SUNRPC: Mark auth and cred operation tables as constant.

Also do the same for gss_api operation tables.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

8 files changed, 22 insertions, 25 deletions

diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index bc77c730325c..e606c2804685 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -35,7 +35,7 @@ struct rpc_credops;
 struct rpc_cred {
         struct hlist_node       cr_hash;        /* hash chain */
         struct rpc_auth *       cr_auth;
-        struct rpc_credops *    cr_ops;
+        const struct rpc_credops *cr_ops;
         unsigned long           cr_expire;      /* when to gc */
         atomic_t                cr_count;       /* ref count */
         unsigned short          cr_flags;       /* various flags */
@@ -73,7 +73,7 @@ struct rpc_auth {
         unsigned int            au_verfsize;
 
         unsigned int            au_flags;       /* various flags */
-        struct rpc_authops *    au_ops;         /* operations */
+        const struct rpc_authops *au_ops;               /* operations */
         rpc_authflavor_t        au_flavor;      /* pseudoflavor (note may
                                                  * differ from the flavor in
                                                  * au_ops->au_flavor in gss
@@ -119,14 +119,11 @@ struct rpc_credops {
                                                 void *, __be32 *, void *);
 };
 
-extern struct rpc_authops       authunix_ops;
-extern struct rpc_authops       authnull_ops;
-#ifdef CONFIG_SUNRPC_SECURE
-extern struct rpc_authops       authdes_ops;
-#endif
+extern const struct rpc_authops authunix_ops;
+extern const struct rpc_authops authnull_ops;
 
-int                     rpcauth_register(struct rpc_authops *);
-int                     rpcauth_unregister(struct rpc_authops *);
+int                     rpcauth_register(const struct rpc_authops *);
+int                     rpcauth_unregister(const struct rpc_authops *);
 struct rpc_auth *       rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
 void                    rpcauth_release(struct rpc_auth *);
 struct rpc_cred *       rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
index 5eca9e442051..bbac101ac372 100644
--- a/include/linux/sunrpc/gss_api.h
+++ b/include/linux/sunrpc/gss_api.h
@@ -77,7 +77,7 @@ struct gss_api_mech {
         struct module           *gm_owner;
         struct xdr_netobj       gm_oid;
         char                    *gm_name;
-        struct gss_api_ops      *gm_ops;
+        const struct gss_api_ops *gm_ops;
         /* pseudoflavors supported by this mechanism: */
         int                     gm_pf_num;
         struct pf_desc *        gm_pfs;
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 1686dc74c6a9..d3f0f944c0b5 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -19,7 +19,7 @@
 #endif
 
 static DEFINE_SPINLOCK(rpc_authflavor_lock);
-static struct rpc_authops *     auth_flavors[RPC_AUTH_MAXFLAVOR] = {
+static const struct rpc_authops *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
         &authnull_ops,          /* AUTH_NULL */
         &authunix_ops,          /* AUTH_UNIX */
         NULL,                   /* others can be loadable modules */
@@ -33,7 +33,7 @@ pseudoflavor_to_flavor(u32 flavor) {
 }
 
 int
-rpcauth_register(struct rpc_authops *ops)
+rpcauth_register(const struct rpc_authops *ops)
 {
         rpc_authflavor_t flavor;
         int ret = -EPERM;
@@ -50,7 +50,7 @@ rpcauth_register(struct rpc_authops *ops)
 }
 
 int
-rpcauth_unregister(struct rpc_authops *ops)
+rpcauth_unregister(const struct rpc_authops *ops)
 {
         rpc_authflavor_t flavor;
         int ret = -EPERM;
@@ -70,7 +70,7 @@ struct rpc_auth *
 rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
 {
         struct rpc_auth         *auth;
-        struct rpc_authops      *ops;
+        const struct rpc_authops *ops;
         u32                     flavor = pseudoflavor_to_flavor(pseudoflavor);
 
         auth = ERR_PTR(-EINVAL);
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 459dc9b1d1ad..177a9e413c0a 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -54,9 +54,9 @@
 #include <linux/sunrpc/gss_api.h>
 #include <asm/uaccess.h>
 
