From: Felix Fietkau Date: Thu, 24 Mar 2011 18:46:18 +0000 (+0100) Subject: mac80211: fix suppressing probe responses in ad-hoc mode X-Git-Tag: firefly_0821_release~7613^2~967^2~16^2~572 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1ed76487ce115110171480deabd3cd4656f9803e;p=firefly-linux-kernel-4.4.55.git mac80211: fix suppressing probe responses in ad-hoc mode The commit "mac80211: reply to directed probes in IBSS" changed ad-hoc specific code to respond to unicast probe requests, even if drv_tx_last_beacon returns false, however due to confusion over the meaning of the IEEE80211_RX_RA_MATCH flag, it also unconditionally enabled responding to multicast probe requests. Fix this by explicitly checking for a multicast destination address instead. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 3e81af1fce58..14883966374e 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -661,7 +661,6 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, struct sk_buff *req) { - struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(req); struct ieee80211_mgmt *mgmt = (void *)req->data; struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; @@ -685,7 +684,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, mgmt->bssid, tx_last_beacon); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ - if (!tx_last_beacon && !(rx_status->rx_flags & IEEE80211_RX_RA_MATCH)) + if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da)) return; if (memcmp(mgmt->bssid, ifibss->bssid, ETH_ALEN) != 0 &&