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[PATCH AUTOSEL 4.19 32/37] mac80211: Do not send mesh HWMP PREQ if HWMP is disabled

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From: Nicolas Cavallari <nicolas.cavallari@xxxxxxxxxxxxxxxxxxxxxxx>

[ 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 <nicolas.cavallari@xxxxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200305140409.12204-1-cavallar@xxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 740dc9fa127cd..433d136282ded 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




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