NFS: Change nfs4_set_client() to accept struct sockaddr *

Adjust the arguments and callers of nfs4_set_client() to pass a "struct
sockaddr *" instead of a "struct sockaddr_in *" to support non-IPv4
addresses in the NFS client.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 15 insertions, 10 deletions

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index e43072bdbb0c..11380601fc78 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -927,15 +927,17 @@ error:
  * Set up an NFS4 client
  */
 static int nfs4_set_client(struct nfs_server *server,
-                const char *hostname, const struct sockaddr_in *addr,
+                const char *hostname,
+                const struct sockaddr *addr,
+                const size_t addrlen,
                 const char *ip_addr,
                 rpc_authflavor_t authflavour,
                 int proto, int timeo, int retrans)
 {
         struct nfs_client_initdata cl_init = {
                 .hostname = hostname,
-                .addr = (const struct sockaddr *)addr,
-                .addrlen = sizeof(*addr),
+                .addr = addr,
+                .addrlen = addrlen,
                 .rpc_ops = &nfs_v4_clientops,
         };
         struct nfs_client *clp;
@@ -1015,7 +1017,8 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
         /* Get a client record */
         error = nfs4_set_client(server,
                         data->nfs_server.hostname,
-                        &data->nfs_server.address,
+                        (struct sockaddr *)&data->nfs_server.address,
+                        sizeof(data->nfs_server.address),
                         data->client_address,
                         data->auth_flavors[0],
                         data->nfs_server.protocol,
@@ -1090,12 +1093,14 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 
         /* Get a client representation.
          * Note: NFSv4 always uses TCP, */
-        error = nfs4_set_client(server, data->hostname, data->addr,
-                        parent_client->cl_ipaddr,
-                        data->authflavor,
-                        parent_server->client->cl_xprt->prot,
-                        parent_client->retrans_timeo,
-                        parent_client->retrans_count);
+        error = nfs4_set_client(server, data->hostname,
+                                (struct sockaddr *)data->addr,
+                                sizeof(*data->addr),
+                                parent_client->cl_ipaddr,
+                                data->authflavor,
+                                parent_server->client->cl_xprt->prot,
+                                parent_client->retrans_timeo,
+                                parent_client->retrans_count);
         if (error < 0)
                 goto error;