[PATCH -next] audit: make is_audit_feature_set() static

[Xiu Jianfeng]

Currently nobody use is_audit_feature_set() outside this file, so make
it static.

Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
---
 include/linux/audit.h | 2 --
 kernel/audit.c        | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/linux/audit.h b/include/linux/audit.h
index cece70231138..00f7a80f1a3e 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -119,8 +119,6 @@ enum audit_nfcfgop {
 	AUDIT_NFT_OP_INVALID,
 };
 
-extern int is_audit_feature_set(int which);
-
 extern int __init audit_register_class(int class, unsigned *list);
 extern int audit_classify_syscall(int abi, unsigned syscall);
 extern int audit_classify_arch(int arch);
diff --git a/kernel/audit.c b/kernel/audit.c
index 0749211d5552..a75978ae38ad 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1100,7 +1100,7 @@ static inline void audit_log_user_recv_msg(struct audit_buffer **ab,
 	audit_log_common_recv_msg(NULL, ab, msg_type);
 }
 
-int is_audit_feature_set(int i)
+static int is_audit_feature_set(int i)
 {
 	return af.features & AUDIT_FEATURE_TO_MASK(i);
 }
-- 
2.17.1