serial: treewide: Remove empty implementations of enable_ms()

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

40 files changed, 0 insertions, 239 deletions

diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index c7e8b60b6177..9b208bd686e6 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -78,10 +78,6 @@ static void serial21285_stop_rx(struct uart_port *port)
         }
 }
 
-static void serial21285_enable_ms(struct uart_port *port)
-{
-}
-
 static irqreturn_t serial21285_rx_chars(int irq, void *dev_id)
 {
         struct uart_port *port = dev_id;
@@ -345,7 +341,6 @@ static struct uart_ops serial21285_ops = {
         .stop_tx        = serial21285_stop_tx,
         .start_tx       = serial21285_start_tx,
         .stop_rx        = serial21285_stop_rx,
-        .enable_ms      = serial21285_enable_ms,
         .break_ctl      = serial21285_break_ctl,
         .startup        = serial21285_startup,
         .shutdown       = serial21285_shutdown,
diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
index 59b3da9bcc3f..e7d1aaf07294 100644
--- a/drivers/tty/serial/altera_jtaguart.c
+++ b/drivers/tty/serial/altera_jtaguart.c
@@ -109,10 +109,6 @@ static void altera_jtaguart_break_ctl(struct uart_port *port, int break_state)
 {
 }
 
-static void altera_jtaguart_enable_ms(struct uart_port *port)
-{
-}
-
 static void altera_jtaguart_set_termios(struct uart_port *port,
                                         struct ktermios *termios,
                                         struct ktermios *old)
@@ -291,7 +287,6 @@ static struct uart_ops altera_jtaguart_ops = {
         .start_tx       = altera_jtaguart_start_tx,
         .stop_tx        = altera_jtaguart_stop_tx,
         .stop_rx        = altera_jtaguart_stop_rx,
-        .enable_ms      = altera_jtaguart_enable_ms,
         .break_ctl      = altera_jtaguart_break_ctl,
         .startup        = altera_jtaguart_startup,
         .shutdown       = altera_jtaguart_shutdown,
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 323376668b72..4c1eae93110c 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -163,10 +163,6 @@ static void altera_uart_break_ctl(struct uart_port *port, int break_state)
         spin_unlock_irqrestore(&port->lock, flags);
 }
 
-static void altera_uart_enable_ms(struct uart_port *port)
-{
-}
-
 static void altera_uart_set_termios(struct uart_port *port,
                                     struct ktermios *termios,
                                     struct ktermios *old)
@@ -415,7 +411,6 @@ static struct uart_ops altera_uart_ops = {
         .start_tx       = altera_uart_start_tx,
         .stop_tx        = altera_uart_stop_tx,
         .stop_rx        = altera_uart_stop_rx,
-        .enable_ms      = altera_uart_enable_ms,
         .break_ctl      = altera_uart_break_ctl,
         .startup        = altera_uart_startup,
         .shutdown       = altera_uart_shutdown,
diff --git a/drivers/tty/serial/apbuart.c b/drivers/tty/serial/apbuart.c
index de11ab8ffd91..a34a0cec1685 100644
--- a/drivers/tty/serial/apbuart.c
+++ b/drivers/tty/serial/apbuart.c
@@ -71,11 +71,6 @@ static void apbuart_stop_rx(struct uart_port *port)
         UART_PUT_CTRL(port, cr);
 }
 
-static void apbuart_enable_ms(struct uart_port *port)
-{
-        /* No modem status change interrupts for APBUART */
-}
-
 static void apbuart_rx_chars(struct uart_port *port)
 {
         unsigned int status, ch, rsr, flag;
@@ -337,7 +332,6 @@ static struct uart_ops grlib_apbuart_ops = {
         .stop_tx = apbuart_stop_tx,
         .start_tx = apbuart_start_tx,
         .stop_rx = apbuart_stop_rx,
-        .enable_ms = apbuart_enable_ms,
         .break_ctl = apbuart_break_ctl,
         .startup = apbuart_startup,
         .shutdown = apbuart_shutdown,
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c
index acd03af7cd52..0be1c45efd65 100644
--- a/drivers/tty/serial/ar933x_uart.c
+++ b/drivers/tty/serial/ar933x_uart.c
@@ -176,10 +176,6 @@ static void ar933x_uart_break_ctl(struct uart_port *port, int break_state)
         spin_unlock_irqrestore(&up->port.lock, flags);
 }
 
