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iwlegacy: fix BSSID setting 

Current commit 0775f9f90c
"mac80211: remove spurious BSSID change flag" exposed bug on iwlegacy,
that we do not set BSSID address correctly and then device was not able
to receive frames after successful associate.

On the way fix scan canceling comment. Apparently ->post_associate()
do cancel scan itself, but scan cancel on BSS_CHANGED_BSSID is needed.
I'm not sure why, but when I removed it, I had frequent auth failures:

 wlan4: send auth to 54:e6:fc:98:63:fe (try 1/3)
 wlan4: send auth to 54:e6:fc:98:63:fe (try 2/3)
 wlan4: send auth to 54:e6:fc:98:63:fe (try 3/3)
 wlan4: authentication with 54:e6:fc:98:63:fe timed out

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka 2012-03-15 11:42:49 +01:00 committed by John W. Linville
parent 2ee0a07028
commit e92109be7a
1 changed files with 6 additions and 10 deletions
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16
drivers/net/wireless/iwlegacy/common.c
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@ -5288,9 +5288,9 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
D_MAC80211("BSSID %pM\n", bss_conf->bssid);
/*
* If there is currently a HW scan going on in the
* background then we need to cancel it else the RXON
* below/in post_associate will fail.
* If there is currently a HW scan going on in the background,
* then we need to cancel it, otherwise sometimes we are not
* able to authenticate (FIXME: why ?)
*/
if (il_scan_cancel_timeout(il, 100)) {
D_MAC80211("leave - scan abort failed\n");
@ -5299,14 +5299,10 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
}
/* mac80211 only sets assoc when in STATION mode */
if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) {
memcpy(il->staging.bssid_addr, bss_conf->bssid,
ETH_ALEN);
memcpy(il->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
/* currently needed in a few places */
memcpy(il->bssid, bss_conf->bssid, ETH_ALEN);
} else
il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
/* FIXME: currently needed in a few places */
memcpy(il->bssid, bss_conf->bssid, ETH_ALEN);
}
/*