A self-managed device will sometimes need to set its regdomain synchronously.
Notably it should be set before usermode has a chance to query it. Expose
a new API to accomplish this which requires the RTNL.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@xxxxxxxxx>
Reviewed-by: Ilan Peer <ilan.peer@xxxxxxxxx>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
include/net/cfg80211.h | 14 ++++++++++++++
net/wireless/reg.c | 17 +++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index bd672ea..cb0bba2 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3827,6 +3827,20 @@ int regulatory_set_wiphy_regd(struct wiphy *wiphy,
struct ieee80211_regdomain *rd);
/**
+ * regulatory_set_wiphy_regd_sync_rtnl - set regdom for self-managed drivers
+ * @wiphy: the wireless device we want to process the regulatory domain on
+ * @rd: the regulatory domain information to use for this wiphy
+ *
+ * This functions requires the RTNL to be held and applies the new regdomain
+ * synchronously to this wiphy. For more details see
+ * regulatory_set_wiphy_regd().
+ *
+ * Return: 0 on success. -EINVAL, -EPERM
+ */
+int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy *wiphy,
+ struct ieee80211_regdomain *rd);
+
+/**
* wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
* @wiphy: the wireless device we want to process the regulatory domain on
* @regd: the custom regulatory domain to use for this wiphy
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 9a5411c..9b5662f 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2928,6 +2928,23 @@ int regulatory_set_wiphy_regd(struct wiphy *wiphy,
}
EXPORT_SYMBOL(regulatory_set_wiphy_regd);
+int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy *wiphy,
+ struct ieee80211_regdomain *rd)
+{
+ int ret;
+
+ ASSERT_RTNL();
+
+ ret = regulatory_set_wiphy_regd(wiphy, rd);
+ if (ret)
+ return ret;
+
+ /* process the request immediately */
+ reg_process_self_managed_hints();
+ return 0;
+}
+EXPORT_SYMBOL(regulatory_set_wiphy_regd_sync_rtnl);
+
void wiphy_regulatory_register(struct wiphy *wiphy)
{
struct regulatory_request *lr;
--
2.1.0
--
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