tty: xuartps: constify uart_ops structures

Check for uart_ops structures that are only stored in the ops field of a
uart_port structure.  This field is declared const, so uart_ops structures
that have this property can be declared as const also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct uart_ops i@p = { ... };

@ok@
identifier r.i;
struct uart_port e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct uart_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct uart_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 9ca1a4d1b66a1e02186a438af498a4ac2ec5ea29..11a2b36e14bbb3a4688d06456c88d813c4f9b005 100644 (file)
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -993,7 +993,7 @@ static void cdns_uart_pm(struct uart_port *port, unsigned int state,
        }
 }
 
-static struct uart_ops cdns_uart_ops = {
+static const struct uart_ops cdns_uart_ops = {
        .set_mctrl      = cdns_uart_set_mctrl,
        .get_mctrl      = cdns_uart_get_mctrl,
        .start_tx       = cdns_uart_start_tx,