Declare uart_ops structures as const as they are only stored in the ops
field of an uart_port structure. This field is of type const, so
uart_ops structures having this property can be made const too.

File size details before and after patching.
First line of every .o file shows the file size before patching
and second line shows the size after patching.

   text    data     bss     dec     hex filename

   2977     456      64    3497     da9 drivers/tty/serial/amba-pl010.o
   3169     272      64    3505     db1 drivers/tty/serial/amba-pl010.o

   3109     456       0    3565     ded drivers/tty/serial/efm32-uart.o
   3301     272       0    3573     df5 drivers/tty/serial/efm32-uart.o

  10668     753       1   11422    2c9e drivers/tty/serial/icom.o
  10860     561       1   11422    2c9e drivers/tty/serial/icom.o

  23904     408       8   24320    5f00 drivers/tty/serial/ioc3_serial.o
  24088     224       8   24320    5f00 drivers/tty/serial/ioc3_serial.o

  10516     560       4   11080    2b48 drivers/tty/serial/ioc4_serial.o
  10709     368       4   11081    2b49 drivers/tty/serial/ioc4_serial.o

   7853     648    1216    9717    25f5 drivers/tty/serial/mpsc.o
   8037     456    1216    9709    25ed drivers/tty/serial/mpsc.o

  10248     456       0   10704    29d0 drivers/tty/serial/omap-serial.o
  10440     272       0   10712    29d8 drivers/tty/serial/omap-serial.o

   8122     532    1984   10638    298e drivers/tty/serial/pmac_zilog.o
   8306     340    1984   10630    2986 drivers/tty/serial/pmac_zilog.o

   3808     456       0    4264    10a8 drivers/tty/serial/pxa.o
   4000     264       0    4264    10a8 drivers/tty/serial/pxa.o

  21781    3864       0   25645    642d drivers/tty/serial/serial-tegra.o
  22037    3608       0   25645    642d drivers/tty/serial/serial-tegra.o

   2481     456      96    3033     bd9 drivers/tty/serial/sprd_serial.o
   2673     272      96    3041     be1 drivers/tty/serial/sprd_serial.o

   5534     300     512    6346    18ca drivers/tty/serial/vr41xx_siu.o
   5630     204     512    6346    18ca drivers/tty/serial/vr41xx_siu.o

   6730    1576     128    8434    20f2 drivers/tty/serial/vt8500_serial.o
   6986    1320     128    8434    20f2 drivers/tty/serial/vt8500_serial.o

Cross compiled for mips architecture.

   3005     488       0    3493     da5 drivers/tty/serial/pnx8xxx_uart.o
   3189     304       0    3493     da5 drivers/tty/serial/pnx8xxx_uart.o

   4272     196    1056    5524    1594 drivers/tty/serial/dz.o
   4368     100    1056    5524    1594 drivers/tty/serial/dz.o

   6551     144      16    6711    1a37 drivers/tty/serial/ip22zilog.o
   6647      48      16    6711    1a37 drivers/tty/serial/ip22zilog.o

   9612     428    1520   11560    2d28 drivers/tty/serial/serial_txx9.o
   9708     332    1520   11560    2d28 drivers/tty/serial/serial_txx9.o

   4156     296      16    4468    1174 drivers/tty/serial/ar933x_uart.o
   4252     200      16    4468    1174 drivers/tty/serial/ar933x_uart.o

Cross compiled for arm archiecture.

  11716    1780      44   13540    34e4 drivers/tty/serial/sirfsoc_uart.o
  11808    1688      44   13540    34e4 drivers/tty/serial/sirfsoc_uart.o

  13352     596      56   14004    36b4 drivers/tty/serial/amba-pl011.o
  13444     504      56   14004    36b4 drivers/tty/serial/amba-pl011.o

Cross compiled for sparc architecture.

