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authorIngo Molnar <mingo@kernel.org>2013-08-12 19:51:43 +0200
committerIngo Molnar <mingo@kernel.org>2013-08-12 19:51:43 +0200
commit6356bb0ad6525dae93c06478a098ed3848e9ab01 (patch)
tree8fdbda28405fb0b1c213f2a87c532a760510adf0 /net/mac80211/rx.c
parent7781544e7c367d0cae87feb0f0675fd333bfc9d8 (diff)
parent0ca06c0857aee11911f91621db14498496f2c2cd (diff)
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Merge tag 'please-pull-mce-f-bit' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras
Pull MCE-uncorrected-error fix from Tony Luck: "Bit 12 may or may not be set in MCi_STATUS.MCACOD when an uncorrected error is reported. Ignore it when checking error signatures." Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c10
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)) {