-static void ar933x_uart_enable_ms(struct uart_port *port)
-{
-}
-
 /*
  * baudrate = (clk / (scale + 1)) * (step * (1 / 2^17))
  */
@@ -495,7 +491,6 @@ static struct uart_ops ar933x_uart_ops = {
         .stop_tx        = ar933x_uart_stop_tx,
         .start_tx       = ar933x_uart_start_tx,
         .stop_rx        = ar933x_uart_stop_rx,
-        .enable_ms      = ar933x_uart_enable_ms,
         .break_ctl      = ar933x_uart_break_ctl,
         .startup        = ar933x_uart_startup,
         .shutdown       = ar933x_uart_shutdown,
diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c
index c9f5c9dcc15c..643658f2b5b2 100644
--- a/drivers/tty/serial/arc_uart.c
+++ b/drivers/tty/serial/arc_uart.c
@@ -340,13 +340,6 @@ static void arc_serial_set_mctrl(struct uart_port *port, unsigned int mctrl)
         /* MCR not present */
 }
 
-/* Enable Modem Status Interrupts */
-
-static void arc_serial_enable_ms(struct uart_port *port)
-{
-        /* MSR not present */
-}
-
 static void arc_serial_break_ctl(struct uart_port *port, int break_state)
 {
         /* ARC UART doesn't support sending Break signal */
@@ -510,7 +503,6 @@ static struct uart_ops arc_serial_pops = {
         .stop_tx        = arc_serial_stop_tx,
         .start_tx       = arc_serial_start_tx,
         .stop_rx        = arc_serial_stop_rx,
-        .enable_ms      = arc_serial_enable_ms,
         .break_ctl      = arc_serial_break_ctl,
         .startup        = arc_serial_startup,
         .shutdown       = arc_serial_shutdown,
diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index 4f229703328b..1174efa466a6 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -426,11 +426,6 @@ static void sport_stop_rx(struct uart_port *port)
         SSYNC();
 }
 
-static void sport_enable_ms(struct uart_port *port)
-{
-        pr_debug("%s enter\n", __func__);
-}
-
 static void sport_break_ctl(struct uart_port *port, int break_state)
 {
         pr_debug("%s enter\n", __func__);
@@ -587,7 +582,6 @@ struct uart_ops sport_uart_ops = {
         .stop_tx        = sport_stop_tx,
         .start_tx       = sport_start_tx,
         .stop_rx        = sport_stop_rx,
-        .enable_ms      = sport_enable_ms,
         .break_ctl      = sport_break_ctl,
         .startup        = sport_startup,
         .shutdown       = sport_shutdown,
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index ac86a20992e9..dddc081568f1 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -200,14 +200,6 @@ static void bfin_serial_stop_rx(struct uart_port *port)
         UART_CLEAR_IER(uart, ERBFI);
 }
 
-/*
- * Set the modem control timer to fire immediately.
- */
-static void bfin_serial_enable_ms(struct uart_port *port)
-{
-}
-
-
 #if ANOMALY_05000363 && defined(CONFIG_SERIAL_BFIN_PIO)
 # define UART_GET_ANOMALY_THRESHOLD(uart)    ((uart)->anomaly_threshold)
 # define UART_SET_ANOMALY_THRESHOLD(uart, v) ((uart)->anomaly_threshold = (v))
@@ -1014,7 +1006,6 @@ static struct uart_ops bfin_serial_pops = {
         .stop_tx        = bfin_serial_stop_tx,
         .start_tx       = bfin_serial_start_tx,
         .stop_rx        = bfin_serial_stop_rx,
-        .enable_ms      = bfin_serial_enable_ms,
         .break_ctl      = bfin_serial_break_ctl,
         .startup        = bfin_serial_startup,
         .shutdown       = bfin_serial_shutdown,
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index 14aaea0d4131..f5b4c3d7e38f 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -352,7 +352,6 @@ static const struct uart_ops uart_clps711x_ops = {
         .stop_tx        = uart_clps711x_stop_tx,
         .start_tx       = uart_clps711x_start_tx,
         .stop_rx        = uart_clps711x_nop_void,
-        .enable_ms      = uart_clps711x_nop_void,
         .break_ctl      = uart_clps711x_break_ctl,
         .set_ldisc      = uart_clps711x_set_ldisc,
         .startup        = uart_clps711x_startup,
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index aa60e6d13eca..533852eb8778 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -202,14 +202,6 @@ static void cpm_uart_stop_rx(struct uart_port *port)
 }
 
