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Message-ID: <4B491B17.5070305@freemail.hu>
Date:	Sun, 10 Jan 2010 01:11:03 +0100
From:	Németh Márton <nm127@...email.hu>
To:	Richard Purdie <rpurdie@...ys.net>
CC:	LKML <linux-kernel@...r.kernel.org>, Julia Lawall <julia@...u.dk>,
	cocci@...u.dk
Subject: [PATCH] leds: make PCI device id constant

From: Márton Németh <nm127@...email.hu>

The id_table field of the struct pci_driver is constant in <linux/pci.h>
so it is worth to make pci_device_id 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@...email.hu>
Cc: Julia Lawall <julia@...u.dk>
Cc: cocci@...u.dk
---
diff -u -p a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
--- a/drivers/leds/leds-ss4200.c 2010-01-07 19:08:40.000000000 +0100
+++ b/drivers/leds/leds-ss4200.c 2010-01-08 11:25:42.000000000 +0100
@@ -63,7 +63,7 @@ MODULE_LICENSE("GPL");
 /*
  * PCI ID of the Intel ICH7 LPC Device within which the GPIO block lives.
  */
-static struct pci_device_id ich7_lpc_pci_id[] =
+static const struct pci_device_id ich7_lpc_pci_id[] =
 {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1) },
--
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