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From: "Michael Chan" <mchan@broadcom.com>
To: "David Miller" <davem@davemloft.net>
Cc: "netdev" <netdev@vger.kernel.org>
Subject: [PATCH v2 4/16][BNX2]: Fix race conditions when calling register_netdev().
Date: Thu, 03 May 2007 00:29:06 -0700	[thread overview]
Message-ID: <1178177347.4909.68.camel@dell> (raw)
In-Reply-To: <1178068303.4820.35.camel@dell>

[BNX2]: Fix race conditions when calling register_netdev().
    
Hot-plug scripts can call bnx2_open() as soon as register_netdev() is
called in bnx2_init_one().  We need to call pci_set_drvdata() and
setup everything before calling register_netdev(). netif_carrier_off()
also needs to be moved to bnx2_open() to avoid race conditions with
the irq.
    
Signed-off-by: Michael Chan <mchan@broadcom.com>

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 679ee66..cffdec3 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -4350,6 +4350,8 @@ bnx2_open(struct net_device *dev)
 	struct bnx2 *bp = netdev_priv(dev);
 	int rc;
 
+	netif_carrier_off(dev);
+
 	bnx2_set_power_state(bp, PCI_D0);
 	bnx2_disable_int(bp);
 
@@ -6086,6 +6088,18 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	dev->poll_controller = poll_bnx2;
 #endif
 
+	pci_set_drvdata(pdev, dev);
+
+	memcpy(dev->dev_addr, bp->mac_addr, 6);
+	memcpy(dev->perm_addr, bp->mac_addr, 6);
+	bp->name = board_info[ent->driver_data].name;
+
+	dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
+#ifdef BCM_VLAN
+	dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+#endif
+	dev->features |= NETIF_F_TSO | NETIF_F_TSO_ECN;
+
 	if ((rc = register_netdev(dev))) {
 		dev_err(&pdev->dev, "Cannot register net device\n");
 		if (bp->regview)
@@ -6097,11 +6111,6 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return rc;
 	}
 
-	pci_set_drvdata(pdev, dev);
-
-	memcpy(dev->dev_addr, bp->mac_addr, 6);
-	memcpy(dev->perm_addr, bp->mac_addr, 6);
-	bp->name = board_info[ent->driver_data].name,
 	printk(KERN_INFO "%s: %s (%c%d) PCI%s %s %dMHz found at mem %lx, "
 		"IRQ %d, ",
 		dev->name,
@@ -6119,15 +6128,6 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		printk("%2.2x", dev->dev_addr[i]);
 	printk("\n");
 
-	dev->features |= NETIF_F_SG;
-	dev->features |= NETIF_F_IP_CSUM;
-#ifdef BCM_VLAN
-	dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-#endif
-	dev->features |= NETIF_F_TSO | NETIF_F_TSO_ECN;
-
-	netif_carrier_off(bp->dev);
-
 	return 0;
 }
 



  parent reply	other threads:[~2007-05-03  6:42 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-02  1:11 [PATCH 0/20][BNX2]: Bug fixes and more 5709 suppot Michael Chan
2007-05-02  7:10 ` Jeff Garzik
2007-05-02  7:14   ` David Miller
2007-05-03  7:25 ` [ETHTOOL]: Add 2.5G bit definitions Michael Chan
2007-05-03 11:11   ` Jeff Garzik
2007-05-03 20:07     ` David Miller
2007-05-03 20:17   ` David Miller
2007-05-03  7:27 ` [PATCH] ethtool: Add 2.5G support Michael Chan
2007-05-03 11:11   ` Jeff Garzik
2007-05-11 20:46   ` Jeff Garzik
2007-05-03  7:27 ` [PATCH v2 0/16][BNX2]: Bug fixes and more 5709 suppot Michael Chan
2007-05-03  7:28 ` [PATCH v2 1/16][BNX2]: Block MII access when ifdown Michael Chan
2007-05-03 20:18   ` David Miller
2007-05-03  7:28 ` [PATCH v2 2/16][BNX2]: Fix register and memory test on 5709 Michael Chan
2007-05-03 20:18   ` David Miller
2007-05-03  7:28 ` [PATCH v2 3/16][BNX2]: Add 40-bit DMA workaround for 5708 Michael Chan
2007-05-03 20:19   ` David Miller
2007-05-03  7:29 ` Michael Chan [this message]
2007-05-03 20:20   ` [PATCH v2 4/16][BNX2]: Fix race conditions when calling register_netdev() David Miller
2007-05-03  7:29 ` [PATCH v2 5/16][BNX2]: Save PCI state during suspend Michael Chan
2007-05-03 20:20   ` David Miller
2007-05-03  7:29 ` [PATCH v2 6/16][BNX2]: Update 5708 firmware Michael Chan
2007-05-03 20:21   ` David Miller
2007-05-03  7:29 ` [PATCH v2 8/16][BNX2]: Add ipv6 TSO and checksum for 5709 Michael Chan
2007-05-03 20:22   ` David Miller
2007-05-03  7:30 ` [PATCH v2 9/16][BNX2]: Put MII register offsets in the bnx2 struct Michael Chan
2007-05-03 20:23   ` David Miller
2007-05-03  7:30 ` [PATCH v2 10/16][BNX2]: Re-structure the 2.5G Serdes code Michael Chan
2007-05-03 20:23   ` David Miller
2007-05-03  7:30 ` [PATCH v2 11/16][BNX2]: Add support for 5709 Serdes Michael Chan
2007-05-03 20:23   ` David Miller
2007-05-03  7:30 ` [PATCH v2 12/16][BNX2]: Add indirect spinlock Michael Chan
2007-05-03 20:24   ` David Miller
2007-05-03  7:31 ` [PATCH v2 13/16][BNX2]: Restructure PHY event handling Michael Chan
2007-05-03 20:24   ` David Miller
2007-05-03  7:31 ` [PATCH v2 14/16][BNX2]: Add 1-shot MSI handler for 5709 Michael Chan
2007-05-03 20:24   ` David Miller
2007-05-03  7:31 ` [PATCH v2 15/16][BNX2]: Print bus information for PCIE devices Michael Chan
2007-05-03 20:25   ` David Miller
2007-05-03  7:32 ` [PATCH v2 16/16][BNX2]: Update version and reldate Michael Chan
2007-05-03 12:40   ` Jeff Garzik
2007-05-03 20:25   ` David Miller
     [not found] ` <1178177565.4909.80.camel@dell>
2007-05-03 20:21   ` [PATCH v2 7/16][BNX2]: Update 5709 firmware David Miller

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