linux-kernel - [PATCH 4.18 102/158] nfs: Referrals not inheriting proto setting from parent

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Message-Id: <20180917211716.020387022@linuxfoundation.org>
Date:   Tue, 18 Sep 2018 00:42:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Helen Chao <helen.chao@...cle.com>,
        Chuck Lever <chuck.lever@...cle.com>,
        Bill Baker <bill.baker@...cle.com>,
        Calum Mackay <calum.mackay@...cle.com>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.18 102/158] nfs: Referrals not inheriting proto setting from parent

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Calum Mackay <calum.mackay@...cle.com>

[ Upstream commit 23a88ade7131aa259c532ab17685c76de562242b ]

Commit 530ea4219231 ("nfs: Referrals should use the same proto setting
as their parent") encloses the fix with #ifdef CONFIG_SUNRPC_XPRT_RDMA.

CONFIG_SUNRPC_XPRT_RDMA is a tristate option, so it should be tested
with #if IS_ENABLED().

Fixes: 530ea4219231 ("nfs: Referrals should use the same proto setting as their parent")
Reported-by: Helen Chao <helen.chao@...cle.com>
Tested-by: Helen Chao <helen.chao@...cle.com>
Reviewed-by: Chuck Lever <chuck.lever@...cle.com>
Reviewed-by: Bill Baker <bill.baker@...cle.com>
Signed-off-by: Calum Mackay <calum.mackay@...cle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@...app.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/nfs/nfs4client.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1127,7 +1127,7 @@ struct nfs_server *nfs4_create_referral_
 	nfs_server_copy_userdata(server, parent_server);
 
 	/* Get a client representation */
-#ifdef CONFIG_SUNRPC_XPRT_RDMA
+#if IS_ENABLED(CONFIG_SUNRPC_XPRT_RDMA)
 	rpc_set_port(data->addr, NFS_RDMA_PORT);
 	error = nfs4_set_client(server, data->hostname,
 				data->addr,
@@ -1139,7 +1139,7 @@ struct nfs_server *nfs4_create_referral_
 				parent_client->cl_net);
 	if (!error)
 		goto init_server;
-#endif	/* CONFIG_SUNRPC_XPRT_RDMA */
+#endif	/* IS_ENABLED(CONFIG_SUNRPC_XPRT_RDMA) */
 
 	rpc_set_port(data->addr, NFS_PORT);
 	error = nfs4_set_client(server, data->hostname,
@@ -1153,7 +1153,7 @@ struct nfs_server *nfs4_create_referral_
 	if (error < 0)
 		goto error;
 
-#ifdef CONFIG_SUNRPC_XPRT_RDMA
+#if IS_ENABLED(CONFIG_SUNRPC_XPRT_RDMA)
 init_server:
 #endif
 	error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout, data->authflavor);