   4664     528      32    5224    1468 drivers/tty/serial/sunhv.o
   4848     344      32    5224    1468 drivers/tty/serial/sunhv.o

   8080     332      28    8440    20f8 drivers/tty/serial/sunzilog.o
   8184     228      28    8440    20f8 drivers/tty/serial/sunzilog.o

Cross compiled for ia64 architecture.

  10226     549     472   11247    2bef drivers/tty/serial/sn_console.o
  10414     365     472   11251    2bf3 drivers/tty/serial/sn_console.o

The files drivers/tty/serial/zs.o, drivers/tty/serial/lpc32xx_hs.o and
drivers/tty/serial/lantiq.o did not compile.

Signed-off-by: Bhumika Goyal <bhumi...@gmail.com>
---
 drivers/tty/serial/amba-pl010.c    | 2 +-
 drivers/tty/serial/amba-pl011.c    | 2 +-
 drivers/tty/serial/ar933x_uart.c   | 2 +-
 drivers/tty/serial/dz.c            | 2 +-
 drivers/tty/serial/efm32-uart.c    | 2 +-
 drivers/tty/serial/icom.c          | 2 +-
 drivers/tty/serial/ioc3_serial.c   | 2 +-
 drivers/tty/serial/ioc4_serial.c   | 2 +-
 drivers/tty/serial/ip22zilog.c     | 2 +-
 drivers/tty/serial/lantiq.c        | 2 +-
 drivers/tty/serial/lpc32xx_hs.c    | 2 +-
 drivers/tty/serial/mpsc.c          | 2 +-
 drivers/tty/serial/omap-serial.c   | 2 +-
 drivers/tty/serial/pmac_zilog.c    | 2 +-
 drivers/tty/serial/pnx8xxx_uart.c  | 2 +-
 drivers/tty/serial/pxa.c           | 2 +-
 drivers/tty/serial/serial-tegra.c  | 2 +-
 drivers/tty/serial/serial_txx9.c   | 2 +-
 drivers/tty/serial/sirfsoc_uart.c  | 2 +-
 drivers/tty/serial/sn_console.c    | 2 +-
 drivers/tty/serial/sprd_serial.c   | 2 +-
 drivers/tty/serial/sunhv.c         | 2 +-
 drivers/tty/serial/sunzilog.c      | 2 +-
 drivers/tty/serial/vr41xx_siu.c    | 2 +-
 drivers/tty/serial/vt8500_serial.c | 2 +-
 drivers/tty/serial/zs.c            | 2 +-
 26 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 5d41d5b..f2f2510 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -554,7 +554,7 @@ static int pl010_verify_port(struct uart_port *port, struct 
serial_struct *ser)
        return ret;
 }
 
-static struct uart_ops amba_pl010_pops = {
+static const struct uart_ops amba_pl010_pops = {
        .tx_empty       = pl010_tx_empty,
        .set_mctrl      = pl010_set_mctrl,
        .get_mctrl      = pl010_get_mctrl,
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index d4171d7..d3b3f02 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2114,7 +2114,7 @@ static int pl011_verify_port(struct uart_port *port, 
struct serial_struct *ser)
        return ret;
 }
 
-static struct uart_ops amba_pl011_pops = {
+static const struct uart_ops amba_pl011_pops = {
        .tx_empty       = pl011_tx_empty,
        .set_mctrl      = pl011_set_mctrl,
        .get_mctrl      = pl011_get_mctrl,
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c
index 73137f4..decc7f3 100644
--- a/drivers/tty/serial/ar933x_uart.c
+++ b/drivers/tty/serial/ar933x_uart.c
@@ -493,7 +493,7 @@ static int ar933x_uart_verify_port(struct uart_port *port,
        return 0;
 }
 
-static struct uart_ops ar933x_uart_ops = {
+static const struct uart_ops ar933x_uart_ops = {
        .tx_empty       = ar933x_uart_tx_empty,
        .set_mctrl      = ar933x_uart_set_mctrl,
        .get_mctrl      = ar933x_uart_get_mctrl,
diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index c121f16..ff465ff 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -739,7 +739,7 @@ static int dz_verify_port(struct uart_port *uport, struct 
serial_struct *ser)
        return ret;
 }
 
-static struct uart_ops dz_ops = {
+static const struct uart_ops dz_ops = {
        .tx_empty       = dz_tx_empty,
        .get_mctrl      = dz_get_mctrl,
        .set_mctrl      = dz_set_mctrl,
diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c
index 195acc8..ebd8569 100644
--- a/drivers/tty/serial/efm32-uart.c
+++ b/drivers/tty/serial/efm32-uart.c
@@ -487,7 +487,7 @@ static int efm32_uart_verify_port(struct uart_port *port,
        return ret;
 }
 
-static struct uart_ops efm32_uart_pops = {
+static const struct uart_ops efm32_uart_pops = {
        .tx_empty = efm32_uart_tx_empty,
        .set_mctrl = efm32_uart_set_mctrl,
        .get_mctrl = efm32_uart_get_mctrl,
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index d83783c..fe92d74 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -1286,7 +1286,7 @@ static void icom_config_port(struct uart_port *port, int 
flags)
        port->type = PORT_ICOM;
 }
 
-static struct uart_ops icom_ops = {
+static const struct uart_ops icom_ops = {
        .tx_empty = icom_tx_empty,
        .set_mctrl = icom_set_mctrl,
        .get_mctrl = icom_get_mctrl,
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c
index 27b5fef..2a61dd6 100644
--- a/drivers/tty/serial/ioc3_serial.c
+++ b/drivers/tty/serial/ioc3_serial.c
@@ -1873,7 +1873,7 @@ static int ic3_request_port(struct uart_port *port)
 }
 
 /* Associate the uart functions above - given to serial core */
-static struct uart_ops ioc3_ops = {
+static const struct uart_ops ioc3_ops = {
        .tx_empty = ic3_tx_empty,
        .set_mctrl = ic3_set_mctrl,
        .get_mctrl = ic3_get_mctrl,
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
index 3be051abb..6ad26f8 100644
--- a/drivers/tty/serial/ioc4_serial.c
+++ b/drivers/tty/serial/ioc4_serial.c
@@ -2596,7 +2596,7 @@ static int ic4_request_port(struct uart_port *port)
 
 /* Associate the uart functions above - given to serial core */
 
-static struct uart_ops ioc4_ops = {
+static const struct uart_ops ioc4_ops = {
        .tx_empty       = ic4_tx_empty,
        .set_mctrl      = ic4_set_mctrl,
        .get_mctrl      = ic4_get_mctrl,
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index 991e6dc..7ddddb4 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -930,7 +930,7 @@ static int ip22zilog_verify_port(struct uart_port *port, 
struct serial_struct *s
        return -EINVAL;
 }
 
-static struct uart_ops ip22zilog_pops = {
+static const struct uart_ops ip22zilog_pops = {
        .tx_empty       =       ip22zilog_tx_empty,
        .set_mctrl      =       ip22zilog_set_mctrl,
        .get_mctrl      =       ip22zilog_get_mctrl,
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index b88832e..d34398e 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -557,7 +557,7 @@ lqasc_verify_port(struct uart_port *port,
        return ret;
 }
 
-static struct uart_ops lqasc_pops = {
+static const struct uart_ops lqasc_pops = {
        .tx_empty =     lqasc_tx_empty,
        .set_mctrl =    lqasc_set_mctrl,
        .get_mctrl =    lqasc_get_mctrl,
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
index 7eb04ae..cea57ff 100644
--- a/drivers/tty/serial/lpc32xx_hs.c
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -645,7 +645,7 @@ static int serial_lpc32xx_verify_port(struct uart_port 
*port,
        return ret;
 }
 
-static struct uart_ops serial_lpc32xx_pops = {
+static const struct uart_ops serial_lpc32xx_pops = {
        .tx_empty       = serial_lpc32xx_tx_empty,
        .set_mctrl      = serial_lpc32xx_set_mctrl,
        .get_mctrl      = serial_lpc32xx_get_mctrl,
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 4a3021b..1a60a20 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -1670,7 +1670,7 @@ static void mpsc_put_poll_char(struct uart_port *port,
 }
 #endif
 
