tipc: introduce new tipc_sk_respond() function
Currently, we use the code sequence
if (msg_reverse())
tipc_link_xmit_skb()
at numerous locations in socket.c. The preparation of arguments
for these calls, as well as the sequence itself, makes the code
unecessarily complex.
In this commit, we introduce a new function, tipc_sk_respond(),
that performs this call combination. We also replace some, but not
yet all, of these explicit call sequences with calls to the new
function. Notably, we let the function tipc_sk_proto_rcv() use
the new function to directly send out PROBE_REPLY messages,
instead of deferring this to the calling tipc_sk_rcv() function,
as we do now.
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 4339aab..b6cc58e 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -469,7 +469,7 @@
* Consumes buffer at failure
* Returns true if success, otherwise false
*/
-bool tipc_msg_reverse(u32 own_node, struct sk_buff **skb, u32 *dnode, int err)
+bool tipc_msg_reverse(u32 own_node, struct sk_buff **skb, int err)
{
struct sk_buff *_skb = *skb;
struct tipc_msg *hdr = buf_msg(_skb);
@@ -508,7 +508,6 @@
msg_set_prevnode(hdr, own_node);
msg_set_orignode(hdr, own_node);
msg_set_size(hdr, msg_hdr_sz(hdr) + dlen);
- *dnode = msg_destnode(hdr);
skb_trim(_skb, msg_size(hdr));
skb_orphan(_skb);
return true;