[PATCH] pcmcia: embed dev_link_t into struct pcmcia_device

Embed dev_link_t into struct pcmcia_device(), as they basically address the
same entity. The actual contents of dev_link_t will be cleaned up step by step.
This patch includes a bugfix from and signed-off-by Andrew Morton.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

10 files changed, 108 insertions, 246 deletions

diff --git a/drivers/net/wireless/airo_cs.c b/drivers/net/wireless/airo_cs.c
index 2216c04a02af..836c71ff7762 100644
--- a/drivers/net/wireless/airo_cs.c
+++ b/drivers/net/wireless/airo_cs.c
@@ -143,22 +143,14 @@ typedef struct local_info_t {
 
 static int airo_attach(struct pcmcia_device *p_dev)
 {
-        dev_link_t *link;
         local_info_t *local;
 
         DEBUG(0, "airo_attach()\n");
 
-        /* Initialize the dev_link_t structure */
-        link = kzalloc(sizeof(struct dev_link_t), GFP_KERNEL);
-        if (!link) {
-                printk(KERN_ERR "airo_cs: no memory for new device\n");
-                return -ENOMEM;
-        }
-        
         /* Interrupt setup */
-        link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-        link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-        link->irq.Handler = NULL;
+        p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+        p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
+        p_dev->irq.Handler = NULL;
         
         /*
           General socket configuration defaults can go here.  In this
@@ -167,23 +159,19 @@ static int airo_attach(struct pcmcia_device *p_dev)
           and attributes of IO windows) are fixed by the nature of the
           device, and can be hard-wired here.
         */
-        link->conf.Attributes = 0;
-        link->conf.IntType = INT_MEMORY_AND_IO;
+        p_dev->conf.Attributes = 0;
+        p_dev->conf.IntType = INT_MEMORY_AND_IO;
         
         /* Allocate space for private device-specific data */
         local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
         if (!local) {
                 printk(KERN_ERR "airo_cs: no memory for new device\n");
-                kfree (link);
                 return -ENOMEM;
         }
-        link->priv = local;
-
-        link->handle = p_dev;
-        p_dev->instance = link;
+        p_dev->priv = local;
 
-        link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-        airo_config(link);
+        p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+        airo_config(p_dev);
 
         return 0;
 } /* airo_attach */
@@ -212,7 +200,6 @@ static void airo_detach(struct pcmcia_device *p_dev)
         ((local_info_t*)link->priv)->eth_dev = NULL;
 
         kfree(link->priv);
-        kfree(link);
 } /* airo_detach */
 
 /*======================================================================
@@ -378,11 +365,11 @@ static void airo_config(dev_link_t *link)
         
         /*
           At this point, the dev_node_t structure(s) need to be
-          initialized and arranged in a linked list at link->dev.
+          initialized and arranged in a linked list at link->dev_node.
         */
         strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name );
         dev->node.major = dev->node.minor = 0;
-        link->dev = &dev->node;
+        link->dev_node = &dev->node;
         
         /* Finally, report what we've done */
         printk(KERN_INFO "%s: index 0x%02x: ",
diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c
index 53fdaa22226d..522bbed47a05 100644
--- a/drivers/net/wireless/atmel_cs.c
+++ b/drivers/net/wireless/atmel_cs.c
@@ -154,22 +154,14 @@ typedef struct local_info_t {
 
 static int atmel_attach(struct pcmcia_device *p_dev)
 {
-        dev_link_t *link;
         local_info_t *local;
 
         DEBUG(0, "atmel_attach()\n");
 
-        /* Initialize the dev_link_t structure */
-        link = kzalloc(sizeof(struct dev_link_t), GFP_KERNEL);
-        if (!link) {
-                printk(KERN_ERR "atmel_cs: no memory for new device\n");
-                return -ENOMEM;
-        }
-
         /* Interrupt setup */
-        link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-        link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-        link->irq.Handler = NULL;
+        p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+        p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
+        p_dev->irq.Handler = NULL;
 
         /*
           General socket configuration defaults can go here.  In this
@@ -178,23 +170,19 @@ static int atmel_attach(struct pcmcia_device *p_dev)
           and attributes of IO windows) are fixed by the nature of the
           device, and can be hard-wired here.
         */
-        link->conf.Attributes = 0;
-        link->conf.IntType = INT_MEMORY_AND_IO;
+        p_dev->conf.Attributes = 0;
+        p_dev->conf.IntType = INT_MEMORY_AND_IO;
 
         /* Allocate space for private device-specific data */
         local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
         if (!local) {
                 printk(KERN_ERR "atmel_cs: no memory for new device\n");
-                kfree (link);
                 return -ENOMEM;
         }
-        link->priv = local;
-
-        link->handle = p_dev;
-        p_dev->instance = link;
+        p_dev->priv = local;
 
-        link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-        atmel_config(link);
+        p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+        atmel_config(p_dev);
 
         return 0;
 } /* atmel_attach */
@@ -218,7 +206,6 @@ static void atmel_detach(struct pcmcia_device *p_dev)
                 atmel_release(link);
 
         kfree(link->priv);
-        kfree(link);
 }
 
 /*======================================================================
@@ -387,11 +374,11 @@ static void atmel_config(dev_link_t *link)
         
         /*
           At this point, the dev_node_t structure(s) need to be
-          initialized and arranged in a linked list at link->dev.
+          initialized and arranged in a linked list at link->dev_node.
         */
         strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name );
         dev->node.major = dev->node.minor = 0;
-        link->dev = &dev->node;
+        link->dev_node = &dev->node;
                         
         link->state &= ~DEV_CONFIG_PENDING;
         return;
diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index 69024bfb5bba..e3095a88745c 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -503,22 +503,11 @@ static struct prism2_helper_functions prism2_pccard_funcs =
  * initialize dev_link structure, but do not configure the card yet */
 static int prism2_attach(struct pcmcia_device *p_dev)
 {
-        dev_link_t *link;
-
-        link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
-        if (link == NULL)
-                return -ENOMEM;
-
-        memset(link, 0, sizeof(dev_link_t));
-
         PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
-        link->conf.IntType = INT_MEMORY_AND_IO;
-
-        link->handle = p_dev;
-        p_dev->instance = link;
+        p_dev->conf.IntType = INT_MEMORY_AND_IO;
 
-        link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-        if (prism2_config(link))
+        p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+        if (prism2_config(p_dev))
                 PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
 
         return 0;
@@ -546,7 +535,6 @@ static void prism2_detach(struct pcmcia_device *p_dev)
                 prism2_free_local_data(dev);
                 kfree(hw_priv);
         }
-        kfree(link);
 }
 
 
@@ -713,7 +701,7 @@ static int prism2_config(dev_link_t *link)
         local->hw_priv = hw_priv;
         hw_priv->link = link;
         strcpy(hw_priv->node.dev_name, dev->name);
-        link->dev = &hw_priv->node;
+        link->dev_node = &hw_priv->node;
 
         /*
          * Allocate an interrupt line.  Note that this does not assign a
diff --git a/drivers/net/wireless/netwave_cs.c b/drivers/net/wireless/netwave_cs.c
index 23d6b3376e6e..68dfe68ffecf 100644
--- a/drivers/net/wireless/netwave_cs.c
+++ b/drivers/net/wireless/netwave_cs.c
@@ -268,7 +268,7 @@ struct site_survey {
 };      
    
 typedef struct netwave_private {
-    dev_link_t link;
+        struct pcmcia_device    *p_dev;
     spinlock_t  spinlock;       /* Serialize access to the hardware (SMP) */
     dev_node_t node;
     u_char     __iomem *ramBase;
@@ -378,9 +378,9 @@ static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
  */
 static int netwave_attach(struct pcmcia_device *p_dev)
 {
-    dev_link_t *link;
     struct net_device *dev;
     netwave_private *priv;
+    dev_link_t *link = dev_to_instance(p_dev);
 
     DEBUG(0, "netwave_attach()\n");
 
@@ -389,7 +389,7 @@ static int netwave_attach(struct pcmcia_device *p_dev)
     if (!dev)
         return -ENOMEM;
     priv = netdev_priv(dev);
-    link = &priv->link;
+    priv->p_dev = p_dev;
     link->priv = dev;
 
     /* The io structure describes IO port mapping */
@@ -429,9 +429,6 @@ static int netwave_attach(struct pcmcia_device *p_dev)
     dev->stop = &netwave_close;
     link->irq.Instance = dev;
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     netwave_pcmcia_config( link);
 
