iwlwifi: mvm: flip AMSDU addresses only for 9000 family

Hardware bug was fixed in later generation.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

1 files changed, 15 insertions, 10 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 580de5851fc7..4a4ccfd11e5b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -831,6 +831,16 @@ out:
         rcu_read_unlock();
 }
 
+static void iwl_mvm_flip_address(u8 *addr)
+{
+        int i;
+        u8 mac_addr[ETH_ALEN];
+
+        for (i = 0; i < ETH_ALEN; i++)
+                mac_addr[i] = addr[ETH_ALEN - i - 1];
+        ether_addr_copy(addr, mac_addr);
+}
+
 void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
                         struct iwl_rx_cmd_buffer *rxb, int queue)
 {
@@ -985,21 +995,16 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
                  */
                 if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
                     !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) {
-                        int i;
                         u8 *qc = ieee80211_get_qos_ctl(hdr);
-                        u8 mac_addr[ETH_ALEN];
 
                         *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
 
-                        for (i = 0; i < ETH_ALEN; i++)
-                                mac_addr[i] = hdr->addr3[ETH_ALEN - i - 1];
-                        ether_addr_copy(hdr->addr3, mac_addr);
+                        if (mvm->trans->cfg->device_family ==
+                            IWL_DEVICE_FAMILY_9000) {
+                                iwl_mvm_flip_address(hdr->addr3);
 
-                        if (ieee80211_has_a4(hdr->frame_control)) {
-                                for (i = 0; i < ETH_ALEN; i++)
-                                        mac_addr[i] =
-                                                hdr->addr4[ETH_ALEN - i - 1];
-                                ether_addr_copy(hdr->addr4, mac_addr);
+                                if (ieee80211_has_a4(hdr->frame_control))
+                                        iwl_mvm_flip_address(hdr->addr4);
                         }
                 }
                 if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {