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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>
This commit is contained in:
Johannes Berg 2014-01-29 15:34:11 +01:00 committed by Emmanuel Grumbach
parent 0eb8365305
commit 5c0950c377
1 changed files with 1 additions and 7 deletions
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8
drivers/net/wireless/iwlwifi/mvm/rx.c
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@ -129,22 +129,16 @@ static void iwl_mvm_calc_rssi(struct iwl_mvm *mvm,
struct ieee80211_rx_status *rx_status)
{
int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm;
int rssi_all_band_a, rssi_all_band_b;
u32 agc_a, agc_b, max_agc;
u32 agc_a, agc_b;
u32 val;
val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]);
agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS;
agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS;
max_agc = max_t(u32, agc_a, agc_b);
val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]);
rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS;
rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS;
rssi_all_band_a = (val & IWL_OFDM_RSSI_ALLBAND_A_MSK) >>
IWL_OFDM_RSSI_ALLBAND_A_POS;
rssi_all_band_b = (val & IWL_OFDM_RSSI_ALLBAND_B_MSK) >>
IWL_OFDM_RSSI_ALLBAND_B_POS;
/*
* dBm = rssi dB - agc dB - constant.