When we receive information about a BSS we check at some point
whether or not we think we're allowed to use the channel it is
on, but we do that fairly late. I don't think we should do it
that late, so do it earlier to avoid doing IBSS/mesh stuff on
that channel and then getting confused because it's disabled.
Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
---
net/mac80211/mlme.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
--- everything.orig/net/mac80211/mlme.c 2008-09-06 21:43:57.000000000 +0200
+++ everything/net/mac80211/mlme.c 2008-09-06 21:53:11.000000000 +0200
@@ -2430,7 +2430,15 @@ static void ieee80211_rx_bss_info(struct
DECLARE_MAC_BUF(mac);
DECLARE_MAC_BUF(mac2);
- beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+ if (elems->ds_params && elems->ds_params_len == 1)
+ freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
+ else
+ freq = rx_status->freq;
+
+ channel = ieee80211_get_channel(local->hw.wiphy, freq);
+
+ if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+ return;
if (ieee80211_vif_is_mesh(&sdata->vif) && elems->mesh_id &&
elems->mesh_config && mesh_matches_local(elems, sdata)) {
@@ -2473,16 +2481,6 @@ static void ieee80211_rx_bss_info(struct
rcu_read_unlock();
}
- if (elems->ds_params && elems->ds_params_len == 1)
- freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
- else
- freq = rx_status->freq;
-
- channel = ieee80211_get_channel(local->hw.wiphy, freq);
-
- if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
- return;
-
#ifdef CONFIG_MAC80211_MESH
if (elems->mesh_config)
bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id,
@@ -2551,6 +2549,8 @@ static void ieee80211_rx_bss_info(struct
bss->band = band;
+ beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+
bss->timestamp = beacon_timestamp;
bss->last_update = jiffies;
bss->signal = rx_status->signal;
--
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