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authorJohannes Berg <johannes.berg@intel.com>2012-06-19 17:19:44 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-08-20 13:58:23 +0200
commit6d71117a279aa30574a8af6c7348570c292285c2 (patch)
tree89334a1d7bf17383524318179c6aee11d52f55d7 /net/mac80211/iface.c
parentmac80211: support P2P Device abstraction (diff)
downloadlinux-6d71117a279aa30574a8af6c7348570c292285c2.tar.xz
linux-6d71117a279aa30574a8af6c7348570c292285c2.zip
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>
Diffstat (limited to 'net/mac80211/iface.c')
-rw-r--r--net/mac80211/iface.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 152aeea14c85..59f8adc2aa5f 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1313,7 +1313,6 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
local->hw.wiphy->n_addresses <= 1)
return;
-
mutex_lock(&local->iflist_mtx);
switch (type) {
@@ -1331,6 +1330,19 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
}
/* 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 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
break;
}
+ out_unlock:
mutex_unlock(&local->iflist_mtx);
}