-static struct uart_ops mpsc_pops = {
+static const struct uart_ops mpsc_pops = {
        .tx_empty       = mpsc_tx_empty,
        .set_mctrl      = mpsc_set_mctrl,
        .get_mctrl      = mpsc_get_mctrl,
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index a2a5299..96dd99c 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1395,7 +1395,7 @@ serial_omap_config_rs485(struct uart_port *port, struct 
serial_rs485 *rs485)
        return 0;
 }
 
-static struct uart_ops serial_omap_pops = {
+static const struct uart_ops serial_omap_pops = {
        .tx_empty       = serial_omap_tx_empty,
        .set_mctrl      = serial_omap_set_mctrl,
        .get_mctrl      = serial_omap_get_mctrl,
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index b24b055..0da5294 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1379,7 +1379,7 @@ static void pmz_poll_put_char(struct uart_port *port, 
unsigned char c)
 
 #endif /* CONFIG_CONSOLE_POLL */
 
-static struct uart_ops pmz_pops = {
+static const struct uart_ops pmz_pops = {
        .tx_empty       =       pmz_tx_empty,
        .set_mctrl      =       pmz_set_mctrl,
        .get_mctrl      =       pmz_get_mctrl,
diff --git a/drivers/tty/serial/pnx8xxx_uart.c 
b/drivers/tty/serial/pnx8xxx_uart.c
index 7a3bb9c..dab2668 100644
--- a/drivers/tty/serial/pnx8xxx_uart.c
+++ b/drivers/tty/serial/pnx8xxx_uart.c
@@ -631,7 +631,7 @@ pnx8xxx_verify_port(struct uart_port *port, struct 
serial_struct *ser)
        return ret;
 }
 
-static struct uart_ops pnx8xxx_pops = {
+static const struct uart_ops pnx8xxx_pops = {
        .tx_empty       = pnx8xxx_tx_empty,
        .set_mctrl      = pnx8xxx_set_mctrl,
        .get_mctrl      = pnx8xxx_get_mctrl,
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 7595281..905631d 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -762,7 +762,7 @@ static struct console serial_pxa_console = {
 #define PXA_CONSOLE    NULL
 #endif
 
-static struct uart_ops serial_pxa_pops = {
+static const struct uart_ops serial_pxa_pops = {
        .tx_empty       = serial_pxa_tx_empty,
        .set_mctrl      = serial_pxa_set_mctrl,
        .get_mctrl      = serial_pxa_get_mctrl,
diff --git a/drivers/tty/serial/serial-tegra.c 
b/drivers/tty/serial/serial-tegra.c
index 731ac35..d92a150 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1191,7 +1191,7 @@ static const char *tegra_uart_type(struct uart_port *u)
        return TEGRA_UART_TYPE;
 }
 
-static struct uart_ops tegra_uart_ops = {
+static const struct uart_ops tegra_uart_ops = {
        .tx_empty       = tegra_uart_tx_empty,
        .set_mctrl      = tegra_uart_set_mctrl,
        .get_mctrl      = tegra_uart_get_mctrl,
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index f80312e..f80fead 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -845,7 +845,7 @@ serial_txx9_type(struct uart_port *port)
        return "txx9";
 }
 
-static struct uart_ops serial_txx9_pops = {
+static const struct uart_ops serial_txx9_pops = {
        .tx_empty       = serial_txx9_tx_empty,
        .set_mctrl      = serial_txx9_set_mctrl,
        .get_mctrl      = serial_txx9_get_mctrl,
diff --git a/drivers/tty/serial/sirfsoc_uart.c 
b/drivers/tty/serial/sirfsoc_uart.c
index b186c9c..e03282d 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -1061,7 +1061,7 @@ static void sirfsoc_uart_config_port(struct uart_port 
*port, int flags)
        }
 }
 