 /*
- * Enable Modem status interrupts
- */
-static void cpm_uart_enable_ms(struct uart_port *port)
-{
-        pr_debug("CPM uart[%d]:enable ms\n", port->line);
-}
-
-/*
  * Generate a break.
  */
 static void cpm_uart_break_ctl(struct uart_port *port, int break_state)
@@ -1122,7 +1114,6 @@ static struct uart_ops cpm_uart_pops = {
         .stop_tx        = cpm_uart_stop_tx,
         .start_tx       = cpm_uart_start_tx,
         .stop_rx        = cpm_uart_stop_rx,
-        .enable_ms      = cpm_uart_enable_ms,
         .break_ctl      = cpm_uart_break_ctl,
         .startup        = cpm_uart_startup,
         .shutdown       = cpm_uart_shutdown,
diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index cdbbc788230a..c121f16a973f 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -151,11 +151,6 @@ static void dz_stop_rx(struct uart_port *uport)
         dz_out(dport, DZ_LPR, dport->cflag);
 }
 
-static void dz_enable_ms(struct uart_port *uport)
-{
-        /* nothing to do */
-}
-
 /*
  * ------------------------------------------------------------
  *
@@ -751,7 +746,6 @@ static struct uart_ops dz_ops = {
         .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,
diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c
index 3b0ee9afd76f..7baa34920dbf 100644
--- a/drivers/tty/serial/efm32-uart.c
+++ b/drivers/tty/serial/efm32-uart.c
@@ -185,11 +185,6 @@ static void efm32_uart_stop_rx(struct uart_port *port)
         efm32_uart_write32(efm_port, UARTn_CMD_RXDIS, UARTn_CMD);
 }
 
-static void efm32_uart_enable_ms(struct uart_port *port)
-{
-        /* no handshake lines, no modem status interrupts */
-}
-
 static void efm32_uart_break_ctl(struct uart_port *port, int ctl)
 {
         /* not possible without fiddling with gpios */
@@ -499,7 +494,6 @@ static struct uart_ops efm32_uart_pops = {
         .stop_tx = efm32_uart_stop_tx,
         .start_tx = efm32_uart_start_tx,
         .stop_rx = efm32_uart_stop_rx,
-        .enable_ms = efm32_uart_enable_ms,
         .break_ctl = efm32_uart_break_ctl,
         .startup = efm32_uart_startup,
         .shutdown = efm32_uart_shutdown,
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 49385c86cfba..c5ad567cab8d 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -179,10 +179,6 @@ static void lpuart_stop_rx(struct uart_port *port)
         writeb(temp & ~UARTCR2_RE, port->membase + UARTCR2);
 }
 
-static void lpuart_enable_ms(struct uart_port *port)
-{
-}
-
 static void lpuart_copy_rx_to_tty(struct lpuart_port *sport,
                 struct tty_port *tty, int count)
 {
@@ -996,7 +992,6 @@ static struct uart_ops lpuart_pops = {
         .stop_tx        = lpuart_stop_tx,
         .start_tx       = lpuart_start_tx,
         .stop_rx        = lpuart_stop_rx,
-        .enable_ms      = lpuart_enable_ms,
         .break_ctl      = lpuart_break_ctl,
         .startup        = lpuart_startup,
         .shutdown       = lpuart_shutdown,
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index 67423805e6d9..d4620fe5da2e 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -1052,11 +1052,6 @@ static void icom_stop_rx(struct uart_port *port)
         writeb(cmdReg & ~CMD_RCV_ENABLE, &ICOM_PORT->dram->CmdReg);
 }
 
-static void icom_enable_ms(struct uart_port *port)
-{
-        /* no-op */
-}
-
 static void icom_break(struct uart_port *port, int break_state)
 {
         unsigned char cmdReg;
@@ -1300,7 +1295,6 @@ static struct uart_ops icom_ops = {
         .start_tx = icom_start_tx,
         .send_xchar = icom_send_xchar,
         .stop_rx = icom_stop_rx,
-        .enable_ms = icom_enable_ms,
         .break_ctl = icom_break,
         .startup = icom_open,
         .shutdown = icom_close,
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c
index 6e4c715c5d26..abd7ea26ed9a 100644
--- a/drivers/tty/serial/ioc3_serial.c
+++ b/drivers/tty/serial/ioc3_serial.c
@@ -1880,7 +1880,6 @@ static struct uart_ops ioc3_ops = {
         .stop_tx = ic3_stop_tx,
         .start_tx = ic3_start_tx,
         .stop_rx = ic3_stop_rx,
-        .enable_ms = null_void_function,
         .break_ctl = ic3_break_ctl,
         .startup = ic3_startup,
         .shutdown = ic3_shutdown,
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
index 1274499850fc..aa28209f44c1 100644
--- a/drivers/tty/serial/ioc4_serial.c
+++ b/drivers/tty/serial/ioc4_serial.c
@@ -2597,7 +2597,6 @@ static struct uart_ops ioc4_ops = {
         .stop_tx        = ic4_stop_tx,
         .start_tx       = ic4_start_tx,
         .stop_rx        = null_void_function,
-        .enable_ms      = null_void_function,
         .break_ctl      = ic4_break_ctl,
         .startup        = ic4_startup,
         .shutdown       = ic4_shutdown,
diff --git a/drivers/tty/serial/jsm/jsm_tty.c b/drivers/tty/serial/jsm/jsm_tty.c
index 27bb75070c96..3e5c1563afe2 100644
--- a/drivers/tty/serial/jsm/jsm_tty.c
+++ b/drivers/tty/serial/jsm/jsm_tty.c
@@ -177,11 +177,6 @@ static void jsm_tty_stop_rx(struct uart_port *port)
         channel->ch_bd->bd_ops->disable_receiver(channel);
 }
 
