[PATCH] Fix regression in mesh forwarding path.

[PATCH] Fix regression in mesh forwarding path.

[javier]

From: Javier Cardona <javier@cozybit.com>

The removal of the master netdev broke the mesh forwarding path.  This patch
fixes it by using the new internal 'pending' queue.

As a result of this change, mesh forwarding no longer does the inefficient
802.11 -> 802.3 -> 802.11 conversion that was done before.

Signed-off-by: Javier Cardona <javier@cozybit.com>
---
 net/mac80211/mesh_hwmp.c    |    3 ++-
 net/mac80211/mesh_pathtbl.c |    7 +++++--
 net/mac80211/rx.c           |   17 +++++++++++++++--
 net/mac80211/tx.c           |    3 ---
 4 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index f49ef28..c31fe79 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		mesh_path_add(dst_addr, sdata);
 		mpath = mesh_path_lookup(dst_addr, sdata);
 		if (!mpath) {
-			dev_kfree_skb(skb);
 			sdata->u.mesh.mshstats.dropped_frames_no_route++;
 			err = -ENOSPC;
 			goto endlookup;
@@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
 				ETH_ALEN);
 	} else {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
 			/* Start discovery only if it is not running yet */
 			mesh_queue_preq(mpath, PREQ_Q_F_START);
@@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 			skb_unlink(skb_to_free, &mpath->frame_queue);
 		}
 
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		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 3c72557..ac7d823 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "wme.h"
 #include "mesh.h"
 
 /* There will be initially 2^INIT_PATHS_SIZE_ORDER buckets */
@@ -481,8 +482,10 @@ void mesh_path_tx_pending(struct mesh_path *mpath)
 	struct sk_buff *skb;
 
 	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
-			(mpath->flags & MESH_PATH_ACTIVE))
-		dev_queue_xmit(skb);
+			(mpath->flags & MESH_PATH_ACTIVE)) {
+		ieee80211_select_queue(mpath->sdata->local, skb);
+		ieee80211_add_pending_skb(mpath->sdata->local, skb);
+	}
 }
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 91747be..e3b58a4 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1485,10 +1485,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	unsigned int hdrlen;
 	struct sk_buff *skb = rx->skb, *fwd_skb;
 	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
+	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!ieee80211_is_data(hdr->frame_control))
 		return RX_CONTINUE;
@@ -1498,10 +1500,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 		return RX_DROP_MONITOR;
 
 	if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
-		struct ieee80211_sub_if_data *sdata;
 		struct mesh_path *mppath;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 		rcu_read_lock();
 		mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
 		if (!mppath) {
@@ -1546,6 +1546,19 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			memset(info, 0, sizeof(*info));
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			fwd_skb->iif = rx->dev->ifindex;
+			if (is_multicast_ether_addr(fwd_hdr->addr3))
+				memcpy(fwd_hdr->addr1, fwd_hdr->addr3,
+						ETH_ALEN);
+			else {
+				int err = mesh_nexthop_lookup(fwd_skb, sdata);
+				/* Failed to immediately resolve next hop:
+				 * fwded frame was dropped or will be added
+				 * later to the pending skb queue.  */
+				if (err)
+					return RX_DROP_MONITOR;
+			}
+			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+						     fwded_frames);
 			ieee80211_select_queue(local, fwd_skb);
 			ieee80211_add_pending_skb(local, fwd_skb);
 		}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 66d9a42..969a4b2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1399,9 +1399,6 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				dev_put(sdata->dev);
 				return;
 			}
-		if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
-			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
-						     fwded_frames);
 	} else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
 		int hdrlen;
 		u16 len_rthdr;
-- 
1.5.4.3

[PATCH] Fix regression in mesh forwarding path.

[javier]

From: Javier Cardona <javier@cozybit.com>

The removal of the master netdev broke the mesh forwarding path.  This patch
fixes it by using the new internal 'pending' queue.

As a result of this change, mesh forwarding no longer does the inefficient
802.11 -> 802.3 -> 802.11 conversion that was done before.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
---
 net/mac80211/mesh_hwmp.c    |    3 ++-
 net/mac80211/mesh_pathtbl.c |    7 +++++--
 net/mac80211/rx.c           |   17 +++++++++++++++--
 net/mac80211/tx.c           |    3 ---
 4 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index f49ef28..c31fe79 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		mesh_path_add(dst_addr, sdata);
 		mpath = mesh_path_lookup(dst_addr, sdata);
 		if (!mpath) {
-			dev_kfree_skb(skb);
 			sdata->u.mesh.mshstats.dropped_frames_no_route++;
 			err = -ENOSPC;
 			goto endlookup;
@@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
 				ETH_ALEN);
 	} else {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
 			/* Start discovery only if it is not running yet */
 			mesh_queue_preq(mpath, PREQ_Q_F_START);
@@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 			skb_unlink(skb_to_free, &mpath->frame_queue);
 		}
 
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		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 3c72557..ac7d823 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "wme.h"
 #include "mesh.h"
 
 /* There will be initially 2^INIT_PATHS_SIZE_ORDER buckets */
@@ -481,8 +482,10 @@ void mesh_path_tx_pending(struct mesh_path *mpath)
 	struct sk_buff *skb;
 
 	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
-			(mpath->flags & MESH_PATH_ACTIVE))
-		dev_queue_xmit(skb);
+			(mpath->flags & MESH_PATH_ACTIVE)) {
+		ieee80211_select_queue(mpath->sdata->local, skb);
+		ieee80211_add_pending_skb(mpath->sdata->local, skb);
+	}
 }
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 91747be..e3b58a4 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1485,10 +1485,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	unsigned int hdrlen;
 	struct sk_buff *skb = rx->skb, *fwd_skb;
 	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
+	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!ieee80211_is_data(hdr->frame_control))
 		return RX_CONTINUE;
@@ -1498,10 +1500,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 		return RX_DROP_MONITOR;
 
 	if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
-		struct ieee80211_sub_if_data *sdata;
 		struct mesh_path *mppath;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 		rcu_read_lock();
 		mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
 		if (!mppath) {
@@ -1546,6 +1546,19 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			memset(info, 0, sizeof(*info));
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			fwd_skb->iif = rx->dev->ifindex;
+			if (is_multicast_ether_addr(fwd_hdr->addr3))
+				memcpy(fwd_hdr->addr1, fwd_hdr->addr3,
+						ETH_ALEN);
+			else {
+				int err = mesh_nexthop_lookup(fwd_skb, sdata);
+				/* Failed to immediately resolve next hop:
+				 * fwded frame was dropped or will be added
+				 * later to the pending skb queue.  */
+				if (err)
+					return RX_DROP_MONITOR;
+			}
+			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+						     fwded_frames);
 			ieee80211_select_queue(local, fwd_skb);
 			ieee80211_add_pending_skb(local, fwd_skb);
 		}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 66d9a42..969a4b2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1399,9 +1399,6 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				dev_put(sdata->dev);
 				return;
 			}
-		if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
-			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
-						     fwded_frames);
 	} else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
 		int hdrlen;
 		u16 len_rthdr;
-- 
1.5.4.3

Re: [PATCH] Fix regression in mesh forwarding path.

[Johannes Berg]

[-- Attachment #1: Type: text/plain, Size: 871 bytes --]

On Mon, 2009-07-06 at 17:52 -0700, javier@cozybit.com wrote:
> From: Javier Cardona <javier@cozybit.com>
> 
> The removal of the master netdev broke the mesh forwarding path.  This patch
> fixes it by using the new internal 'pending' queue.

Sorry, never tested mesh recently.

> As a result of this change, mesh forwarding no longer does the inefficient
> 802.11 -> 802.3 -> 802.11 conversion that was done before.

That sounds good!

>  	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
> -			(mpath->flags & MESH_PATH_ACTIVE))
> -		dev_queue_xmit(skb);
> +			(mpath->flags & MESH_PATH_ACTIVE)) {
> +		ieee80211_select_queue(mpath->sdata->local, skb);
> +		ieee80211_add_pending_skb(mpath->sdata->local, skb);
> +	}

That does a lot of locking operations -- can you not select the queue
earlier, and use ieee80211_add_pending_skbs?

johannes

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[PATCH v2] Fix regression in mesh forwarding path.

[javier]

From: Javier Cardona <javier@cozybit.com>

The removal of the master netdev broke the mesh forwarding path.  This patch
fixes it by using the new internal 'pending' queue.

As a result of this change, mesh forwarding no longer does the inefficient
802.11 -> 802.3 -> 802.11 conversion that was done before.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
---
 net/mac80211/mesh_hwmp.c    |    3 ++-
 net/mac80211/mesh_pathtbl.c |    3 ++-
 net/mac80211/rx.c           |   17 +++++++++++++++--
 net/mac80211/tx.c           |    3 ---
 4 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index f49ef28..c31fe79 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		mesh_path_add(dst_addr, sdata);
 		mpath = mesh_path_lookup(dst_addr, sdata);
 		if (!mpath) {
-			dev_kfree_skb(skb);
 			sdata->u.mesh.mshstats.dropped_frames_no_route++;
 			err = -ENOSPC;
 			goto endlookup;
@@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
 				ETH_ALEN);
 	} else {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
 			/* Start discovery only if it is not running yet */
 			mesh_queue_preq(mpath, PREQ_Q_F_START);
@@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 			skb_unlink(skb_to_free, &mpath->frame_queue);
 		}
 
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		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 3c72557..e716e7d 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "wme.h"
 #include "mesh.h"
 
 /* There will be initially 2^INIT_PATHS_SIZE_ORDER buckets */
@@ -482,7 +483,7 @@ void mesh_path_tx_pending(struct mesh_path *mpath)
 
 	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
 			(mpath->flags & MESH_PATH_ACTIVE))
-		dev_queue_xmit(skb);
+		ieee80211_add_pending_skb(mpath->sdata->local, skb);
 }
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 91747be..1a22636 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1485,10 +1485,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	unsigned int hdrlen;
 	struct sk_buff *skb = rx->skb, *fwd_skb;
 	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
+	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!ieee80211_is_data(hdr->frame_control))
 		return RX_CONTINUE;
@@ -1498,10 +1500,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 		return RX_DROP_MONITOR;
 
 	if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
-		struct ieee80211_sub_if_data *sdata;
 		struct mesh_path *mppath;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 		rcu_read_lock();
 		mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
 		if (!mppath) {
@@ -1547,6 +1547,19 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			fwd_skb->iif = rx->dev->ifindex;
 			ieee80211_select_queue(local, fwd_skb);
+			if (is_multicast_ether_addr(fwd_hdr->addr3))
+				memcpy(fwd_hdr->addr1, fwd_hdr->addr3,
+						ETH_ALEN);
+			else {
+				int err = mesh_nexthop_lookup(fwd_skb, sdata);
+				/* Failed to immediately resolve next hop:
+				 * fwded frame was dropped or will be added
+				 * later to the pending skb queue.  */
+				if (err)
+					return RX_DROP_MONITOR;
+			}
+			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+						     fwded_frames);
 			ieee80211_add_pending_skb(local, fwd_skb);
 		}
 	}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 66d9a42..969a4b2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1399,9 +1399,6 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				dev_put(sdata->dev);
 				return;
 			}
-		if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
-			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
-						     fwded_frames);
 	} else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
 		int hdrlen;
 		u16 len_rthdr;
-- 
1.5.4.3

Re: [PATCH] Fix regression in mesh forwarding path.

[Javier Cardona]

On Mon, Jul 6, 2009 at 6:06 PM, Johannes Berg<johannes@sipsolutions.net> wrote:
> That does a lot of locking operations -- can you not select the queue
> earlier, and use ieee80211_add_pending_skbs?

Indeed.  Just submitted v2 of the patch.

Thanks!

Javier


-- 
Javier Cardona
cozybit Inc.
http://www.cozybit.com

Re: [PATCH v2] Fix regression in mesh forwarding path.

[Johannes Berg]

[-- Attachment #1: Type: text/plain, Size: 490 bytes --]

On Mon, 2009-07-06 at 18:25 -0700, javier@cozybit.com wrote:
> 
>         while ((skb = skb_dequeue(&mpath->frame_queue)) &&
>                         (mpath->flags & MESH_PATH_ACTIVE))
> -               dev_queue_xmit(skb);
> +               ieee80211_add_pending_skb(mpath->sdata->local, skb);
>  }

?