-static struct rpc_authops authgss_ops;
+static const struct rpc_authops authgss_ops;
 
-static struct rpc_credops gss_credops;
+static const struct rpc_credops gss_credops;
 
 #ifdef RPC_DEBUG
 # define RPCDBG_FACILITY        RPCDBG_AUTH
@@ -1193,7 +1193,7 @@ out:
         return status;
 }
 
-static struct rpc_authops authgss_ops = {
+static const struct rpc_authops authgss_ops = {
         .owner          = THIS_MODULE,
         .au_flavor      = RPC_AUTH_GSS,
 #ifdef RPC_DEBUG
@@ -1205,7 +1205,7 @@ static struct rpc_authops authgss_ops = {
         .crcreate       = gss_create_cred
 };
 
-static struct rpc_credops gss_credops = {
+static const struct rpc_credops gss_credops = {
         .cr_name        = "AUTH_GSS",
         .crdestroy      = gss_destroy_cred,
         .cr_init        = gss_cred_init,
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 7b1943217053..71b9daefdff3 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -201,7 +201,7 @@ gss_delete_sec_context_kerberos(void *internal_ctx) {
         kfree(kctx);
 }
 
-static struct gss_api_ops gss_kerberos_ops = {
+static const struct gss_api_ops gss_kerberos_ops = {
         .gss_import_sec_context = gss_import_sec_context_kerberos,
         .gss_get_mic            = gss_get_mic_kerberos,
         .gss_verify_mic         = gss_verify_mic_kerberos,
diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c
index 7e15aa68ae64..577d590e755f 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_mech.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c
@@ -202,7 +202,7 @@ gss_get_mic_spkm3(struct gss_ctx	*ctx,
         return err;
 }
 
-static struct gss_api_ops gss_spkm3_ops = {
+static const struct gss_api_ops gss_spkm3_ops = {
         .gss_import_sec_context = gss_import_sec_context_spkm3,
         .gss_get_mic            = gss_get_mic_spkm3,
         .gss_verify_mic         = gss_verify_mic_spkm3,
diff --git a/net/sunrpc/auth_null.c b/net/sunrpc/auth_null.c
index 890bd9b3794b..fe9b6aaf91eb 100644
--- a/net/sunrpc/auth_null.c
+++ b/net/sunrpc/auth_null.c
@@ -101,7 +101,7 @@ nul_validate(struct rpc_task *task, __be32 *p)
         return p;
 }
 
-struct rpc_authops authnull_ops = {
+const struct rpc_authops authnull_ops = {
         .owner          = THIS_MODULE,
         .au_flavor      = RPC_AUTH_NULL,
 #ifdef RPC_DEBUG
@@ -122,7 +122,7 @@ struct rpc_auth null_auth = {
 };
 
 static
-struct rpc_credops      null_credops = {
+const struct rpc_credops null_credops = {
         .cr_name        = "AUTH_NULL",
         .crdestroy      = nul_destroy_cred,
         .crmatch        = nul_match,
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index e54782e75d59..6600c7ad72a9 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -34,7 +34,7 @@ struct unx_cred {
 
 static struct rpc_auth          unix_auth;
 static struct rpc_cred_cache    unix_cred_cache;
-static struct rpc_credops       unix_credops;
+static const struct rpc_credops unix_credops;
 
 static struct rpc_auth *
 unx_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
@@ -205,7 +205,7 @@ unx_validate(struct rpc_task *task, __be32 *p)
         return p;
 }
 
-struct rpc_authops      authunix_ops = {
+const struct rpc_authops authunix_ops = {
         .owner          = THIS_MODULE,
         .au_flavor      = RPC_AUTH_UNIX,
 #ifdef RPC_DEBUG
@@ -233,7 +233,7 @@ struct rpc_auth		unix_auth = {
 };
 
 static
-struct rpc_credops      unix_credops = {
+const struct rpc_credops unix_credops = {
         .cr_name        = "AUTH_UNIX",
         .crdestroy      = unx_destroy_cred,
         .crmatch        = unx_match,