UPF_USR_MASK      858 drivers/tty/serial/serial_core.c 		    (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0))
UPF_USR_MASK      860 drivers/tty/serial/serial_core.c 		uport->flags = ((uport->flags & ~UPF_USR_MASK) |
UPF_USR_MASK      861 drivers/tty/serial/serial_core.c 			       (new_flags & UPF_USR_MASK));