfs_cache.c:242
• ndflush kern/tty_subr.c:111
• ndqb kern/tty_subr.c:93
• nextc kern/tty_subr.c:175
• nullioctl kern/tty_conf.c:93
• nullmodem kern/tty.c:724
• nullop kern/subr_xxx.c:95