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-rw-r--r--net/wireless/util.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 77336c22fcf..f3e623df351 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -33,6 +33,29 @@ int ieee80211_frequency_to_channel(int freq)
}
EXPORT_SYMBOL(ieee80211_frequency_to_channel);
+struct ieee80211_channel *ieee80211_get_channel(struct wiphy *wiphy,
+ int freq)
+{
+ enum ieee80211_band band;
+ struct ieee80211_supported_band *sband;
+ int i;
+
+ for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+ sband = wiphy->bands[band];
+
+ if (!sband)
+ continue;
+
+ for (i = 0; i < sband->n_channels; i++) {
+ if (sband->channels[i].center_freq == freq)
+ return &sband->channels[i];
+ }
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(ieee80211_get_channel);
+
static void set_mandatory_flags_band(struct ieee80211_supported_band *sband,
enum ieee80211_band band)
{