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mac80211: eliminate IBSS warning in rate_lowest_index()

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In IBSS mode prior to join/creation of new IBSS it is possible that
a frame from unknown station is received and an ibss_add_sta() is
called. This will cause a warning in rate_lowest_index() since the
list of supported rates of our station is not initialized yet.

The fix is to add ibss stations with a rate we received that frame
at; this single-element set will be extended later based on beacon
data. Also there is no need to store stations from a foreign IBSS.

Signed-off-by: Vladimir Koutny <vlado@ksp.sk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Koutny
2008-06-13 16:50:44 +02:00
committed by John W. Linville
parent c644bce95f
commit 87291c0269
3 changed files with 20 additions and 7 deletions
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10
net/mac80211/rx.c
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@ -1823,8 +1823,13 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
if (!bssid)
return 0;
if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
(rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON)
(rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
if (!rx->sta)
rx->sta = ieee80211_ibss_add_sta(sdata->dev,
rx->skb, bssid, hdr->addr2,
BIT(rx->status->rate_idx));
return 1;
}
else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
if (!(rx->flags & IEEE80211_RX_IN_SCAN))
return 0;
@ -1837,7 +1842,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
rx->flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!rx->sta)
rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
bssid, hdr->addr2);
bssid, hdr->addr2,
BIT(rx->status->rate_idx));
break;
case IEEE80211_IF_TYPE_MESH_POINT:
if (!multicast &&