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authorEliad Peller <eliad@wizery.com>2013-11-11 20:14:01 +0200
committerJohannes Berg <johannes.berg@intel.com>2013-11-25 20:52:05 +0100
commit21f659bf1f93f7052b977d95cca560f02dc2edce (patch)
tree4c6634f65996b574b512f864fb77337ba34fbb1c /net/mac80211/sta_info.c
parentfbdd90ea830162960fb8fbe377dfef9a54d74d2f (diff)
downloadop-kernel-dev-21f659bf1f93f7052b977d95cca560f02dc2edce.zip
op-kernel-dev-21f659bf1f93f7052b977d95cca560f02dc2edce.tar.gz
mac80211: add min required channel definition field
Add a new field to ieee80211_chanctx_conf to indicate the min required channel configuration. Tuning to a narrower channel might help reducing the noise level and saving some power. The min required channel definition is the max of all min required channel definitions of the interfaces bound to this channel context. In AP mode, use 20MHz when there are no connected station. When a new station is added/removed, calculate the new max bandwidth supported by any of the stations (e.g. 80MHz when 80MHz and 40MHz stations are connected). In other cases, simply use bss_conf.chandef as the min required chandef. Notify drivers about changes to this field by calling drv_change_chanctx with a new CHANGE_MIN_WIDTH notification. Signed-off-by: Eliad Peller <eliad@wizery.com> Reviewed-by: Johannes Berg <johannes.berg@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/sta_info.c')
-rw-r--r--net/mac80211/sta_info.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 45b5f61..7b69d4c 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -507,6 +507,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
set_sta_flag(sta, WLAN_STA_INSERTED);
+ ieee80211_recalc_min_chandef(sdata);
ieee80211_sta_debugfs_add(sta);
rate_control_add_sta_debugfs(sta);
@@ -869,6 +870,7 @@ int __must_check __sta_info_destroy(struct sta_info *sta)
rate_control_remove_sta_debugfs(sta);
ieee80211_sta_debugfs_remove(sta);
+ ieee80211_recalc_min_chandef(sdata);
call_rcu(&sta->rcu_head, free_sta_rcu);
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