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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-11-18 04:28:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-20 01:39:52 -0800 |
| commit | 11b4aa03b212cbaa969df25e723fbd400a6e24b9 (patch) | |
| tree | b0ebca9928b2184fc498996a9871fad06542538a /drivers | |
| parent | bcb3336ce4354395e38df7e2da110fca61f86a84 (diff) | |
| download | linux-3.10-11b4aa03b212cbaa969df25e723fbd400a6e24b9.tar.gz linux-3.10-11b4aa03b212cbaa969df25e723fbd400a6e24b9.tar.bz2 linux-3.10-11b4aa03b212cbaa969df25e723fbd400a6e24b9.zip | |
mv643xx_eth: fix recycle check bound
When mv643xx_eth allocates skbuffs, it adds
'dma_get_cache_alignment() - 1' to the length it needs, so that it can
align the skb's ->data pointer to a cache boundary. When checking
whether a transmitted skbuff can be reused as a receive buffer, these
bytes needs to be included into the minimum bound for the recycle check.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/mv643xx_eth.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index baa7e845a01..e513f76f2a9 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -899,7 +899,8 @@ static int txq_reclaim(struct tx_queue *txq, int budget, int force) if (skb != NULL) { if (skb_queue_len(&mp->rx_recycle) < mp->default_rx_ring_size && - skb_recycle_check(skb, mp->skb_size)) + skb_recycle_check(skb, mp->skb_size + + dma_get_cache_alignment() - 1)) __skb_queue_head(&mp->rx_recycle, skb); else dev_kfree_skb(skb); |