[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>

6 files changed, 24 insertions, 46 deletions

diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c
index 12ec94d..0c196fb 100644
--- a/drivers/scsi/pcmcia/aha152x_stub.c
+++ b/drivers/scsi/pcmcia/aha152x_stub.c
@@ -89,7 +89,7 @@ MODULE_LICENSE("Dual MPL/GPL");
 /*====================================================================*/
 
 typedef struct scsi_info_t {
-    dev_link_t		link;
+	struct pcmcia_device	*p_dev;
     dev_node_t		node;
     struct Scsi_Host	*host;
 } scsi_info_t;
@@ -103,7 +103,7 @@ static dev_link_t *dev_list;
 static int aha152x_attach(struct pcmcia_device *p_dev)
 {
     scsi_info_t *info;
-    dev_link_t *link;
+    dev_link_t *link = dev_to_instance(p_dev);
     
     DEBUG(0, "aha152x_attach()\n");
 
@@ -111,7 +111,8 @@ static int aha152x_attach(struct pcmcia_device *p_dev)
     info = kmalloc(sizeof(*info), GFP_KERNEL);
     if (!info) return -ENOMEM;
     memset(info, 0, sizeof(*info));
-    link = &info->link; link->priv = info;
+    info->p_dev = p_dev;
+    link->priv = info;
 
     link->io.NumPorts1 = 0x20;
     link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
@@ -122,9 +123,6 @@ static int aha152x_attach(struct pcmcia_device *p_dev)
     link->conf.IntType = INT_MEMORY_AND_IO;
     link->conf.Present = PRESENT_OPTION;
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     aha152x_config_cs(link);
 
@@ -136,23 +134,14 @@ static int aha152x_attach(struct pcmcia_device *p_dev)
 static void aha152x_detach(struct pcmcia_device *p_dev)
 {
     dev_link_t *link = dev_to_instance(p_dev);
-    dev_link_t **linkp;
 
     DEBUG(0, "aha152x_detach(0x%p)\n", link);
-    
-    /* Locate device structure */
-    for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
-	if (*linkp == link) break;
-    if (*linkp == NULL)
-	return;
 
     if (link->state & DEV_CONFIG)
 	aha152x_release_cs(link);
 
     /* Unlink device structure, free bits */
-    *linkp = link->next;
     kfree(link->priv);
-    
 } /* aha152x_detach */
 
 /*====================================================================*/
@@ -230,7 +219,7 @@ static void aha152x_config_cs(dev_link_t *link)
     }
 
     sprintf(info->node.dev_name, "scsi%d", host->host_no);
-    link->dev = &info->node;
+    link->dev_node = &info->node;
     info->host = host;
 
     link->state &= ~DEV_CONFIG_PENDING;
diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c
index b3cd206..94dcee9 100644
--- a/drivers/scsi/pcmcia/fdomain_stub.c
+++ b/drivers/scsi/pcmcia/fdomain_stub.c
@@ -73,7 +73,7 @@ static char *version =
 /*====================================================================*/
 
 typedef struct scsi_info_t {
-    dev_link_t		link;
+	struct pcmcia_device	*p_dev;
     dev_node_t		node;
     struct Scsi_Host	*host;
 } scsi_info_t;
@@ -86,7 +86,7 @@ static void fdomain_config(dev_link_t *link);
 static int fdomain_attach(struct pcmcia_device *p_dev)
 {
     scsi_info_t *info;
-    dev_link_t *link;
+    dev_link_t *link = dev_to_instance(p_dev);
 
     DEBUG(0, "fdomain_attach()\n");
 
@@ -94,7 +94,8 @@ static int fdomain_attach(struct pcmcia_device *p_dev)
     info = kmalloc(sizeof(*info), GFP_KERNEL);
     if (!info) return -ENOMEM;
     memset(info, 0, sizeof(*info));
-    link = &info->link; link->priv = info;
+    info->p_dev = p_dev;
+    link->priv = info;
     link->io.NumPorts1 = 0x10;
     link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
     link->io.IOAddrLines = 10;
@@ -104,9 +105,6 @@ static int fdomain_attach(struct pcmcia_device *p_dev)
     link->conf.IntType = INT_MEMORY_AND_IO;
     link->conf.Present = PRESENT_OPTION;
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     fdomain_config(link);
 
@@ -191,7 +189,7 @@ static void fdomain_config(dev_link_t *link)
     scsi_scan_host(host);
 
     sprintf(info->node.dev_name, "scsi%d", host->host_no);
-    link->dev = &info->node;
+    link->dev_node = &info->node;
     info->host = host;
     
     link->state &= ~DEV_CONFIG_PENDING;
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index e41e1fe..23548fb 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -1596,8 +1596,8 @@ static int nsp_eh_host_reset(Scsi_Cmnd *SCpnt)
 static int nsp_cs_attach(struct pcmcia_device *p_dev)
 {
 	scsi_info_t  *info;
-	dev_link_t   *link;
 	nsp_hw_data  *data = &nsp_data_base;
+	dev_link_t *link = dev_to_instance(p_dev);
 
 	nsp_dbg(NSP_DEBUG_INIT, "in");
 
@@ -1605,7 +1605,7 @@ static int nsp_cs_attach(struct pcmcia_device *p_dev)
 	info = kmalloc(sizeof(*info), GFP_KERNEL);
 	if (info == NULL) { return -ENOMEM; }
 	memset(info, 0, sizeof(*info));
-	link = &info->link;
+	info->p_dev = p_dev;
 	link->priv = info;
 	data->ScsiInfo = info;
 
