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authorSimon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>2013-07-08 16:55:51 +0200
committerJohannes Berg <johannes.berg@intel.com>2013-07-16 09:58:04 +0300
commit438b61b77082e70d2a408cc77b8c5faac312e940 (patch)
tree2a4575f29605a16fc051a6b81c71d0f3b31d7d77 /net/mac80211/rc80211_minstrel_ht.c
parentmac80211/rc80211: add chandef to rate initialization (diff)
downloadlinux-dev-438b61b77082e70d2a408cc77b8c5faac312e940.tar.xz
linux-dev-438b61b77082e70d2a408cc77b8c5faac312e940.zip
mac80211: fix timing for 5 MHz and 10 MHz channels
according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Diffstat (limited to 'net/mac80211/rc80211_minstrel_ht.c')
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 52562973fbd1..7475a7a33797 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -862,8 +862,9 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
mi->sta = sta;
mi->stats_update = jiffies;
- ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1);
- mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1) + ack_dur;
+ ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1, 0);
+ mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1, 0);
+ mi->overhead += ack_dur;
mi->overhead_rtscts = mi->overhead + 2 * ack_dur;
mi->avg_ampdu_len = MINSTREL_FRAC(1, 1);