[PATCH 6/8] serial: Make ->set_termios() old ktermios const

From: Ilpo Järvinen
Date: Tue Aug 16 2022 - 08:08:44 EST

Next message: Ilpo Järvinen: "[PATCH 8/8] tty: Make ->set_termios() old ktermios const"
Previous message: Ilpo Järvinen: "[PATCH 2/8] tty: Fix comment style in tty_termios_input_baud_rate()"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

There should be no reason to adjust old ktermios which is going to get
discarded anyway.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
drivers/tty/serial/21285.c | 2 +-
drivers/tty/serial/8250/8250_bcm7271.c | 2 +-
drivers/tty/serial/8250/8250_dw.c | 2 +-
drivers/tty/serial/8250/8250_dwlib.c | 3 ++-
drivers/tty/serial/8250/8250_dwlib.h | 2 +-
drivers/tty/serial/8250/8250_fintek.c | 2 +-
drivers/tty/serial/8250/8250_lpss.c | 2 +-
drivers/tty/serial/8250/8250_mid.c | 5 ++---
drivers/tty/serial/8250/8250_mtk.c | 2 +-
drivers/tty/serial/8250/8250_omap.c | 2 +-
drivers/tty/serial/8250/8250_port.c | 6 +++---
drivers/tty/serial/altera_jtaguart.c | 4 ++--
drivers/tty/serial/altera_uart.c | 2 +-
drivers/tty/serial/amba-pl010.c | 2 +-
drivers/tty/serial/amba-pl011.c | 4 ++--
drivers/tty/serial/apbuart.c | 2 +-
drivers/tty/serial/ar933x_uart.c | 2 +-
drivers/tty/serial/arc_uart.c | 2 +-
drivers/tty/serial/atmel_serial.c | 5 +++--
drivers/tty/serial/bcm63xx_uart.c | 5 ++---
drivers/tty/serial/clps711x.c | 2 +-
drivers/tty/serial/cpm_uart/cpm_uart_core.c | 2 +-
drivers/tty/serial/digicolor-usart.c | 2 +-
drivers/tty/serial/dz.c | 2 +-
drivers/tty/serial/fsl_linflexuart.c | 2 +-
drivers/tty/serial/fsl_lpuart.c | 4 ++--
drivers/tty/serial/icom.c | 5 ++---
drivers/tty/serial/imx.c | 2 +-
drivers/tty/serial/ip22zilog.c | 2 +-
drivers/tty/serial/jsm/jsm_tty.c | 4 ++--
drivers/tty/serial/lantiq.c | 4 ++--
drivers/tty/serial/liteuart.c | 2 +-
drivers/tty/serial/lpc32xx_hs.c | 2 +-
drivers/tty/serial/max3100.c | 2 +-
drivers/tty/serial/max310x.c | 2 +-
drivers/tty/serial/mcf.c | 2 +-
drivers/tty/serial/men_z135_uart.c | 4 ++--
drivers/tty/serial/meson_uart.c | 2 +-
drivers/tty/serial/milbeaut_usio.c | 3 ++-
drivers/tty/serial/mpc52xx_uart.c | 12 ++++++------
drivers/tty/serial/mps2-uart.c | 2 +-
drivers/tty/serial/msm_serial.c | 2 +-
drivers/tty/serial/mux.c | 2 +-
drivers/tty/serial/mvebu-uart.c | 2 +-
drivers/tty/serial/mxs-auart.c | 2 +-
drivers/tty/serial/omap-serial.c | 2 +-
drivers/tty/serial/owl-uart.c | 2 +-
drivers/tty/serial/pch_uart.c | 3 ++-
drivers/tty/serial/pic32_uart.c | 2 +-
drivers/tty/serial/pmac_zilog.c | 4 ++--
drivers/tty/serial/pxa.c | 2 +-
drivers/tty/serial/qcom_geni_serial.c | 3 ++-
drivers/tty/serial/rda-uart.c | 2 +-
drivers/tty/serial/rp2.c | 5 ++---
drivers/tty/serial/sa1100.c | 2 +-
drivers/tty/serial/samsung_tty.c | 2 +-
drivers/tty/serial/sb1250-duart.c | 2 +-
drivers/tty/serial/sc16is7xx.c | 2 +-
drivers/tty/serial/sccnxp.c | 3 ++-
drivers/tty/serial/serial-tegra.c | 3 ++-
drivers/tty/serial/serial_core.c | 2 +-
drivers/tty/serial/serial_txx9.c | 2 +-
drivers/tty/serial/sh-sci.c | 2 +-
drivers/tty/serial/sifive.c | 2 +-
drivers/tty/serial/sprd_serial.c | 5 ++---
drivers/tty/serial/st-asc.c | 2 +-
drivers/tty/serial/stm32-usart.c | 2 +-
drivers/tty/serial/sunhv.c | 2 +-
drivers/tty/serial/sunplus-uart.c | 2 +-
drivers/tty/serial/sunsab.c | 2 +-
drivers/tty/serial/sunsu.c | 2 +-
drivers/tty/serial/sunzilog.c | 2 +-
drivers/tty/serial/tegra-tcu.c | 2 +-
drivers/tty/serial/timbuart.c | 4 ++--
drivers/tty/serial/uartlite.c | 5 +++--
drivers/tty/serial/ucc_uart.c | 3 ++-
drivers/tty/serial/vt8500_serial.c | 2 +-
drivers/tty/serial/xilinx_uartps.c | 3 ++-
drivers/tty/serial/zs.c | 2 +-
drivers/tty/tty_ioctl.c | 2 +-
include/linux/serial_8250.h | 4 ++--
include/linux/serial_core.h | 6 +++---
82 files changed, 117 insertions(+), 112 deletions(-)

diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index 7520cc02fd4d..2f17bf4b221e 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -243,7 +243,7 @@ static void serial21285_shutdown(struct uart_port *port)

static void
serial21285_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned int baud, quot, h_lcr, b;
diff --git a/drivers/tty/serial/8250/8250_bcm7271.c b/drivers/tty/serial/8250/8250_bcm7271.c
index 8efdc271eb75..fa8ccf204d86 100644
--- a/drivers/tty/serial/8250/8250_bcm7271.c
+++ b/drivers/tty/serial/8250/8250_bcm7271.c
@@ -755,7 +755,7 @@ static void set_clock_mux(struct uart_port *up, struct brcmuart_priv *priv,

static void brcmstb_set_termios(struct uart_port *up,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_8250_port *p8250 = up_to_u8250p(up);
struct brcmuart_priv *priv = up->private_data;
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index a604b42e4458..7db51781289e 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -350,7 +350,7 @@ dw8250_do_pm(struct uart_port *port, unsigned int state, unsigned int old)
}

static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long newrate = tty_termios_baud_rate(termios) * 16;
struct dw8250_data *d = to_dw8250_data(p->private_data);
diff --git a/drivers/tty/serial/8250/8250_dwlib.c b/drivers/tty/serial/8250/8250_dwlib.c
index dbe4d44f60d4..75f32f054ebb 100644
--- a/drivers/tty/serial/8250/8250_dwlib.c
+++ b/drivers/tty/serial/8250/8250_dwlib.c
@@ -92,7 +92,8 @@ static void dw8250_set_divisor(struct uart_port *p, unsigned int baud,
serial8250_do_set_divisor(p, baud, quot, quot_frac);
}

-void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, struct ktermios *old)
+void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios,
+ const struct ktermios *old)
{
p->status &= ~UPSTAT_AUTOCTS;
if (termios->c_cflag & CRTSCTS)
diff --git a/drivers/tty/serial/8250/8250_dwlib.h b/drivers/tty/serial/8250/8250_dwlib.h
index 055bfdc87985..f13e91f2cace 100644
--- a/drivers/tty/serial/8250/8250_dwlib.h
+++ b/drivers/tty/serial/8250/8250_dwlib.h
@@ -47,7 +47,7 @@ struct dw8250_data {
unsigned int uart_16550_compatible:1;
};

-void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, struct ktermios *old);
+void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, const struct ktermios *old);
void dw8250_setup_port(struct uart_port *p);

static inline struct dw8250_data *to_dw8250_data(struct dw8250_port_data *data)
diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
index 65b6b3cbaff6..e2aa2a1a02dd 100644
--- a/drivers/tty/serial/8250/8250_fintek.c
+++ b/drivers/tty/serial/8250/8250_fintek.c
@@ -278,7 +278,7 @@ static void fintek_8250_set_max_fifo(struct fintek_8250 *pdata)

static void fintek_8250_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct fintek_8250 *pdata = port->private_data;
unsigned int baud = tty_termios_baud_rate(termios);
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index 4ba43bef9933..44cc755b1a29 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -70,7 +70,7 @@ static inline struct lpss8250 *to_lpss8250(struct dw8250_port_data *data)
}

static void byt_set_termios(struct uart_port *p, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud = tty_termios_baud_rate(termios);
struct lpss8250 *lpss = to_lpss8250(p->private_data);
diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c
index a2a03acb04ad..2cc78a4bf7a1 100644
--- a/drivers/tty/serial/8250/8250_mid.c
+++ b/drivers/tty/serial/8250/8250_mid.c
@@ -206,9 +206,8 @@ static void dnv_exit(struct mid8250 *mid)

/*****************************************************************************/

-static void mid8250_set_termios(struct uart_port *p,
- struct ktermios *termios,
- struct ktermios *old)
+static void mid8250_set_termios(struct uart_port *p, struct ktermios *termios,
+ const struct ktermios *old)
{
unsigned int baud = tty_termios_baud_rate(termios);
struct mid8250 *mid = p->private_data;
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index 54051ec7b499..fb1d5ec0940e 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -291,7 +291,7 @@ static void mtk8250_set_flow_ctrl(struct uart_8250_port *up, int mode)

