--- zzzz-none-000/linux-3.10.107/drivers/tty/serial/dz.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/tty/serial/dz.c	2021-02-04 17:41:59.000000000 +0000
@@ -151,11 +151,6 @@
 	dz_out(dport, DZ_LPR, dport->cflag);
 }
 
-static void dz_enable_ms(struct uart_port *uport)
-{
-	/* nothing to do */
-}
-
 /*
  * ------------------------------------------------------------
  *
@@ -625,7 +620,7 @@
 	dport->port.read_status_mask = DZ_OERR;
 	if (termios->c_iflag & INPCK)
 		dport->port.read_status_mask |= DZ_FERR | DZ_PERR;
-	if (termios->c_iflag & (BRKINT | PARMRK))
+	if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
 		dport->port.read_status_mask |= DZ_BREAK;
 
 	/* characters to ignore */
@@ -751,7 +746,6 @@
 	.stop_tx	= dz_stop_tx,
 	.start_tx	= dz_start_tx,
 	.stop_rx	= dz_stop_rx,
-	.enable_ms	= dz_enable_ms,
 	.break_ctl	= dz_break_ctl,
 	.startup	= dz_startup,
 	.shutdown	= dz_shutdown,