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Commit b21606a7 authored by Linas Vepstas's avatar Linas Vepstas Committed by Jeff Garzik
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[PATCH] powerpc/cell spidernet incorrect offset 



Bugfix -- the rx chain is in memory after the tx chain --
the offset being used was wrong, resulting in memory corruption
when the size of the rx and tx rings weren't exactly the same.

Signed-off-by: default avatarLinas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 98b9040c

drivers/net/spider_net.c

+3 −1
Original line number Diff line number Diff line
@@ -1628,8 +1628,10 @@ spider_net_open(struct net_device *netdev) 
	if (spider_net_init_chain(card, &card->tx_chain, card->descr,

			PCI_DMA_TODEVICE, card->tx_desc))

		goto alloc_tx_failed;



	/* rx_chain is after tx_chain, so offset is descr + tx_count */

	if (spider_net_init_chain(card, &card->rx_chain,

			card->descr + card->rx_desc,

			card->descr + card->tx_desc,

			PCI_DMA_FROMDEVICE, card->rx_desc))

		goto alloc_rx_failed;