static void
mtk8250_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
static const unsigned short fraction_L_mapping[] = {
0, 1, 0x5, 0x15, 0x55, 0x57, 0x57, 0x77, 0x7F, 0xFF, 0xFF
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 0dcecbbc3967..b43894e15b07 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -350,7 +350,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
*/
static void omap_8250_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_8250_port *up = up_to_u8250p(port);
struct omap8250_priv *priv = up->port.private_data;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 39b35a61958c..bd3207611f64 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2651,7 +2651,7 @@ static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,

static unsigned int serial8250_get_baud_rate(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int tolerance = port->uartclk / 100;
unsigned int min;
@@ -2737,7 +2737,7 @@ EXPORT_SYMBOL_GPL(serial8250_update_uartclk);

void
serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_8250_port *up = up_to_u8250p(port);
unsigned char cval;
@@ -2875,7 +2875,7 @@ EXPORT_SYMBOL(serial8250_do_set_termios);

static void
serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
if (port->set_termios)
port->set_termios(port, termios, old);
diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
index cb791c5149a3..23f339757894 100644
--- a/drivers/tty/serial/altera_jtaguart.c
+++ b/drivers/tty/serial/altera_jtaguart.c
@@ -106,8 +106,8 @@ static void altera_jtaguart_break_ctl(struct uart_port *port, int break_state)
}

static void altera_jtaguart_set_termios(struct uart_port *port,
- struct ktermios *termios,
- struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
/* Just copy the old termios settings back */
if (old)
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 8b749ed557c6..a38db2cb8dc1 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -175,7 +175,7 @@ static void altera_uart_break_ctl(struct uart_port *port, int break_state)

static void altera_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned int baud, baudclk;
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index fae0b581ff42..af27fb8ec145 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -370,7 +370,7 @@ static void pl010_shutdown(struct uart_port *port)

static void
pl010_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int lcr_h, old_cr;
unsigned long flags;
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 15f0e4d88c5a..39f79bc5aba1 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2030,7 +2030,7 @@ pl011_setup_status_masks(struct uart_port *port, struct ktermios *termios)

static void
pl011_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_amba_port *uap =
container_of(port, struct uart_amba_port, port);
@@ -2162,7 +2162,7 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,

static void
sbsa_uart_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_amba_port *uap =
container_of(port, struct uart_amba_port, port);
diff --git a/drivers/tty/serial/apbuart.c b/drivers/tty/serial/apbuart.c
index 9ef82d870ff2..450f4edfda0f 100644
--- a/drivers/tty/serial/apbuart.c
+++ b/drivers/tty/serial/apbuart.c
@@ -228,7 +228,7 @@ static void apbuart_shutdown(struct uart_port *port)
}

static void apbuart_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios, const struct ktermios *old)
{
unsigned int cr;
unsigned long flags;
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c
index 32caeac12985..0a4020dba165 100644
--- a/drivers/tty/serial/ar933x_uart.c
+++ b/drivers/tty/serial/ar933x_uart.c
@@ -283,7 +283,7 @@ static void ar933x_uart_get_scale_step(unsigned int clk,

static void ar933x_uart_set_termios(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct ar933x_uart_port *up =
container_of(port, struct ar933x_uart_port, port);
diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c
index 2a09e92ef9ed..2a65ea2660e1 100644
--- a/drivers/tty/serial/arc_uart.c
+++ b/drivers/tty/serial/arc_uart.c
@@ -351,7 +351,7 @@ static void arc_serial_shutdown(struct uart_port *port)

static void
arc_serial_set_termios(struct uart_port *port, struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct arc_uart_port *uart = to_arc_port(port);
unsigned int baud, uartl, uarth, hw_val;
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 30ba9eef7b39..a85169aa839d 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -2124,8 +2124,9 @@ static void atmel_serial_pm(struct uart_port *port, unsigned int state,
/*
* Change the port parameters
*/
-static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+static void atmel_set_termios(struct uart_port *port,
+ struct ktermios *termios,
+ const struct ktermios *old)
{
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
unsigned long flags;
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index 53b43174aa40..5d9737c2d1f2 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -492,9 +492,8 @@ static void bcm_uart_shutdown(struct uart_port *port)
/*
* serial core request to change current uart setting
*/
-static void bcm_uart_set_termios(struct uart_port *port,
- struct ktermios *new,
- struct ktermios *old)
+static void bcm_uart_set_termios(struct uart_port *port, struct ktermios *new,
+ const struct ktermios *old)
{
unsigned int ctl, baud, quot, ier;
unsigned long flags;
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index b9b66ad31a08..404b43a5ae33 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -251,7 +251,7 @@ static void uart_clps711x_shutdown(struct uart_port *port)

static void uart_clps711x_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
u32 ubrlcr;
unsigned int baud, quot;
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index db07d6a5d764..a4713cb0304d 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -484,7 +484,7 @@ static void cpm_uart_shutdown(struct uart_port *port)

static void cpm_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
int baud;
unsigned long flags;
diff --git a/drivers/tty/serial/digicolor-usart.c b/drivers/tty/serial/digicolor-usart.c
index af951e6a2ef4..0c0a62346f23 100644
--- a/drivers/tty/serial/digicolor-usart.c
+++ b/drivers/tty/serial/digicolor-usart.c
@@ -287,7 +287,7 @@ static void digicolor_uart_shutdown(struct uart_port *port)

