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authorDavid S. Miller <davem@davemloft.net>2009-05-08 02:48:30 -0700
committerDavid S. Miller <davem@davemloft.net>2009-05-08 02:48:30 -0700
commit22f6dacdfcfdc792d068e9c41234808860498d04 (patch)
tree281a7d476f256ea3e2f800177ba685b169cc0540 /net/wireless/reg.c
parent928f308f556f4943e50c5064b546f47bce301f02 (diff)
parent9b05126baa146fc3f41360164141d4e1b3ea93c4 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: include/net/tcp.h
Diffstat (limited to 'net/wireless/reg.c')
-rw-r--r--net/wireless/reg.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f38cc39fa79e..139d13fdc94f 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -906,6 +906,7 @@ EXPORT_SYMBOL(freq_reg_info);
int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
const struct ieee80211_reg_rule **reg_rule)
{
+ assert_cfg80211_lock();
return freq_reg_info_regd(wiphy, center_freq,
bandwidth, reg_rule, NULL);
}
@@ -1134,7 +1135,8 @@ static bool reg_is_world_roaming(struct wiphy *wiphy)
if (is_world_regdom(cfg80211_regdomain->alpha2) ||
(wiphy->regd && is_world_regdom(wiphy->regd->alpha2)))
return true;
- if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+ if (last_request &&
+ last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
wiphy->custom_regulatory)
return true;
return false;
@@ -1143,6 +1145,12 @@ static bool reg_is_world_roaming(struct wiphy *wiphy)
/* Reap the advantages of previously found beacons */
static void reg_process_beacons(struct wiphy *wiphy)
{
+ /*
+ * Means we are just firing up cfg80211, so no beacons would
+ * have been processed yet.
+ */
+ if (!last_request)
+ return;
if (!reg_is_world_roaming(wiphy))
return;
wiphy_update_beacon_reg(wiphy);
@@ -1177,6 +1185,8 @@ static void handle_channel_custom(struct wiphy *wiphy,
struct ieee80211_supported_band *sband;
struct ieee80211_channel *chan;
+ assert_cfg80211_lock();
+
sband = wiphy->bands[band];
BUG_ON(chan_idx >= sband->n_channels);
chan = &sband->channels[chan_idx];
@@ -1215,10 +1225,13 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
const struct ieee80211_regdomain *regd)
{
enum ieee80211_band band;
+
+ mutex_lock(&cfg80211_mutex);
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (wiphy->bands[band])
handle_band_custom(wiphy, band, regd);
}
+ mutex_unlock(&cfg80211_mutex);
}
EXPORT_SYMBOL(wiphy_apply_custom_regulatory);
@@ -1424,7 +1437,7 @@ new_request:
return call_crda(last_request->alpha2);
}
-/* This currently only processes user and driver regulatory hints */
+/* This processes *all* regulatory hints */
static void reg_process_hint(struct regulatory_request *reg_request)
{
int r = 0;