pcmcia: Change window_handle_t logic to unsigned long

Logic changes based on top of the other patches:

This set of patches changed window_handle_t from being a pointer to an
unsigned long. The unsigned long is now a simple index into socket->win[].
Going from a pointer to unsigned long should leave the user space interface
unchanged unless I'm mistaken.

This change results in code that is less error prone and a user space
interface which is much cleaner and safer. A nice side effect is that we
are also are able to remove all members except one from window_t.

[ linux@dominikbrodowski.net:
	Update to 2.6.31. Also, a plain "index" to socket->win[] does not
	work, as several codepaths rely on "window_handle_t" being
	non-zero if used. Therefore, set the window_handle_t to the
	socket->win[] index + 1. ]

CC: netdev@vger.kernel.org
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

include/pcmcia/cs_types.h

@@ -26,8 +26,7 @@ typedef u_int	event_t;
 typedef u_char	cisdata_t;
 typedef u_short	page_t;
 
-struct window_t;
-typedef struct window_t *window_handle_t;
+typedef unsigned long window_handle_t;
 
 struct region_t;
 typedef struct region_t *memory_handle_t;

include/pcmcia/ss.h

@@ -107,12 +107,7 @@ typedef struct io_window_t {
 	struct resource		*res;
 } io_window_t;
 
-#define WINDOW_MAGIC	0xB35C
 typedef struct window_t {
-	u_short			magic;
-	u_short			index;
-	struct pcmcia_device	*handle;
-	struct pcmcia_socket 	*sock;
 	pccard_mem_map		ctl;
 } window_t;