From: Johannes Berg <johannes.berg@xxxxxxxxx>
This allows identifying whether or not a channel is a PSC
(preferred scanning channel).
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
include/net/cfg80211.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index e2dbc9c02ef3..a38653358885 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5277,6 +5277,21 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq)
return ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(freq));
}
+/**
+ * cfg80211_channel_is_psc - Check if the channel is a 6 GHz PSC
+ * @chan: control channel to check
+ *
+ * The Preferred Scanning Channels (PSC) are defined in
+ * Draft IEEE P802.11ax/D5.0, 26.17.2.3.3
+ */
+static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan)
+{
+ if (chan->band != NL80211_BAND_6GHZ)
+ return false;
+
+ return ieee80211_frequency_to_channel(chan->center_freq) % 16 == 5;
+}
+
/**
* ieee80211_get_response_rate - get basic rate for a given rate
*
--
2.26.2
