diff options
Diffstat (limited to 'drivers/net/bfin_mac.c')
-rw-r--r-- | drivers/net/bfin_mac.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index f2368b71a720..0a17fb48c55c 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c | |||
@@ -651,6 +651,12 @@ static void bf537mac_rx(struct net_device *dev) | |||
651 | current_rx_ptr->skb = new_skb; | 651 | current_rx_ptr->skb = new_skb; |
652 | current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2; | 652 | current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2; |
653 | 653 | ||
654 | /* Invidate the data cache of skb->data range when it is write back | ||
655 | * cache. It will prevent overwritting the new data from DMA | ||
656 | */ | ||
657 | blackfin_dcache_invalidate_range((unsigned long)new_skb->head, | ||
658 | (unsigned long)new_skb->end); | ||
659 | |||
654 | len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN); | 660 | len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN); |
655 | skb_put(skb, len); | 661 | skb_put(skb, len); |
656 | blackfin_dcache_invalidate_range((unsigned long)skb->head, | 662 | blackfin_dcache_invalidate_range((unsigned long)skb->head, |