iwlwifi: mvm: create function to convert nl80211 band to phy band

Create the function and use it.
Signed-off-by: Tova Mussai <tova.mussai@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -3636,8 +3636,7 @@ static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
 
 	/* Set the channel info data */
 	iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
-			      (channel->band == NL80211_BAND_2GHZ) ?
-			       PHY_BAND_24 : PHY_BAND_5,
+			      iwl_mvm_phy_band_from_nl80211(channel->band),
 			      PHY_VHT_CHANNEL_MODE20,
 			      0);
 

drivers/net/wireless/intel/iwlwifi/mvm/mvm.h

@@ -2077,6 +2077,19 @@ void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
 			     struct dentry *dir);
 #endif
 
+static inline u8 iwl_mvm_phy_band_from_nl80211(enum nl80211_band band)
+{
+	switch (band) {
+	case NL80211_BAND_2GHZ:
+		return PHY_BAND_24;
+	case NL80211_BAND_5GHZ:
+		return PHY_BAND_5;
+	default:
+		WARN_ONCE(1, "Unsupported band (%u)\n", band);
+		return PHY_BAND_5;
+	}
+}
+
 /* Channel info utils */
 static inline bool iwl_mvm_has_ultra_hb_channel(struct iwl_mvm *mvm)
 {
@@ -2125,9 +2138,10 @@ iwl_mvm_set_chan_info_chandef(struct iwl_mvm *mvm,
 			      struct iwl_fw_channel_info *ci,
 			      struct cfg80211_chan_def *chandef)
 {
+	enum nl80211_band band = chandef->chan->band;
+
 	iwl_mvm_set_chan_info(mvm, ci, chandef->chan->hw_value,
-			      (chandef->chan->band == NL80211_BAND_2GHZ ?
-			       PHY_BAND_24 : PHY_BAND_5),
+			      iwl_mvm_phy_band_from_nl80211(band),
 			      iwl_mvm_get_channel_width(chandef),
 			      iwl_mvm_get_ctrl_pos(chandef));
 }

drivers/net/wireless/intel/iwlwifi/mvm/scan.c

@@ -79,9 +79,6 @@
 #define IWL_SCAN_NUM_OF_FRAGS		3
 #define IWL_SCAN_LAST_2_4_CHN		14
 
-#define IWL_SCAN_BAND_5_2		0
-#define IWL_SCAN_BAND_2_4		1
-
 /* adaptive dwell max budget time [TU] for full scan */
 #define IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300
 /* adaptive dwell max budget time [TU] for directed scan */
@@ -196,14 +193,6 @@ static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
 	return cpu_to_le16(rx_chain);
 }
 
-static __le32 iwl_mvm_scan_rxon_flags(enum nl80211_band band)
-{
-	if (band == NL80211_BAND_2GHZ)
-		return cpu_to_le32(PHY_BAND_24);
-	else
-		return cpu_to_le32(PHY_BAND_5);
-}
-
 static inline __le32
 iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum nl80211_band band,
 			  bool no_cck)
@@ -981,6 +970,7 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			 mvm->fw->ucode_capa.n_scan_channels);
 	u32 ssid_bitmap = 0;
 	int i;
+	u8 band;
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -1000,7 +990,8 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	cmd->scan_flags = cpu_to_le32(iwl_mvm_scan_lmac_flags(mvm, params,
 							      vif));
 
-	cmd->flags = iwl_mvm_scan_rxon_flags(params->channels[0]->band);
+	band = iwl_mvm_phy_band_from_nl80211(params->channels[0]->band);
+	cmd->flags = cpu_to_le32(band);
 	cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
 					MAC_FILTER_IN_BEACON);
 	iwl_mvm_scan_fill_tx_cmd(mvm, cmd->tx_cmd, params->no_cck);
@@ -1402,9 +1393,10 @@ iwl_mvm_umac_scan_cfg_channels(struct iwl_mvm *mvm,
 		channel_cfg[i].flags = cpu_to_le32(ssid_bitmap);
 		channel_cfg[i].v1.channel_num = channels[i]->hw_value;
 		if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
+			enum nl80211_band band = channels[i]->band;
+
 			channel_cfg[i].v2.band =
-				channels[i]->hw_value <= IWL_SCAN_LAST_2_4_CHN ?
-					IWL_SCAN_BAND_2_4 : IWL_SCAN_BAND_5_2;
+				iwl_mvm_phy_band_from_nl80211(band);
 			channel_cfg[i].v2.iter_count = 1;
 			channel_cfg[i].v2.iter_interval = 0;
 		} else {