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authorSara Sharon <sara.sharon@intel.com>2015-12-08 14:04:33 (GMT)
committerJohannes Berg <johannes.berg@intel.com>2016-01-14 10:13:11 (GMT)
commitf9cfa5f354b11e56cd8f019c12e14a42585586cd (patch)
treef16388ef9b29255cc5f89c0d3be471792ec7e383 /net/mac80211
parent23a1f8d44c0bca48f04fc2a2f1edafd826ce6133 (diff)
downloadlinux-f9cfa5f354b11e56cd8f019c12e14a42585586cd.tar.xz
mac80211: add flag for duplication check
Add an option for driver to check for packet duplication by itself. This is needed for example by the iwlwifi driver which parallelizes the RX path and does the duplication check per queue. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rx.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a5668b5..fe675d7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1099,6 +1099,9 @@ ieee80211_rx_h_check_dup(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);
+ if (status->flag & RX_FLAG_DUP_VALIDATED)
+ return RX_CONTINUE;
+
/*
* Drop duplicate 802.11 retransmissions
* (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")