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authorLuciano Coelho <luciano.coelho@intel.com>2014-10-28 13:33:05 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-21 09:23:02 -0800
commit2097903674ccf4d573f90ec3e31ac1ae659ddac4 (patch)
tree92011c76a7488656b5c374c9e2c4fddf68c5d42d /net
parentb0255bc3277ddd8f1e3334ca1cda5067e8612490 (diff)
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.c3
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,