[PATCH] integrity: make integrity_add_key() static

[Jason Yan]

Fix the following sparse warning:

security/integrity/digsig.c:145:12: warning: symbol 'integrity_add_key'
was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Jason Yan <yanaijie at huawei.com>
---
 security/integrity/digsig.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index e9cbadade74b..8cdda97bd196 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -142,8 +142,8 @@ int __init integrity_init_keyring(const unsigned int id)
 	return __integrity_init_keyring(id, perm, restriction);
 }
 
-int __init integrity_add_key(const unsigned int id, const void *data,
-			     off_t size, key_perm_t perm)
+static int __init integrity_add_key(const unsigned int id, const void *data,
+				    off_t size, key_perm_t perm)
 {
 	key_ref_t key;
 	int rc = 0;
-- 
2.17.2