-static void jsm_tty_enable_ms(struct uart_port *port)
-{
-        /* Nothing needed */
-}
-
 static void jsm_tty_break(struct uart_port *port, int break_state)
 {
         unsigned long lock_flags;
@@ -354,7 +349,6 @@ static struct uart_ops jsm_ops = {
         .start_tx       = jsm_tty_start_tx,
         .send_xchar     = jsm_tty_send_xchar,
         .stop_rx        = jsm_tty_stop_rx,
-        .enable_ms      = jsm_tty_enable_ms,
         .break_ctl      = jsm_tty_break,
         .startup        = jsm_tty_open,
         .shutdown       = jsm_tty_close,
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index 88d01e0bb0c8..ea030830cfa2 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -154,11 +154,6 @@ lqasc_stop_rx(struct uart_port *port)
         ltq_w32(ASCWHBSTATE_CLRREN, port->membase + LTQ_ASC_WHBSTATE);
 }
 
-static void
-lqasc_enable_ms(struct uart_port *port)
-{
-}
-
 static int
 lqasc_rx_chars(struct uart_port *port)
 {
@@ -568,7 +563,6 @@ static struct uart_ops lqasc_pops = {
         .stop_tx =      lqasc_stop_tx,
         .start_tx =     lqasc_start_tx,
         .stop_rx =      lqasc_stop_rx,
-        .enable_ms =    lqasc_enable_ms,
         .break_ctl =    lqasc_break_ctl,
         .startup =      lqasc_startup,
         .shutdown =     lqasc_shutdown,
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
index 701644f06820..6f0f89282847 100644
--- a/drivers/tty/serial/lpc32xx_hs.c
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -427,12 +427,6 @@ static void serial_lpc32xx_stop_rx(struct uart_port *port)
                 LPC32XX_HSU_FE_INT), LPC32XX_HSUART_IIR(port->membase));
 }
 
-/* port->lock held by caller.  */
-static void serial_lpc32xx_enable_ms(struct uart_port *port)
-{
-        /* Modem status is not supported */
-}
-
 /* port->lock is not held.  */
 static void serial_lpc32xx_break_ctl(struct uart_port *port,
                                      int break_state)
@@ -658,7 +652,6 @@ static struct uart_ops serial_lpc32xx_pops = {
         .stop_tx        = serial_lpc32xx_stop_tx,
         .start_tx       = serial_lpc32xx_start_tx,
         .stop_rx        = serial_lpc32xx_stop_rx,
-        .enable_ms      = serial_lpc32xx_enable_ms,
         .break_ctl      = serial_lpc32xx_break_ctl,
         .startup        = serial_lpc32xx_startup,
         .shutdown       = serial_lpc32xx_shutdown,
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index ba285cd45b59..82573dc4d8cf 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1008,7 +1008,6 @@ static const struct uart_ops max310x_ops = {
         .stop_tx        = max310x_null_void,
         .start_tx       = max310x_start_tx,
         .stop_rx        = max310x_null_void,
-        .enable_ms      = max310x_null_void,
         .break_ctl      = max310x_break_ctl,
         .startup        = max310x_startup,
         .shutdown       = max310x_shutdown,
diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c
index a6f085717f94..fab4d6ad16ef 100644
--- a/drivers/tty/serial/mcf.c
+++ b/drivers/tty/serial/mcf.c
@@ -150,12 +150,6 @@ static void mcf_break_ctl(struct uart_port *port, int break_state)
 
