nl80211: advertise device AP SME

Add the ability to advertise that the device
contains the AP SME and what features it can
support. There are currently no features in
the bitmap -- probe response offload will be
advertised by a few patches Arik is working
on now (who took over from Guy Eilam) and a
device with AP SME will typically implement
and require response offload.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 220f3bd176f8..ccdfed897651 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -492,6 +492,10 @@ int wiphy_register(struct wiphy *wiphy)
                     !(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
                 return -EINVAL;
 
+        if (WARN_ON(wiphy->ap_sme_capa &&
+                    !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME)))
+                return -EINVAL;
+
         if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
                 return -EINVAL;
 
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9910c3cb9a85..2094c8468d78 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1007,6 +1007,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         if (nl80211_put_iface_combinations(&dev->wiphy, msg))
                 goto nla_put_failure;
 
+        if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
+                NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
+                            dev->wiphy.ap_sme_capa);
+
         return genlmsg_end(msg, hdr);
 
  nla_put_failure: