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mac80211: Don't merge with the same BSSID

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It was not a good idea to do a TSF reset on strange IBSS merges to the same BSSID. For example it will break the TSF sync of ath9k completely and it is unnecessary as all hardware I have tested do a TSF sync to a higher value automatically and IBSS merges are only done to higher TSF values. It only need a TSF reset to accept a lower value, when the IBSS network is changed manually.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Alina Friedrichsen 2009-02-22 00:07:28 +01:00 committed by John W. Linville
parent 204b190cab
commit 34e8f08231
1 changed files with 4 additions and 0 deletions
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4
net/mac80211/ibss.c
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@ -291,6 +291,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.ssid_len))
goto put_bss;
/* same BSSID */
if (memcmp(bss->cbss.bssid, sdata->u.ibss.bssid, ETH_ALEN) == 0)
goto put_bss;
if (rx_status->flag & RX_FLAG_TSFT) {
/*
* For correct IBSS merging we need mactime; since mactime is