 /****************************************************************************/
 
-static void mcf_enable_ms(struct uart_port *port)
-{
-}
-
-/****************************************************************************/
-
 static int mcf_startup(struct uart_port *port)
 {
         struct mcf_uart *pp = container_of(port, struct mcf_uart, port);
@@ -507,7 +501,6 @@ static const struct uart_ops mcf_uart_ops = {
         .start_tx       = mcf_start_tx,
         .stop_tx        = mcf_stop_tx,
         .stop_rx        = mcf_stop_rx,
-        .enable_ms      = mcf_enable_ms,
         .break_ctl      = mcf_break_ctl,
         .startup        = mcf_startup,
         .shutdown       = mcf_shutdown,
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 759c6a6fa74a..ae49856ef6c7 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -1336,10 +1336,6 @@ static void mpsc_stop_rx(struct uart_port *port)
         mpsc_sdma_cmd(pi, SDMA_SDCM_AR);
 }
 
-static void mpsc_enable_ms(struct uart_port *port)
-{
-}
-
 static void mpsc_break_ctl(struct uart_port *port, int ctl)
 {
         struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
@@ -1674,7 +1670,6 @@ static struct uart_ops mpsc_pops = {
         .stop_tx        = mpsc_stop_tx,
         .start_tx       = mpsc_start_tx,
         .stop_rx        = mpsc_stop_rx,
-        .enable_ms      = mpsc_enable_ms,
         .break_ctl      = mpsc_break_ctl,
         .startup        = mpsc_startup,
         .shutdown       = mpsc_shutdown,
diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index db0448ae59dc..1504a14ec1a6 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -698,10 +698,6 @@ static void serial_m3110_pm(struct uart_port *port, unsigned int state,
 {
 }
 
-static void serial_m3110_enable_ms(struct uart_port *port)
-{
-}
-
 static struct uart_ops serial_m3110_ops = {
         .tx_empty       = serial_m3110_tx_empty,
         .set_mctrl      = serial_m3110_set_mctrl,
@@ -709,7 +705,6 @@ static struct uart_ops serial_m3110_ops = {
         .stop_tx        = serial_m3110_stop_tx,
         .start_tx       = serial_m3110_start_tx,
         .stop_rx        = serial_m3110_stop_rx,
-        .enable_ms      = serial_m3110_enable_ms,
         .break_ctl      = serial_m3110_break_ctl,
         .startup        = serial_m3110_startup,
         .shutdown       = serial_m3110_shutdown,
diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index be127d0da32c..dd26511ad875 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -169,16 +169,6 @@ static void mux_stop_rx(struct uart_port *port)
 }
 
 /**
- * mux_enable_ms - Enable modum status interrupts.
- * @port: Ptr to the uart_port.
- *
- * The Serial Mux does not support this function.
- */
-static void mux_enable_ms(struct uart_port *port)
-{
-}
-
-/**
  * mux_break_ctl - Control the transmitssion of a break signal.
  * @port: Ptr to the uart_port.
  * @break_state: Raise/Lower the break signal.
@@ -449,7 +439,6 @@ static struct uart_ops mux_pops = {
         .stop_tx =              mux_stop_tx,
         .start_tx =             mux_start_tx,
         .stop_rx =              mux_stop_rx,
-        .enable_ms =            mux_enable_ms,
         .break_ctl =            mux_break_ctl,
         .startup =              mux_startup,
         .shutdown =             mux_shutdown,
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 86de4477d98a..b5c329248c81 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -815,17 +815,11 @@ static void mxs_auart_break_ctl(struct uart_port *u, int ctl)
                              u->membase + AUART_LINECTRL_CLR);
 }
 
-static void mxs_auart_enable_ms(struct uart_port *port)
-{
-        /* just empty */
-}
-
 static struct uart_ops mxs_auart_ops = {
         .tx_empty       = mxs_auart_tx_empty,
         .start_tx       = mxs_auart_start_tx,
         .stop_tx        = mxs_auart_stop_tx,
         .stop_rx        = mxs_auart_stop_rx,
-        .enable_ms      = mxs_auart_enable_ms,
         .break_ctl      = mxs_auart_break_ctl,
         .set_mctrl      = mxs_auart_set_mctrl,
         .get_mctrl      = mxs_auart_get_mctrl,
diff --git a/drivers/tty/serial/nwpserial.c b/drivers/tty/serial/nwpserial.c
index 693bc6c2561e..c06366b6bc29 100644
--- a/drivers/tty/serial/nwpserial.c
+++ b/drivers/tty/serial/nwpserial.c
@@ -240,11 +240,6 @@ static void nwpserial_break_ctl(struct uart_port *port, int ctl)
         /* N/A */
 }
 
