linux-kernel - [PATCH] lib82596, netxen: delete pointless tests from irq handler

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Message-ID: <20071019073329.GA5755@havoc.gtf.org>
Date:	Fri, 19 Oct 2007 03:33:29 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] lib82596, netxen: delete pointless tests from irq handler


commit e96888518af94d9f607b996f8b90873330dbfc32
Author: Jeff Garzik <jeff@...zik.org>
Date:   Fri Oct 19 03:14:03 2007 -0400

    [NETDRVR] lib82596, netxen: delete pointless tests from irq handler
    
    Remove always-false tests in irq handler.
    
    Also a few other minor cleanups.
    
    Signed-off-by: Jeff Garzik <jgarzik@...hat.com>

 drivers/net/lib82596.c               |    8 +-------
 drivers/net/netxen/netxen_nic_main.c |   11 ++---------
 2 files changed, 3 insertions(+), 16 deletions(-)

e96888518af94d9f607b996f8b90873330dbfc32
diff --git a/drivers/net/lib82596.c b/drivers/net/lib82596.c
index ffaa14f..9a855e5 100644
--- a/drivers/net/lib82596.c
+++ b/drivers/net/lib82596.c
@@ -1124,12 +1124,6 @@ static irqreturn_t i596_interrupt(int irq, void *dev_id)
 	struct i596_dma *dma;
 	unsigned short status, ack_cmd = 0;
 
-	if (dev == NULL) {
-		printk(KERN_WARNING "%s: irq %d for unknown device.\n",
-		       __FUNCTION__, irq);
-		return IRQ_NONE;
-	}
-
 	lp = netdev_priv(dev);
 	dma = lp->dma;
 
@@ -1140,7 +1134,7 @@ static irqreturn_t i596_interrupt(int irq, void *dev_id)
 
 	DEB(DEB_INTS, printk(KERN_DEBUG
 			     "%s: i596 interrupt, IRQ %d, status %4.4x.\n",
-			dev->name, irq, status));
+			dev->name, dev->irq, status));
 
 	ack_cmd = status & 0xf000;
 
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 601051c..a80f0cd 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -1268,17 +1268,10 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev)
  */
 irqreturn_t netxen_intr(int irq, void *data)
 {
-	struct netxen_adapter *adapter;
-	struct net_device *netdev;
+	struct netxen_adapter *adapter = data;
+	struct net_device *netdev = adapter->netdev;
 	u32 our_int = 0;
 
-	if (unlikely(!irq)) {
-		return IRQ_NONE;	/* Not our interrupt */
-	}
-
-	adapter = (struct netxen_adapter *)data;
-	netdev  = adapter->netdev;
-
 	if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
 		our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
 		/* not our interrupt */
-
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