[PATCH] pcmcia: remove client services version

The Linux PCMCIA code has some data that was apparently used (or meant to be
used) to ensure that only proper client drivers are loaded.  This is now
ensured (to a certain degree) by the fact that the most client drivers are
part of the kernel.  Also, the version information has not been updated
despite major changes in PCMCIA API.  This has made it meaningless.

This patch removes servinfo_t and pcmcia_get_card_services_info.  They are not
used in any userspace utilities such as pcmcia-cs and pcmciautils.
drivers/pcmcia/pcmcia_ioctl.c is adjusted accordingly.

CS_RELEASE and CS_RELEASE_CODE are removed.  include/pcmcia/version.h is empty
now.  It will be removed later, but for now it's left in the tree to avoid
touching all PCMCIA clients.

The only driver that needs to be changed is drivers/scsi/pcmcia/nsp_cs.c,
which uses CS_RELEASE_CODE.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/pcmcia/pcmcia_ioctl.c

@@ -71,29 +71,6 @@ extern int ds_pc_debug;
 #define ds_dbg(lvl, fmt, arg...) do { } while (0)
 #endif
 
-static const char *release = "Linux Kernel Card Services";
-
-/** pcmcia_get_card_services_info
- *
- * Return information about this version of Card Services
- */
-static int pcmcia_get_card_services_info(servinfo_t *info)
-{
-	unsigned int socket_count = 0;
-	struct list_head *tmp;
-	info->Signature[0] = 'C';
-	info->Signature[1] = 'S';
-	down_read(&pcmcia_socket_list_rwsem);
-	list_for_each(tmp, &pcmcia_socket_list)
-		socket_count++;
-	up_read(&pcmcia_socket_list_rwsem);
-	info->Count = socket_count;
-	info->Revision = CS_RELEASE_CODE;
-	info->CSLevel = 0x0210;
-	info->VendorString = (char *)release;
-	return CS_SUCCESS;
-} /* get_card_services_info */
-
 
 /* backwards-compatible accessing of driver --- by name! */
 
@@ -591,9 +568,6 @@ static int ds_ioctl(struct inode * inode, struct file * file,
     case DS_ADJUST_RESOURCE_INFO:
 	ret = pcmcia_adjust_resource_info(&buf->adjust);
 	break;
-    case DS_GET_CARD_SERVICES_INFO:
-	ret = pcmcia_get_card_services_info(&buf->servinfo);
-	break;
     case DS_GET_CONFIGURATION_INFO:
 	if (buf->config.Function &&
 	   (buf->config.Function >= s->functions))

drivers/scsi/pcmcia/nsp_cs.c

@@ -2155,10 +2155,6 @@ static int __init nsp_cs_init(void)
 
 	nsp_msg(KERN_INFO, "loading...");
 	pcmcia_get_card_services_info(&serv);
-	if (serv.Revision != CS_RELEASE_CODE) {
-		nsp_msg(KERN_DEBUG, "Card Services release does not match!");
-		return -EINVAL;
-	}
 	register_pcmcia_driver(&dev_info, &nsp_cs_attach, &nsp_cs_detach);
 
 	nsp_dbg(NSP_DEBUG_INIT, "out");

include/pcmcia/cs.h

@@ -68,14 +68,6 @@ typedef struct adjust_t {
 #define RES_ALLOCATED			0x20
 #define RES_REMOVED			0x40
 
-typedef struct servinfo_t {
-    char	Signature[2];
-    u_int	Count;
-    u_int	Revision;
-    u_int	CSLevel;
-    char	*VendorString;
-} servinfo_t;
-
 typedef struct event_callback_args_t {
 	struct pcmcia_device	*client_handle;
 	void			*client_data;

include/pcmcia/ds.h

@@ -49,7 +49,6 @@ typedef struct mtd_info_t {
 } mtd_info_t;
 
 typedef union ds_ioctl_arg_t {
-    servinfo_t		servinfo;
     adjust_t		adjust;
     config_info_t	config;
     tuple_t		tuple;
@@ -65,7 +64,6 @@ typedef union ds_ioctl_arg_t {
     cisdump_t		cisdump;
 } ds_ioctl_arg_t;
 
-#define DS_GET_CARD_SERVICES_INFO	_IOR ('d', 1, servinfo_t)
 #define DS_ADJUST_RESOURCE_INFO		_IOWR('d', 2, adjust_t)
 #define DS_GET_CONFIGURATION_INFO	_IOWR('d', 3, config_info_t)
 #define DS_GET_FIRST_TUPLE		_IOWR('d', 4, tuple_t)

include/pcmcia/version.h

 /* version.h 1.94 2000/10/03 17:55:48 (David Hinds) */
 
-#define CS_RELEASE "3.1.22"
-#define CS_RELEASE_CODE 0x3116
+/* This file will be removed, please don't include it */