-static void nwpserial_enable_ms(struct uart_port *port)
-{
-        /* N/A */
-}
-
 static void nwpserial_stop_rx(struct uart_port *port)
 {
         struct nwpserial_port *up;
@@ -315,7 +310,6 @@ static struct uart_ops nwpserial_pops = {
         .stop_tx      = nwpserial_stop_tx,
         .start_tx     = nwpserial_start_tx,
         .stop_rx      = nwpserial_stop_rx,
-        .enable_ms    = nwpserial_enable_ms,
         .break_ctl    = nwpserial_break_ctl,
         .startup      = nwpserial_startup,
         .shutdown     = nwpserial_shutdown,
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 7793b16b6877..eadab074e7c9 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -203,10 +203,6 @@ static void s3c24xx_serial_stop_rx(struct uart_port *port)
         }
 }
 
-static void s3c24xx_serial_enable_ms(struct uart_port *port)
-{
-}
-
 static inline struct s3c24xx_uart_info *s3c24xx_port_to_info(struct uart_port *port)
 {
         return to_ourport(port)->info;
@@ -952,7 +948,6 @@ static struct uart_ops s3c24xx_serial_ops = {
         .stop_tx        = s3c24xx_serial_stop_tx,
         .start_tx       = s3c24xx_serial_start_tx,
         .stop_rx        = s3c24xx_serial_stop_rx,
-        .enable_ms      = s3c24xx_serial_enable_ms,
         .break_ctl      = s3c24xx_serial_break_ctl,
         .startup        = s3c24xx_serial_startup,
         .shutdown       = s3c24xx_serial_shutdown,
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 1b6a77c4b2cb..914825e03427 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -991,7 +991,6 @@ static const struct uart_ops sc16is7xx_ops = {
         .stop_tx        = sc16is7xx_stop_tx,
         .start_tx       = sc16is7xx_start_tx,
         .stop_rx        = sc16is7xx_stop_rx,
-        .enable_ms      = sc16is7xx_null_void,
         .break_ctl      = sc16is7xx_break_ctl,
         .startup        = sc16is7xx_startup,
         .shutdown       = sc16is7xx_shutdown,
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index e84b6a3bdd18..75850f70b479 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -533,11 +533,6 @@ static unsigned int sccnxp_tx_empty(struct uart_port *port)
         return (val & SR_TXEMT) ? TIOCSER_TEMT : 0;
 }
 
-static void sccnxp_enable_ms(struct uart_port *port)
-{
-        /* Do nothing */
-}
-
 static void sccnxp_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
         struct sccnxp_port *s = dev_get_drvdata(port->dev);
@@ -790,7 +785,6 @@ static const struct uart_ops sccnxp_ops = {
         .stop_tx        = sccnxp_stop_tx,
         .start_tx       = sccnxp_start_tx,
         .stop_rx        = sccnxp_stop_rx,
-        .enable_ms      = sccnxp_enable_ms,
         .break_ctl      = sccnxp_break_ctl,
         .startup        = sccnxp_startup,
         .shutdown       = sccnxp_shutdown,
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index ea8546092c7e..29f5232f79e4 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -244,11 +244,6 @@ static void serial_txx9_stop_rx(struct uart_port *port)
         up->port.read_status_mask &= ~TXX9_SIDISR_RDIS;
 }
 
-static void serial_txx9_enable_ms(struct uart_port *port)
-{
-        /* TXX9-SIO can not control DTR... */
-}
-
 static void serial_txx9_initialize(struct uart_port *port)
 {
         struct uart_txx9_port *up = to_uart_txx9_port(port);
@@ -858,7 +853,6 @@ static struct uart_ops serial_txx9_pops = {
         .stop_tx        = serial_txx9_stop_tx,
         .start_tx       = serial_txx9_start_tx,
         .stop_rx        = serial_txx9_stop_rx,
-        .enable_ms      = serial_txx9_enable_ms,
         .break_ctl      = serial_txx9_break_ctl,
         .startup        = serial_txx9_startup,
         .shutdown       = serial_txx9_shutdown,
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 88236da0ddf7..26dad3e87b52 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1560,13 +1560,6 @@ static void sci_stop_rx(struct uart_port *port)
         serial_port_out(port, SCSCR, ctrl);
 }
 
-static void sci_enable_ms(struct uart_port *port)
-{
-        /*
-         * Not supported by hardware, always a nop.
-         */
-}
-
 static void sci_break_ctl(struct uart_port *port, int break_state)
 {
         struct sci_port *s = to_sci_port(port);
@@ -2080,7 +2073,6 @@ static struct uart_ops sci_uart_ops = {
         .start_tx       = sci_start_tx,
         .stop_tx        = sci_stop_tx,
         .stop_rx        = sci_stop_rx,
-        .enable_ms      = sci_enable_ms,
         .break_ctl      = sci_break_ctl,
         .startup        = sci_startup,
         .shutdown       = sci_shutdown,
diff --git a/drivers/tty/serial/sn_console.c b/drivers/tty/serial/sn_console.c
index f51ffdc696fd..33e94e56dcdb 100644
--- a/drivers/tty/serial/sn_console.c
+++ b/drivers/tty/serial/sn_console.c
@@ -275,15 +275,6 @@ static void snp_release_port(struct uart_port *port)
 }
 
 /**
- * snp_enable_ms - Force modem status interrupts on - no-op for us
- * @port: Port to operate on - we ignore - no-op function
- *
- */
-static void snp_enable_ms(struct uart_port *port)
-{
-}
-
-/**
  * snp_shutdown - shut down the port - free irq and disable - no-op for us
  * @port: Port to shut down - we ignore
  *
@@ -396,7 +387,6 @@ static struct uart_ops sn_console_ops = {
         .stop_tx = snp_stop_tx,
         .start_tx = snp_start_tx,
         .stop_rx = snp_stop_rx,
-        .enable_ms = snp_enable_ms,
         .break_ctl = snp_break_ctl,
         .startup = snp_startup,
         .shutdown = snp_shutdown,
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index f48b1cc07eea..2bee4fbccba1 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -411,12 +411,6 @@ static void asc_stop_rx(struct uart_port *port)
         asc_disable_rx_interrupts(port);
 }
 
-/* Force modem status interrupts on */
-static void asc_enable_ms(struct uart_port *port)
-{
-        /* Nothing here yet .. */
-}
-
 /* Handle breaks - ignored by us */
 static void asc_break_ctl(struct uart_port *port, int break_state)
 {
@@ -644,7 +638,6 @@ static struct uart_ops asc_uart_ops = {
         .start_tx       = asc_start_tx,
         .stop_tx        = asc_stop_tx,
         .stop_rx        = asc_stop_rx,
-        .enable_ms      = asc_enable_ms,
         .break_ctl      = asc_break_ctl,
         .startup        = asc_startup,
         .shutdown       = asc_shutdown,
diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index dc697cee248a..20521db2189f 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -285,11 +285,6 @@ static void sunhv_stop_rx(struct uart_port *port)
 {
 }
 
-/* port->lock held by caller.  */
-static void sunhv_enable_ms(struct uart_port *port)
-{
-}
-
 /* port->lock is not held.  */
 static void sunhv_break_ctl(struct uart_port *port, int break_state)
 {
@@ -379,7 +374,6 @@ static struct uart_ops sunhv_pops = {
         .start_tx       = sunhv_start_tx,
         .send_xchar     = sunhv_send_xchar,
         .stop_rx        = sunhv_stop_rx,
-        .enable_ms      = sunhv_enable_ms,
         .break_ctl      = sunhv_break_ctl,
         .startup        = sunhv_startup,
         .shutdown       = sunhv_shutdown,
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 80a58eca785b..c9751d8b24c1 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -473,12 +473,6 @@ static void sunsab_stop_rx(struct uart_port *port)
         writeb(up->interrupt_mask1, &up->regs->w.imr0);
 }
 
-/* port->lock held by caller.  */
-static void sunsab_enable_ms(struct uart_port *port)
-{
-        /* For now we always receive these interrupts.  */
-}
-
 /* port->lock is not held.  */
 static void sunsab_break_ctl(struct uart_port *port, int break_state)
 {
@@ -807,7 +801,6 @@ static struct uart_ops sunsab_pops = {
         .start_tx       = sunsab_start_tx,
         .send_xchar     = sunsab_send_xchar,
         .stop_rx        = sunsab_stop_rx,
-        .enable_ms      = sunsab_enable_ms,
         .break_ctl      = sunsab_break_ctl,
         .startup        = sunsab_startup,
         .shutdown       = sunsab_shutdown,
diff --git a/drivers/tty/serial/tilegx.c b/drivers/tty/serial/tilegx.c
index 613ccf09dc2a..453215f5420d 100644
--- a/drivers/tty/serial/tilegx.c
+++ b/drivers/tty/serial/tilegx.c
@@ -314,15 +314,6 @@ static void tilegx_stop_rx(struct uart_port *port)
         mutex_unlock(&tile_uart->mutex);
 }
 
