cfg80211: remove radar requirements check from cfg80211_can_use_iftype_chan()
We don't have to double check whether the parameters passed to
cfg80211_can_use_iftype_chan() are correct. We should just make sure
they *are* when we call this function.
Remove the radar_detect argument check in
cfg80211_can_use_iftype_chan() to simplify the code.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
[keep braces around a long comment + single statement]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 780b454..57b3ce7 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1269,7 +1269,6 @@
enum cfg80211_chan_mode chmode;
int num_different_channels = 0;
int total = 1;
- bool radar_required = false;
int i, j;
ASSERT_RTNL();
@@ -1277,35 +1276,7 @@
if (WARN_ON(hweight32(radar_detect) > 1))
return -EINVAL;
- switch (iftype) {
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_AP:
- case NL80211_IFTYPE_AP_VLAN:
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_P2P_GO:
- case NL80211_IFTYPE_WDS:
- /* if the interface could potentially choose a DFS channel,
- * then mark DFS as required.
- */
- if (!chan) {
- if (chanmode != CHAN_MODE_UNDEFINED && radar_detect)
- radar_required = true;
- break;
- }
- radar_required = !!(chan->flags & IEEE80211_CHAN_RADAR);
- break;
- case NL80211_IFTYPE_P2P_CLIENT:
- case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_P2P_DEVICE:
- case NL80211_IFTYPE_MONITOR:
- break;
- case NUM_NL80211_IFTYPES:
- case NL80211_IFTYPE_UNSPECIFIED:
- default:
- return -EINVAL;
- }
-
- if (radar_required && !radar_detect)
+ if (WARN_ON(iftype >= NUM_NL80211_IFTYPES))
return -EINVAL;
/* Always allow software iftypes */