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>

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c
index 76706e12d731..37f4a6fdc3ef 100644
--- a/drivers/net/pcmcia/ibmtr_cs.c
+++ b/drivers/net/pcmcia/ibmtr_cs.c
@@ -119,6 +119,12 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
 };
 
+static irqreturn_t ibmtr_interrupt(int irq, void *dev_id) {
+	ibmtr_dev_t *info = dev_id;
+	struct net_device *dev = info->dev;
+	return tok_interrupt(irq, dev);
+};
+
 /*======================================================================
 
     ibmtr_attach() creates an "instance" of the driver, allocating
@@ -150,14 +156,13 @@ static int __devinit ibmtr_attach(struct pcmcia_device *link)
     link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
     link->io.NumPorts1 = 4;
     link->io.IOAddrLines = 16;
-    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
-    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-    link->irq.Handler = &tok_interrupt;
+    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+    link->irq.Handler = ibmtr_interrupt;
     link->conf.Attributes = CONF_ENABLE_IRQ;
     link->conf.IntType = INT_MEMORY_AND_IO;
     link->conf.Present = PRESENT_OPTION;
 
-    link->irq.Instance = info->dev = dev;
+    info->dev = dev;
 
     SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);