1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index 16f2a37c733d..2b364ba6b62e 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -203,6 +203,11 @@ static int desc_list_init(void)
                         goto init_error;
                 }
                 skb_reserve(new_skb, NET_IP_ALIGN);
+                /* Invidate the data cache of skb->data range when it is write back
+                 * cache. It will prevent overwritting the new data from DMA
+                 */
+                blackfin_dcache_invalidate_range((unsigned long)new_skb->head,
+                                         (unsigned long)new_skb->end);
                 r->skb = new_skb;
 
                 /*
@@ -1011,19 +1016,17 @@ static void bfin_mac_rx(struct net_device *dev)
         }
         /* reserve 2 bytes for RXDWA padding */
         skb_reserve(new_skb, NET_IP_ALIGN);
-        current_rx_ptr->skb = new_skb;
-        current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2;
-
         /* Invidate the data cache of skb->data range when it is write back
          * cache. It will prevent overwritting the new data from DMA
          */
         blackfin_dcache_invalidate_range((unsigned long)new_skb->head,
                                          (unsigned long)new_skb->end);
 
+        current_rx_ptr->skb = new_skb;
+        current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2;
+
         len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN);
         skb_put(skb, len);
-        blackfin_dcache_invalidate_range((unsigned long)skb->head,
-                                         (unsigned long)skb->tail);
 
         skb->protocol = eth_type_trans(skb, dev);