isdn: make USB device id constant

From: Márton Németh <[email protected]>

The id_table field of the struct usb_device_id is constant in <linux/usb.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;
@@

(quoted diff) +1 -0

+	const

	struct I2 E[] = ...;

// </smpl>

Signed-off-by Márton Németh <[email protected]>

Cc Julia Lawall <[email protected]>

Cc [email protected]

---
diff -u -p a/drivers/isdn/hardware/mISDN/hfcsusb.h b/drivers/isdn/hardware/mISDN/hfcsusb.h

drivers/isdn/hardware/mISDN/hfcsusb.h 2010-01-08 13:36:54.000000000 +0100 renamed from drivers/isdn/hardware/mISDN/hfcsusb.h 2010-01-07 19:08:40.000000000 +0100 +1 -1

@@ -337,7 +337,7 @@ static const char *HFC_NT_LAYER1_STATES[
 };
 
 /* supported devices */
-static struct usb_device_id hfcsusb_idtab[] = {
+static const struct usb_device_id hfcsusb_idtab[] = {
 	{
 	 USB_DEVICE(0x0959, 0x2bd0),
 	 .driver_info = (unsigned long) &((struct hfcsusb_vdata)

diff -u -p a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c

drivers/isdn/hisax/hfc_usb.c 2010-01-08 13:49:53.000000000 +0100 renamed from drivers/isdn/hisax/hfc_usb.c 2010-01-07 19:08:40.000000000 +0100 +1 -1

@@ -64,7 +64,7 @@ typedef struct {
 } hfcsusb_vdata;
 
 /* VID/PID device list */
-static struct usb_device_id hfcusb_idtab[] = {
+static const struct usb_device_id hfcusb_idtab[] = {
 	{
 	 USB_DEVICE(0x0959, 0x2bd0),
 	 .driver_info = (unsigned long) &((hfcsusb_vdata)

diff -u -p a/drivers/isdn/hisax/st5481_init.c b/drivers/isdn/hisax/st5481_init.c

drivers/isdn/hisax/st5481_init.c 2010-01-08 13:50:45.000000000 +0100 renamed from drivers/isdn/hisax/st5481_init.c 2009-12-03 04:51:21.000000000 +0100 +1 -2

@@ -160,7 +160,7 @@ static void disconnect_st5481(struct usb
 /*
  * The last 4 bits in the Product Id is set with 4 pins on the chip.
  */
-static struct usb_device_id st5481_ids[] = {
+static const struct usb_device_id st5481_ids[] = {
 	{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x0) },
 	{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x1) },
 	{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x2) },
--

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