static void digicolor_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud, divisor;
u8 config = 0;
diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index 3eaf4e85bfdd..829b452daee9 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -559,7 +559,7 @@ static void dz_reset(struct dz_port *dport)
}

static void dz_set_termios(struct uart_port *uport, struct ktermios *termios,
- struct ktermios *old_termios)
+ const struct ktermios *old_termios)
{
struct dz_port *dport = to_dport(uport);
unsigned long flags;
diff --git a/drivers/tty/serial/fsl_linflexuart.c b/drivers/tty/serial/fsl_linflexuart.c
index 98bb0c315e13..84e8153e5420 100644
--- a/drivers/tty/serial/fsl_linflexuart.c
+++ b/drivers/tty/serial/fsl_linflexuart.c
@@ -401,7 +401,7 @@ static void linflex_shutdown(struct uart_port *port)

static void
linflex_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned long cr, old_cr, cr1;
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index f6c33cd228c8..71539802f5a9 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1833,7 +1833,7 @@ static void lpuart32_shutdown(struct uart_port *port)

static void
lpuart_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
unsigned long flags;
@@ -2073,7 +2073,7 @@ static void lpuart32_serial_setbrg(struct lpuart_port *sport,

static void
lpuart32_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
unsigned long flags;
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index 45df29947fe8..819f957b6b84 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -1351,9 +1351,8 @@ static void icom_close(struct uart_port *port)
kref_put(&icom_port->adapter->kref, icom_kref_release);
}

-static void icom_set_termios(struct uart_port *port,
- struct ktermios *termios,
- struct ktermios *old_termios)
+static void icom_set_termios(struct uart_port *port, struct ktermios *termios,
+ const struct ktermios *old_termios)
{
struct icom_port *icom_port = to_icom_port(port);
int baud;
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 522445a8f666..5875ee66492b 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1620,7 +1620,7 @@ static void imx_uart_flush_buffer(struct uart_port *port)

static void
imx_uart_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct imx_port *sport = (struct imx_port *)port;
unsigned long flags;
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index 655e64b26852..dd0a8915ce4f 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -873,7 +873,7 @@ ip22zilog_convert_to_zs(struct uart_ip22zilog_port *up, unsigned int cflag,
/* The port lock is not held. */
static void
ip22zilog_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_ip22zilog_port *up =
container_of(port, struct uart_ip22zilog_port, port);
diff --git a/drivers/tty/serial/jsm/jsm_tty.c b/drivers/tty/serial/jsm/jsm_tty.c
index cb58bdec2f43..222afc270c88 100644
--- a/drivers/tty/serial/jsm/jsm_tty.c
+++ b/drivers/tty/serial/jsm/jsm_tty.c
@@ -300,8 +300,8 @@ static void jsm_tty_close(struct uart_port *port)
}

static void jsm_tty_set_termios(struct uart_port *port,
- struct ktermios *termios,
- struct ktermios *old_termios)
+ struct ktermios *termios,
+ const struct ktermios *old_termios)
{
unsigned long lock_flags;
struct jsm_channel *channel =
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index a3120c3347dd..6637b3caa6b7 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -405,8 +405,8 @@ lqasc_shutdown(struct uart_port *port)
}

static void
-lqasc_set_termios(struct uart_port *port,
- struct ktermios *new, struct ktermios *old)
+lqasc_set_termios(struct uart_port *port, struct ktermios *new,
+ const struct ktermios *old)
{
unsigned int cflag;
unsigned int iflag;
diff --git a/drivers/tty/serial/liteuart.c b/drivers/tty/serial/liteuart.c
index 328b50521f14..4c0604325ee9 100644
--- a/drivers/tty/serial/liteuart.c
+++ b/drivers/tty/serial/liteuart.c
@@ -178,7 +178,7 @@ static void liteuart_shutdown(struct uart_port *port)
}

static void liteuart_set_termios(struct uart_port *port, struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud;
unsigned long flags;
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
index 93140cac1ca1..0d5ef7df27d0 100644
--- a/drivers/tty/serial/lpc32xx_hs.c
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -493,7 +493,7 @@ static void serial_lpc32xx_shutdown(struct uart_port *port)
/* port->lock is not held. */
static void serial_lpc32xx_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned int baud, quot;
diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c
index 0b5f21fbb53d..c69602f356fd 100644
--- a/drivers/tty/serial/max3100.c
+++ b/drivers/tty/serial/max3100.c
@@ -418,7 +418,7 @@ static void max3100_set_mctrl(struct uart_port *port, unsigned int mctrl)

static void
max3100_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct max3100_port *s = container_of(port,
struct max3100_port,
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index ab10ca4a45b5..724049a7a97d 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -906,7 +906,7 @@ static void max310x_break_ctl(struct uart_port *port, int break_state)

static void max310x_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int lcr = 0, flow = 0;
int baud;
diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c
index f4aaaadd0742..b1cd9a76dd93 100644
--- a/drivers/tty/serial/mcf.c
+++ b/drivers/tty/serial/mcf.c
@@ -192,7 +192,7 @@ static void mcf_shutdown(struct uart_port *port)
/****************************************************************************/

