diff options
-rw-r--r-- | net/mac80211/chan.c | 38 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 1 | ||||
-rw-r--r-- | net/mac80211/iface.c | 9 |
3 files changed, 45 insertions, 3 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 53f0312..80e5552 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -4,6 +4,7 @@ #include <linux/nl80211.h> #include <linux/export.h> +#include <linux/rtnetlink.h> #include <net/cfg80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -197,6 +198,15 @@ static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) ctx = container_of(conf, struct ieee80211_chanctx, conf); + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct ieee80211_sub_if_data *vlan; + + /* for the VLAN list */ + ASSERT_RTNL(); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + rcu_assign_pointer(vlan->vif.chanctx_conf, NULL); + } + ieee80211_unassign_vif_chanctx(sdata, ctx); if (ctx->refcount == 0) ieee80211_free_chanctx(local, ctx); @@ -316,6 +326,15 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, goto out; } + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct ieee80211_sub_if_data *vlan; + + /* for the VLAN list */ + ASSERT_RTNL(); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + rcu_assign_pointer(vlan->vif.chanctx_conf, &ctx->conf); + } + ieee80211_recalc_smps_chanctx(local, ctx); out: mutex_unlock(&local->chanctx_mtx); @@ -331,6 +350,25 @@ void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) mutex_unlock(&sdata->local->chanctx_mtx); } +void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_sub_if_data *ap; + struct ieee80211_chanctx_conf *conf; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->bss)) + return; + + ap = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); + + mutex_lock(&local->chanctx_mtx); + + conf = rcu_dereference_protected(ap->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + rcu_assign_pointer(sdata->vif.chanctx_conf, conf); + mutex_unlock(&local->chanctx_mtx); +} + void ieee80211_iter_chan_contexts_atomic( struct ieee80211_hw *hw, void (*iter)(struct ieee80211_hw *hw, diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 112bb61..28fc987 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1628,6 +1628,7 @@ ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, const struct cfg80211_chan_def *chandef, enum ieee80211_chanctx_mode mode); void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); +void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *chanctx); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 09a80b5..54fb7f9 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -586,11 +586,13 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: - /* no need to tell driver, but set carrier */ - if (rtnl_dereference(sdata->bss->beacon)) + /* no need to tell driver, but set carrier and chanctx */ + if (rtnl_dereference(sdata->bss->beacon)) { + ieee80211_vif_vlan_copy_chanctx(sdata); netif_carrier_on(dev); - else + } else { netif_carrier_off(dev); + } break; case NL80211_IFTYPE_MONITOR: if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { @@ -839,6 +841,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: list_del(&sdata->u.vlan.list); + rcu_assign_pointer(sdata->vif.chanctx_conf, NULL); /* no need to tell driver */ break; case NL80211_IFTYPE_MONITOR: |