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[PATCH] powerpc/cell spidernet incorrect offset

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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: Linas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Linas Vepstas 2006-10-10 16:09:40 -05:00 committed by Jeff Garzik
parent 98b9040c74
commit b21606a773
1 changed files with 3 additions and 1 deletions
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4
drivers/net/spider_net.c
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@ -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;