mac80211: add IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF
Some devices like the current iwlwifi implementation
require that the P2P interface address match the P2P
Device address (only one P2P interface is supported.)
Add the HW flag IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF
that allows drivers to request that P2P Interfaces
added while a P2P Device is active get the same MAC
address by default.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 152aeea..59f8adc 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1313,7 +1313,6 @@
local->hw.wiphy->n_addresses <= 1)
return;
-
mutex_lock(&local->iflist_mtx);
switch (type) {
@@ -1331,6 +1330,19 @@
}
/* keep default if no AP interface present */
break;
+ case NL80211_IFTYPE_P2P_CLIENT:
+ case NL80211_IFTYPE_P2P_GO:
+ if (local->hw.flags & IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF) {
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE)
+ continue;
+ if (!ieee80211_sdata_running(sdata))
+ continue;
+ memcpy(perm_addr, sdata->vif.addr, ETH_ALEN);
+ goto out_unlock;
+ }
+ }
+ /* otherwise fall through */
default:
/* assign a new address if possible -- try n_addresses first */
for (i = 0; i < local->hw.wiphy->n_addresses; i++) {
@@ -1405,6 +1417,7 @@
break;
}
+ out_unlock:
mutex_unlock(&local->iflist_mtx);
}