From 499eea18722e43f0ee15e11ac16ffcbd10b70b24 Mon Sep 17 00:00:00 2001
From: Linas Vepstas <linas@austin.ibm.com>
Date: Tue, 10 Oct 2006 16:15:29 -0500
Subject: [PATCH] [PATCH] powerpc/cell spidernet

Remove a dummy register read that is not needed.
This reduces CPU usage notably during transmit.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/spider_net.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index f8d7d0d91a6d..6bb8f1f9437c 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -759,8 +759,6 @@ spider_net_release_tx_chain(struct spider_net_card *card, int brutal)
 	unsigned long flags;
 	int status;
 
-	spider_net_read_reg(card, SPIDER_NET_GDTDMACCNTR);
-
 	while (chain->tail != chain->head) {
 		spin_lock_irqsave(&chain->lock, flags);
 		descr = chain->tail;
-- 
2.20.1