[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}

To clearly state the intent of copying to 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@ghostprotocols.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 20b5cb10136..6df673a058c 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -94,7 +94,8 @@ static void emulate_large_send_offload(struct sk_buff *skb)
                 skb_set_mac_header(nskb, -ETH_HLEN);
                 skb_reset_network_header(nskb);
                 iph = ip_hdr(nskb);
-                memcpy(nskb->data, skb_network_header(skb), doffset);
+                skb_copy_to_linear_data(nskb, skb_network_header(skb),
+                                        doffset);
                 if (skb_copy_bits(skb,
                                   doffset + offset,
                                   nskb->data + doffset,