diff options
Diffstat (limited to 'net/mac80211/chan.c')
| -rw-r--r-- | net/mac80211/chan.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index bfaa486d928c..f84b86028a9c 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -3,6 +3,7 @@ */ #include <linux/nl80211.h> +#include <linux/export.h> #include <net/cfg80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -134,7 +135,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local, } } - list_add(&ctx->list, &local->chanctx_list); + list_add_rcu(&ctx->list, &local->chanctx_list); return ctx; } @@ -153,7 +154,7 @@ static void ieee80211_free_chanctx(struct ieee80211_local *local, drv_remove_chanctx(local, ctx); } - list_del(&ctx->list); + list_del_rcu(&ctx->list); kfree_rcu(ctx, rcu_head); } @@ -379,3 +380,20 @@ void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) __ieee80211_vif_release_channel(sdata); mutex_unlock(&sdata->local->chanctx_mtx); } + +void ieee80211_iter_chan_contexts_atomic( + struct ieee80211_hw *hw, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_chanctx_conf *chanctx_conf, + void *data), + void *iter_data) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_chanctx *ctx; + + rcu_read_lock(); + list_for_each_entry_rcu(ctx, &local->chanctx_list, list) + iter(hw, &ctx->conf, iter_data); + rcu_read_unlock(); +} +EXPORT_SYMBOL_GPL(ieee80211_iter_chan_contexts_atomic); |