iwlagn: merge duplicated code into single place

Multiple places have similar code to construct calib header. Merge into
single inline function.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c

@@ -111,10 +111,8 @@ static void iwlagn_gain_computation(struct iwl_priv *priv,
 
 		memset(&cmd, 0, sizeof(cmd));
 
-		cmd.hdr.op_code = priv->_agn.phy_calib_chain_noise_gain_cmd;
-		cmd.hdr.first_group = 0;
-		cmd.hdr.groups_num = 1;
-		cmd.hdr.data_valid = 1;
+		iwl_set_calib_hdr(&cmd.hdr,
+			priv->_agn.phy_calib_chain_noise_gain_cmd);
 		cmd.delta_gain_1 = data->delta_gain_code[1];
 		cmd.delta_gain_2 = data->delta_gain_code[2];
 		iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD,
@@ -144,10 +142,8 @@ static void iwlagn_chain_noise_reset(struct iwl_priv *priv)
 		data->beacon_count = 0;
 
 		memset(&cmd, 0, sizeof(cmd));
-		cmd.hdr.op_code = priv->_agn.phy_calib_chain_noise_reset_cmd;
-		cmd.hdr.first_group = 0;
-		cmd.hdr.groups_num = 1;
-		cmd.hdr.data_valid = 1;
+		iwl_set_calib_hdr(&cmd.hdr,
+			priv->_agn.phy_calib_chain_noise_reset_cmd);
 		ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
 					sizeof(cmd), &cmd);
 		if (ret)

drivers/net/wireless/iwlwifi/iwl-agn-ucode.c

@@ -183,10 +183,7 @@ static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
 	__le16 *xtal_calib =
 		(__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
 
-	cmd.hdr.op_code = IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD;
-	cmd.hdr.first_group = 0;
-	cmd.hdr.groups_num = 1;
-	cmd.hdr.data_valid = 1;
+	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
 	cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 	cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 	return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
@@ -198,14 +195,13 @@ static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
 	struct iwl_calib_temperature_offset_cmd cmd;
 	__le16 *offset_calib =
 		(__le16 *)iwl_eeprom_query_addr(priv, EEPROM_TEMPERATURE);
-	cmd.hdr.op_code = IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD;
-	cmd.hdr.first_group = 0;
-	cmd.hdr.groups_num = 1;
-	cmd.hdr.data_valid = 1;
+
+	memset(&cmd, 0, sizeof(cmd));
+	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 	cmd.radio_sensor_offset = le16_to_cpu(offset_calib[1]);
 	if (!(cmd.radio_sensor_offset))
 		cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
-	cmd.reserved = 0;
+
 	IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 			cmd.radio_sensor_offset);
 	return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],

drivers/net/wireless/iwlwifi/iwl-agn.h

@@ -129,6 +129,14 @@ static inline void iwl_synchronize_irq(struct iwl_priv *priv)
 	tasklet_kill(&priv->irq_tasklet);
 }
 
+static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd)
+{
+	hdr->op_code = cmd;
+	hdr->first_group = 0;
+	hdr->groups_num = 1;
+	hdr->data_valid = 1;
+}
+
 int iwl_prepare_card_hw(struct iwl_priv *priv);
 
 int iwlagn_start_device(struct iwl_priv *priv);