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authorMárton Németh <nm127@freemail.hu>2010-01-10 17:59:22 +0100
committerJiri Kosina <jkosina@suse.cz>2010-01-12 14:34:43 +0100
commitd67dec5b2cc208215de21dc7806945bf6a6e85d0 (patch)
tree951b30ef1692664fe05fc75f6ad44f8e9d41e138 /drivers/hid/usbhid
parent54a6593d65e638ad7e1e8cc986159d76054dab4b (diff)
downloadlinux-d67dec5b2cc208215de21dc7806945bf6a6e85d0.tar.gz
HID: make USB device id constant
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;
@@
+	const
	struct I2 E[] = ...;
// </smpl>

Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/usbhid')
-rw-r--r--drivers/hid/usbhid/hid-core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 0258289f3b3e..e72751d6e3e7 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1342,7 +1342,7 @@ static int hid_reset_resume(struct usb_interface *intf)
 
 #endif /* CONFIG_PM */
 
-static struct usb_device_id hid_usb_ids [] = {
+static const struct usb_device_id hid_usb_ids[] = {
 	{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
 		.bInterfaceClass = USB_INTERFACE_CLASS_HID },
 	{ }						/* Terminating entry */