cfg80211: remove channel_switch combination check

Driver is now responsible for veryfing if the
switch is possible.

Since this is inherently tricky driver may decide
to disconnect an interface later with
cfg80211_stop_iface().

This doesn't mean driver can accept everything. It
should do it's best to verify requests and reject
them as soon as possible.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 0 insertions, 11 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8f46b8ffbcf6..c10295138eb5 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6013,17 +6013,6 @@ skip_beacons:
                 params.radar_required = true;
         }
 
-        /* TODO: I left this here for now.  With channel switch, the
-         * verification is a bit more complicated, because we only do
-         * it later when the channel switch really happens.
-         */
-        err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
-                                           params.chandef.chan,
-                                           CHAN_MODE_SHARED,
-                                           radar_detect_width);
-        if (err)
-                return err;
-
         if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
                 params.block_tx = true;