static void mcf_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned int baud, baudclk;
diff --git a/drivers/tty/serial/men_z135_uart.c b/drivers/tty/serial/men_z135_uart.c
index 12117b596e73..3690f5cf0f43 100644
--- a/drivers/tty/serial/men_z135_uart.c
+++ b/drivers/tty/serial/men_z135_uart.c
@@ -646,8 +646,8 @@ static void men_z135_shutdown(struct uart_port *port)
}

static void men_z135_set_termios(struct uart_port *port,
- struct ktermios *termios,
- struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
struct men_z135_port *uart = to_men_z135(port);
unsigned int baud;
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 6c8db19fd572..f52534141b5a 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -335,7 +335,7 @@ static void meson_uart_change_speed(struct uart_port *port, unsigned long baud)

static void meson_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int cflags, iflags, baud;
unsigned long flags;
diff --git a/drivers/tty/serial/milbeaut_usio.c b/drivers/tty/serial/milbeaut_usio.c
index 347088bb380e..c15e0d84dc7e 100644
--- a/drivers/tty/serial/milbeaut_usio.c
+++ b/drivers/tty/serial/milbeaut_usio.c
@@ -298,7 +298,8 @@ static void mlb_usio_shutdown(struct uart_port *port)
}

static void mlb_usio_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
unsigned int escr, smr = MLB_USIO_SMR_SOE;
unsigned long flags, baud, quot;
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 3f1986c89694..6f09b1cb3e1c 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -101,7 +101,7 @@ struct psc_ops {
void (*cw_restore_ints)(struct uart_port *port);
unsigned int (*set_baudrate)(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old);
+ const struct ktermios *old);
int (*clock_alloc)(struct uart_port *port);
void (*clock_relse)(struct uart_port *port);
int (*clock)(struct uart_port *port, int enable);
@@ -287,7 +287,7 @@ static void mpc52xx_psc_cw_restore_ints(struct uart_port *port)

static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud;
unsigned int divisor;
@@ -305,7 +305,7 @@ static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port,

static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud;
unsigned int divisor;
@@ -533,7 +533,7 @@ static void mpc512x_psc_cw_restore_ints(struct uart_port *port)

static unsigned int mpc512x_psc_set_baudrate(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud;
unsigned int divisor;
@@ -880,7 +880,7 @@ static inline void mpc5125_set_divisor(struct mpc5125_psc __iomem *psc,

static unsigned int mpc5125_psc_set_baudrate(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud;
unsigned int divisor;
@@ -1167,7 +1167,7 @@ mpc52xx_uart_shutdown(struct uart_port *port)

static void
mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned char mr1, mr2;
diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c
index 5e9429dcc51f..2e3e6cf16817 100644
--- a/drivers/tty/serial/mps2-uart.c
+++ b/drivers/tty/serial/mps2-uart.c
@@ -358,7 +358,7 @@ static void mps2_uart_shutdown(struct uart_port *port)

static void
mps2_uart_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned int baud, bauddiv;
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 3159889ddae1..7dd19a281579 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -1263,7 +1263,7 @@ static void msm_shutdown(struct uart_port *port)
}

static void msm_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct msm_port *msm_port = to_msm_port(port);
struct msm_dma *dma = &msm_port->rx_dma;
diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index 0ba0f4d9459d..ed0e763f622a 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -289,7 +289,7 @@ static void mux_shutdown(struct uart_port *port)
*/
static void
mux_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
}

diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 65eaecd10b7c..ba16e1da6bd3 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -564,7 +564,7 @@ static unsigned int mvebu_uart_baud_rate_set(struct uart_port *port, unsigned in

static void mvebu_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned long flags;
unsigned int baud, min_baud, max_baud;
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 1944daf8593a..d21a4f3ef2fe 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -959,7 +959,7 @@ static int mxs_auart_dma_init(struct mxs_auart_port *s)
#define CTS_AT_AUART() !mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_CTS)
static void mxs_auart_settermios(struct uart_port *u,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct mxs_auart_port *s = to_auart_port(u);
u32 ctrl, ctrl2, div;
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 0aa666e247d5..c87d85b901a7 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -802,7 +802,7 @@ static void serial_omap_uart_qos_work(struct work_struct *work)

static void
serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_omap_port *up = to_uart_omap_port(port);
unsigned char cval = 0;
diff --git a/drivers/tty/serial/owl-uart.c b/drivers/tty/serial/owl-uart.c
index 888e17e3f25f..fde39cc1145d 100644
--- a/drivers/tty/serial/owl-uart.c
+++ b/drivers/tty/serial/owl-uart.c
@@ -328,7 +328,7 @@ static void owl_uart_change_baudrate(struct owl_uart_port *owl_port,

static void owl_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct owl_uart_port *owl_port = to_owl_uart_port(port);
unsigned int baud;
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 8a9065e4a903..11ba5df0618f 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1301,7 +1301,8 @@ static void pch_uart_shutdown(struct uart_port *port)
*bits. Update read_status_mask and ignore_status_mask to indicate
*the types of events we are interested in receiving. */
static void pch_uart_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
int rtn;
unsigned int baud, parity, bits, stb;
diff --git a/drivers/tty/serial/pic32_uart.c b/drivers/tty/serial/pic32_uart.c
index f418f1de66b3..2b8ba0702b70 100644
--- a/drivers/tty/serial/pic32_uart.c
+++ b/drivers/tty/serial/pic32_uart.c
@@ -609,7 +609,7 @@ static void pic32_uart_shutdown(struct uart_port *port)
/* serial core request to change current uart setting */
static void pic32_uart_set_termios(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct pic32_sport *sport = to_pic32_sport(port);
unsigned int baud;
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index f63257b8e872..fe2e4ec423f7 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1202,7 +1202,7 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)

static void __pmz_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_pmac_port *uap = to_pmz(port);
unsigned long baud;
@@ -1244,7 +1244,7 @@ static void __pmz_set_termios(struct uart_port *port, struct ktermios *termios,

/* The port lock is not held. */
static void pmz_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_pmac_port *uap = to_pmz(port);
unsigned long flags;
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 9309ffd87c8e..2d25231fad84 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -423,7 +423,7 @@ static void serial_pxa_shutdown(struct uart_port *port)

static void
serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_pxa_port *up = (struct uart_pxa_port *)port;
unsigned char cval, fcr = 0;
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index f4698a064a4d..52182f6a5444 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1005,7 +1005,8 @@ static unsigned long get_clk_div_rate(struct clk *clk, unsigned int baud,
}

static void qcom_geni_serial_set_termios(struct uart_port *uport,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
unsigned int baud;
u32 bits_per_char;
diff --git a/drivers/tty/serial/rda-uart.c b/drivers/tty/serial/rda-uart.c
index feb2054aba37..0e387e2144fa 100644
--- a/drivers/tty/serial/rda-uart.c
+++ b/drivers/tty/serial/rda-uart.c
@@ -238,7 +238,7 @@ static void rda_uart_change_baudrate(struct rda_uart_port *rda_port,

static void rda_uart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct rda_uart_port *rda_port = to_rda_uart_port(port);
unsigned long flags;
diff --git a/drivers/tty/serial/rp2.c b/drivers/tty/serial/rp2.c
index 6689d8add8f7..b81afb06f1f4 100644
--- a/drivers/tty/serial/rp2.c
+++ b/drivers/tty/serial/rp2.c
@@ -370,9 +370,8 @@ static void __rp2_uart_set_termios(struct rp2_uart_port *up,
up->ucode + RP2_RX_SWFLOW);
}

-static void rp2_uart_set_termios(struct uart_port *port,
- struct ktermios *new,
- struct ktermios *old)
+static void rp2_uart_set_termios(struct uart_port *port, struct ktermios *new,
+ const struct ktermios *old)
{
struct rp2_uart_port *up = port_to_up(port);
unsigned long flags;
diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c
index e64e42a19d1a..dd9e3253cab4 100644
--- a/drivers/tty/serial/sa1100.c
+++ b/drivers/tty/serial/sa1100.c
@@ -409,7 +409,7 @@ static void sa1100_shutdown(struct uart_port *port)

static void
sa1100_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct sa1100_port *sport =
container_of(port, struct sa1100_port, port);
diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index b7a4b47ce74e..77d1363029f5 100644
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -1530,7 +1530,7 @@ static const u16 udivslot_table[16] = {

static void s3c24xx_serial_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
const struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
struct s3c24xx_uart_port *ourport = to_ourport(port);
diff --git a/drivers/tty/serial/sb1250-duart.c b/drivers/tty/serial/sb1250-duart.c
index 2cf8533ef760..c5d2b6cdcb4a 100644
--- a/drivers/tty/serial/sb1250-duart.c
+++ b/drivers/tty/serial/sb1250-duart.c
@@ -531,7 +531,7 @@ static void sbd_init_port(struct sbd_port *sport)
}

static void sbd_set_termios(struct uart_port *uport, struct ktermios *termios,
- struct ktermios *old_termios)
+ const struct ktermios *old_termios)
{
struct sbd_port *sport = to_sport(uport);
unsigned int mode1 = 0, mode2 = 0, aux = 0;
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 259e08cc347c..5ecf8f90eb5c 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1015,7 +1015,7 @@ static void sc16is7xx_break_ctl(struct uart_port *port, int break_state)

static void sc16is7xx_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index c56de2e104d4..dd98509f52e5 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -636,7 +636,8 @@ static void sccnxp_break_ctl(struct uart_port *port, int break_state)
}

static void sccnxp_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
struct sccnxp_port *s = dev_get_drvdata(port->dev);
unsigned long flags;
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index ad4f3567ff90..da2993fc2f04 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1271,7 +1271,8 @@ static void tegra_uart_enable_ms(struct uart_port *u)
}

