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| author | Sara Sharon <sara.sharon@intel.com> | 2015-12-08 16:04:33 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-01-14 11:13:11 +0100 |
| commit | f9cfa5f354b11e56cd8f019c12e14a42585586cd (patch) | |
| tree | f16388ef9b29255cc5f89c0d3be471792ec7e383 | |
| parent | 23a1f8d44c0bca48f04fc2a2f1edafd826ce6133 (diff) | |
| download | linux-stable-f9cfa5f354b11e56cd8f019c12e14a42585586cd.tar.gz linux-stable-f9cfa5f354b11e56cd8f019c12e14a42585586cd.tar.bz2 linux-stable-f9cfa5f354b11e56cd8f019c12e14a42585586cd.zip | |
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>
| -rw-r--r-- | include/net/mac80211.h | 2 | ||||
| -rw-r--r-- | net/mac80211/rx.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 8da483b2c067..ecab934dc8d9 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1063,7 +1063,7 @@ enum mac80211_rx_flags { RX_FLAG_HT_GF = BIT(13), RX_FLAG_AMPDU_DETAILS = BIT(14), RX_FLAG_PN_VALIDATED = BIT(15), - /* bit 16 free */ + RX_FLAG_DUP_VALIDATED = BIT(16), RX_FLAG_AMPDU_LAST_KNOWN = BIT(17), RX_FLAG_AMPDU_IS_LAST = BIT(18), RX_FLAG_AMPDU_DELIM_CRC_ERROR = BIT(19), diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index a5668b54015f..fe675d76f29c 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") |