iwlwifi: fix valid chain reading from EEPROM

When read valid tx/rx chains from EEPROM, there is a bug to use the
tx chain value for both tx and rx, the result of this cause low
receive throughput on 1x2 devices becuase rx will only utilize single
chain instead of two chains

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
index 97906dd442e628ea733dec41f6aac79c26b7c8d1..14ceb4df72f63e3fa4f467a074c15ecda5849454 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
@@ -168,7 +168,7 @@ int iwl_eeprom_check_sku(struct iwl_priv *priv)
                /* not using .cfg overwrite */
                radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
                priv->cfg->valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
-               priv->cfg->valid_rx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
+               priv->cfg->valid_rx_ant = EEPROM_RF_CFG_RX_ANT_MSK(radio_cfg);
                if (!priv->cfg->valid_tx_ant || !priv->cfg->valid_rx_ant) {
                        IWL_ERR(priv, "Invalid chain (0X%x, 0X%x)\n",
                                priv->cfg->valid_tx_ant,