From: "Németh Márton" <nm127@freemail.hu>
To: linux-serial@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>, cocci@diku.dk
Subject: [PATCH 2/3] serial: make dio device id constant
Date: Sun, 10 Jan 2010 17:59:36 +0100 [thread overview]
Message-ID: <4B4A0778.2000508@freemail.hu> (raw)
From: Márton Németh <nm127@freemail.hu>
The id_table field of the struct dio_driver is constant in <linux/dio.h>
so it is worth to make the initialization data also constant.
The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
...
const struct I2 *x;
...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
.x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>
Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
---
diff -u -p a/drivers/serial/8250_hp300.c b/drivers/serial/8250_hp300.c
--- a/drivers/serial/8250_hp300.c 2009-12-03 04:51:21.000000000 +0100
+++ b/drivers/serial/8250_hp300.c 2010-01-08 18:52:23.000000000 +0100
@@ -39,7 +39,7 @@ static int __devinit hpdca_init_one(stru
const struct dio_device_id *ent);
static void __devexit hpdca_remove_one(struct dio_dev *d);
-static struct dio_device_id hpdca_dio_tbl[] = {
+static const struct dio_device_id hpdca_dio_tbl[] = {
{ DIO_ID_DCA0 },
{ DIO_ID_DCA0REM },
{ DIO_ID_DCA1 },
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reply other threads:[~2010-01-10 16:59 UTC|newest]
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