@@ -1630,9 +1630,6 @@ static int nsp_cs_attach(struct pcmcia_device *p_dev)
 	link->conf.IntType	 = INT_MEMORY_AND_IO;
 	link->conf.Present	 = PRESENT_OPTION;
 
-	link->handle = p_dev;
-	p_dev->instance = link;
-
 	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	nsp_cs_config(link);
 
@@ -1853,12 +1850,12 @@ static void nsp_cs_config(dev_link_t *link)
 	scsi_scan_host(host);
 
 	snprintf(info->node.dev_name, sizeof(info->node.dev_name), "scsi%d", host->host_no);
-	link->dev  = &info->node;
+	link->dev_node  = &info->node;
 	info->host = host;
 
 #else
 	nsp_dbg(NSP_DEBUG_INIT, "GET_SCSI_INFO");
-	tail = &link->dev;
+	tail = &link->dev_node;
 	info->ndev = 0;
 
 	nsp_dbg(NSP_DEBUG_INIT, "host=0x%p", host);
@@ -1962,7 +1959,7 @@ static void nsp_cs_release(dev_link_t *link)
 #else
 	scsi_unregister_host(&nsp_driver_template);
 #endif
-	link->dev = NULL;
+	link->dev_node = NULL;
 
 	if (link->win) {
 		if (data != NULL) {
diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h
index b66b140..2e1fde4 100644
--- a/drivers/scsi/pcmcia/nsp_cs.h
+++ b/drivers/scsi/pcmcia/nsp_cs.h
@@ -225,7 +225,7 @@
 /*====================================================================*/
 
 typedef struct scsi_info_t {
-	dev_link_t             link;
+	struct pcmcia_device	*p_dev;
 	struct Scsi_Host      *host;
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74))
 	dev_node_t             node;
diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c
index 4f28589..c6b3e95 100644
--- a/drivers/scsi/pcmcia/qlogic_stub.c
+++ b/drivers/scsi/pcmcia/qlogic_stub.c
@@ -91,7 +91,7 @@ static struct scsi_host_template qlogicfas_driver_template = {
 /*====================================================================*/
 
 typedef struct scsi_info_t {
-	dev_link_t link;
+	struct pcmcia_device	*p_dev;
 	dev_node_t node;
 	struct Scsi_Host *host;
 	unsigned short manf_id;
@@ -159,7 +159,7 @@ err:
 static int qlogic_attach(struct pcmcia_device *p_dev)
 {
 	scsi_info_t *info;
-	dev_link_t *link;
+	dev_link_t *link = dev_to_instance(p_dev);
 
 	DEBUG(0, "qlogic_attach()\n");
 
@@ -168,7 +168,7 @@ static int qlogic_attach(struct pcmcia_device *p_dev)
 	if (!info)
 		return -ENOMEM;
 	memset(info, 0, sizeof(*info));
-	link = &info->link;
+	info->p_dev = p_dev;
 	link->priv = info;
 	link->io.NumPorts1 = 16;
 	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
@@ -179,9 +179,6 @@ static int qlogic_attach(struct pcmcia_device *p_dev)
 	link->conf.IntType = INT_MEMORY_AND_IO;
 	link->conf.Present = PRESENT_OPTION;
 
-	link->handle = p_dev;
-	p_dev->instance = link;
-
 	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	qlogic_config(link);
 
@@ -278,7 +275,7 @@ static void qlogic_config(dev_link_t * link)
 	}
 
 	sprintf(info->node.dev_name, "scsi%d", host->host_no);
-	link->dev = &info->node;
+	link->dev_node = &info->node;
 	info->host = host;
 
 out:
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 2bce7b0..1ef3109 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -202,7 +202,7 @@ static char *version =
 /* ================================================================== */
 
 struct scsi_info_t {
-	dev_link_t link;
+	struct pcmcia_device	*p_dev;
 	dev_node_t node;
 	struct Scsi_Host *host;
 	unsigned short manf_id;
@@ -829,7 +829,7 @@ next_entry:
 	data->fast_pio = USE_FAST_PIO;
 
 	sprintf(info->node.dev_name, "scsi%d", host->host_no);
-	link->dev = &info->node;
+	link->dev_node = &info->node;
 	info->host = host;
 
 	if (scsi_add_host(host, NULL))
@@ -899,7 +899,7 @@ static int
 SYM53C500_attach(struct pcmcia_device *p_dev)
 {
 	struct scsi_info_t *info;
-	dev_link_t *link;
+	dev_link_t *link = dev_to_instance(p_dev);
 
 	DEBUG(0, "SYM53C500_attach()\n");
 
@@ -908,7 +908,7 @@ SYM53C500_attach(struct pcmcia_device *p_dev)
 	if (!info)
 		return -ENOMEM;
 	memset(info, 0, sizeof(*info));
-	link = &info->link;
+	info->p_dev = p_dev;
 	link->priv = info;
 	link->io.NumPorts1 = 16;
 	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
@@ -919,9 +919,6 @@ SYM53C500_attach(struct pcmcia_device *p_dev)
 	link->conf.IntType = INT_MEMORY_AND_IO;
 	link->conf.Present = PRESENT_OPTION;
 
-	link->handle = p_dev;
-	p_dev->instance = link;
-
 	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	SYM53C500_config(link);