@@ -456,7 +453,7 @@ static void netwave_detach(struct pcmcia_device *p_dev)
         if (link->state & DEV_CONFIG)
                 netwave_release(link);
 
-        if (link->dev)
+        if (link->dev_node)
                 unregister_netdev(dev);
 
         free_netdev(dev);
@@ -830,7 +827,7 @@ static void netwave_pcmcia_config(dev_link_t *link) {
     }
 
     strcpy(priv->node.dev_name, dev->name);
-    link->dev = &priv->node;
+    link->dev_node = &priv->node;
     link->state &= ~DEV_CONFIG_PENDING;
 
     /* Reset card before reading physical address */
@@ -1103,7 +1100,7 @@ static irqreturn_t netwave_interrupt(int irq, void* dev_id, struct pt_regs *regs
     u_char __iomem *ramBase;
     struct net_device *dev = (struct net_device *)dev_id;
     struct netwave_private *priv = netdev_priv(dev);
-    dev_link_t *link = &priv->link;
+    dev_link_t *link = priv->p_dev;
     int i;
     
     if (!netif_device_present(dev))
@@ -1357,7 +1354,7 @@ static int netwave_rx(struct net_device *dev)
 
 static int netwave_open(struct net_device *dev) {
     netwave_private *priv = netdev_priv(dev);
-    dev_link_t *link = &priv->link;
+    dev_link_t *link = priv->p_dev;
 
     DEBUG(1, "netwave_open: starting.\n");
     
@@ -1374,7 +1371,7 @@ static int netwave_open(struct net_device *dev) {
 
 static int netwave_close(struct net_device *dev) {
     netwave_private *priv = netdev_priv(dev);
-    dev_link_t *link = &priv->link;
+    dev_link_t *link = priv->p_dev;
 
     DEBUG(1, "netwave_close: finishing.\n");
 
diff --git a/drivers/net/wireless/orinoco_cs.c b/drivers/net/wireless/orinoco_cs.c
index 75981d88a1e2..f10d97bc45f0 100644
--- a/drivers/net/wireless/orinoco_cs.c
+++ b/drivers/net/wireless/orinoco_cs.c
@@ -49,7 +49,7 @@ MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket
 /* PCMCIA specific device information (goes in the card field of
  * struct orinoco_private */
 struct orinoco_pccard {
-        dev_link_t link;
+        struct pcmcia_device    *p_dev;
         dev_node_t node;
 
         /* Used to handle hard reset */
@@ -75,7 +75,7 @@ static int
 orinoco_cs_hard_reset(struct orinoco_private *priv)
 {
         struct orinoco_pccard *card = priv->card;
-        dev_link_t *link = &card->link;
+        dev_link_t *link = card->p_dev;
         int err;
 
         /* We need atomic ops here, because we're not holding the lock */
@@ -109,7 +109,7 @@ orinoco_cs_attach(struct pcmcia_device *p_dev)
         struct net_device *dev;
         struct orinoco_private *priv;
         struct orinoco_pccard *card;
-        dev_link_t *link;
+        dev_link_t *link = dev_to_instance(p_dev);
 
         dev = alloc_orinocodev(sizeof(*card), orinoco_cs_hard_reset);
         if (! dev)
@@ -118,7 +118,7 @@ orinoco_cs_attach(struct pcmcia_device *p_dev)
         card = priv->card;
 
         /* Link both structures together */
-        link = &card->link;
+        card->p_dev = p_dev;
         link->priv = dev;
 
         /* Interrupt setup */
@@ -135,12 +135,6 @@ orinoco_cs_attach(struct pcmcia_device *p_dev)
         link->conf.Attributes = 0;
         link->conf.IntType = INT_MEMORY_AND_IO;
 
-        /* Register with Card Services */
-        link->next = NULL;
-
-        link->handle = p_dev;
-        p_dev->instance = link;
-
         link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
         orinoco_cs_config(link);
 
@@ -161,8 +155,8 @@ static void orinoco_cs_detach(struct pcmcia_device *p_dev)
         if (link->state & DEV_CONFIG)
                 orinoco_cs_release(link);
 
-        DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev);
-        if (link->dev) {
+        DEBUG(0, PFX "detach: link=%p link->dev_node=%p\n", link, link->dev_node);
+        if (link->dev_node) {
                 DEBUG(0, PFX "About to unregister net device %p\n",
                       dev);
                 unregister_netdev(dev);
@@ -364,9 +358,9 @@ orinoco_cs_config(dev_link_t *link)
         }
 
         /* At this point, the dev_node_t structure(s) needs to be
-         * initialized and arranged in a linked list at link->dev. */
+         * initialized and arranged in a linked list at link->dev_node. */
         strcpy(card->node.dev_name, dev->name);
-        link->dev = &card->node; /* link->dev being non-NULL is also
+        link->dev_node = &card->node; /* link->dev_node being non-NULL is also
                                     used to indicate that the
                                     net_device has been registered */
         link->state &= ~DEV_CONFIG_PENDING;
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 7d95587d09db..60297460debd 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -190,12 +190,6 @@ static int bc;
 static char *phy_addr = NULL;
 
 
-/* A linked list of "instances" of the ray device.  Each actual
-   PCMCIA card corresponds to one device instance, and is described
-   by one dev_link_t structure (defined in ds.h).
-*/
-static dev_link_t *dev_list = NULL;
-
 /* A dev_link_t structure has fields for most things that are needed
    to keep track of a socket, but there will usually be some device
    specific information that also needs to be kept track of.  The
@@ -204,6 +198,9 @@ static dev_link_t *dev_list = NULL;
 */
 static unsigned int ray_mem_speed = 500;
 
+/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
+static struct pcmcia_device *this_device = NULL;
+
 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
 MODULE_LICENSE("GPL");
@@ -308,53 +305,44 @@ static char rcsid[] = "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.
 =============================================================================*/
 static int ray_attach(struct pcmcia_device *p_dev)
 {
-    dev_link_t *link;
     ray_dev_t *local;
     struct net_device *dev;
-    
-    DEBUG(1, "ray_attach()\n");
-
-    /* Initialize the dev_link_t structure */
-    link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
 
-    if (!link)
-            return -ENOMEM;
+    DEBUG(1, "ray_attach()\n");
 
     /* Allocate space for private device-specific data */
     dev = alloc_etherdev(sizeof(ray_dev_t));
-
     if (!dev)
             goto fail_alloc_dev;
 
     local = dev->priv;
-
-    memset(link, 0, sizeof(struct dev_link_t));
+    local->finder = p_dev;
 
     /* The io structure describes IO port mapping. None used here */
-    link->io.NumPorts1 = 0;
-    link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
-    link->io.IOAddrLines = 5;
+    p_dev->io.NumPorts1 = 0;
+    p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+    p_dev->io.IOAddrLines = 5;
 
     /* Interrupt setup. For PCMCIA, driver takes what's given */
-    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
-    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-    link->irq.Handler = &ray_interrupt;
+    p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+    p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
+    p_dev->irq.Handler = &ray_interrupt;
 
     /* General socket configuration */
-    link->conf.Attributes = CONF_ENABLE_IRQ;
-    link->conf.IntType = INT_MEMORY_AND_IO;
-    link->conf.ConfigIndex = 1;
-    link->conf.Present = PRESENT_OPTION;
+    p_dev->conf.Attributes = CONF_ENABLE_IRQ;
+    p_dev->conf.IntType = INT_MEMORY_AND_IO;
+    p_dev->conf.ConfigIndex = 1;
+    p_dev->conf.Present = PRESENT_OPTION;
 
-    link->priv = dev;
-    link->irq.Instance = dev;
+    p_dev->priv = dev;
+    p_dev->irq.Instance = dev;
     
-    local->finder = link;
+    local->finder = p_dev;
     local->card_status = CARD_INSERTED;
     local->authentication_state = UNAUTHENTICATED;
     local->num_multi = 0;
-    DEBUG(2,"ray_attach link = %p,  dev = %p,  local = %p, intr = %p\n",
-          link,dev,local,&ray_interrupt);
+    DEBUG(2,"ray_attach p_dev = %p,  dev = %p,  local = %p, intr = %p\n",
+          p_dev,dev,local,&ray_interrupt);
 
