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mac80211: mesh: always use the latest target_sn 

When a path target responds to a path request, its response
always contains the most up-to-date information; accordingly,
it should use the latest target_sn, regardless of
net_traversal_jiffies().  Otherwise, only the first path
response is considered when constructing a path, as it will
have the highest target_sn of all replies during that period.

Signed-off-by: Bob Copeland <bob@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Bob Copeland 2014-04-15 10:43:08 -04:00 committed by Johannes Berg
parent a40a8c17b2
commit bc3ce0b0be
1 changed files with 2 additions and 1 deletions
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3
net/mac80211/mesh_hwmp.c
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@ -544,9 +544,10 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
if (time_after(jiffies, ifmsh->last_sn_update +
net_traversal_jiffies(sdata)) ||
time_before(jiffies, ifmsh->last_sn_update)) {
target_sn = ++ifmsh->sn;
++ifmsh->sn;
ifmsh->last_sn_update = jiffies;
}
target_sn = ifmsh->sn;
} else if (is_broadcast_ether_addr(target_addr) &&
(target_flags & IEEE80211_PREQ_TO_FLAG)) {
rcu_read_lock();