static void tegra_uart_set_termios(struct uart_port *u,
- struct ktermios *termios, struct ktermios *oldtermios)
+ struct ktermios *termios,
+ const struct ktermios *oldtermios)
{
struct tegra_uart_port *tup = to_tegra_uport(u);
unsigned int baud;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 12c87cd201a7..c8295904b331 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -380,7 +380,7 @@ EXPORT_SYMBOL(uart_update_timeout);
*/
unsigned int
uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old, unsigned int min, unsigned int max)
+ const struct ktermios *old, unsigned int min, unsigned int max)
{
unsigned int try;
unsigned int baud;
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index 228e380db080..e12f1dc18c38 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -594,7 +594,7 @@ static void serial_txx9_shutdown(struct uart_port *up)

static void
serial_txx9_set_termios(struct uart_port *up, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int cval, fcr = 0;
unsigned long flags;
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 0075a1420005..9ad3663b5152 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2367,7 +2367,7 @@ static void sci_reset(struct uart_port *port)
}

static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud, smr_val = SCSMR_ASYNC, scr_val = 0, i, bits;
unsigned int brr = 255, cks = 0, srr = 15, dl = 0, sccks = 0;
diff --git a/drivers/tty/serial/sifive.c b/drivers/tty/serial/sifive.c
index 5c3a07546a58..4761f172103a 100644
--- a/drivers/tty/serial/sifive.c
+++ b/drivers/tty/serial/sifive.c
@@ -646,7 +646,7 @@ static int sifive_serial_clk_notifier(struct notifier_block *nb,

static void sifive_serial_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct sifive_serial_port *ssp = port_to_sifive_serial_port(port);
unsigned long flags;
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index 4329b9c9cbf0..342a87967631 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -771,9 +771,8 @@ static void sprd_shutdown(struct uart_port *port)
devm_free_irq(port->dev, port->irq, port);
}

-static void sprd_set_termios(struct uart_port *port,
- struct ktermios *termios,
- struct ktermios *old)
+static void sprd_set_termios(struct uart_port *port, struct ktermios *termios,
+ const struct ktermios *old)
{
unsigned int baud, quot;
unsigned int lcr = 0, fc;
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index cce42f4c9bc2..fcecea689a0d 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -500,7 +500,7 @@ static void asc_pm(struct uart_port *port, unsigned int state,
}

static void asc_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct asc_port *ascport = to_asc_port(port);
struct gpio_desc *gpiod;
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 2c85dbf165c4..0b18615b2ca4 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1089,7 +1089,7 @@ static void stm32_usart_shutdown(struct uart_port *port)

static void stm32_usart_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct stm32_port *stm32_port = to_stm32_port(port);
const struct stm32_usart_offsets *ofs = &stm32_port->info->ofs;
diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index eafada8fb6fa..1938ba5e98c0 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -323,7 +323,7 @@ static void sunhv_shutdown(struct uart_port *port)

/* port->lock is not held. */
static void sunhv_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud = uart_get_baud_rate(port, termios, old, 0, 4000000);
unsigned int quot = uart_get_divisor(port, baud);
diff --git a/drivers/tty/serial/sunplus-uart.c b/drivers/tty/serial/sunplus-uart.c
index 60c73662f955..7afe61a0e72e 100644
--- a/drivers/tty/serial/sunplus-uart.c
+++ b/drivers/tty/serial/sunplus-uart.c
@@ -333,7 +333,7 @@ static void sunplus_shutdown(struct uart_port *port)

static void sunplus_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *oldtermios)
+ const struct ktermios *oldtermios)
{
u32 ext, div, div_l, div_h, baud, lcr;
u32 clk = port->uartclk;
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 6ea52293d9f3..b5498229b147 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -776,7 +776,7 @@ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cfla

/* port->lock is not held. */
static void sunsab_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_sunsab_port *up =
container_of(port, struct uart_sunsab_port, port);
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 84d545e5a8c7..1656efab343e 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -897,7 +897,7 @@ sunsu_change_speed(struct uart_port *port, unsigned int cflag,

static void
sunsu_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
unsigned int baud, quot;

diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index c14275d83b0b..a38d213ca7ac 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -938,7 +938,7 @@ sunzilog_convert_to_zs(struct uart_sunzilog_port *up, unsigned int cflag,
/* The port lock is not held. */
static void
sunzilog_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct uart_sunzilog_port *up =
container_of(port, struct uart_sunzilog_port, port);
diff --git a/drivers/tty/serial/tegra-tcu.c b/drivers/tty/serial/tegra-tcu.c
index 4877c54c613d..366dc94118bc 100644
--- a/drivers/tty/serial/tegra-tcu.c
+++ b/drivers/tty/serial/tegra-tcu.c
@@ -126,7 +126,7 @@ static void tegra_tcu_uart_shutdown(struct uart_port *port)

static void tegra_tcu_uart_set_termios(struct uart_port *port,
struct ktermios *new,
- struct ktermios *old)
+ const struct ktermios *old)
{
}

diff --git a/drivers/tty/serial/timbuart.c b/drivers/tty/serial/timbuart.c
index 08941eabe7b1..bb19ed012def 100644
--- a/drivers/tty/serial/timbuart.c
+++ b/drivers/tty/serial/timbuart.c
@@ -275,8 +275,8 @@ static int get_bindex(int baud)
}

static void timbuart_set_termios(struct uart_port *port,
- struct ktermios *termios,
- struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
unsigned int baud;
short bindex;
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 880e2afbb97b..eca41ac5477c 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -314,8 +314,9 @@ static void ulite_shutdown(struct uart_port *port)
clk_disable(pdata->clk);
}