     /* Raylink entries in the device structure */
     dev->hard_start_xmit = &ray_dev_start_xmit;
@@ -378,16 +366,13 @@ static int ray_attach(struct pcmcia_device *p_dev)
 
     init_timer(&local->timer);
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
-    link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-    ray_config(link);
+    p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+    this_device = p_dev;
+    ray_config(p_dev);
 
     return 0;
 
 fail_alloc_dev:
-    kfree(link);
     return -ENOMEM;
 } /* ray_attach */
 /*=============================================================================
@@ -399,18 +384,12 @@ fail_alloc_dev:
 static void ray_detach(struct pcmcia_device *p_dev)
 {
     dev_link_t *link = dev_to_instance(p_dev);
-    dev_link_t **linkp;
     struct net_device *dev;
     ray_dev_t *local;
 
     DEBUG(1, "ray_detach(0x%p)\n", link);
-    
-    /* Locate device structure */
-    for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
-        if (*linkp == link) break;
-    if (*linkp == NULL)
-        return;
 
+    this_device = NULL;
     dev = link->priv;
 
     if (link->state & DEV_CONFIG) {
@@ -420,13 +399,10 @@ static void ray_detach(struct pcmcia_device *p_dev)
             del_timer(&local->timer);
     }
 
-    /* Unlink device structure, free pieces */
-    *linkp = link->next;
     if (link->priv) {
-        if (link->dev) unregister_netdev(dev);
+        if (link->dev_node) unregister_netdev(dev);
         free_netdev(dev);
     }
-    kfree(link);
     DEBUG(2,"ray_cs ray_detach ending\n");
 } /* ray_detach */
 /*=============================================================================
@@ -537,7 +513,7 @@ static void ray_config(dev_link_t *link)
     }
 
     strcpy(local->node.dev_name, dev->name);
-    link->dev = &local->node;
+    link->dev_node = &local->node;
 
     link->state &= ~DEV_CONFIG_PENDING;
     printk(KERN_INFO "%s: RayLink, irq %d, hw_addr ",
@@ -1640,18 +1616,14 @@ static const struct iw_handler_def	ray_handler_def =
 /*===========================================================================*/
 static int ray_open(struct net_device *dev)
 {
-    dev_link_t *link;
     ray_dev_t *local = (ray_dev_t *)dev->priv;
+    dev_link_t *link;
+    link = local->finder;
     
     DEBUG(1, "ray_open('%s')\n", dev->name);
 
-    for (link = dev_list; link; link = link->next)
-        if (link->priv == dev) break;
-    if (!DEV_OK(link)) {
-        return -ENODEV;
-    }
-
-    if (link->open == 0) local->num_multi = 0;
+    if (link->open == 0)
+            local->num_multi = 0;
     link->open++;
 
     /* If the card is not started, time to start it ! - Jean II */
@@ -1678,15 +1650,12 @@ static int ray_open(struct net_device *dev)
 /*===========================================================================*/
 static int ray_dev_close(struct net_device *dev)
 {
+    ray_dev_t *local = (ray_dev_t *)dev->priv;
     dev_link_t *link;
+    link = local->finder;
 
     DEBUG(1, "ray_dev_close('%s')\n", dev->name);
 
-    for (link = dev_list; link; link = link->next)
-        if (link->priv == dev) break;
-    if (link == NULL)
-        return -ENODEV;
-
     link->open--;
     netif_stop_queue(dev);
 
@@ -2679,7 +2648,7 @@ static int ray_cs_proc_read(char *buf, char **start, off_t offset, int len)
     struct freq_hop_element *pfh;
     UCHAR c[33];
 
-    link = dev_list;
+    link = this_device;
     if (!link)
         return 0;
     dev = (struct net_device *)link->priv;
@@ -2923,7 +2892,6 @@ static void __exit exit_ray_cs(void)
 #endif
 
     pcmcia_unregister_driver(&ray_driver);
-    BUG_ON(dev_list != NULL);
 } /* exit_ray_cs */
 
 module_init(init_ray_cs);
diff --git a/drivers/net/wireless/spectrum_cs.c b/drivers/net/wireless/spectrum_cs.c
index 7a4a80b01f9c..be36679c8c95 100644
--- a/drivers/net/wireless/spectrum_cs.c
+++ b/drivers/net/wireless/spectrum_cs.c
@@ -63,7 +63,7 @@ MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket
 /* PCMCIA specific device information (goes in the card field of
  * struct orinoco_private */
 struct orinoco_pccard {
-        dev_link_t link;
+        struct pcmcia_device    *p_dev;
         dev_node_t node;
 };
 
@@ -554,12 +554,12 @@ static int
 spectrum_cs_hard_reset(struct orinoco_private *priv)
 {
         struct orinoco_pccard *card = priv->card;
-        dev_link_t *link = &card->link;
+        dev_link_t *link = card->p_dev;
         int err;
 
         if (!hermes_present(&priv->hw)) {
                 /* The firmware needs to be reloaded */
-                if (spectrum_dl_firmware(&priv->hw, &card->link) != 0) {
+                if (spectrum_dl_firmware(&priv->hw, link) != 0) {
                         printk(KERN_ERR PFX "Firmware download failed\n");
                         err = -ENODEV;
                 }
@@ -589,7 +589,7 @@ spectrum_cs_attach(struct pcmcia_device *p_dev)
         struct net_device *dev;
         struct orinoco_private *priv;
         struct orinoco_pccard *card;
-        dev_link_t *link;
+        dev_link_t *link = dev_to_instance(p_dev);
 
         dev = alloc_orinocodev(sizeof(*card), spectrum_cs_hard_reset);
         if (! dev)
@@ -598,7 +598,7 @@ spectrum_cs_attach(struct pcmcia_device *p_dev)
         card = priv->card;
 
         /* Link both structures together */
-        link = &card->link;
+        card->p_dev = p_dev;
         link->priv = dev;
 
         /* Interrupt setup */
@@ -615,9 +615,6 @@ spectrum_cs_attach(struct pcmcia_device *p_dev)
         link->conf.Attributes = 0;
         link->conf.IntType = INT_MEMORY_AND_IO;
 
-        link->handle = p_dev;
-        p_dev->instance = link;
-
         link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
         spectrum_cs_config(link);
 
@@ -638,8 +635,8 @@ static void spectrum_cs_detach(struct pcmcia_device *p_dev)
         if (link->state & DEV_CONFIG)
                 spectrum_cs_release(link);
 
-        DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev);
-        if (link->dev) {
+        DEBUG(0, PFX "detach: link=%p link->dev_node=%p\n", link, link->dev_node);
+        if (link->dev_node) {
                 DEBUG(0, PFX "About to unregister net device %p\n",
                       dev);
                 unregister_netdev(dev);
@@ -842,9 +839,9 @@ spectrum_cs_config(dev_link_t *link)
         }
 
         /* At this point, the dev_node_t structure(s) needs to be
-         * initialized and arranged in a linked list at link->dev. */
+         * initialized and arranged in a linked list at link->dev_node. */
         strcpy(card->node.dev_name, dev->name);
-        link->dev = &card->node; /* link->dev being non-NULL is also
+        link->dev_node = &card->node; /* link->dev_node being non-NULL is also
                                     used to indicate that the
                                     net_device has been registered */
         link->state &= ~DEV_CONFIG_PENDING;
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index daa17dc34320..baa1011e70e0 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -4081,7 +4081,7 @@ wv_pcmcia_config(dev_link_t *	link)
     }
 
   strcpy(((net_local *) netdev_priv(dev))->node.dev_name, dev->name);
-  link->dev = &((net_local *) netdev_priv(dev))->node;
+  link->dev_node = &((net_local *) netdev_priv(dev))->node;
 
 #ifdef DEBUG_CONFIG_TRACE
   printk(KERN_DEBUG "<-wv_pcmcia_config()\n");
@@ -4583,7 +4583,6 @@ wavelan_close(struct net_device *	dev)
 static int
 wavelan_attach(struct pcmcia_device *p_dev)
 {
-  dev_link_t *  link;           /* Info for cardmgr */
   struct net_device *   dev;            /* Interface generic data */
   net_local *   lp;             /* Interface specific data */
 
@@ -4591,34 +4590,26 @@ wavelan_attach(struct pcmcia_device *p_dev)
   printk(KERN_DEBUG "-> wavelan_attach()\n");
 #endif
 
-  /* Initialize the dev_link_t structure */
-  link = kzalloc(sizeof(struct dev_link_t), GFP_KERNEL);
-  if (!link) return -ENOMEM;
-
   /* The io structure describes IO port mapping */
-  link->io.NumPorts1 = 8;
-  link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
-  link->io.IOAddrLines = 3;
+  p_dev->io.NumPorts1 = 8;
+  p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+  p_dev->io.IOAddrLines = 3;
 
