iwlwifi: fix HT operation in 2.4 GHz band
When we cleaned up the driver to properly tell mac80211 about HT rates ("iwlwifi: use iwl_hwrate_get_mac80211_idx where appropriate"), we broke internal rate indexing in 2.4 GHz band. Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com> Tested-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -883,6 +883,12 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
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mac_index &= RATE_MCS_CODE_MSK; /* Remove # of streams */
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if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE))
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mac_index++;
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/*
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* mac80211 HT index is always zero-indexed; we need to move
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* HT OFDM rates after CCK rates in 2.4 GHz band
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*/
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if (priv->band == IEEE80211_BAND_2GHZ)
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mac_index += IWL_FIRST_OFDM_RATE;
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}
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if ((mac_index < 0) ||
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