Hmm, now I'm confused, why not just do

if (mpath->flags & MESH_PATH_ACTIVE)
	ieee80211_add_pending_skbs(mpath->sdata->local,
				   &mpath->frame_queue);
?

johannes

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[PATCH v3] Fix regression in mesh forwarding path.

[javier]

From: Javier Cardona <javier@cozybit.com>

The removal of the master netdev broke the mesh forwarding path.  This patch
fixes it by using the new internal 'pending' queue.

As a result of this change, mesh forwarding no longer does the inefficient
802.11 -> 802.3 -> 802.11 conversion that was done before.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
---
 net/mac80211/mesh_hwmp.c    |    3 ++-
 net/mac80211/mesh_pathtbl.c |    9 ++++-----
 net/mac80211/rx.c           |   17 +++++++++++++++--
 net/mac80211/tx.c           |    3 ---
 4 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index f49ef28..c31fe79 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		mesh_path_add(dst_addr, sdata);
 		mpath = mesh_path_lookup(dst_addr, sdata);
 		if (!mpath) {
-			dev_kfree_skb(skb);
 			sdata->u.mesh.mshstats.dropped_frames_no_route++;
 			err = -ENOSPC;
 			goto endlookup;
@@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
 				ETH_ALEN);
 	} else {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
 			/* Start discovery only if it is not running yet */
 			mesh_queue_preq(mpath, PREQ_Q_F_START);
@@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 			skb_unlink(skb_to_free, &mpath->frame_queue);
 		}
 
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		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 3c72557..1e32948 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "wme.h"
 #include "mesh.h"
 
 /* There will be initially 2^INIT_PATHS_SIZE_ORDER buckets */
@@ -478,11 +479,9 @@ enddel:
  */
 void mesh_path_tx_pending(struct mesh_path *mpath)
 {
-	struct sk_buff *skb;
-
-	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
-			(mpath->flags & MESH_PATH_ACTIVE))
-		dev_queue_xmit(skb);
+	if (mpath->flags & MESH_PATH_ACTIVE)
+		ieee80211_add_pending_skbs(mpath->sdata->local,
+				&mpath->frame_queue); 
 }
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 91747be..1a22636 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1485,10 +1485,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	unsigned int hdrlen;
 	struct sk_buff *skb = rx->skb, *fwd_skb;
 	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
+	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!ieee80211_is_data(hdr->frame_control))
 		return RX_CONTINUE;
@@ -1498,10 +1500,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 		return RX_DROP_MONITOR;
 
 	if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
-		struct ieee80211_sub_if_data *sdata;
 		struct mesh_path *mppath;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 		rcu_read_lock();
 		mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
 		if (!mppath) {
@@ -1547,6 +1547,19 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			fwd_skb->iif = rx->dev->ifindex;
 			ieee80211_select_queue(local, fwd_skb);
+			if (is_multicast_ether_addr(fwd_hdr->addr3))
+				memcpy(fwd_hdr->addr1, fwd_hdr->addr3,
+						ETH_ALEN);
+			else {
+				int err = mesh_nexthop_lookup(fwd_skb, sdata);
+				/* Failed to immediately resolve next hop:
+				 * fwded frame was dropped or will be added
+				 * later to the pending skb queue.  */
+				if (err)
+					return RX_DROP_MONITOR;
+			}
+			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+						     fwded_frames);
 			ieee80211_add_pending_skb(local, fwd_skb);
 		}
 	}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 66d9a42..969a4b2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1399,9 +1399,6 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				dev_put(sdata->dev);
 				return;
 			}
-		if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
-			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
-						     fwded_frames);
 	} else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
 		int hdrlen;
 		u16 len_rthdr;
-- 
1.5.4.3

Re: [PATCH v2] Fix regression in mesh forwarding path.

[Javier Cardona]

Johannes,

On Mon, Jul 6, 2009 at 6:40 PM, Johannes Berg<johannes@sipsolutions.net> wrote:
> Hmm, now I'm confused, why not just do
>
> if (mpath->flags & MESH_PATH_ACTIVE)
>        ieee80211_add_pending_skbs(mpath->sdata->local,
>                                   &mpath->frame_queue);
> ?

Ah, yes, much better.  I had missed the trailing 's' in your previous
e-mail.  See v3 of the patch.

Thanks,

Javier

-- 
Javier Cardona
cozybit Inc.
http://www.cozybit.com

Re: [PATCH v3] Fix regression in mesh forwarding path.

[Johannes Berg]

[-- Attachment #1: Type: text/plain, Size: 2410 bytes --]

On Mon, 2009-07-06 at 19:54 -0700, javier@cozybit.com wrote:
> From: Javier Cardona <javier@cozybit.com>
> 
> The removal of the master netdev broke the mesh forwarding path.  This patch
> fixes it by using the new internal 'pending' queue.
> 
> As a result of this change, mesh forwarding no longer does the inefficient
> 802.11 -> 802.3 -> 802.11 conversion that was done before.
> 
> Signed-off-by: Javier Cardona <javier@cozybit.com>
> Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>

Reviewed-by: Johannes Berg <johannes@sipsolutions.net>

> ---
>  net/mac80211/mesh_hwmp.c    |    3 ++-
>  net/mac80211/mesh_pathtbl.c |    9 ++++-----
>  net/mac80211/rx.c           |   17 +++++++++++++++--
>  net/mac80211/tx.c           |    3 ---
>  4 files changed, 21 insertions(+), 11 deletions(-)
> 
> diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
> index f49ef28..c31fe79 100644
> --- a/net/mac80211/mesh_hwmp.c
> +++ b/net/mac80211/mesh_hwmp.c
> @@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
>  		mesh_path_add(dst_addr, sdata);
>  		mpath = mesh_path_lookup(dst_addr, sdata);
>  		if (!mpath) {
> -			dev_kfree_skb(skb);
>  			sdata->u.mesh.mshstats.dropped_frames_no_route++;
>  			err = -ENOSPC;
>  			goto endlookup;
> @@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
>  		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
>  				ETH_ALEN);
>  	} else {
> +		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
>  		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
>  			/* Start discovery only if it is not running yet */
>  			mesh_queue_preq(mpath, PREQ_Q_F_START);
> @@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
>  			skb_unlink(skb_to_free, &mpath->frame_queue);
>  		}
>  
> +		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
>  		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 3c72557..1e32948 100644
> --- a/net/mac80211/mesh_pathtbl.c
> +++ b/net/mac80211/mesh_pathtbl.c
> @@ -14,6 +14,7 @@
>  #include <linux/string.h>
>  #include <net/mac80211.h>
>  #include "ieee80211_i.h"
> +#include "wme.h"
>  #include "mesh.h"

You _could_ drop that extra include now, but it's not like it really
matters.

johannes

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 801 bytes --]

[PATCH v4] Fix regression in mesh forwarding path.

[Javier Cardona]

The removal of the master netdev broke the mesh forwarding path.  This patch
fixes it by using the new internal 'pending' queue.

As a result of this change, mesh forwarding no longer does the inefficient
802.11 -> 802.3 -> 802.11 conversion that was done before.

[Changes since v1]
Suggested by Johannes:
 - Select queue before adding to mpath queue
 - ieee80211_add_pending_skb -> ieee80211_add_pending_skbs
 - Remove unnecessary header wme.h

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
---
 net/mac80211/mesh_hwmp.c    |    3 ++-
 net/mac80211/mesh_pathtbl.c |    8 +++-----
 net/mac80211/rx.c           |   17 +++++++++++++++--
 net/mac80211/tx.c           |    3 ---
 4 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index f49ef28..c31fe79 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		mesh_path_add(dst_addr, sdata);
 		mpath = mesh_path_lookup(dst_addr, sdata);
 		if (!mpath) {
-			dev_kfree_skb(skb);
 			sdata->u.mesh.mshstats.dropped_frames_no_route++;
 			err = -ENOSPC;
 			goto endlookup;
@@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
 				ETH_ALEN);
 	} else {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
 			/* Start discovery only if it is not running yet */
 			mesh_queue_preq(mpath, PREQ_Q_F_START);
@@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 			skb_unlink(skb_to_free, &mpath->frame_queue);
 		}
 
