[RFC PATCH] fat: msdos_ncache can be static

[kernel test robot]

fs/fat/namei_msdos.c:37:1: warning: symbol 'msdos_ncache' was not declared. Should it be static?
fs/fat/namei_msdos.c:38:1: warning: symbol 'msdos_ncache_mutex' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
---
 namei_msdos.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 7561674b16a22..f44d590a11583 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -34,8 +34,8 @@ struct msdos_name_node {
 	struct hlist_node h_list;
 };
 
-DEFINE_HASHTABLE(msdos_ncache, 6);
-DEFINE_MUTEX(msdos_ncache_mutex); /* protect the name cache */
+static DEFINE_HASHTABLE(msdos_ncache, 6);
+static DEFINE_MUTEX(msdos_ncache_mutex); /* protect the name cache */
 
 /**
  * msdos_fname_hash() - quickly "hash" an msdos filename