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| author | Luciano Coelho <luciano.coelho@intel.com> | 2014-10-28 13:33:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-21 09:23:02 -0800 |
| commit | 2097903674ccf4d573f90ec3e31ac1ae659ddac4 (patch) | |
| tree | 92011c76a7488656b5c374c9e2c4fddf68c5d42d /net | |
| parent | b0255bc3277ddd8f1e3334ca1cda5067e8612490 (diff) | |
| download | lwn-2097903674ccf4d573f90ec3e31ac1ae659ddac4.tar.gz lwn-2097903674ccf4d573f90ec3e31ac1ae659ddac4.zip | |
mac80211: schedule the actual switch of the station before CSA count 0
commit ff1e417c7c239b7abfe70aa90460a77eaafc7f83 upstream.
Due to the time it takes to process the beacon that started the CSA
process, we may be late for the switch if we try to reach exactly
beacon 0. To avoid that, use count - 1 when calculating the switch time.
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/mlme.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index d870aa09ae4f..c9535a976b56 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1086,7 +1086,8 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work); else mod_timer(&ifmgd->chswitch_timer, - TU_TO_EXP_TIME(csa_ie.count * cbss->beacon_interval)); + TU_TO_EXP_TIME((csa_ie.count - 1) * + cbss->beacon_interval)); } static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, |