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		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 3c72557..8445dda 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -478,11 +478,9 @@ enddel:
  */
 void mesh_path_tx_pending(struct mesh_path *mpath)
 {
-	struct sk_buff *skb;
-
-	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
-			(mpath->flags & MESH_PATH_ACTIVE))
-		dev_queue_xmit(skb);
+	if (mpath->flags & MESH_PATH_ACTIVE)
+		ieee80211_add_pending_skbs(mpath->sdata->local,
+				&mpath->frame_queue); 
 }
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 91747be..1a22636 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1485,10 +1485,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	unsigned int hdrlen;
 	struct sk_buff *skb = rx->skb, *fwd_skb;
 	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
+	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!ieee80211_is_data(hdr->frame_control))
 		return RX_CONTINUE;
@@ -1498,10 +1500,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 		return RX_DROP_MONITOR;
 
 	if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
-		struct ieee80211_sub_if_data *sdata;
 		struct mesh_path *mppath;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 		rcu_read_lock();
 		mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
 		if (!mppath) {
@@ -1547,6 +1547,19 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			fwd_skb->iif = rx->dev->ifindex;
 			ieee80211_select_queue(local, fwd_skb);
+			if (is_multicast_ether_addr(fwd_hdr->addr3))
+				memcpy(fwd_hdr->addr1, fwd_hdr->addr3,
+						ETH_ALEN);
+			else {
+				int err = mesh_nexthop_lookup(fwd_skb, sdata);
+				/* Failed to immediately resolve next hop:
+				 * fwded frame was dropped or will be added
+				 * later to the pending skb queue.  */
+				if (err)
+					return RX_DROP_MONITOR;
+			}
+			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+						     fwded_frames);
 			ieee80211_add_pending_skb(local, fwd_skb);
 		}
 	}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 66d9a42..969a4b2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1399,9 +1399,6 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				dev_put(sdata->dev);
 				return;
 			}
-		if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
-			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
-						     fwded_frames);
 	} else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
 		int hdrlen;
 		u16 len_rthdr;
-- 
1.5.4.3

Re: [PATCH v3] Fix regression in mesh forwarding path.

[John W. Linville]

On Mon, Jul 06, 2009 at 07:54:12PM -0700, javier@cozybit.com wrote:
> From: Javier Cardona <javier@cozybit.com>
> 
> The removal of the master netdev broke the mesh forwarding path.  This patch
> fixes it by using the new internal 'pending' queue.
> 
> As a result of this change, mesh forwarding no longer does the inefficient
> 802.11 -> 802.3 -> 802.11 conversion that was done before.

I'm sorry, but this doesn't seem to apply on top of the current tree.
Would you mind taking a look and respinning?

Thanks!

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.
			¡Viva Honduras Libre!

[PATCH v5] Fix regression in mesh forwarding path.

[javier]

From: Javier Cardona <javier@cozybit.com>

The removal of the master netdev broke the mesh forwarding path.  This patch
fixes it by using the new internal 'pending' queue.

As a result of this change, mesh forwarding no longer does the inefficient
802.11 -> 802.3 -> 802.11 conversion that was done before.

[Changes since v1]
Suggested by Johannes:
 - Select queue before adding to mpath queue
 - ieee80211_add_pending_skb -> ieee80211_add_pending_skbs
 - Remove unnecessary header wme.h

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
---
 net/mac80211/mesh_hwmp.c    |    3 ++-
 net/mac80211/mesh_pathtbl.c |    8 +++-----
 net/mac80211/rx.c           |   17 +++++++++++++++--
 net/mac80211/tx.c           |    3 ---
 4 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index f49ef28..c31fe79 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -784,7 +784,6 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		mesh_path_add(dst_addr, sdata);
 		mpath = mesh_path_lookup(dst_addr, sdata);
 		if (!mpath) {
-			dev_kfree_skb(skb);
 			sdata->u.mesh.mshstats.dropped_frames_no_route++;
 			err = -ENOSPC;
 			goto endlookup;
@@ -804,6 +803,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		memcpy(hdr->addr1, mpath->next_hop->sta.addr,
 				ETH_ALEN);
 	} else {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
 			/* Start discovery only if it is not running yet */
 			mesh_queue_preq(mpath, PREQ_Q_F_START);
@@ -815,6 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 			skb_unlink(skb_to_free, &mpath->frame_queue);
 		}
 
