iwlwifi: do not call ieee80211_frequency_to_channel

A few cases in iwlwifi driver function ieee80211_frequency_to_channel()
is called to get channel number from center frequency. This is not needed
since the channel number is already saved in hw_value field of struct
ieee80211_channel in function iwlcore_init_geos(). So replace those function
calls with hw_value field of struct ieee80211_channel.

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index d6da356608fa..9415b71fa12d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -1470,7 +1470,7 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
 
         cmd.band = band;
         cmd.expect_beacon = 0;
-        ch = ieee80211_frequency_to_channel(ch_switch->channel->center_freq);
+        ch = ch_switch->channel->hw_value;
         cmd.channel = cpu_to_le16(ch);
         cmd.rxon_flags = priv->staging_rxon.flags;
         cmd.rxon_filter_flags = priv->staging_rxon.filter_flags;