Commit 1bd4f29d0af5b4b1c022d8fded14665dd5932905

Authored by Németh Márton
Committed by Greg Kroah-Hartman
1 parent 94089d56e4

USB skeleton: 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: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

drivers/usb/usb-skeleton.c
... ... @@ -28,7 +28,7 @@
28 28 #define USB_SKEL_PRODUCT_ID 0xfff0
29 29  
30 30 /* table of devices that work with this driver */
31   -static struct usb_device_id skel_table[] = {
  31 +static const struct usb_device_id skel_table[] = {
32 32 { USB_DEVICE(USB_SKEL_VENDOR_ID, USB_SKEL_PRODUCT_ID) },
33 33 { } /* Terminating entry */
34 34 };