From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
---
:100644 100644 27f9561... be6fb62... M include/net/cfg80211.h
:100644 100644 6cba001... 2fd0e97... M net/wireless/util.c
include/net/cfg80211.h | 7 +++++++
net/wireless/util.c | 24 ++++++++++++++++++++++++
2 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 27f9561..be6fb62 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2388,6 +2388,13 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq)
}
/**
+ * ieee80211_get_channel_idx - get channel index from wiphy for specified freq
+ * @wiphy: the struct wiphy to get the channel for
+ * @freq: the center frequency of the channel
+ */
+extern int ieee80211_get_channel_idx(struct wiphy *wiphy, int freq);
+
+/**
* ieee80211_get_response_rate - get basic rate for a given rate
*
* @sband: the band to look for rates in
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 6cba001..2fd0e97 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -88,6 +88,30 @@ struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
}
EXPORT_SYMBOL(__ieee80211_get_channel);
+int ieee80211_get_channel_idx(struct wiphy *wiphy, int freq)
+{
+ enum ieee80211_band band;
+ struct ieee80211_supported_band *sband;
+ int i;
+ int rv = 0;
+
+ 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 rv;
+ rv++;
+ }
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(ieee80211_get_channel_idx);
+
static void set_mandatory_flags_band(struct ieee80211_supported_band *sband,
enum ieee80211_band band)
{
--
1.7.3.4
--
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