[PATCH 2/3] nand: make USB device id constant

From: NÃmeth MÃrton
Date: Sat Jan 09 2010 - 09:10:59 EST


From: MÃrton NÃmeth <nm127@xxxxxxxxxxx>

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make alauda_table 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: MÃrton NÃmeth <nm127@xxxxxxxxxxx>
Cc: Julia Lawall <julia@xxxxxxx>
Cc: cocci@xxxxxxx
---
diff -u -p a/drivers/mtd/nand/alauda.c b/drivers/mtd/nand/alauda.c
--- a/drivers/mtd/nand/alauda.c 2010-01-07 19:08:42.000000000 +0100
+++ b/drivers/mtd/nand/alauda.c 2010-01-08 04:26:29.000000000 +0100
@@ -49,7 +49,7 @@

#define TIMEOUT HZ

-static struct usb_device_id alauda_table [] = {
+static const struct usb_device_id alauda_table[] = {
{ USB_DEVICE(0x0584, 0x0008) }, /* Fujifilm DPC-R1 */
{ USB_DEVICE(0x07b4, 0x010a) }, /* Olympus MAUSB-10 */
{ }
--
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