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Subject: [PATCH v1 04/11] xprtrdma: Refactor rpcrdma_ep_connect() and
 rpcrdma_ep_disconnect()
From:   Chuck Lever <chuck.lever@oracle.com>
To:     linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org
Date:   Fri, 21 Feb 2020 17:00:28 -0500
Message-ID: <20200221220028.2072.48067.stgit@manet.1015granger.net>
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Clean up: Simplify the synopses of functions in the connect and
disconnect paths in preparation for combining the rpcrdma_ia and
struct rpcrdma_ep structures.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 net/sunrpc/xprtrdma/transport.c |    6 +++---
 net/sunrpc/xprtrdma/verbs.c     |   30 +++++++++++++++---------------
 net/sunrpc/xprtrdma/xprt_rdma.h |    4 ++--
 3 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 8934c24a5701..6349e6c98b57 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -240,7 +240,7 @@
 	struct rpc_xprt *xprt = &r_xprt->rx_xprt;
 	int rc;
 
-	rc = rpcrdma_ep_connect(&r_xprt->rx_ep, &r_xprt->rx_ia);
+	rc = rpcrdma_xprt_connect(r_xprt);
 	xprt_clear_connecting(xprt);
 	if (r_xprt->rx_ep.rep_connected > 0) {
 		xprt->stat.connect_count++;
@@ -284,7 +284,7 @@
 
 	cancel_delayed_work_sync(&r_xprt->rx_connect_worker);
 
-	rpcrdma_ep_disconnect(&r_xprt->rx_ep, &r_xprt->rx_ia);
+	rpcrdma_xprt_disconnect(r_xprt);
 	rpcrdma_buffer_destroy(&r_xprt->rx_buf);
 	rpcrdma_ia_close(&r_xprt->rx_ia);
 
@@ -409,7 +409,7 @@ void xprt_rdma_close(struct rpc_xprt *xprt)
 
 	if (ep->rep_connected == -ENODEV)
 		return;
-	rpcrdma_ep_disconnect(ep, ia);
+	rpcrdma_xprt_disconnect(r_xprt);
 
 out:
 	xprt->reestablish_timeout = 0;
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 8fd6682d2646..f361213a8157 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -610,15 +610,17 @@ static int rpcrdma_ep_reconnect(struct rpcrdma_xprt *r_xprt)
 	return rc;
 }
 
-/*
- * Connect unconnected endpoint.
+/**
+ * rpcrdma_xprt_connect - Connect an unconnected transport
+ * @r_xprt: controlling transport instance
+ *
+ * Returns 0 on success or a negative errno.
  */
-int
-rpcrdma_ep_connect(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia)
+int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt)
 {
-	struct rpcrdma_xprt *r_xprt = container_of(ia, struct rpcrdma_xprt,
-						   rx_ia);
 	struct rpc_xprt *xprt = &r_xprt->rx_xprt;
+	struct rpcrdma_ep *ep = &r_xprt->rx_ep;
+	struct rpcrdma_ia *ia = &r_xprt->rx_ia;
 	int rc;
 
 retry:
@@ -634,7 +636,7 @@ static int rpcrdma_ep_reconnect(struct rpcrdma_xprt *r_xprt)
 			goto out_noupdate;
 		break;
 	case 1:
-		rpcrdma_ep_disconnect(ep, ia);
+		rpcrdma_xprt_disconnect(r_xprt);
 		/* fall through */
 	default:
 		rc = rpcrdma_ep_reconnect(r_xprt);
@@ -668,7 +670,7 @@ static int rpcrdma_ep_reconnect(struct rpcrdma_xprt *r_xprt)
 
 	rc = rpcrdma_reqs_setup(r_xprt);
 	if (rc) {
-		rpcrdma_ep_disconnect(ep, ia);
+		rpcrdma_xprt_disconnect(r_xprt);
 		goto out;
 	}
 	rpcrdma_mrs_create(r_xprt);
@@ -683,18 +685,16 @@ static int rpcrdma_ep_reconnect(struct rpcrdma_xprt *r_xprt)
 }
 
 /**
- * rpcrdma_ep_disconnect - Disconnect underlying transport
- * @ep: endpoint to disconnect
- * @ia: associated interface adapter
+ * rpcrdma_xprt_disconnect - Disconnect underlying transport
+ * @r_xprt: controlling transport instance
  *
  * Caller serializes. Either the transport send lock is held,
  * or we're being called to destroy the transport.
  */
-void
-rpcrdma_ep_disconnect(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia)
+void rpcrdma_xprt_disconnect(struct rpcrdma_xprt *r_xprt)
 {
-	struct rpcrdma_xprt *r_xprt = container_of(ep, struct rpcrdma_xprt,
-						   rx_ep);
+	struct rpcrdma_ep *ep = &r_xprt->rx_ep;
+	struct rpcrdma_ia *ia = &r_xprt->rx_ia;
 	struct rdma_cm_id *id = ia->ri_id;
 	int rc;
 
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 82ec4c25432f..9ead06b1d8a4 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -464,8 +464,8 @@ struct rpcrdma_xprt {
 /*
  * Endpoint calls - xprtrdma/verbs.c
  */
-int rpcrdma_ep_connect(struct rpcrdma_ep *, struct rpcrdma_ia *);
-void rpcrdma_ep_disconnect(struct rpcrdma_ep *, struct rpcrdma_ia *);
+int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt);
+void rpcrdma_xprt_disconnect(struct rpcrdma_xprt *r_xprt);
 
 int rpcrdma_post_sends(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req);
 void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, bool temp);