diff options
| author | David S. Miller <davem@davemloft.net> | 2013-08-03 21:36:46 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-03 21:36:46 -0700 |
| commit | 0e76a3a587fc7abda2badf249053b427baad255e (patch) | |
| tree | 646a1da67dc25654552028225ca4b7a0a8043cc9 /net/mac80211/rx.c | |
| parent | fba3679d34511c42bf452e89dda457a1219eb43a (diff) | |
| parent | 72a67a94bcba71a5fddd6b3596a20604d2b5dcd6 (diff) | |
| download | linux-0e76a3a587fc7abda2badf249053b427baad255e.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge net into net-next to setup some infrastructure Eric
Dumazet needs for usbnet changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 23dbcfc69b3b..2c5a79bd3777 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -936,8 +936,14 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); - /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */ - if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) { + /* + * Drop duplicate 802.11 retransmissions + * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery") + */ + if (rx->skb->len >= 24 && rx->sta && + !ieee80211_is_ctl(hdr->frame_control) && + !ieee80211_is_qos_nullfunc(hdr->frame_control) && + !is_multicast_ether_addr(hdr->addr1)) { if (unlikely(ieee80211_has_retry(hdr->frame_control) && rx->sta->last_seq_ctrl[rx->seqno_idx] == hdr->seq_ctrl)) { |