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mac80211 : fix unaligned rx skb 

mac80211 is checking is the skb is aligned on 32 bit boundary.
But it is checking against ethernet header, whereas Linux expect IP
header aligned.  And ethernet ether size is 6*2+2=14, so aligning
ethernet header make IP header unaligned.

Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
matthieu castet 2009-06-04 22:16:18 +02:00 committed by John W. Linville
parent b52a033c2c
commit dacb6f1d8f
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/rx.c
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@ -1335,7 +1335,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
* mac80211. That also explains the __skb_push()
* below.
*/
align = (unsigned long)skb->data & 3;
align = ((unsigned long)(skb->data + sizeof(struct ethhdr))) & 3;
if (align) {
if (WARN_ON(skb_headroom(skb) < 3)) {
dev_kfree_skb(skb);