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authorMarco Porsch <marco.porsch@etit.tu-chemnitz.de>2012-11-24 00:23:18 +0400
committerJohannes Berg <johannes.berg@intel.com>2012-11-30 15:41:46 +0400
commit372039031c62886c8c5b57a7b0111446e9caefa8 (patch)
treefe819c03fffd7cac9d5b1f6c57e3343b74e71f2e /net/mac80211/mesh_sync.c
parentc04d61500d706b20361eef02e819b9bed8e92c01 (diff)
downloadlinux-372039031c62886c8c5b57a7b0111446e9caefa8.tar.xz
mac80211: fix for mesh sync to indicate TBTT adjustment
Currently the mesh sync code checks, whether peers indicate TBTT adjustment, but it never sets the corresponding flag itself. By setting ifmsh->tbtt_adjusting to true, it will set the corresponding field in the mesh configuration IE of own beacons. This indication will be set in the current beacon. The TBTT adjustment will be performed afterwards, affecting the next beacon. Thus, the first beacon with stable TBTT will not indicate adjustment anymore and peers will continue tracking the new offset. Signed-off-by: Marco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/mesh_sync.c')
-rw-r--r--net/mac80211/mesh_sync.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/mesh_sync.c b/net/mac80211/mesh_sync.c
index 0f40086cce18..aa8d1e437385 100644
--- a/net/mac80211/mesh_sync.c
+++ b/net/mac80211/mesh_sync.c
@@ -195,11 +195,15 @@ static void mesh_sync_offset_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
ifmsh->sync_offset_clockdrift_max);
set_bit(MESH_WORK_DRIFT_ADJUST,
&ifmsh->wrkq_flags);
+
+ ifmsh->adjusting_tbtt = true;
} else {
msync_dbg(sdata,
"TBTT : max clockdrift=%lld; too small to adjust\n",
(long long)ifmsh->sync_offset_clockdrift_max);
ifmsh->sync_offset_clockdrift_max = 0;
+
+ ifmsh->adjusting_tbtt = false;
}
spin_unlock_bh(&ifmsh->sync_offset_lock);
}