From 38817f6979fe5817056de8c1fade925831a7a0e6 Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Sat, 22 Jan 2011 18:57:43 -0500
Subject: [PATCH] s2io: delete unused do_spin_lock variable

This thing is delcared, initialized and later written to, but never
read once.   Write only memory is overrated.

Found buried in one of tglx's RT merge commits.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Thomas Gleixner <tglx@linutronix.de>

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 9984903..3b40857 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -4083,7 +4083,6 @@ static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned long flags = 0;
 	u16 vlan_tag = 0;
 	struct fifo_info *fifo = NULL;
-	int do_spin_lock = 1;
 	int offload_type;
 	int enable_per_list_interrupt = 0;
 	struct config_param *config = &sp->config;
@@ -4136,7 +4135,6 @@ static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
 					queue += sp->udp_fifo_idx;
 					if (skb->len > 1024)
 						enable_per_list_interrupt = 1;
-					do_spin_lock = 0;
 				}
 			}
 		}
-- 
1.7.1.1