[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, 3 deletions

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index f67d97de97ff..879a2fff474e 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -828,8 +828,8 @@ static int b44_rx(struct b44 *bp, int budget)
                         skb_reserve(copy_skb, 2);
                         skb_put(copy_skb, len);
                         /* DMA sync done above, copy just the actual packet */
-                        memcpy(copy_skb->data, skb->data+bp->rx_offset, len);
-
+                        skb_copy_from_linear_data_offset(skb, bp->rx_offset,
+                                                         copy_skb->data, len);
                         skb = copy_skb;
                 }
                 skb->ip_summed = CHECKSUM_NONE;
@@ -1006,7 +1006,8 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         goto err_out;
                 }
 
-                memcpy(skb_put(bounce_skb, len), skb->data, skb->len);
+                skb_copy_from_linear_data(skb, skb_put(bounce_skb, len),
+                                          skb->len);
                 dev_kfree_skb_any(skb);
                 skb = bounce_skb;
         }