[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, 4 insertions, 4 deletions

diff --git a/net/tipc/port.c b/net/tipc/port.c
index 5f8217d4b452..bcd5da00737b 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -464,7 +464,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
         msg_set_size(rmsg, data_sz + hdr_sz);
         msg_set_nametype(rmsg, msg_nametype(msg));
         msg_set_nameinst(rmsg, msg_nameinst(msg));
-        memcpy(rbuf->data + hdr_sz, msg_data(msg), data_sz);
+        skb_copy_to_linear_data_offset(rbuf, hdr_sz, msg_data(msg), data_sz);
 
         /* send self-abort message when rejecting on a connected port */
         if (msg_connected(msg)) {
@@ -1419,7 +1419,7 @@ int tipc_send_buf(u32 ref, struct sk_buff *buf, unsigned int dsz)
                 return -ENOMEM;
 
         skb_push(buf, hsz);
-        memcpy(buf->data, (unchar *)msg, hsz);
+        skb_copy_to_linear_data(buf, msg, hsz);
         destnode = msg_destnode(msg);
         p_ptr->publ.congested = 1;
         if (!tipc_port_congested(p_ptr)) {
@@ -1555,7 +1555,7 @@ int tipc_forward_buf2name(u32 ref,
         if (skb_cow(buf, LONG_H_SIZE))
                 return -ENOMEM;
         skb_push(buf, LONG_H_SIZE);
-        memcpy(buf->data, (unchar *)msg, LONG_H_SIZE);
+        skb_copy_to_linear_data(buf, msg, LONG_H_SIZE);
         msg_dbg(buf_msg(buf),"PREP:");
         if (likely(destport || destnode)) {
                 p_ptr->sent++;
@@ -1679,7 +1679,7 @@ int tipc_forward_buf2port(u32 ref,
                 return -ENOMEM;
 
         skb_push(buf, DIR_MSG_H_SIZE);
-        memcpy(buf->data, (unchar *)msg, DIR_MSG_H_SIZE);
+        skb_copy_to_linear_data(buf, msg, DIR_MSG_H_SIZE);
         msg_dbg(msg, "buf2port: ");
         p_ptr->sent++;
         if (dest->node == tipc_own_addr)