mac80211: fix IBSS join by initializing last_scan_completed

commit c7d37a66e345df2fdf1aa7b2c9a6d3d53846ca5b upstream.

Without this fix, freshly rebooted Linux creates a new IBSS
instead of joining an existing one. Only when jiffies counter
overflows after 5 minutes the IBSS can be successfully joined.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
[edit commit message slightly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 9e20cb8..1c018d1 100644 (file)
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -914,6 +914,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 
        sdata->u.ibss.privacy = params->privacy;
        sdata->u.ibss.basic_rates = params->basic_rates;
+       sdata->u.ibss.last_scan_completed = jiffies;
        memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate,
               sizeof(params->mcast_rate));