Subject: [PATCH 16/21]: powerpc/cell spidernet

From: [email-masked] (Linas Vepstas)
Date: Tue, 10 Oct 2006 16:15:29 -0500

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

Signed-off-by: Linas Vepstas <[email-masked]>
Cc: Arnd Bergmann <[email-masked]>
Cc: James K Lewis <[email-masked]>

----
 drivers/net/spider_net.c |    2 --
 1 file changed, 2 deletions(-)

Index: linux-2.6.18-mm2/drivers/net/spider_net.c
===================================================================
--- linux-2.6.18-mm2.orig/drivers/net/spider_net.c	2006-10-10 13:20:08.000000000 -0500
+++ linux-2.6.18-mm2/drivers/net/spider_net.c	2006-10-10 13:21:41.000000000 -0500
@@ -759,8 +759,6 @@ spider_net_release_tx_chain(struct spide
 	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;