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wl1271: Prevent ad-hoc and active scanning on 11a DFS frequencies

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The wl1271 does not support radar detection. Hence, prevent ad-hoc and
active scanning on frequencies requiring DFS.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Tested-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
This commit is contained in:
Juuso Oikarinen 2010-11-10 11:27:19 +01:00 committed by Luciano Coelho
parent 91433029e4
commit b7417d930a
1 changed files with 23 additions and 0 deletions
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23
drivers/net/wireless/wl12xx/main.c
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@ -335,6 +335,27 @@ static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
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;