[PATCH] pcmcia: use bitfield instead of p_state and state

Instead of the two status values struct pcmcia_device->p_state and state,
use descriptive bitfields. Most value-checking in drivers was invalid, as
the core now only calls the ->remove() (a.k.a. detach) function in case the
attachement _and_ configuration was successful.

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

5 files changed, 30 insertions, 80 deletions

diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c
index 7caa700..ee449b2 100644
--- a/drivers/scsi/pcmcia/aha152x_stub.c
+++ b/drivers/scsi/pcmcia/aha152x_stub.c
@@ -122,7 +122,6 @@ static int aha152x_probe(struct pcmcia_device *link)
     link->conf.IntType = INT_MEMORY_AND_IO;
     link->conf.Present = PRESENT_OPTION;
 
-    link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     return aha152x_config_cs(link);
 } /* aha152x_attach */
 
@@ -132,8 +131,7 @@ static void aha152x_detach(struct pcmcia_device *link)
 {
     DEBUG(0, "aha152x_detach(0x%p)\n", link);
 
-    if (link->state & DEV_CONFIG)
-	aha152x_release_cs(link);
+    aha152x_release_cs(link);
 
     /* Unlink device structure, free bits */
     kfree(link->priv);
@@ -165,9 +163,6 @@ static int aha152x_config_cs(struct pcmcia_device *link)
     CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
     link->conf.ConfigBase = parse.config.base;
 
-    /* Configure card */
-    link->state |= DEV_CONFIG;
-
     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
     while (1) {
@@ -216,7 +211,6 @@ static int aha152x_config_cs(struct pcmcia_device *link)
     link->dev_node = &info->node;
     info->host = host;
 
-    link->state &= ~DEV_CONFIG_PENDING;
     return 0;
 
 cs_failed:
diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c
index 80afd3e..85f7ffa 100644
--- a/drivers/scsi/pcmcia/fdomain_stub.c
+++ b/drivers/scsi/pcmcia/fdomain_stub.c
@@ -105,7 +105,6 @@ static int fdomain_probe(struct pcmcia_device *link)
 	link->conf.IntType = INT_MEMORY_AND_IO;
 	link->conf.Present = PRESENT_OPTION;
 
-	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	return fdomain_config(link);
 } /* fdomain_attach */
 
@@ -115,8 +114,7 @@ static void fdomain_detach(struct pcmcia_device *link)
 {
 	DEBUG(0, "fdomain_detach(0x%p)\n", link);
 
-	if (link->state & DEV_CONFIG)
-		fdomain_release(link);
+	fdomain_release(link);
 
 	kfree(link->priv);
 } /* fdomain_detach */
@@ -147,9 +145,6 @@ static int fdomain_config(struct pcmcia_device *link)
     CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
     link->conf.ConfigBase = parse.config.base;
 
-    /* Configure card */
-    link->state |= DEV_CONFIG;
-
     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
     while (1) {
@@ -188,7 +183,6 @@ static int fdomain_config(struct pcmcia_device *link)
     link->dev_node = &info->node;
     info->host = host;
 
-    link->state &= ~DEV_CONFIG_PENDING;
     return 0;
 
 cs_failed:
@@ -214,8 +208,7 @@ static void fdomain_release(struct pcmcia_device *link)
 
 static int fdomain_resume(struct pcmcia_device *link)
 {
-	if (link->state & DEV_CONFIG)
-		fdomain_16x0_bus_reset(NULL);
+	fdomain_16x0_bus_reset(NULL);
 
 	return 0;
 }
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index deec1c3..231f9c3 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -1630,7 +1630,6 @@ static int nsp_cs_probe(struct pcmcia_device *link)
 	link->conf.IntType	 = INT_MEMORY_AND_IO;
 	link->conf.Present	 = PRESENT_OPTION;
 
