pcmcia: rework the irq_req_t typedef

Most of the irq_req_t typedef'd struct can be re-worked quite
easily:

(1) IRQInfo2 was unused in any case, so drop it.

(2) IRQInfo1 was used write-only, so drop it.

(3) Instance (private data to be passed to the IRQ handler):
	Most PCMCIA drivers using pcmcia_request_irq() to actually
	register an IRQ handler set the "dev_id" to the same pointer
	as the "priv" pointer in struct pcmcia_device. Modify the two
	exceptions (ipwireless, ibmtr_cs) to also work this waym and
	set the IRQ handler's "dev_id" to p_dev->priv unconditionally.

(4) Handler is to be of type irq_handler_t.

(5) Handler != NULL already tells whether an IRQ handler is present.
	Therefore, we do not need the IRQ_HANDLER_PRESENT flag in
	irq_req_t.Attributes.

CC: netdev@vger.kernel.org
CC: linux-bluetooth@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: Jaroslav Kysela <perex@perex.cz>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Karsten Keil <isdn@linux-pingi.de>
for the Bluetooth parts: Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

3 files changed, 5 insertions, 12 deletions

diff --git a/drivers/char/pcmcia/ipwireless/hardware.c b/drivers/char/pcmcia/ipwireless/hardware.c
index 4c1820c..99cffda 100644
--- a/drivers/char/pcmcia/ipwireless/hardware.c
+++ b/drivers/char/pcmcia/ipwireless/hardware.c
@@ -1213,12 +1213,12 @@ static irqreturn_t ipwireless_handle_v2_v3_interrupt(int irq,
 
 irqreturn_t ipwireless_interrupt(int irq, void *dev_id)
 {
-	struct ipw_hardware *hw = dev_id;
+	struct ipw_dev *ipw = dev_id;
 
-	if (hw->hw_version == HW_VERSION_1)
-		return ipwireless_handle_v1_interrupt(irq, hw);
+	if (ipw->hardware->hw_version == HW_VERSION_1)
+		return ipwireless_handle_v1_interrupt(irq, ipw->hardware);
 	else
-		return ipwireless_handle_v2_v3_interrupt(irq, hw);
+		return ipwireless_handle_v2_v3_interrupt(irq, ipw->hardware);
 }
 
 static void flush_packets_to_hw(struct ipw_hardware *hw)
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 082146a..dff24da 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -93,8 +93,6 @@ static int ipwireless_probe(struct pcmcia_device *p_dev,
 	p_dev->io.NumPorts1 = cfg->io.win[0].len;
 	p_dev->io.IOAddrLines = 16;
 
-	p_dev->irq.IRQInfo1 = cfg->irq.IRQInfo1;
-
 	/* 0x40 causes it to generate level mode interrupts. */
 	/* 0x04 enables IREQ pin. */
 	p_dev->conf.ConfigIndex = cfg->index | 0x44;
@@ -197,9 +195,8 @@ static int config_ipwireless(struct ipw_dev *ipw)
 	link->conf.Attributes = CONF_ENABLE_IRQ;
 	link->conf.IntType = INT_MEMORY_AND_IO;
 
-	link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
+	link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 	link->irq.Handler = ipwireless_interrupt;
-	link->irq.Instance = ipw->hardware;
 
 	INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
 
@@ -315,7 +312,6 @@ static int ipwireless_attach(struct pcmcia_device *link)
 
 	ipw->link = link;
 	link->priv = ipw;
-	link->irq.Instance = ipw;
 
 	/* Link this device into our device list. */
 	link->dev_node = &ipw->nodes[0];
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 09b2590..c31a0d9 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -554,7 +554,6 @@ static int mgslpc_probe(struct pcmcia_device *link)
 
     /* Interrupt setup */
     link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-    link->irq.IRQInfo1   = IRQ_LEVEL_ID;
     link->irq.Handler = NULL;
 
     link->conf.Attributes = 0;
@@ -609,9 +608,7 @@ static int mgslpc_config(struct pcmcia_device *link)
     link->conf.ConfigIndex = 8;
     link->conf.Present = PRESENT_OPTION;
 
-    link->irq.Attributes |= IRQ_HANDLE_PRESENT;
     link->irq.Handler     = mgslpc_isr;
-    link->irq.Instance    = info;
 
     ret = pcmcia_request_irq(link, &link->irq);
     if (ret)