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authorFelix Fietkau <nbd@openwrt.org>2010-01-15 03:00:48 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-01-15 17:02:07 -0500
commit43d3534344bbdcfa9c61a6b38490cd4cbb2f6bb6 (patch)
tree66b87eb3d8c1751af37cf66afde977bb100db4a8 /net/mac80211
parent84920e3e47f654a22b540606fb8c1ab90b870942 (diff)
mac80211: force use_short_slot=true for 5GHz
Normally 5GHz does not have a concept of long vs short slot time, however the slot time that it ends up using is the same as for 2.4 GHZ and use_short_slot == true Because of that, it makes more sense to force use_short_slot = true whenever 5 GHz is being used, so that this particular check does not have to be in every single driver that uses this flag. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/cfg.c7
-rw-r--r--net/mac80211/mlme.c2
2 files changed, 9 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8286df5822d..b0102c538b3 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1085,6 +1085,13 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
params->use_short_preamble;
changed |= BSS_CHANGED_ERP_PREAMBLE;
}
+
+ if (!sdata->vif.bss_conf.use_short_slot &&
+ sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
+ sdata->vif.bss_conf.use_short_slot = true;
+ changed |= BSS_CHANGED_ERP_SLOT;
+ }
+
if (params->use_short_slot_time >= 0) {
sdata->vif.bss_conf.use_short_slot =
params->use_short_slot_time;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 2746391248d..a82564e73d9 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -670,6 +670,8 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
}
use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME);
+ if (sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+ use_short_slot = true;
if (use_protection != bss_conf->use_cts_prot) {
bss_conf->use_cts_prot = use_protection;