-	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	ret = nsp_cs_config(link);
 
 	nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link);
@@ -1648,10 +1647,8 @@ static void nsp_cs_detach(struct pcmcia_device *link)
 {
 	nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p", link);
 
-	if (link->state & DEV_CONFIG) {
-		((scsi_info_t *)link->priv)->stop = 1;
-		nsp_cs_release(link);
-	}
+	((scsi_info_t *)link->priv)->stop = 1;
+	nsp_cs_release(link);
 
 	kfree(link->priv);
 	link->priv = NULL;
@@ -1698,9 +1695,6 @@ static int nsp_cs_config(struct pcmcia_device *link)
 	link->conf.ConfigBase = parse.config.base;
 	link->conf.Present    = parse.config.rmask[0];
 
-	/* Configure card */
-	link->state	      |= DEV_CONFIG;
-
 	/* Look up the current Vcc */
 	CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &conf));
 
@@ -1921,7 +1915,6 @@ static int nsp_cs_config(struct pcmcia_device *link)
 		       req.Base+req.Size-1);
 	printk("\n");
 
-	link->state &= ~DEV_CONFIG_PENDING;
 	return 0;
 
  cs_failed:
@@ -2071,19 +2064,7 @@ static int __init nsp_cs_init(void)
 static void __exit nsp_cs_exit(void)
 {
 	nsp_msg(KERN_INFO, "unloading...");
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68))
 	pcmcia_unregister_driver(&nsp_driver);
-#else
-	unregister_pcmcia_driver(&dev_info);
-	/* XXX: this really needs to move into generic code.. */
-	while (dev_list != NULL) {
-		if (dev_list->state & DEV_CONFIG) {
-			nsp_cs_release(dev_list);
-		}
-		nsp_cs_detach(dev_list);
-	}
-#endif
 }
 
 
diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c
index 61c2eb0..86c2ac6 100644
--- a/drivers/scsi/pcmcia/qlogic_stub.c
+++ b/drivers/scsi/pcmcia/qlogic_stub.c
@@ -178,7 +178,6 @@ static int qlogic_probe(struct pcmcia_device *link)
 	link->conf.IntType = INT_MEMORY_AND_IO;
 	link->conf.Present = PRESENT_OPTION;
 
-	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	return qlogic_config(link);
 }				/* qlogic_attach */
 
@@ -188,9 +187,7 @@ static void qlogic_detach(struct pcmcia_device *link)
 {
 	DEBUG(0, "qlogic_detach(0x%p)\n", link);
 
-	if (link->state & DEV_CONFIG)
-		qlogic_release(link);
-
+	qlogic_release(link);
 	kfree(link->priv);
 
 }				/* qlogic_detach */
@@ -224,9 +221,6 @@ static int qlogic_config(struct pcmcia_device * link)
 	if ((pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS) && (pcmcia_get_tuple_data(link, &tuple) == CS_SUCCESS))
 		info->manf_id = le16_to_cpu(tuple.TupleData[0]);
 
-	/* Configure card */
-	link->state |= DEV_CONFIG;
-
 	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 	while (1) {
@@ -272,7 +266,6 @@ static int qlogic_config(struct pcmcia_device * link)
 	link->dev_node = &info->node;
 	info->host = host;
 
-	link->state &= ~DEV_CONFIG_PENDING;
 	return 0;
 
 cs_failed:
@@ -302,20 +295,18 @@ static void qlogic_release(struct pcmcia_device *link)
 
 static int qlogic_resume(struct pcmcia_device *link)
 {
-	if (link->state & DEV_CONFIG) {
-		scsi_info_t *info = link->priv;
-
-		pcmcia_request_configuration(link, &link->conf);
-		if ((info->manf_id == MANFID_MACNICA) ||
-		    (info->manf_id == MANFID_PIONEER) ||
-		    (info->manf_id == 0x0098)) {
-			outb(0x80, link->io.BasePort1 + 0xd);
-			outb(0x24, link->io.BasePort1 + 0x9);
-			outb(0x04, link->io.BasePort1 + 0xd);
-		}
-		/* Ugggglllyyyy!!! */
-		qlogicfas408_bus_reset(NULL);
+	scsi_info_t *info = link->priv;
+
+	pcmcia_request_configuration(link, &link->conf);
+	if ((info->manf_id == MANFID_MACNICA) ||
+	    (info->manf_id == MANFID_PIONEER) ||
+	    (info->manf_id == 0x0098)) {
+		outb(0x80, link->io.BasePort1 + 0xd);
+		outb(0x24, link->io.BasePort1 + 0x9);
+		outb(0x04, link->io.BasePort1 + 0xd);
 	}
+	/* Ugggglllyyyy!!! */
+	qlogicfas408_bus_reset(NULL);
 
 	return 0;
 }
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index b443220..9f59827 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -736,9 +736,6 @@ SYM53C500_config(struct pcmcia_device *link)
 	    (pcmcia_get_tuple_data(link, &tuple) == CS_SUCCESS))
 		info->manf_id = le16_to_cpu(tuple.TupleData[0]);
 
-	/* Configure card */
-	link->state |= DEV_CONFIG;
-
 	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 	while (1) {
@@ -836,7 +833,6 @@ next_entry:
 
 	scsi_scan_host(host);
 
-	link->state &= ~DEV_CONFIG_PENDING;
 	return 0;
 
 err_free_irq:
@@ -846,7 +842,6 @@ err_free_scsi:
 err_release:
 	release_region(port_base, 0x10);
 	printk(KERN_INFO "sym53c500_cs: no SCSI devices found\n");
-	link->state &= ~DEV_CONFIG_PENDING;
 	return -ENODEV;
 
 cs_failed:
@@ -859,21 +854,19 @@ static int sym53c500_resume(struct pcmcia_device *link)
 {
 	struct scsi_info_t *info = link->priv;
 
-	if (link->state & DEV_CONFIG) {
-		/* See earlier comment about manufacturer IDs. */
-		if ((info->manf_id == MANFID_MACNICA) ||
-		    (info->manf_id == MANFID_PIONEER) ||
-		    (info->manf_id == 0x0098)) {
-			outb(0x80, link->io.BasePort1 + 0xd);
-			outb(0x24, link->io.BasePort1 + 0x9);
-			outb(0x04, link->io.BasePort1 + 0xd);
-		}
-		/*
-		 *  If things don't work after a "resume",
-		 *  this is a good place to start looking.
-		 */
-		SYM53C500_int_host_reset(link->io.BasePort1);
+	/* See earlier comment about manufacturer IDs. */
+	if ((info->manf_id == MANFID_MACNICA) ||
+	    (info->manf_id == MANFID_PIONEER) ||
+	    (info->manf_id == 0x0098)) {
+		outb(0x80, link->io.BasePort1 + 0xd);
+		outb(0x24, link->io.BasePort1 + 0x9);
+		outb(0x04, link->io.BasePort1 + 0xd);
 	}
+	/*
+	 *  If things don't work after a "resume",
+	 *  this is a good place to start looking.
+	 */
+	SYM53C500_int_host_reset(link->io.BasePort1);
 
 	return 0;
 }
@@ -883,8 +876,7 @@ SYM53C500_detach(struct pcmcia_device *link)
 {
 	DEBUG(0, "SYM53C500_detach(0x%p)\n", link);
 
-	if (link->state & DEV_CONFIG)
-		SYM53C500_release(link);
+	SYM53C500_release(link);
 
 	kfree(link->priv);
 	link->priv = NULL;
@@ -913,7 +905,6 @@ SYM53C500_probe(struct pcmcia_device *link)
 	link->conf.IntType = INT_MEMORY_AND_IO;
 	link->conf.Present = PRESENT_OPTION;
 
-	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 	return SYM53C500_config(link);
 } /* SYM53C500_attach */