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| author | Johannes Berg <johannes.berg@intel.com> | 2013-02-08 12:07:44 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-02-11 18:44:57 +0100 |
| commit | 1f4ac5a63f897a480fffd0d5c843b03f02c384a5 (patch) | |
| tree | d7ae579e6dff49cfc5c8eca2812fa04faa7246fc /net/mac80211/cfg.c | |
| parent | 757af6fefd53628bcfe75f7fbd302c5d4c02eba5 (diff) | |
| download | linux-1f4ac5a63f897a480fffd0d5c843b03f02c384a5.tar.gz | |
mac80211: explicitly copy channels to VLANs where needed
Currently the code assigns channel contexts to VLANs (for use by the TX/RX code) when the AP master gets its channel context assigned. This works fine, but in the upcoming radar detection work the VLANs don't require a channel context (during radar detection) and assigning one to them anyway causes issues with locking and also inconsistencies -- a VLAN interface that is added before radar detection would get the channel context, while one added during it wouldn't. Fix these issues moving the channel context copying to a new explicit operation that will not be used in the radar detection code. Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index f4f7e7691077..8f6b593a921f 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -933,6 +933,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, IEEE80211_CHANCTX_SHARED); if (err) return err; + ieee80211_vif_copy_chanctx_to_vlans(sdata, false); /* * Apply control port protocol, this allows us to @@ -1047,6 +1048,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); skb_queue_purge(&sdata->u.ap.ps.bc_buf); + ieee80211_vif_copy_chanctx_to_vlans(sdata, true); ieee80211_vif_release_channel(sdata); return 0; |