netdev - [PATCH 12/14] Spidernet Avoid possible RX chain corruption

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Message-ID: <20061213212301.GL1915@austin.ibm.com>
Date:	Wed, 13 Dec 2006 15:23:01 -0600
From:	linas@...tin.ibm.com (Linas Vepstas)
To:	Andrew Morton <akpm@...l.org>
Cc:	netdev@...r.kernel.org, linuxppc-dev@...abs.org, jgarzik@...ox.com,
	Christoph Hellwig <hch@...radead.org>,
	Ishizaki Kou <kou.ishizaki@...hiba.co.jp>,
	Jens Osterkamp <Jens.Osterkamp@....de>,
	James K Lewis <jim@...ewis.com>,
	Arnd Bergmann <arnd@...db.de>
Subject:  [PATCH 12/14] Spidernet Avoid possible RX chain corruption


Delete possible source of chain corruption; the hardware
already knows the location of the tail, and writing it
again is likely to mess it up.

Signed-off-by: Linas Vepstas <linas@...tin.ibm.com>
Cc: James K Lewis <jklewis@...ibm.com>
Cc: Arnd Bergmann <arnd@...db.de>

----

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

Index: linux-2.6.19-git7/drivers/net/spider_net.c
===================================================================
--- linux-2.6.19-git7.orig/drivers/net/spider_net.c	2006-12-13 14:28:23.000000000 -0600
+++ linux-2.6.19-git7/drivers/net/spider_net.c	2006-12-13 14:28:25.000000000 -0600
@@ -513,7 +513,6 @@ spider_net_alloc_rx_skbs(struct spider_n
 	/* This will allocate the rest of the rx buffers;
 	 * if not, it's business as usual later on. */
 	spider_net_refill_rx_chain(card);
-	spider_net_enable_rxchtails(card);
 	spider_net_enable_rxdmac(card);
 	return 0;
 
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