cfg80211: add rfkill support

To be easier on drivers and users, have cfg80211 register an
rfkill structure that drivers can access. When soft-killed,
simply take down all interfaces; when hard-killed the driver
needs to notify us and we will take down the interfaces
after the fact. While rfkilled, interfaces cannot be set UP.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 9fbfb8536e75..d030c5315672 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -764,6 +764,8 @@ int cfg80211_wext_siwtxpower(struct net_device *dev,
 
         /* only change when not disabling */
         if (!data->txpower.disabled) {
+                rfkill_set_sw_state(rdev->rfkill, false);
+
                 if (data->txpower.fixed) {
                         /*
                          * wext doesn't support negative values, see
@@ -787,7 +789,9 @@ int cfg80211_wext_siwtxpower(struct net_device *dev,
                         }
                 }
         } else {
-                type = TX_POWER_OFF;
+                rfkill_set_sw_state(rdev->rfkill, true);
+                schedule_work(&rdev->rfkill_sync);
+                return 0;
         }
 
         return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
@@ -811,13 +815,12 @@ int cfg80211_wext_giwtxpower(struct net_device *dev,
                 return -EOPNOTSUPP;
 
         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
-        /* HACK!!! */
-        if (err && err != -ENETDOWN)
+        if (err)
                 return err;
 
         /* well... oh well */
         data->txpower.fixed = 1;
-        data->txpower.disabled = err == -ENETDOWN;
+        data->txpower.disabled = rfkill_blocked(rdev->rfkill);
         data->txpower.value = val;
         data->txpower.flags = IW_TXPOW_DBM;