Jan 04 2010

8139too: make PCI device ids constant 

Author: Márton Németh <nm127@freemail.hu>

The id_table field of the struct pci_driver is constant in 
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/)

// 
@r@
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[] = ...;
// 

Signed-off-by: Márton Németh 
Cc: Julia Lawall 
Cc: cocci@diku.dk
Signed-off-by: David S. Miller 

---
 drivers/net/8139too.c      | 2 +-
 drivers/net/pci-skeleton.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
 
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index 25f7339..907f2d5 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -231,7 +231,7 @@ static const struct {
 };
 
 
-static struct pci_device_id rtl8139_pci_tbl[] = {
+static const struct pci_device_id rtl8139_pci_tbl[] = {
 	{0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
 	{0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
 	{0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
diff --git a/drivers/net/pci-skeleton.c b/drivers/net/pci-skeleton.c
index 480af40..8ff5536 100644
--- a/drivers/net/pci-skeleton.c
+++ b/drivers/net/pci-skeleton.c
@@ -211,7 +211,7 @@ static struct {
 };
 
 
-static struct pci_device_id netdrv_pci_tbl[] = {
+static const struct pci_device_id netdrv_pci_tbl[] = {
 	{0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
 	{0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, NETDRV_CB },
 	{0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SMC1211TX },

qlambert