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[PATCH] powerpc/cell spidernet

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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>
This commit is contained in:
Linas Vepstas 2006-10-10 16:15:29 -05:00 committed by Jeff Garzik
parent 9cc7bf7edf
commit 499eea1872
1 changed files with 0 additions and 2 deletions
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2
drivers/net/spider_net.c
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@ -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;