Fix oinkmaster patch.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.39 / patches.drivers / netxen-hold-tx-lock-while-sending-firmware-commands.patch

From 03e678ee968ae54b79c1580c2935895bd863ad95 Mon Sep 17 00:00:00 2001
From: Dhananjay Phadke <dhananjay@netxen.com>
Date: Wed, 14 Jan 2009 20:49:43 -0800
Subject: netxen: hold tx lock while sending firmware commands
Acked-by: Karsten Keil <kkeil@novell.com>
Reference: bnc#472416

Some firmware commands like mac address addition/deletion are sent
on the transmit ring. So need to hold the tx lock before touching
tx producer/consumer indices.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netxen/netxen_nic_hw.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index e2d2a2f..821cff6 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -503,6 +503,8 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
 
 	i = 0;
 
+	netif_tx_lock_bh(adapter->netdev);
+
 	producer = adapter->cmd_producer;
 	do {
 		cmd_desc = &cmd_desc_arr[i];
@@ -527,6 +529,8 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
 
 	netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
 
+	netif_tx_unlock_bh(adapter->netdev);
+
 	return 0;
 }
 
-- 
1.5.6.4