SUNRPC: Create a helper to tell whether a transport is bound

Hide the contents and format of xprt->addr by eliminating direct uses
of the xprt->addr.sin_port field.  This change is required to support
alternate RPC host address formats (eg IPv6).

Test-plan:
Destructive testing (unplugging the network temporarily).  Repeated runs of
Connectathon locking suite with UDP and TCP.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index e8c2bc4977f3..e239ef985ef7 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -534,7 +534,7 @@ void xprt_connect(struct rpc_task *task)
         dprintk("RPC: %4d xprt_connect xprt %p %s connected\n", task->tk_pid,
                         xprt, (xprt_connected(xprt) ? "is" : "is not"));
 
-        if (!xprt->addr.sin_port) {
+        if (!xprt_bound(xprt)) {
                 task->tk_status = -EIO;
                 return;
         }