[PATCH 2/2] iwlwifi: mvm: mark MIC stripped MPDUs

[AceLan Kao]

From: Sara Sharon <sara.sharon at intel.com>

BugLink: http://bugs.launchpad.net/bugs/1736639

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 at vger.kernel.org # 4.13+
[this is needed for the 9000-series HW to work properly]
Signed-off-by: Sara Sharon <sara.sharon at intel.com>
Signed-off-by: Luca Coelho <luciano.coelho at intel.com>
(cherry picked from commit bf19037074e770aad74b3b90f37b8b98db3f3748)
Signed-off-by: AceLan Kao <acelan.kao at canonical.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 3c93bbf..909201c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -254,6 +254,8 @@ 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:
-- 
2.7.4