linux-kernel - [PATCH AUTOSEL 5.15 11/41] SUNRPC allow for unspecified transport time in rpc_clnt_add

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Message-Id: <20220203203245.3007-11-sashal@kernel.org>
Date:   Thu,  3 Feb 2022 15:32:15 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Olga Kornievskaia <kolga@...app.com>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Sasha Levin <sashal@...nel.org>,
        trond.myklebust@...merspace.com, anna.schumaker@...app.com,
        chuck.lever@...cle.com, davem@...emloft.net, kuba@...nel.org,
        linux-nfs@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 11/41] SUNRPC allow for unspecified transport time in rpc_clnt_add_xprt

From: Olga Kornievskaia <kolga@...app.com>

[ Upstream commit b8a09619a56334414cbd7f935a0796240d0cc07e ]

If the supplied argument doesn't specify the transport type, use the
type of the existing rpc clnt and its existing transport.

Signed-off-by: Olga Kornievskaia <kolga@...app.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@...app.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/sunrpc/clnt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index f056ff9314442..5da1d7e8468a5 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2903,7 +2903,7 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt,
 	unsigned long connect_timeout;
 	unsigned long reconnect_timeout;
 	unsigned char resvport, reuseport;
-	int ret = 0;
+	int ret = 0, ident;
 
 	rcu_read_lock();
 	xps = xprt_switch_get(rcu_dereference(clnt->cl_xpi.xpi_xpswitch));
@@ -2917,8 +2917,11 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt,
 	reuseport = xprt->reuseport;
 	connect_timeout = xprt->connect_timeout;
 	reconnect_timeout = xprt->max_reconnect_timeout;
+	ident = xprt->xprt_class->ident;
 	rcu_read_unlock();
 
+	if (!xprtargs->ident)
+		xprtargs->ident = ident;
 	xprt = xprt_create_transport(xprtargs);
 	if (IS_ERR(xprt)) {
 		ret = PTR_ERR(xprt);
-- 
2.34.1