nfsd: define exports_proc_ops with CONFIG_PROC_FS

gcc with W=1 and ! CONFIG_PROC_FS
fs/nfsd/nfsctl.c:161:30: error: ‘exports_proc_ops’
  defined but not used [-Werror=unused-const-variable=]
  161 | static const struct proc_ops exports_proc_ops = {
      |                              ^~~~~~~~~~~~~~~~

The only use of exports_proc_ops is when CONFIG_PROC_FS
is defined, so its definition should be likewise conditional.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 7b8f17ee52243171fac7b30284c8986725a8232c..c159817d128217b11832e525559f7217d7020306 100644 (file)
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -153,18 +153,6 @@ static int exports_net_open(struct net *net, struct file *file)
        return 0;
 }
 
-static int exports_proc_open(struct inode *inode, struct file *file)
-{
-       return exports_net_open(current->nsproxy->net_ns, file);
-}
-
-static const struct proc_ops exports_proc_ops = {
-       .proc_open      = exports_proc_open,
-       .proc_read      = seq_read,
-       .proc_lseek     = seq_lseek,
-       .proc_release   = seq_release,
-};
-
 static int exports_nfsd_open(struct inode *inode, struct file *file)
 {
        return exports_net_open(inode->i_sb->s_fs_info, file);
@@ -1458,6 +1446,19 @@ static struct file_system_type nfsd_fs_type = {
 MODULE_ALIAS_FS("nfsd");
 
 #ifdef CONFIG_PROC_FS
+
+static int exports_proc_open(struct inode *inode, struct file *file)
+{
+       return exports_net_open(current->nsproxy->net_ns, file);
+}
+
+static const struct proc_ops exports_proc_ops = {
+       .proc_open      = exports_proc_open,
+       .proc_read      = seq_read,
+       .proc_lseek     = seq_lseek,
+       .proc_release   = seq_release,
+};
+
 static int create_proc_exports_entry(void)
 {
        struct proc_dir_entry *entry;