cfg80211: make wdev_list accessible to drivers

There's no harm in having drivers read the list, since they can
use RCU protection or RTNL locking; allow this to not require
each and every driver to also implement its own bookkeeping.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5f6e98ad21a2..63921672bed0 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3189,6 +3189,9 @@ struct wiphy_vendor_command {
  * @vht_capa_mod_mask:  Specify what VHT capabilities can be over-ridden.
  *      If null, then none can be over-ridden.
  *
+ * @wdev_list: the list of associated (virtual) interfaces; this list must
+ *      not be modified by the driver, but can be read with RTNL/RCU protection.
+ *
  * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
  *      supports for ACL.
  *
@@ -3328,6 +3331,8 @@ struct wiphy {
         const struct ieee80211_ht_cap *ht_capa_mod_mask;
         const struct ieee80211_vht_cap *vht_capa_mod_mask;
 
+        struct list_head wdev_list;
+
         /* the network namespace this phy lives in currently */
         possible_net_t _net;