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    Subject[PATCH 4.18 102/158] nfs: Referrals not inheriting proto setting from parent
    Date
    4.18-stable review patch.  If anyone has any objections, please let me know.

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

    From: Calum Mackay <calum.mackay@oracle.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@oracle.com>
    Tested-by: Helen Chao <helen.chao@oracle.com>
    Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
    Reviewed-by: Bill Baker <bill.baker@oracle.com>
    Signed-off-by: Calum Mackay <calum.mackay@oracle.com>
    Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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);

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