wifi: nl80211: don't allow DFS channels for NAN

NAN cannot use DFS channels.
Mark DFS channels as unusable if the chandef is to be used for NAN.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260108102921.c2a5a0a14b9f.Idca29fb8a235df980e63b733a298fd1f2bdf2f48@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260219094725.3846371-3-miriam.rachel.korenblit@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index dfe319565280fa637c19317fd404fbe90695b83d..d9d4e043bb392e87947471543bfc65ce18ae6af0 100644 (file)
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -781,6 +781,7 @@ int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
        case NL80211_IFTYPE_AP:
        case NL80211_IFTYPE_P2P_GO:
        case NL80211_IFTYPE_MESH_POINT:
+       case NL80211_IFTYPE_NAN:
                width = cfg80211_chandef_get_width(chandef);
                if (width < 0)
                        return -EINVAL;
@@ -795,7 +796,6 @@ int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
        case NL80211_IFTYPE_MONITOR:
        case NL80211_IFTYPE_AP_VLAN:
        case NL80211_IFTYPE_P2P_DEVICE:
-       case NL80211_IFTYPE_NAN:
                break;
        case NL80211_IFTYPE_WDS:
        case NL80211_IFTYPE_UNSPECIFIED: