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authorJohannes Berg <johannes.berg@intel.com>2016-03-31 20:02:07 +0300
committerJohannes Berg <johannes.berg@intel.com>2016-04-06 14:18:16 +0300
commitb8da6b6a99b4b0d8d464b621ba7dcbcb08172b7d (patch)
tree706ea11b5ad9ba42d8ea9d3e83dee162e8f1443f /net/mac80211/ibss.c
parent2df8bfd7240117b91241a01e3f50f2e83827ccab (diff)
downloadlinux-b8da6b6a99b4b0d8d464b621ba7dcbcb08172b7d.tar.xz
mac80211: add separate last_ack variable
Instead of touching the rx_stats.last_rx from the status path, introduce and use a status_stats.last_ack variable. This will make rx_stats.last_rx indicate when the last frame was received, making it available for real "last_rx" and statistics gathering; statistics, when done per-CPU, will need to figure out which place was updated last for those items where the "last" value is exposed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/ibss.c')
-rw-r--r--net/mac80211/ibss.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index b3407dbe4b7d..c6d4b75eb60b 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -668,10 +668,11 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
rcu_read_lock();
list_for_each_entry_rcu(sta, &local->sta_list, list) {
+ unsigned long last_active = ieee80211_sta_last_active(sta);
+
if (sta->sdata == sdata &&
- time_after(sta->rx_stats.last_rx +
- IEEE80211_IBSS_MERGE_INTERVAL,
- jiffies)) {
+ time_is_after_jiffies(last_active +
+ IEEE80211_IBSS_MERGE_INTERVAL)) {
active++;
break;
}
@@ -1255,11 +1256,13 @@ static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata)
mutex_lock(&local->sta_mtx);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
+ unsigned long last_active = ieee80211_sta_last_active(sta);
+
if (sdata != sta->sdata)
continue;
- if (time_after(jiffies, sta->rx_stats.last_rx + exp_time) ||
- (time_after(jiffies, sta->rx_stats.last_rx + exp_rsn) &&
+ if (time_is_before_jiffies(last_active + exp_time) ||
+ (time_is_before_jiffies(last_active + exp_rsn) &&
sta->sta_state != IEEE80211_STA_AUTHORIZED)) {
sta_dbg(sta->sdata, "expiring inactive %sSTA %pM\n",
sta->sta_state != IEEE80211_STA_AUTHORIZED ?