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		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 3c72557..ae98766 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -478,11 +478,9 @@ enddel:
  */
 void mesh_path_tx_pending(struct mesh_path *mpath)
 {
-	struct sk_buff *skb;
-
-	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
-			(mpath->flags & MESH_PATH_ACTIVE))
-		dev_queue_xmit(skb);
+	if (mpath->flags & MESH_PATH_ACTIVE)
+		ieee80211_add_pending_skbs(mpath->sdata->local,
+				&mpath->frame_queue);
 }
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9601b22..9d1dcaf 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1485,10 +1485,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	unsigned int hdrlen;
 	struct sk_buff *skb = rx->skb, *fwd_skb;
 	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
+	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!ieee80211_is_data(hdr->frame_control))
 		return RX_CONTINUE;
@@ -1498,10 +1500,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 		return RX_DROP_MONITOR;
 
 	if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
-		struct ieee80211_sub_if_data *sdata;
 		struct mesh_path *mppath;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 		rcu_read_lock();
 		mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
 		if (!mppath) {
@@ -1547,6 +1547,19 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			fwd_skb->iif = rx->dev->ifindex;
 			ieee80211_select_queue(local, fwd_skb);
+			if (is_multicast_ether_addr(fwd_hdr->addr3))
+				memcpy(fwd_hdr->addr1, fwd_hdr->addr3,
+						ETH_ALEN);
+			else {
+				int err = mesh_nexthop_lookup(fwd_skb, sdata);
+				/* Failed to immediately resolve next hop:
+				 * fwded frame was dropped or will be added
+				 * later to the pending skb queue.  */
+				if (err)
+					return RX_DROP_MONITOR;
+			}
+			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+						     fwded_frames);
 			ieee80211_add_pending_skb(local, fwd_skb);
 		}
 	}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 66d9a42..969a4b2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1399,9 +1399,6 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				dev_put(sdata->dev);
 				return;
 			}
-		if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
-			IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
-						     fwded_frames);
 	} else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
 		int hdrlen;
 		u16 len_rthdr;
-- 
1.5.4.3

Re: [PATCH v5] mac80211: Fix regression in mesh forwarding path.

[John W. Linville]

On Tue, Jul 07, 2009 at 10:55:03AM -0700, javier@cozybit.com wrote:
> From: Javier Cardona <javier@cozybit.com>
> 
> The removal of the master netdev broke the mesh forwarding path.  This patch
> fixes it by using the new internal 'pending' queue.
> 
> As a result of this change, mesh forwarding no longer does the inefficient
> 802.11 -> 802.3 -> 802.11 conversion that was done before.
> 
> [Changes since v1]
> Suggested by Johannes:
>  - Select queue before adding to mpath queue
>  - ieee80211_add_pending_skb -> ieee80211_add_pending_skbs
>  - Remove unnecessary header wme.h
> 
> Signed-off-by: Javier Cardona <javier@cozybit.com>
> Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
> Reviewed-by: Johannes Berg <johannes@sipsolutions.net>

What tree are you basing this on?

-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.
			¡Viva Honduras Libre!

Re: [PATCH v5] mac80211: Fix regression in mesh forwarding path.

[Andrey Yurovsky]

On Fri, Jul 10, 2009 at 11:51 AM, John W.
Linville<linville@tuxdriver.com> wrote:
> On Tue, Jul 07, 2009 at 10:55:03AM -0700, javier@cozybit.com wrote:
>> From: Javier Cardona <javier@cozybit.com>
>>
>> The removal of the master netdev broke the mesh forwarding path.  This patch
>> fixes it by using the new internal 'pending' queue.
>>
>> As a result of this change, mesh forwarding no longer does the inefficient
>> 802.11 -> 802.3 -> 802.11 conversion that was done before.
>>
>> [Changes since v1]
>> Suggested by Johannes:
>>  - Select queue before adding to mpath queue
>>  - ieee80211_add_pending_skb -> ieee80211_add_pending_skbs
>>  - Remove unnecessary header wme.h
>>
>> Signed-off-by: Javier Cardona <javier@cozybit.com>
>> Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
>> Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
>
> What tree are you basing this on?

wireless-testing, the latest (re-spun) version applied on top of
commit 5ac0fb5e5044cb578fb352dc65def1a46a2a21aa