rxrpc: Split sendmsg from packet transmission code

Split the sendmsg code from the packet transmission code (mostly to be
found in output.c).

Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/net/rxrpc/misc.c b/net/rxrpc/misc.c
index bdc5e42..39e7cc3 100644
--- a/net/rxrpc/misc.c
+++ b/net/rxrpc/misc.c
@@ -64,6 +64,11 @@
  */
 unsigned int rxrpc_rx_jumbo_max = 4;
 
+/*
+ * Time till packet resend (in jiffies).
+ */
+unsigned int rxrpc_resend_timeout = 4 * HZ;
+
 const char *const rxrpc_pkts[] = {
 	"?00",
 	"DATA", "ACK", "BUSY", "ABORT", "ACKALL", "CHALL", "RESP", "DEBUG",