iwlwifi: mvm: mark MIC stripped MPDUs

When RADA is active, the hardware decrypts the packets and strips off
the MIC as it is useless after decryption. Indicate that to mac80211.

Cc: stable@vger.kernel.org # 4.13+
[this is needed for the 9000-series HW to work properly]
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index bf8409d..3b8d443 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -255,6 +255,8 @@ static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
                        return -1;
 
                stats->flag |= RX_FLAG_DECRYPTED;
+               if (pkt_flags & FH_RSCSR_RADA_EN)
+                       stats->flag |= RX_FLAG_MIC_STRIPPED;
                *crypt_len = IEEE80211_CCMP_HDR_LEN;
                return 0;
        case IWL_RX_MPDU_STATUS_SEC_TKIP: