no need to consider all the vifs, but only the ones
that have this context assigned.
Signed-off-by: Eliad Peller <el...@wizery.com>
---
net/mac80211/chan.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 5d6dae9..7f83451 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -388,22 +388,31 @@ ieee80211_find_chanctx(struct ieee80211_local *local,
return NULL;
}
-static bool ieee80211_is_radar_required(struct ieee80211_local *local)
+static bool ieee80211_is_radar_required(struct ieee80211_local *local,
+ struct ieee80211_chanctx *ctx)
{
+ struct ieee80211_chanctx_conf *conf = &ctx->conf;
struct ieee80211_sub_if_data *sdata;
+ bool required = false;
+ lockdep_assert_held(&local->chanctx_mtx);
lockdep_assert_held(&local->mtx);
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->radar_required) {
- rcu_read_unlock();
- return true;
- }
+ if (!ieee80211_sdata_running(sdata))
+ continue;
+ if (rcu_access_pointer(sdata->vif.chanctx_conf) != conf)
+ continue;
+ if (!sdata->radar_required)
+ continue;
+
+ required = true;
+ break;
}
rcu_read_unlock();
- return false;
+ return required;
}
static struct ieee80211_chanctx *
@@ -425,7 +434,7 @@ ieee80211_alloc_chanctx(struct ieee80211_local *local,
ctx->conf.rx_chains_static = 1;
ctx->conf.rx_chains_dynamic = 1;
ctx->mode = mode;
- ctx->conf.radar_enabled = ieee80211_is_radar_required(local);
+ ctx->conf.radar_enabled = ieee80211_is_radar_required(local, ctx);
ieee80211_recalc_chanctx_min_def(local, ctx);
return ctx;
@@ -570,7 +579,7 @@ static void ieee80211_recalc_radar_chanctx(struct
ieee80211_local *local,
/* for setting local->radar_detect_enabled */
lockdep_assert_held(&local->mtx);
- radar_enabled = ieee80211_is_radar_required(local);
+ radar_enabled = ieee80211_is_radar_required(local, chanctx);
if (radar_enabled == chanctx->conf.radar_enabled)
return;
--
1.8.5.1.109.g3d252a9
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