[PATCH 3/5] input: make PCI device id constant

From: NÃmeth MÃrton
Date: Sat Jan 09 2010 - 07:56:42 EST


From: MÃrton NÃmeth <nm127@xxxxxxxxxxx>

The id_table field of the struct pci_driver is constant in <linux/pci.h>
so it is worth to make 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: MÃrton NÃmeth <nm127@xxxxxxxxxxx>
Cc: Julia Lawall <julia@xxxxxxx>
Cc: cocci@xxxxxxx
---
diff -u -p a/drivers/input/serio/pcips2.c b/drivers/input/serio/pcips2.c
--- a/drivers/input/serio/pcips2.c 2009-12-03 04:51:21.000000000 +0100
+++ b/drivers/input/serio/pcips2.c 2010-01-08 19:12:05.000000000 +0100
@@ -186,7 +186,7 @@ static void __devexit pcips2_remove(stru
pci_disable_device(dev);
}

-static struct pci_device_id pcips2_ids[] = {
+static const struct pci_device_id pcips2_ids[] = {
{
.vendor = 0x14f2, /* MOBILITY */
.device = 0x0123, /* Keyboard */
diff -u -p a/drivers/input/gameport/fm801-gp.c b/drivers/input/gameport/fm801-gp.c
--- a/drivers/input/gameport/fm801-gp.c 2009-12-03 04:51:21.000000000 +0100
+++ b/drivers/input/gameport/fm801-gp.c 2010-01-08 19:22:57.000000000 +0100
@@ -140,7 +140,7 @@ static void __devexit fm801_gp_remove(st
}
}

-static struct pci_device_id fm801_gp_id_table[] = {
+static const struct pci_device_id fm801_gp_id_table[] = {
{ PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0 }
};
diff -u -p a/drivers/input/gameport/emu10k1-gp.c b/drivers/input/gameport/emu10k1-gp.c
--- a/drivers/input/gameport/emu10k1-gp.c 2009-12-03 04:51:21.000000000 +0100
+++ b/drivers/input/gameport/emu10k1-gp.c 2010-01-08 19:23:20.000000000 +0100
@@ -46,7 +46,7 @@ struct emu {
int size;
};

-static struct pci_device_id emu_tbl[] = {
+static const struct pci_device_id emu_tbl[] = {

{ 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
{ 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
--
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