mac80211: simplify mesh frame queue mapping and QoS

We only need to set the skb queue twice:

1. by the netdev, on local TX.
2. when forwarding a mesh frame.

We only need to set the qos header twice:

1. by mac80211, on local TX.
2. when putting a frame on the mpath->frame_queue

We also don't need the RA in order to set the proper queue mapping since
all mesh STAs are QoS, indicate this and do it once when the frame is
received. Also fixes an issue where the QoS header and queue mapping was not
set for unicast forwarded frames.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 4 insertions, 7 deletions

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index b22b223ccde1..a7afb2d32def 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -1043,6 +1043,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
                         skb_to_free = skb_dequeue(&mpath->frame_queue);
 
                 info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+                ieee80211_set_qos_hdr(sdata, skb);
                 skb_queue_tail(&mpath->frame_queue, skb);
                 if (skb_to_free)
                         mesh_path_discard_frame(skb_to_free, sdata);
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 7f54c5042235..4fc23d1b9c3a 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -213,7 +213,6 @@ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
         struct ieee80211_hdr *hdr;
         struct sk_buff_head tmpq;
         unsigned long flags;
-        struct ieee80211_sub_if_data *sdata = mpath->sdata;
 
         rcu_assign_pointer(mpath->next_hop, sta);
 
@@ -224,8 +223,6 @@ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
         while ((skb = __skb_dequeue(&mpath->frame_queue)) != NULL) {
                 hdr = (struct ieee80211_hdr *) skb->data;
                 memcpy(hdr->addr1, sta->sta.addr, ETH_ALEN);
-                skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, skb));
-                ieee80211_set_qos_hdr(sdata, skb);
                 __skb_queue_tail(&tmpq, skb);
         }
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 04c1b05ba339..c8a7076f9bb8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1941,6 +1941,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
             compare_ether_addr(sdata->vif.addr, hdr->addr3) == 0)
                 return RX_CONTINUE;
 
+        skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, skb));
         mesh_hdr->ttl--;
 
         if (status->rx_flags & IEEE80211_RX_RA_MATCH) {
@@ -1965,12 +1966,10 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
                         memset(info, 0, sizeof(*info));
                         info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
                         info->control.vif = &rx->sdata->vif;
+                        info->control.jiffies = jiffies;
                         if (is_multicast_ether_addr(fwd_hdr->addr1)) {
                                 IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
                                                                 fwded_mcast);
-                                skb_set_queue_mapping(fwd_skb,
-                                        ieee80211_select_queue(sdata, fwd_skb));
-                                ieee80211_set_qos_hdr(sdata, fwd_skb);
                         } else {
                                 int err;
                                 /*
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index d4f789a4e4f1..43327115b490 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -83,7 +83,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
                 break;
 #ifdef CONFIG_MAC80211_MESH
         case NL80211_IFTYPE_MESH_POINT:
-                ra = skb->data;
+                qos = true;
                 break;
 #endif
         case NL80211_IFTYPE_STATION: