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mac80211: restrict ath9k/ath10k DFS support to ETSI 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 40689
lede-17.01
Felix Fietkau 2014-05-03 21:14:45 +00:00
parent 09aa3ae9f6
commit 7bf399a87a
1 changed files with 82 additions and 0 deletions
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82
package/kernel/mac80211/patches/570-restrict_dfs_regions.patch Normal file
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@ -0,0 +1,82 @@
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4321,6 +4321,7 @@ static const struct ieee80211_iface_comb
BIT(NL80211_CHAN_WIDTH_20) |
BIT(NL80211_CHAN_WIDTH_40) |
BIT(NL80211_CHAN_WIDTH_80),
+ .radar_detect_regions = BIT(NL80211_DFS_ETSI),
#endif
},
};
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -688,6 +688,7 @@ static const struct ieee80211_iface_comb
.beacon_int_infra_match = true,
.radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
BIT(NL80211_CHAN_WIDTH_20),
+ .radar_detect_regions = BIT(NL80211_DFS_ETSI),
}
#endif
};
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2620,6 +2620,7 @@ struct ieee80211_iface_limit {
* between infrastructure and AP types must match. This is required
* only in special cases.
* @radar_detect_widths: bitmap of channel widths supported for radar detection
+ * @radar_detect_regions: bitmap of regions supported for radar detection
*
* With this structure the driver can describe which interface
* combinations it supports concurrently.
@@ -2677,6 +2678,7 @@ struct ieee80211_iface_combination {
u8 n_limits;
bool beacon_int_infra_match;
u8 radar_detect_widths;
+ u8 radar_detect_regions;
};
struct ieee80211_txrx_stypes {
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1259,6 +1259,7 @@ int cfg80211_can_use_iftype_chan(struct
enum cfg80211_chan_mode chanmode,
u8 radar_detect)
{
+ const struct ieee80211_regdomain *regdom;
struct wireless_dev *wdev_iter;
u32 used_iftypes = BIT(iftype);
int num[NUM_NL80211_IFTYPES];
@@ -1267,6 +1268,7 @@ int cfg80211_can_use_iftype_chan(struct
struct ieee80211_channel *ch;
enum cfg80211_chan_mode chmode;
int num_different_channels = 0;
+ enum nl80211_dfs_regions region = 0;
int total = 1;
int i, j;
@@ -1285,6 +1287,14 @@ int cfg80211_can_use_iftype_chan(struct
return 0;
}
+ if (radar_detect) {
+ rcu_read_lock();
+ regdom = rcu_dereference(cfg80211_regdomain);
+ if (regdom)
+ region = regdom->dfs_region;
+ rcu_read_unlock();
+ }
+
memset(num, 0, sizeof(num));
memset(used_channels, 0, sizeof(used_channels));
@@ -1392,6 +1402,10 @@ int cfg80211_can_use_iftype_chan(struct
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