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Date:	Tue, 19 Feb 2008 12:46:03 -0500
From:	Andy Gospodarek <>
Subject: [PATCH] [2.6.25-rc2] igb: Fix panic with NICs with 1000BASE-SX PHY

From: Bill Hayes <>

Auke, Jeff and David,

This patch eliminates a kernel panic with the igb driver in 2.6.25-rc2 when 
running on a Intel 82575 Ethernet controller with a 1000BASE-SX PHY.  The 
panic does not happen with the 1000BASE-T PHY, only with a SX connection.  

Signed-off-by: Bill Hayes <>
Signed-off-by: Andy Gospodarek <>

 drivers/net/igb/igb_main.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d4eb8e2..666c8f0 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -843,7 +843,8 @@ void igb_reset(struct igb_adapter *adapter)
-	adapter->hw.phy.ops.get_phy_info(&adapter->hw);
+	if (adapter->hw.phy.ops.get_phy_info)
+		adapter->hw.phy.ops.get_phy_info(&adapter->hw);
@@ -2083,7 +2084,8 @@ static void igb_set_multi(struct net_device *netdev)
 static void igb_update_phy_info(unsigned long data)
 	struct igb_adapter *adapter = (struct igb_adapter *) data;
-	adapter->hw.phy.ops.get_phy_info(&adapter->hw);
+	if (adapter->hw.phy.ops.get_phy_info)
+		adapter->hw.phy.ops.get_phy_info(&adapter->hw);

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