Subject: [PATCH AUTOSEL 4.14 24/28] mac80211: Do not send mesh HWMP PREQ if HWMP is disabled

From: Sasha Levin <[email-masked]>
Date: Wed, 18 Mar 2020 16:55:51 -0400

From: Nicolas Cavallari <[email-masked]>

[ Upstream commit ba32679cac50c38fdf488296f96b1f3175532b8e ]

When trying to transmit to an unknown destination, the mesh code would
unconditionally transmit a HWMP PREQ even if HWMP is not the current
path selection algorithm.

Signed-off-by: Nicolas Cavallari <[email-masked]>
Link: https://lore.kernel.org/r/[email-masked]
Signed-off-by: Johannes Berg <[email-masked]>
Signed-off-by: Sasha Levin <[email-masked]>
---
 net/mac80211/mesh_hwmp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 994dde6e5f9d9..986e9b6b961d2 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -1137,7 +1137,8 @@ int mesh_nexthop_resolve(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	if (!(mpath->flags & MESH_PATH_RESOLVING))
+	if (!(mpath->flags & MESH_PATH_RESOLVING) &&
+	    mesh_path_sel_is_hwmp(sdata))
 		mesh_queue_preq(mpath, PREQ_Q_F_START);
 
 	if (skb_queue_len(&mpath->frame_queue) >= MESH_FRAME_QUEUE_LEN)
-- 
2.20.1