[netdrvr] irq handler minor cleanups in several drivers

* use irq_handler_t where appropriate

* no need to use 'irq' function arg, its already stored in a data struct

* rename irq handler 'irq' argument to 'dummy', where the function
  has been analyzed and proven not to use its first argument.

* remove always-false "dev_id == NULL" test from irq handlers

* remove pointless casts from void*

* declance: irq argument is not const

* add KERN_xxx printk prefix

* fix minor whitespace weirdness

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 4 insertions, 13 deletions

diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index 7e7b5828214a..1f26da761e9f 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -1505,22 +1505,13 @@ static void smsc_ircc_sir_receive(struct smsc_ircc_cb *self)
  *    An interrupt from the chip has arrived. Time to do some work
  *
  */
-static irqreturn_t smsc_ircc_interrupt(int irq, void *dev_id)
+static irqreturn_t smsc_ircc_interrupt(int dummy, void *dev_id)
 {
-	struct net_device *dev = (struct net_device *) dev_id;
-	struct smsc_ircc_cb *self;
+	struct net_device *dev = dev_id;
+	struct smsc_ircc_cb *self = netdev_priv(dev);
 	int iobase, iir, lcra, lsr;
 	irqreturn_t ret = IRQ_NONE;
 
-	if (dev == NULL) {
-		printk(KERN_WARNING "%s: irq %d for unknown device.\n",
-		       driver_name, irq);
-		goto irq_ret;
-	}
-
-	self = netdev_priv(dev);
-	IRDA_ASSERT(self != NULL, return IRQ_NONE;);
-
 	/* Serialise the interrupt handler in various CPUs, stop Tx path */
 	spin_lock(&self->lock);
 
@@ -1565,7 +1556,7 @@ static irqreturn_t smsc_ircc_interrupt(int irq, void *dev_id)
 
  irq_ret_unlock:
 	spin_unlock(&self->lock);
- irq_ret:
+
 	return ret;
 }