USB host: make Open Firmware device id constant
authorNémeth Márton <nm127@freemail.hu>
Sun, 10 Jan 2010 14:35:03 +0000 (15:35 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 2 Mar 2010 22:54:18 +0000 (14:54 -0800)
The match_table field of the struct of_device_id is constant in <linux/of_platform.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;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/host/ehci-ppc-of.c
drivers/usb/host/ehci-xilinx-of.c
drivers/usb/host/fhci-hcd.c
drivers/usb/host/isp1760-if.c
drivers/usb/host/ohci-ppc-of.c

index 36f96da129f5c637208031ec04913be3f0cc6e67..870b98e07208a518ab858f8cf14f95b5cba719a7 100644 (file)
@@ -264,7 +264,7 @@ static int ehci_hcd_ppc_of_shutdown(struct of_device *op)
 }
 
 
-static struct of_device_id ehci_hcd_ppc_of_match[] = {
+static const struct of_device_id ehci_hcd_ppc_of_match[] = {
        {
                .compatible = "usb-ehci",
        },
index a5861531ad3e052f596caf6d79c178ace0238b53..4937de7b9e56ad7e4b508e02a9899238844bcca0 100644 (file)
@@ -281,7 +281,7 @@ static int ehci_hcd_xilinx_of_shutdown(struct of_device *op)
 }
 
 
-static struct of_device_id ehci_hcd_xilinx_of_match[] = {
+static const struct of_device_id ehci_hcd_xilinx_of_match[] = {
                {.compatible = "xlnx,xps-usb-host-1.00.a",},
        {},
 };
index ed4b87c68e4fee95f7204672b4c07725d76cccb7..5dcfb3de9945788798b5fae2ce91a67706458e4d 100644 (file)
@@ -805,7 +805,7 @@ static int __devexit of_fhci_remove(struct of_device *ofdev)
        return fhci_remove(&ofdev->dev);
 }
 
-static struct of_device_id of_fhci_match[] = {
+static const struct of_device_id of_fhci_match[] = {
        { .compatible = "fsl,mpc8323-qe-usb", },
        {},
 };
index 1c9f977a5c9c4bcfa16b86a4f295360dfc8a1059..4293cfd28d61414b425a7cff2b5330a8b4d4e7aa 100644 (file)
@@ -109,7 +109,7 @@ static int of_isp1760_remove(struct of_device *dev)
        return 0;
 }
 
-static struct of_device_id of_isp1760_match[] = {
+static const struct of_device_id of_isp1760_match[] = {
        {
                .compatible = "nxp,usb-isp1760",
        },
index 68a301710297f6eeb32ec75538d17d1e12a14d92..2a7def16128d75c18c7f1d26d84748b658577b97 100644 (file)
@@ -212,7 +212,7 @@ static int ohci_hcd_ppc_of_shutdown(struct of_device *op)
 }
 
 
-static struct of_device_id ohci_hcd_ppc_of_match[] = {
+static const struct of_device_id ohci_hcd_ppc_of_match[] = {
 #ifdef CONFIG_USB_OHCI_HCD_PPC_OF_BE
        {
                .name = "usb",