ath10k: remove htt rx amsdu clear retry bit hack

With commit 0cfcefef1 ("mac80211: support reporting A-MSDU subframes
individually") there's no need to have the hack to clear the retry bit in
ath10k_htt_rx_amsdu(), mac80211 can handle this properly now.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

3 files changed, 7 insertions, 17 deletions

diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 1a337e93b7e9..7fc7919ea5f5 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1182,6 +1182,7 @@ struct htt_rx_info {
                 u32 info2;
         } rate;
         bool fcs_err;
+        bool amsdu_more;
 };
 
 struct ath10k_htt {
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 90d4f74c28d7..0335218ad579 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -659,23 +659,6 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
         memcpy(hdr_buf, hdr, hdr_len);
         hdr = (struct ieee80211_hdr *)hdr_buf;
 
-        /* FIXME: Hopefully this is a temporary measure.
-         *
-         * Reporting individual A-MSDU subframes means each reported frame
-         * shares the same sequence number.
-         *
-         * mac80211 drops frames it recognizes as duplicates, i.e.
-         * retransmission flag is set and sequence number matches sequence
-         * number from a previous frame (as per IEEE 802.11-2012: 9.3.2.10
-         * "Duplicate detection and recovery")
-         *
-         * To avoid frames being dropped clear retransmission flag for all
-         * received A-MSDUs.
-         *
-         * Worst case: actual duplicate frames will be reported but this should
-         * still be handled gracefully by other OSI/ISO layers. */
-        hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_RETRY);
-
         first = skb;
         while (skb) {
                 void *decap_hdr;
@@ -746,6 +729,9 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
                 skb = skb->next;
                 info->skb->next = NULL;
 
+                if (skb)
+                        info->amsdu_more = true;
+
                 ath10k_process_rx(htt->ar, info);
         }
 
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index c511f919d541..df279a31e189 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -236,6 +236,9 @@ void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
         if (info->fcs_err)
                 status->flag |= RX_FLAG_FAILED_FCS_CRC;
 
+        if (info->amsdu_more)
+                status->flag |= RX_FLAG_AMSDU_MORE;
+
         status->signal = info->signal;
 
         spin_lock_bh(&ar->data_lock);