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Subject[PATCH] pcmcia: make Open Firmware device id constant
From: Márton Németh <nm127@freemail.hu>

The match_table field of the struct of_device_id is constant in <linux/of_platform.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/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c
--- a/drivers/pcmcia/electra_cf.c 2009-12-03 04:51:21.000000000 +0100
+++ b/drivers/pcmcia/electra_cf.c 2010-01-08 14:35:41.000000000 +0100
@@ -347,7 +347,7 @@ static int __devexit electra_cf_remove(s
return 0;
}

-static struct of_device_id electra_cf_match[] = {
+static const struct of_device_id electra_cf_match[] = {
{
.compatible = "electra-cf",
},
diff -u -p a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c
--- a/drivers/pcmcia/m8xx_pcmcia.c 2010-01-07 19:08:44.000000000 +0100
+++ b/drivers/pcmcia/m8xx_pcmcia.c 2010-01-08 14:36:19.000000000 +0100
@@ -1303,7 +1303,7 @@ static int m8xx_resume(struct platform_d
#define m8xx_resume NULL
#endif

-static struct of_device_id m8xx_pcmcia_match[] = {
+static const struct of_device_id m8xx_pcmcia_match[] = {
{
.type = "pcmcia",
.compatible = "fsl,pq-pcmcia",
--
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