diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
commit | 5f4457a4f62cc9d78e04c0eb12ff0540899aad89 (patch) | |
tree | 0b973d527ea6b2ae31e08da0746b4965a3c5a6d8 /net/wireless/reg.c | |
parent | 9b94b3a19b13e094c10f65f24bc358f6ffe4eacd (diff) | |
parent | b87297fb405ef13cac375f202d114323b076a56d (diff) |
Merge branch 'linus' into x86/cpu
Diffstat (limited to 'net/wireless/reg.c')
-rw-r--r-- | net/wireless/reg.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 6327e1617ac..487cb627ddb 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -907,6 +907,7 @@ 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); } @@ -1133,7 +1134,8 @@ 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; @@ -1142,6 +1144,12 @@ 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); @@ -1176,6 +1184,8 @@ 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]; @@ -1214,10 +1224,13 @@ 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); @@ -1423,7 +1436,7 @@ 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; @@ -1538,6 +1551,13 @@ static int regulatory_hint_core(const char *alpha2) queue_regulatory_request(request); + /* + * This ensures last_request is populated once modules + * come swinging in and calling regulatory hints and + * wiphy_apply_custom_regulatory(). + */ + flush_scheduled_work(); + return 0; } @@ -2095,11 +2115,12 @@ int set_regdom(const struct ieee80211_regdomain *rd) /* Caller must hold cfg80211_mutex */ void reg_device_remove(struct wiphy *wiphy) { - struct wiphy *request_wiphy; + struct wiphy *request_wiphy = NULL; assert_cfg80211_lock(); - request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx); + if (last_request) + request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx); kfree(wiphy->regd); if (!last_request || !request_wiphy) |