selinux: sparse fix: eliminate warnings for selinuxfs

Fixes several sparse warnings for selinuxfs.c

Signed-off-by: James Morris <jmorris@namei.org>

3 files changed, 4 insertions, 6 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index e07cf7fcdce2..4a176b468719 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2097,9 +2097,6 @@ static int selinux_bprm_secureexec(struct linux_binprm *bprm)
         return (atsecure || cap_bprm_secureexec(bprm));
 }
 
-extern struct vfsmount *selinuxfs_mount;
-extern struct dentry *selinux_null;
-
 /* Derived from fs/exec.c:flush_old_files. */
 static inline void flush_unauthorized_files(const struct cred *cred,
                                             struct files_struct *files)
@@ -5803,8 +5800,6 @@ static int selinux_disabled;
 
 int selinux_disable(void)
 {
-        extern void exit_sel_fs(void);
-
         if (ss_initialized) {
                 /* Not permitted after initial policy load. */
                 return -EINVAL;
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 30002c43436f..13b626352f0b 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -218,6 +218,9 @@ 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);
+extern void exit_sel_fs(void);
+extern struct dentry *selinux_null;
+extern struct vfsmount *selinuxfs_mount;
 
 #endif /* _SELINUX_SECURITY_H_ */
 
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index d3677c6c12c6..ba2ada5f16a9 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -477,7 +477,7 @@ static struct vm_operations_struct sel_mmap_policy_ops = {
         .page_mkwrite = sel_mmap_policy_fault,
 };
 
-int sel_mmap_policy(struct file *filp, struct vm_area_struct *vma)
+static int sel_mmap_policy(struct file *filp, struct vm_area_struct *vma)
 {
         if (vma->vm_flags & VM_SHARED) {
                 /* do not allow mprotect to make mapping writable */