[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/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 162eab6a4478..a5867879b615 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2107,7 +2107,8 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
                 if (!(conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC)))
                         goto drop;
 
-                memcpy(skb_put(conn->rx_skb, skb->len), skb->data, skb->len);
+                skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
+                              skb->len);
                 conn->rx_len = len - skb->len;
         } else {
                 BT_DBG("Cont: frag len %d (expecting %d)", skb->len, conn->rx_len);
@@ -2128,7 +2129,8 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
                         goto drop;
                 }
 
-                memcpy(skb_put(conn->rx_skb, skb->len), skb->data, skb->len);
+                skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
+                              skb->len);
                 conn->rx_len -= skb->len;
 
                 if (!conn->rx_len) {