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-rw-r--r--net/mac80211/ibss.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 7a944ca1c840..a96ce9dfc6b5 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -29,6 +29,7 @@
#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
+#define IEEE80211_IBSS_MERGE_DELAY 0x400000
#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
@@ -336,6 +337,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
jiffies);
#endif
+ /* give slow hardware some time to do the TSF sync */
+ if (rx_timestamp < IEEE80211_IBSS_MERGE_DELAY)
+ goto put_bss;
+
if (beacon_timestamp > rx_timestamp) {
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: beacon TSF higher than "