-static void ulite_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
+static void ulite_set_termios(struct uart_port *port,
+ struct ktermios *termios,
+ const struct ktermios *old)
{
unsigned long flags;
struct uartlite_data *pdata = port->private_data;
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 3cc9ef08455c..0c7768b8e136 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -843,7 +843,8 @@ static void qe_uart_shutdown(struct uart_port *port)
* Set the serial port parameters.
*/
static void qe_uart_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
struct uart_qe_port *qe_port =
container_of(port, struct uart_qe_port, port);
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 6f08136ce78a..508ad7afa6de 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -355,7 +355,7 @@ static void vt8500_shutdown(struct uart_port *port)

static void vt8500_set_termios(struct uart_port *port,
struct ktermios *termios,
- struct ktermios *old)
+ const struct ktermios *old)
{
struct vt8500_port *vt8500_port =
container_of(port, struct vt8500_port, uart);
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 9e01fe6c0ab8..d7c7131c7258 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -675,7 +675,8 @@ static void cdns_uart_break_ctl(struct uart_port *port, int ctl)
* @old: Values of the previously saved termios structure
*/
static void cdns_uart_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
+ struct ktermios *termios,
+ const struct ktermios *old)
{
u32 cval = 0;
unsigned int baud, minbaud, maxbaud;
diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c
index 5bc58591665a..688db7d8b748 100644
--- a/drivers/tty/serial/zs.c
+++ b/drivers/tty/serial/zs.c
@@ -846,7 +846,7 @@ static void zs_reset(struct zs_port *zport)
}

static void zs_set_termios(struct uart_port *uport, struct ktermios *termios,
- struct ktermios *old_termios)
+ const struct ktermios *old_termios)
{
struct zs_port *zport = to_zport(uport);
struct zs_scc *scc = zport->scc;
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index fc94988f0283..31d11230e778 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -219,7 +219,7 @@ EXPORT_SYMBOL(tty_wait_until_sent);
* Termios Helper Methods
*/

-static void unset_locked_termios(struct tty_struct *tty, struct ktermios *old)
+static void unset_locked_termios(struct tty_struct *tty, const struct ktermios *old)
{
struct ktermios *termios = &tty->termios;
struct ktermios *locked = &tty->termios_locked;
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 8c7b793aa4d7..43edd10e8c96 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -32,7 +32,7 @@ struct plat_serial8250_port {
void (*serial_out)(struct uart_port *, int, int);
void (*set_termios)(struct uart_port *,
struct ktermios *new,
- struct ktermios *old);
+ const struct ktermios *old);
void (*set_ldisc)(struct uart_port *,
struct ktermios *);
unsigned int (*get_mctrl)(struct uart_port *);
@@ -157,7 +157,7 @@ extern int early_serial8250_setup(struct earlycon_device *device,
extern void serial8250_update_uartclk(struct uart_port *port,
unsigned int uartclk);
extern void serial8250_do_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old);
+ struct ktermios *termios, const struct ktermios *old);
extern void serial8250_do_set_ldisc(struct uart_port *port,
struct ktermios *termios);
extern unsigned int serial8250_do_get_mctrl(struct uart_port *port);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index aef3145f2032..0e9bc943bfa8 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -379,7 +379,7 @@ struct uart_ops {
void (*shutdown)(struct uart_port *);
void (*flush_buffer)(struct uart_port *);
void (*set_termios)(struct uart_port *, struct ktermios *new,
- struct ktermios *old);
+ const struct ktermios *old);
void (*set_ldisc)(struct uart_port *, struct ktermios *);
void (*pm)(struct uart_port *, unsigned int state,
unsigned int oldstate);
@@ -425,7 +425,7 @@ struct uart_port {
void (*serial_out)(struct uart_port *, int, int);
void (*set_termios)(struct uart_port *,
struct ktermios *new,
- struct ktermios *old);
+ const struct ktermios *old);
void (*set_ldisc)(struct uart_port *,
struct ktermios *);
unsigned int (*get_mctrl)(struct uart_port *);
@@ -644,7 +644,7 @@ void uart_write_wakeup(struct uart_port *port);
void uart_update_timeout(struct uart_port *port, unsigned int cflag,
unsigned int baud);
unsigned int uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old, unsigned int min,
+ const struct ktermios *old, unsigned int min,
unsigned int max);
unsigned int uart_get_divisor(struct uart_port *port, unsigned int baud);

--
2.30.2

Next message: Ilpo Järvinen: "[PATCH 8/8] tty: Make ->set_termios() old ktermios const"
Previous message: Ilpo Järvinen: "[PATCH 2/8] tty: Fix comment style in tty_termios_input_baud_rate()"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]