-static struct uart_ops sirfsoc_uart_ops = {
+static const struct uart_ops sirfsoc_uart_ops = {
        .tx_empty       = sirfsoc_uart_tx_empty,
        .get_mctrl      = sirfsoc_uart_get_mctrl,
        .set_mctrl      = sirfsoc_uart_set_mctrl,
diff --git a/drivers/tty/serial/sn_console.c b/drivers/tty/serial/sn_console.c
index d4692d8..9e0e658 100644
--- a/drivers/tty/serial/sn_console.c
+++ b/drivers/tty/serial/sn_console.c
@@ -380,7 +380,7 @@ static void snp_config_port(struct uart_port *port, int 
flags)
 
 /* Associate the uart functions above - given to serial core */
 
-static struct uart_ops sn_console_ops = {
+static const struct uart_ops sn_console_ops = {
        .tx_empty = snp_tx_empty,
        .set_mctrl = snp_set_mctrl,
        .get_mctrl = snp_get_mctrl,
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index 699447a..d98e3dc 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -498,7 +498,7 @@ static int sprd_verify_port(struct uart_port *port,
        return 0;
 }
 
-static struct uart_ops serial_sprd_ops = {
+static const struct uart_ops serial_sprd_ops = {
        .tx_empty = sprd_tx_empty,
        .get_mctrl = sprd_get_mctrl,
        .set_mctrl = sprd_set_mctrl,
diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index 99ef5c6..73abd89 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -370,7 +370,7 @@ static int sunhv_verify_port(struct uart_port *port, struct 
serial_struct *ser)
        return -EINVAL;
 }
 
-static struct uart_ops sunhv_pops = {
+static const struct uart_ops sunhv_pops = {
        .tx_empty       = sunhv_tx_empty,
        .set_mctrl      = sunhv_set_mctrl,
        .get_mctrl      = sunhv_get_mctrl,
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 8b6ace3..252cea4 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1046,7 +1046,7 @@ static void sunzilog_put_poll_char(struct uart_port *port,
 }
 #endif /* CONFIG_CONSOLE_POLL */
 
-static struct uart_ops sunzilog_pops = {
+static const struct uart_ops sunzilog_pops = {
        .tx_empty       =       sunzilog_tx_empty,
        .set_mctrl      =       sunzilog_set_mctrl,
        .get_mctrl      =       sunzilog_get_mctrl,
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index 485de53..439057e 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -681,7 +681,7 @@ static int siu_verify_port(struct uart_port *port, struct 
serial_struct *serial)
        return 0;
 }
 
-static struct uart_ops siu_uart_ops = {
+static const struct uart_ops siu_uart_ops = {
        .tx_empty       = siu_tx_empty,
        .set_mctrl      = siu_set_mctrl,
        .get_mctrl      = siu_get_mctrl,
diff --git a/drivers/tty/serial/vt8500_serial.c 
b/drivers/tty/serial/vt8500_serial.c
index 6b85adc..435a6f3 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -592,7 +592,7 @@ static void vt8500_put_poll_char(struct uart_port *port, 
unsigned char c)
 }
 #endif
 
-static struct uart_ops vt8500_uart_pops = {
+static const struct uart_ops vt8500_uart_pops = {
        .tx_empty       = vt8500_tx_empty,
        .set_mctrl      = vt8500_set_mctrl,
        .get_mctrl      = vt8500_get_mctrl,
diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c
index eeefd76..d32bd49 100644
--- a/drivers/tty/serial/zs.c
+++ b/drivers/tty/serial/zs.c
@@ -1045,7 +1045,7 @@ static int zs_verify_port(struct uart_port *uport, struct 
serial_struct *ser)
 }
 
 
-static struct uart_ops zs_ops = {
+static const struct uart_ops zs_ops = {
        .tx_empty       = zs_tx_empty,
        .set_mctrl      = zs_set_mctrl,
        .get_mctrl      = zs_get_mctrl,
-- 
2.7.4

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