netdev - [PATCH 14/16] Spidernet Avoid possible RX chain corruption

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Message-ID: <20061206234628.GN4649@austin.ibm.com>
Date:	Wed, 6 Dec 2006 17:46:28 -0600
From:	linas@...tin.ibm.com (Linas Vepstas)
To:	Andrew Morton <akpm@...l.org>
Cc:	jgarzik@...ox.com, netdev@...r.kernel.org, linuxppc-dev@...abs.org,
	James K Lewis <jklewis@...ibm.com>,
	Arnd Bergmann <arnd@...db.de>,
	Geoff Levand <geoffrey.levand@...sony.com>
Subject: [PATCH 14/16] 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	2006-12-06 16:03:16.000000000 -0600
+++ linux-2.6.19-git7/drivers/net/spider_net.c	2006-12-06 16:03:18.000000000 -0600
@@ -1195,7 +1195,6 @@ spider_net_handle_rxram_full(struct spid
 	while (spider_net_decode_one_descr(card, 0));
 
 	spider_net_refill_rx_chain(card);
-	spider_net_enable_rxchtails(card);
 	spider_net_enable_rxdmac(card);
 	netif_rx_schedule(card->netdev);
 	spider_net_rx_irq_on(card);
-
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