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authorJohn W. Linville <linville@tuxdriver.com>2012-12-11 16:04:03 -0500
committerJohn W. Linville <linville@tuxdriver.com>2012-12-11 16:04:03 -0500
commitc66cfd5325bb215a251f4685fac8718b1da33197 (patch)
tree7c8ed5289c4a99ffcd2588ac48b5a512312a375b /net/mac80211/ibss.c
parentecbbec2eb093d2ef205de371af986f0360fca539 (diff)
parent8acbcddb5fb3a1dc081defe51b6ac42a7ab0b398 (diff)
Merge branch 'for-john' of git://git.sipsolutions.net/mac80211-next
Diffstat (limited to 'net/mac80211/ibss.c')
-rw-r--r--net/mac80211/ibss.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index fa862b24a7e..8881fc77fb1 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -201,6 +201,20 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
bss_change |= BSS_CHANGED_BASIC_RATES;
bss_change |= BSS_CHANGED_HT;
bss_change |= BSS_CHANGED_IBSS;
+
+ /*
+ * In 5 GHz/802.11a, we can always use short slot time.
+ * (IEEE 802.11-2012 18.3.8.7)
+ *
+ * In 2.4GHz, we must always use long slots in IBSS for compatibility
+ * reasons.
+ * (IEEE 802.11-2012 19.4.5)
+ *
+ * HT follows these specifications (IEEE 802.11-2012 20.3.18)
+ */
+ sdata->vif.bss_conf.use_short_slot = chan->band == IEEE80211_BAND_5GHZ;
+ bss_change |= BSS_CHANGED_ERP_SLOT;
+
sdata->vif.bss_conf.ibss_joined = true;
sdata->vif.bss_conf.ibss_creator = creator;
ieee80211_bss_info_change_notify(sdata, bss_change);