[PATCH 1/9] serial: st-asc: constify uart_ops structures
Julia Lawall
Julia.Lawall at lip6.fr
Thu Sep 1 10:51:30 PDT 2016
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 at p = { ... };
@ok@
identifier r.i;
struct uart_port e;
position p;
@@
e.ops = &i at p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct uart_ops e;
@@
e at 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 at lip6.fr>
---
drivers/tty/serial/st-asc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index 2d78cb3..379e5bd 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -639,7 +639,7 @@ static void asc_put_poll_char(struct uart_port *port, unsigned char c)
/*---------------------------------------------------------------------*/
-static struct uart_ops asc_uart_ops = {
+static const struct uart_ops asc_uart_ops = {
.tx_empty = asc_tx_empty,
.set_mctrl = asc_set_mctrl,
.get_mctrl = asc_get_mctrl,
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