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authorJohannes Berg <johannes.berg@intel.com>2014-01-29 09:34:11 -0500
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-02-03 15:23:41 -0500
commit5c0950c377c1fed65fc26062b4111e33490c823e (patch)
treee7346f005f4da075a8d875c533c1a9ecd1e109e5 /drivers/net/wireless/iwlwifi/mvm/rx.c
parent0eb8365305d43bdfde9e064dec4d82c743fa5c38 (diff)
iwlwifi: mvm: remove unneeded calculations
In iwl_mvm_calc_rssi() some values are calculated but then never used, remove the calculations. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rx.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/rx.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index a85b60f7e67e..ef727df84da7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -129,22 +129,16 @@ static void iwl_mvm_calc_rssi(struct iwl_mvm *mvm,
129 struct ieee80211_rx_status *rx_status) 129 struct ieee80211_rx_status *rx_status)
130{ 130{
131 int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm; 131 int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm;
132 int rssi_all_band_a, rssi_all_band_b; 132 u32 agc_a, agc_b;
133 u32 agc_a, agc_b, max_agc;
134 u32 val; 133 u32 val;
135 134
136 val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]); 135 val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]);
137 agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS; 136 agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS;
138 agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS; 137 agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS;
139 max_agc = max_t(u32, agc_a, agc_b);
140 138
141 val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]); 139 val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]);
142 rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS; 140 rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS;
143 rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS; 141 rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS;
144 rssi_all_band_a = (val & IWL_OFDM_RSSI_ALLBAND_A_MSK) >>
145 IWL_OFDM_RSSI_ALLBAND_A_POS;
146 rssi_all_band_b = (val & IWL_OFDM_RSSI_ALLBAND_B_MSK) >>
147 IWL_OFDM_RSSI_ALLBAND_B_POS;
148 142
149 /* 143 /*
150 * dBm = rssi dB - agc dB - constant. 144 * dBm = rssi dB - agc dB - constant.