NFSv4: Don't use cred->cr_ops->cr_name in nfs4_proc_setclientid()

With the recent change to generic creds, we can no longer use
cred->cr_ops->cr_name to distinguish between RPCSEC_GSS principals and
AUTH_SYS/AUTH_NULL identities. Replace it with the rpc_authops->au_name
instead...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a106932..dbc0927 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2885,7 +2885,7 @@
 							RPC_DISPLAY_ADDR),
 				rpc_peeraddr2str(clp->cl_rpcclient,
 							RPC_DISPLAY_PROTO),
-				cred->cr_ops->cr_name,
+				clp->cl_rpcclient->cl_auth->au_ops->au_name,
 				clp->cl_id_uniquifier);
 		setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
 				sizeof(setclientid.sc_netid),
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index e93cd8a..a19c3af 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -96,9 +96,7 @@
 struct rpc_authops {
 	struct module		*owner;
 	rpc_authflavor_t	au_flavor;	/* flavor (RPC_AUTH_*) */
-#ifdef RPC_DEBUG
 	char *			au_name;
-#endif
 	struct rpc_auth *	(*create)(struct rpc_clnt *, rpc_authflavor_t);
 	void			(*destroy)(struct rpc_auth *);
 
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index 6a3f77c..b6f124c 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -136,9 +136,7 @@
 
 static const struct rpc_authops generic_auth_ops = {
 	.owner = THIS_MODULE,
-#ifdef RPC_DEBUG
 	.au_name = "Generic",
-#endif
 	.lookup_cred = generic_lookup_cred,
 	.crcreate = generic_create_cred,
 };
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 55948cd..7567eb9 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1287,9 +1287,7 @@
 static const struct rpc_authops authgss_ops = {
 	.owner		= THIS_MODULE,
 	.au_flavor	= RPC_AUTH_GSS,
-#ifdef RPC_DEBUG
 	.au_name	= "RPCSEC_GSS",
-#endif
 	.create		= gss_create,
 	.destroy	= gss_destroy,
 	.lookup_cred	= gss_lookup_cred,
diff --git a/net/sunrpc/auth_null.c b/net/sunrpc/auth_null.c
index 3c26c18..c70dd7f 100644
--- a/net/sunrpc/auth_null.c
+++ b/net/sunrpc/auth_null.c
@@ -104,9 +104,7 @@
 const struct rpc_authops authnull_ops = {
 	.owner		= THIS_MODULE,
 	.au_flavor	= RPC_AUTH_NULL,
-#ifdef RPC_DEBUG
 	.au_name	= "NULL",
-#endif
 	.create		= nul_create,
 	.destroy	= nul_destroy,
 	.lookup_cred	= nul_lookup_cred,
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 04e936a..44920b9 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -210,9 +210,7 @@
 const struct rpc_authops authunix_ops = {
 	.owner		= THIS_MODULE,
 	.au_flavor	= RPC_AUTH_UNIX,
-#ifdef RPC_DEBUG
 	.au_name	= "UNIX",
-#endif
 	.create		= unx_create,
 	.destroy	= unx_destroy,
 	.lookup_cred	= unx_lookup_cred,