cfg80211: allow restricting supported dfs regions
At the moment, the ath9k/ath10k DFS module only supports detecting ETSI
radar patterns.
Add a bitmap in the interface combinations, indicating which DFS regions
are supported by the detector. If unset, support for all regions is
assumed.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/util.c b/net/wireless/util.c
index a756429..8c61d5c 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1274,10 +1274,20 @@
void *data),
void *data)
{
+ const struct ieee80211_regdomain *regdom;
+ enum nl80211_dfs_regions region = 0;
int i, j, iftype;
int num_interfaces = 0;
u32 used_iftypes = 0;
+ if (radar_detect) {
+ rcu_read_lock();
+ regdom = rcu_dereference(cfg80211_regdomain);
+ if (regdom)
+ region = regdom->dfs_region;
+ rcu_read_unlock();
+ }
+
for (iftype = 0; iftype < NUM_NL80211_IFTYPES; iftype++) {
num_interfaces += iftype_num[iftype];
if (iftype_num[iftype] > 0 &&
@@ -1318,6 +1328,10 @@
if (radar_detect != (c->radar_detect_widths & radar_detect))
goto cont;
+ if (radar_detect && c->radar_detect_regions &&
+ !(c->radar_detect_regions & BIT(region)))
+ goto cont;
+
/* Finally check that all iftypes that we're currently
* using are actually part of this combination. If they
* aren't then we can't use this combination and have