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Subject[PATCH] nfs/super.c: local functions should be static
Date
commit ae50c0b5 "pnfs: client stats" added additional information to
the output of /proc/self/mountstats. The new functions introduced are
only used in this file and should be marked static.

If CONFIG_NFS_V4_1 is not defined, empty stub functions are used. If
CONFIG_NFS_V4 is not defined these stub functions are not used at all.
Adding static for the functions results in compile warnings:

fs/nfs/super.c:743: warning: 'show_sessions' defined but not used
fs/nfs/super.c:756: warning: 'show_pnfs' defined but not used

Fix this by adding a #ifdef CONFIG_NFS_V4 guard around the two
show_ functions.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>

---
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index b961cea..4b07e9b 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -733,18 +733,22 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)

return 0;
}
+
+#ifdef CONFIG_NFS_V4
#ifdef CONFIG_NFS_V4_1
-void show_sessions(struct seq_file *m, struct nfs_server *server)
+static void show_sessions(struct seq_file *m, struct nfs_server *server)
{
if (nfs4_has_session(server->nfs_client))
seq_printf(m, ",sessions");
}
#else
-void show_sessions(struct seq_file *m, struct nfs_server *server) {}
+static void show_sessions(struct seq_file *m, struct nfs_server *server) {}
+#endif
#endif

+#ifdef CONFIG_NFS_V4
#ifdef CONFIG_NFS_V4_1
-void show_pnfs(struct seq_file *m, struct nfs_server *server)
+static void show_pnfs(struct seq_file *m, struct nfs_server *server)
{
seq_printf(m, ",pnfs=");
if (server->pnfs_curr_ld)
@@ -752,9 +756,10 @@ void show_pnfs(struct seq_file *m, struct nfs_server *server)
else
seq_printf(m, "not configured");
}
-#else /* CONFIG_NFS_V4_1 */
-void show_pnfs(struct seq_file *m, struct nfs_server *server) {}
-#endif /* CONFIG_NFS_V4_1 */
+#else
+static void show_pnfs(struct seq_file *m, struct nfs_server *server) {}
+#endif
+#endif

static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt)
{

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