-
-/*
- * Enable modem status interrupts.
- */
-static void tilegx_enable_ms(struct uart_port *port)
-{
-        /* N/A */
-}
-
 /*
  * Control the transmission of a break signal.
  */
@@ -614,7 +605,6 @@ static const struct uart_ops tilegx_ops = {
         .stop_tx        = tilegx_stop_tx,
         .start_tx       = tilegx_start_tx,
         .stop_rx        = tilegx_stop_rx,
-        .enable_ms      = tilegx_enable_ms,
         .break_ctl      = tilegx_break_ctl,
         .startup        = tilegx_startup,
         .shutdown       = tilegx_shutdown,
diff --git a/drivers/tty/serial/timbuart.c b/drivers/tty/serial/timbuart.c
index f87097acd8ab..0d11d5032b93 100644
--- a/drivers/tty/serial/timbuart.c
+++ b/drivers/tty/serial/timbuart.c
@@ -244,11 +244,6 @@ static void timbuart_mctrl_check(struct uart_port *port, u32 isr, u32 *ier)
         *ier |= CTS_DELTA;
 }
 
-static void timbuart_enable_ms(struct uart_port *port)
-{
-        /* N/A */
-}
-
 static void timbuart_break_ctl(struct uart_port *port, int ctl)
 {
         /* N/A */
@@ -405,7 +400,6 @@ static struct uart_ops timbuart_ops = {
         .start_tx = timbuart_start_tx,
         .flush_buffer = timbuart_flush_buffer,
         .stop_rx = timbuart_stop_rx,
-        .enable_ms = timbuart_enable_ms,
         .break_ctl = timbuart_break_ctl,
         .startup = timbuart_startup,
         .shutdown = timbuart_shutdown,
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index dce27f34937e..9fc22f40796e 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -250,11 +250,6 @@ static void ulite_stop_rx(struct uart_port *port)
                 | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
 }
 
-static void ulite_enable_ms(struct uart_port *port)
-{
-        /* N/A */
-}
-
 static void ulite_break_ctl(struct uart_port *port, int ctl)
 {
         /* N/A */
@@ -395,7 +390,6 @@ static struct uart_ops ulite_ops = {
         .stop_tx        = ulite_stop_tx,
         .start_tx       = ulite_start_tx,
         .stop_rx        = ulite_stop_rx,
-        .enable_ms      = ulite_enable_ms,
         .break_ctl      = ulite_break_ctl,
         .startup        = ulite_startup,
         .shutdown       = ulite_shutdown,
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 1c52074c38df..c107a0f0e72f 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -435,16 +435,6 @@ static void qe_uart_stop_rx(struct uart_port *port)
         clrbits16(&qe_port->uccp->uccm, UCC_UART_UCCE_RX);
 }
 
-/*
- * Enable status change interrupts
- *
- * We don't support status change interrupts, but we need to define this
- * function otherwise the kernel will panic.
- */
-static void qe_uart_enable_ms(struct uart_port *port)
-{
-}
-
 /* Start or stop sending  break signal
  *
  * This function controls the sending of a break signal.  If break_state=1,
@@ -1102,7 +1092,6 @@ static struct uart_ops qe_uart_pops = {
         .stop_tx        = qe_uart_stop_tx,
         .start_tx       = qe_uart_start_tx,
         .stop_rx        = qe_uart_stop_rx,
-        .enable_ms      = qe_uart_enable_ms,
         .break_ctl      = qe_uart_break_ctl,
         .startup        = qe_uart_startup,
         .shutdown       = qe_uart_shutdown,
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 8809775e2ba3..01951d27cc03 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -918,11 +918,6 @@ static void cdns_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
         /* N/A */
 }
 
-static void cdns_uart_enable_ms(struct uart_port *port)
-{
-        /* N/A */
-}
-
 #ifdef CONFIG_CONSOLE_POLL
 static int cdns_uart_poll_get_char(struct uart_port *port)
 {
@@ -974,7 +969,6 @@ static void cdns_uart_poll_put_char(struct uart_port *port, unsigned char c)
 static struct uart_ops cdns_uart_ops = {
         .set_mctrl      = cdns_uart_set_mctrl,
         .get_mctrl      = cdns_uart_get_mctrl,
-        .enable_ms      = cdns_uart_enable_ms,
         .start_tx       = cdns_uart_start_tx,
         .stop_tx        = cdns_uart_stop_tx,
         .stop_rx        = cdns_uart_stop_rx,