[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, 5 insertions, 2 deletions

diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index cd42bd54988c..e10e85e85c84 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -645,7 +645,8 @@ static void netiucv_unpack_skb(struct iucv_connection *conn,
                         privptr->stats.rx_dropped++;
                         return;
                 }
-                memcpy(skb_put(skb, pskb->len), pskb->data, pskb->len);
+                skb_copy_from_linear_data(pskb, skb_put(skb, pskb->len),
+                                          pskb->len);
                 skb_reset_mac_header(skb);
                 skb->dev = pskb->dev;
                 skb->protocol = pskb->protocol;
@@ -744,7 +745,9 @@ static void conn_action_txdone(fsm_instance *fi, int event, void *arg)
                 header.next = conn->tx_buff->len + skb->len + NETIUCV_HDRLEN;
                 memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header,
                        NETIUCV_HDRLEN);
-                memcpy(skb_put(conn->tx_buff, skb->len), skb->data, skb->len);
+                skb_copy_from_linear_data(skb,
+                                          skb_put(conn->tx_buff, skb->len),
+                                          skb->len);
                 txbytes += skb->len;
                 txpackets++;
                 stat_maxcq++;