   /* Interrupt setup */
-  link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
-  link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-  link->irq.Handler = wavelan_interrupt;
+  p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+  p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
+  p_dev->irq.Handler = wavelan_interrupt;
 
   /* General socket configuration */
-  link->conf.Attributes = CONF_ENABLE_IRQ;
-  link->conf.IntType = INT_MEMORY_AND_IO;
-
-  /* Chain drivers */
-  link->next = NULL;
+  p_dev->conf.Attributes = CONF_ENABLE_IRQ;
+  p_dev->conf.IntType = INT_MEMORY_AND_IO;
 
   /* Allocate the generic data structure */
   dev = alloc_etherdev(sizeof(net_local));
-  if (!dev) {
-      kfree(link);
+  if (!dev)
       return -ENOMEM;
-  }
-  link->priv = link->irq.Instance = dev;
+
+  p_dev->priv = p_dev->irq.Instance = dev;
 
   lp = netdev_priv(dev);
 
@@ -4635,7 +4626,6 @@ wavelan_attach(struct pcmcia_device *p_dev)
   spin_lock_init(&lp->spinlock);
 
   /* back links */
-  lp->link = link;
   lp->dev = dev;
 
   /* wavelan NET3 callbacks */
@@ -4661,11 +4651,8 @@ wavelan_attach(struct pcmcia_device *p_dev)
   /* Other specific data */
   dev->mtu = WAVELAN_MTU;
 
-  link->handle = p_dev;
-  p_dev->instance = link;
-
-  link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-  if(wv_pcmcia_config(link) &&
+  p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+  if(wv_pcmcia_config(p_dev) &&
      wv_hw_config(dev))
           wv_init_info(dev);
   else
@@ -4713,14 +4700,13 @@ wavelan_detach(struct pcmcia_device *p_dev)
 
       /* Remove ourselves from the kernel list of ethernet devices */
       /* Warning : can't be called from interrupt, timer or wavelan_close() */
-      if (link->dev)
+      if (link->dev_node)
         unregister_netdev(dev);
-      link->dev = NULL;
+      link->dev_node = NULL;
       ((net_local *)netdev_priv(dev))->link = NULL;
       ((net_local *)netdev_priv(dev))->dev = NULL;
       free_netdev(dev);
     }
-  kfree(link);
 
 #ifdef DEBUG_CALLBACK_TRACE
   printk(KERN_DEBUG "<- wavelan_detach()\n");
diff --git a/drivers/net/wireless/wl3501.h b/drivers/net/wireless/wl3501.h
index 4303c50c2ab6..65ceb088f700 100644
--- a/drivers/net/wireless/wl3501.h
+++ b/drivers/net/wireless/wl3501.h
@@ -611,5 +611,6 @@ struct wl3501_card {
         struct iw_spy_data              spy_data;
         struct iw_public_data           wireless_data;
         struct dev_node_t               node;
+        struct pcmcia_device            *p_dev;
 };
 #endif
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 393b5cb7a52c..4b054f54e9d5 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -226,17 +226,6 @@ static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
         iw_set_mgmt_info_element(from->id, to, from->data, from->len);
 }
 
-/*
- * A linked list of "instances" of the wl24 device.  Each actual PCMCIA card
- * corresponds to one device instance, and is described by one dev_link_t
- * structure (defined in ds.h).
- *
- * You may not want to use a linked list for this -- for example, the memory
- * card driver uses an array of dev_link_t pointers, where minor device numbers
- * are used to derive the corresponding array index.
- */
-static dev_link_t *wl3501_dev_list;
-
 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
 {
         wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
@@ -1282,14 +1271,9 @@ static int wl3501_close(struct net_device *dev)
         int rc = -ENODEV;
         unsigned long flags;
         dev_link_t *link;
+        link = this->p_dev;
 
         spin_lock_irqsave(&this->lock, flags);
-        /* Check if the device is in wl3501_dev_list */
-        for (link = wl3501_dev_list; link; link = link->next)
-                if (link->priv == dev)
-                        break;
-        if (!link)
-                goto out;
         link->open--;
 
         /* Stop wl3501_hard_start_xmit() from now on */
@@ -1301,7 +1285,6 @@ static int wl3501_close(struct net_device *dev)
 
         rc = 0;
         printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
-out:
         spin_unlock_irqrestore(&this->lock, flags);
         return rc;
 }
@@ -1401,12 +1384,9 @@ static int wl3501_open(struct net_device *dev)
         struct wl3501_card *this = dev->priv;
         unsigned long flags;
         dev_link_t *link;
+        link = this->p_dev;
 
         spin_lock_irqsave(&this->lock, flags);
-        /* Check if the device is in wl3501_dev_list */
-        for (link = wl3501_dev_list; link; link = link->next)
-                if (link->priv == dev)
-                        break;
         if (!DEV_OK(link))
                 goto out;
         netif_device_attach(dev);
@@ -1500,16 +1480,8 @@ static struct ethtool_ops ops = {
 static void wl3501_detach(struct pcmcia_device *p_dev)
 {
         dev_link_t *link = dev_to_instance(p_dev);
-        dev_link_t **linkp;
         struct net_device *dev = link->priv;
 
-        /* Locate device structure */
-        for (linkp = &wl3501_dev_list; *linkp; linkp = &(*linkp)->next)
-                if (*linkp == link)
-                        break;
-        if (!*linkp)
-                goto out;
-
         /* If the device is currently configured and active, we won't actually
          * delete it yet.  Instead, it is marked so that when the release()
          * function is called, that will trigger a proper detach(). */
@@ -1522,13 +1494,9 @@ static void wl3501_detach(struct pcmcia_device *p_dev)
                 wl3501_release(link);
         }
 
-        /* Unlink device structure, free pieces */
-        *linkp = link->next;
-
         if (link->priv)
                 free_netdev(link->priv);
-        kfree(link);
-out:
+
         return;
 }
 
@@ -1955,14 +1923,9 @@ static const struct iw_handler_def wl3501_handler_def = {
  */
 static int wl3501_attach(struct pcmcia_device *p_dev)
 {
-        dev_link_t *link;
         struct net_device *dev;
         struct wl3501_card *this;
-
-        /* Initialize the dev_link_t structure */
-        link = kzalloc(sizeof(*link), GFP_KERNEL);
-        if (!link)
-                return -ENOMEM;
+        dev_link_t *link = dev_to_instance(p_dev);
 
         /* The io structure describes IO port mapping */
         link->io.NumPorts1      = 16;
@@ -1991,22 +1954,18 @@ static int wl3501_attach(struct pcmcia_device *p_dev)
         dev->get_stats          = wl3501_get_stats;
         this = dev->priv;
         this->wireless_data.spy_data = &this->spy_data;
+        this->p_dev = p_dev;
         dev->wireless_data      = &this->wireless_data;
         dev->wireless_handlers  = (struct iw_handler_def *)&wl3501_handler_def;
         SET_ETHTOOL_OPS(dev, &ops);
         netif_stop_queue(dev);
         link->priv = link->irq.Instance = dev;
 
-        link->handle = p_dev;
-        p_dev->instance = link;
-
         link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-        wl3501_config(link);
+        wl3501_config(p_dev);
 
         return 0;
 out_link:
-        kfree(link);
-        link = NULL;
         return -ENOMEM;
 }
 
@@ -2087,9 +2046,9 @@ static void wl3501_config(dev_link_t *link)
         this = dev->priv;
         /*
          * At this point, the dev_node_t structure(s) should be initialized and
-         * arranged in a linked list at link->dev.
+         * arranged in a linked list at link->dev_node.
          */
-        link->dev = &this->node;
+        link->dev_node = &this->node;
         link->state &= ~DEV_CONFIG_PENDING;
 
         this->base_addr = dev->base_addr;
@@ -2148,7 +2107,7 @@ static void wl3501_release(dev_link_t *link)
         struct net_device *dev = link->priv;
 
         /* Unlink the device chain */
-        if (link->dev)
+        if (link->dev_node)
                 unregister_netdev(dev);
 
         pcmcia_disable_device(link->handle);
@@ -2206,9 +2165,7 @@ static int __init wl3501_init_module(void)
 
 static void __exit wl3501_exit_module(void)
 {
-        dprintk(0, ": unloading");
         pcmcia_unregister_driver(&wl3501_driver);
-        BUG_ON(wl3501_dev_list != NULL);
 }
 
 module_init(wl3501_init_module);