selinux: sparse fix: declare selinux_disable() in security.h

Sparse fix: declare selinux_disable() in security.h
Signed-off-by: NJames Morris <jmorris@namei.org>

security/selinux/include/security.h

@@ -217,6 +217,7 @@ struct selinux_kernel_status {
 extern void selinux_status_update_setenforce(int enforcing);
 extern void selinux_status_update_policyload(int seqno);
 extern void selinux_complete_init(void);
+extern int selinux_disable(void);
 
 #endif /* _SELINUX_SECURITY_H_ */
 

security/selinux/selinuxfs.c

@@ -278,7 +278,6 @@ static ssize_t sel_write_disable(struct file *file, const char __user *buf,
 	char *page = NULL;
 	ssize_t length;
 	int new_value;
-	extern int selinux_disable(void);
 
 	length = -ENOMEM;
 	if (count >= PAGE_SIZE)