2 files changed, 4 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 8c13479b17cd..c996963ab339 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -703,8 +703,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
                         rs->rs_phyerr = phyerr;
                 } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
                         rs->rs_status |= ATH9K_RXERR_DECRYPT;
-                else if ((ads.ds_rxstatus8 & AR_MichaelErr) &&
-                         rs->rs_keyix != ATH9K_RXKEYIX_INVALID)
+                else if (ads.ds_rxstatus8 & AR_MichaelErr)
                         rs->rs_status |= ATH9K_RXERR_MIC;
                 else if (ads.ds_rxstatus8 & AR_KeyMiss)
                         rs->rs_status |= ATH9K_RXERR_DECRYPT;
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 1a62e351ec77..14d479f8d8ac 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1049,9 +1049,11 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common,
         int hdrlen, padpos, padsize;
         u8 keyix;
         __le16 fc;
+        bool is_mc;
 
         /* see if any padding is done by the hw and remove it */
         hdr = (struct ieee80211_hdr *) skb->data;
+        is_mc = !!is_multicast_ether_addr(hdr->addr1);
         hdrlen = ieee80211_get_hdrlen_from_skb(skb);
         fc = hdr->frame_control;
         padpos = ath9k_cmn_padpos(hdr->frame_control);
@@ -1072,7 +1074,7 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common,
 
         keyix = rx_stats->rs_keyix;
 
-        if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error &&
+        if ((is_mc || !(keyix == ATH9K_RXKEYIX_INVALID)) && !decrypt_error &&
             ieee80211_has_protected(fc)) {
                 rxs->flag |= RX_FLAG_DECRYPTED;
         } else if (ieee80211_has_protected(fc)