[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, 3 insertions, 1 deletions

diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index f5a17ad9d3d6..b33adc6a340b 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -317,7 +317,9 @@ void hdlcdrv_transmitter(struct net_device *dev, struct hdlcdrv_state *s)
                                 dev_kfree_skb_irq(skb);
                                 break;
                         }
-                        memcpy(s->hdlctx.buffer, skb->data+1, pkt_len);
+                        skb_copy_from_linear_data_offset(skb, 1,
+                                                         s->hdlctx.buffer,
+                                                         pkt_len);
                         dev_kfree_skb_irq(skb);
                         s->hdlctx.bp = s->hdlctx.buffer;
                         append_crc_ccitt(s->hdlctx.buffer, pkt_len);