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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2005-10-28 15:14:52 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-28 19:06:44 -0400 |
| commit | 2c36ed22c6f64de94c6c3b7258dd7285bb093401 (patch) | |
| tree | bf8ab970180df5abe28d0c75d993a86a063bd8d5 /drivers/net/wireless/orinoco.c | |
| parent | 63f57fb69b017230c77c40f1713e40885ae6d159 (diff) | |
| download | blackbird-op-linux-2c36ed22c6f64de94c6c3b7258dd7285bb093401.tar.gz blackbird-op-linux-2c36ed22c6f64de94c6c3b7258dd7285bb093401.zip | |
[PATCH] Better fixup for the orinoco driver
The latest kernel added a pretty ugly fix for the orinoco etherleak bug
which contains bogus skb->len checks already done by the caller and causes
copies of all odd sized frames (which are quite common)
While the skb->len check should be ripped out the other fix is harder to do
properly so I'm proposing for this the -mm tree only until next 2.6.x so
that it gets tested.
Instead of copying buffers around blindly this code implements a padding
aware version of the hermes buffer writing function which does padding as
the buffer is loaded and thus more cleanly and without bogus 1.5K copies.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net/wireless/orinoco.c')
| -rw-r--r-- | drivers/net/wireless/orinoco.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c index 70a3477a2061..488ab06fb79f 100644 --- a/drivers/net/wireless/orinoco.c +++ b/drivers/net/wireless/orinoco.c @@ -542,14 +542,21 @@ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev) stats->tx_errors++; goto fail; } + /* Actual xfer length - allow for padding */ + len = ALIGN(data_len, 2); + if (len < ETH_ZLEN - ETH_HLEN) + len = ETH_ZLEN - ETH_HLEN; } else { /* IEEE 802.3 frame */ data_len = len + ETH_HLEN; data_off = HERMES_802_3_OFFSET; p = skb->data; + /* Actual xfer length - round up for odd length packets */ + len = ALIGN(data_len, 2); + if (len < ETH_ZLEN) + len = ETH_ZLEN; } - /* Round up for odd length packets */ - err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2), + err = hermes_bap_pwrite_pad(hw, USER_BAP, p, data_len, len, txfid, data_off); if (err) { printk(KERN_ERR "%s: Error %d writing packet to BAP\n", |
