[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}

To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index a5e0237a6537..b3a64ca98634 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -682,7 +682,7 @@ static int dmfe_start_xmit(struct sk_buff *skb, struct DEVICE *dev)
 
         /* transmit this packet */
         txptr = db->tx_insert_ptr;
-        memcpy(txptr->tx_buf_ptr, skb->data, skb->len);
+        skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, skb->len);
         txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
 
         /* Point to next transmit free descriptor */
@@ -989,7 +989,9 @@ static void dmfe_rx_packet(struct DEVICE *dev, struct dmfe_board_info * db)
                                                 skb = newskb;
                                                 /* size less than COPY_SIZE, allocate a rxlen SKB */
                                                 skb_reserve(skb, 2); /* 16byte align */
-                                                memcpy(skb_put(skb, rxlen), rxptr->rx_skb_ptr->data, rxlen);
+                                                skb_copy_from_linear_data(rxptr->rx_skb_ptr,
+                                                          skb_put(skb, rxlen),
+                                                                          rxlen);
                                                 dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
                                         } else
                                                 skb_put(skb, rxlen);