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, 9 deletions

diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 1cf7d54fb7e2..a8bf8c1b45ed 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -383,8 +383,8 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 		s->irq.AssignedIRQ = 0;
 	}
 
-	if (req->Attributes & IRQ_HANDLE_PRESENT) {
-		free_irq(req->AssignedIRQ, req->Instance);
+	if (req->Handler) {
+		free_irq(req->AssignedIRQ, p_dev->priv);
 	}
 
 #ifdef CONFIG_PCMCIA_PROBE
@@ -664,7 +664,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 	/* if the underlying IRQ infrastructure allows for it, only allocate
 	 * the IRQ, but do not enable it
 	 */
-	if (!(req->Attributes & IRQ_HANDLE_PRESENT))
+	if (!(req->Handler))
 		type |= IRQ_NOAUTOEN;
 #endif /* IRQ_NOAUTOEN */
 
@@ -674,7 +674,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 	} else {
 		int try;
 		u32 mask = s->irq_mask;
-		void *data = &p_dev->dev.driver; /* something unique to this device */
+		void *data = p_dev; /* something unique to this device */
 
 		for (try = 0; try < 64; try++) {
 			irq = try % 32;
@@ -691,12 +691,12 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 			 * registering a dummy handle works, i.e. if the IRQ isn't
 			 * marked as used by the kernel resource management core */
 			ret = request_irq(irq,
-					  (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action,
+					  (req->Handler) ? req->Handler : test_action,
 					  type,
 					  p_dev->devname,
-					  (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
+					  (req->Handler) ? p_dev->priv : data);
 			if (!ret) {
-				if (!(req->Attributes & IRQ_HANDLE_PRESENT))
+				if (!req->Handler)
 					free_irq(irq, data);
 				break;
 			}
@@ -713,9 +713,9 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 		irq = s->pci_irq;
 	}
 
-	if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) {
+	if (ret && req->Handler) {
 		ret = request_irq(irq, req->Handler, type,
-				  p_dev->devname, req->Instance);
+				  p_dev->devname, p_dev->priv);
 		if (ret) {
 			dev_printk(KERN_INFO, &s->dev,
 				"request_irq() failed\n");