From b7417d930afdc214daa24299912d984e7f4f390a Mon Sep 17 00:00:00 2001 From: Juuso Oikarinen Date: Wed, 10 Nov 2010 11:27:19 +0100 Subject: [PATCH] wl1271: Prevent ad-hoc and active scanning on 11a DFS frequencies The wl1271 does not support radar detection. Hence, prevent ad-hoc and active scanning on frequencies requiring DFS. Signed-off-by: Juuso Oikarinen Tested-by: Tuomas Katila Reviewed-by: Luciano Coelho Signed-off-by: Luciano Coelho --- drivers/net/wireless/wl12xx/main.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index c005230..0724328 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -335,6 +335,27 @@ out: return NOTIFY_OK; } +static int wl1271_reg_notify(struct wiphy *wiphy, + struct regulatory_request *request) { + struct ieee80211_supported_band *band; + struct ieee80211_channel *ch; + int i; + + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + for (i = 0; i < band->n_channels; i++) { + ch = &band->channels[i]; + if (ch->flags & IEEE80211_CHAN_DISABLED) + continue; + + if (ch->flags & IEEE80211_CHAN_RADAR) + ch->flags |= IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_PASSIVE_SCAN; + + } + + return 0; +} + static void wl1271_conf_init(struct wl1271 *wl) { @@ -2590,6 +2611,8 @@ int wl1271_init_ieee80211(struct wl1271 *wl) wl->hw->queues = 4; wl->hw->max_rates = 1; + wl->hw->wiphy->reg_notifier = wl1271_reg_notify; + SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl)); return 0; -- 2.7.4