1 files changed, 22 insertions, 6 deletions

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 0c8a1e8b7690..fb5448f7d55a 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -183,7 +183,14 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
                         return -EINVAL;
                 break;
         default:
-                return -EINVAL;
+                /*
+                 * We don't know anything about this algorithm,
+                 * allow using it -- but the driver must check
+                 * all parameters! We still check below whether
+                 * or not the driver supports this algorithm,
+                 * of course.
+                 */
+                break;
         }
 
         if (params->seq) {
@@ -221,7 +228,7 @@ const unsigned char bridge_tunnel_header[] __aligned(2) =
         { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
 EXPORT_SYMBOL(bridge_tunnel_header);
 
-unsigned int ieee80211_hdrlen(__le16 fc)
+unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc)
 {
         unsigned int hdrlen = 24;
 
@@ -319,7 +326,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
                 cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
         case cpu_to_le16(IEEE80211_FCTL_TODS):
                 if (unlikely(iftype != NL80211_IFTYPE_AP &&
-                             iftype != NL80211_IFTYPE_AP_VLAN))
+                             iftype != NL80211_IFTYPE_AP_VLAN &&
+                             iftype != NL80211_IFTYPE_P2P_GO))
                         return -1;
                 break;
         case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
@@ -347,7 +355,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
                 break;
         case cpu_to_le16(IEEE80211_FCTL_FROMDS):
                 if ((iftype != NL80211_IFTYPE_STATION &&
-                    iftype != NL80211_IFTYPE_MESH_POINT) ||
+                     iftype != NL80211_IFTYPE_P2P_CLIENT &&
+                     iftype != NL80211_IFTYPE_MESH_POINT) ||
                     (is_multicast_ether_addr(dst) &&
                      !compare_ether_addr(src, addr)))
                         return -1;
@@ -424,6 +433,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
         switch (iftype) {
         case NL80211_IFTYPE_AP:
         case NL80211_IFTYPE_AP_VLAN:
+        case NL80211_IFTYPE_P2P_GO:
                 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
                 /* DA BSSID SA */
                 memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -432,6 +442,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
                 hdrlen = 24;
                 break;
         case NL80211_IFTYPE_STATION:
+        case NL80211_IFTYPE_P2P_CLIENT:
                 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
                 /* BSSID SA DA */
                 memcpy(hdr.addr1, bssid, ETH_ALEN);
@@ -771,7 +782,9 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 
         /* if it's part of a bridge, reject changing type to station/ibss */
         if ((dev->priv_flags & IFF_BRIDGE_PORT) &&
-            (ntype == NL80211_IFTYPE_ADHOC || ntype == NL80211_IFTYPE_STATION))
+            (ntype == NL80211_IFTYPE_ADHOC ||
+             ntype == NL80211_IFTYPE_STATION ||
+             ntype == NL80211_IFTYPE_P2P_CLIENT))
                 return -EBUSY;
 
         if (ntype != otype) {
@@ -782,6 +795,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
                         cfg80211_leave_ibss(rdev, dev, false);
                         break;
                 case NL80211_IFTYPE_STATION:
+                case NL80211_IFTYPE_P2P_CLIENT:
                         cfg80211_disconnect(rdev, dev,
                                             WLAN_REASON_DEAUTH_LEAVING, true);
                         break;
@@ -810,9 +824,11 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
                         if (dev->ieee80211_ptr->use_4addr)
                                 break;
                         /* fall through */
+                case NL80211_IFTYPE_P2P_CLIENT:
                 case NL80211_IFTYPE_ADHOC:
                         dev->priv_flags |= IFF_DONT_BRIDGE;
                         break;
+                case NL80211_IFTYPE_P2P_GO:
                 case NL80211_IFTYPE_AP:
                 case NL80211_IFTYPE_AP_VLAN:
                 case NL80211_IFTYPE_WDS:
@@ -823,7 +839,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
                         /* monitor can't bridge anyway */
                         break;
                 case NL80211_IFTYPE_UNSPECIFIED:
-                case __NL80211_IFTYPE_AFTER_LAST:
+                case NUM_NL80211_IFTYPES:
                         /* not happening */
                         break;
                 }