From: Johannes Berg Date: Mon, 29 Oct 2018 08:44:03 +0000 (+0100) Subject: iwlwifi: mvm: read IWL_RX_MPDU_PHY_SHORT_PREAMBLE only for CCK X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=486af86332c7f062e0fc63c604023f2bbe2c50d3;p=openwrt%2Fstaging%2Fblogic.git iwlwifi: mvm: read IWL_RX_MPDU_PHY_SHORT_PREAMBLE only for CCK Due to a general shortage of RX API bits, the firmware is going to reuse this bit on non-CCK frames to mean something else. Use it only on CCK frames to prepare for that change. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho --- diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index 07ddd7bc07ce..9342f61b702e 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -1408,7 +1408,8 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; } /* set the preamble flag if appropriate */ - if (phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE) + if (rate_n_flags & RATE_MCS_CCK_MSK && + phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE) rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE; if (likely(!(phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {