security: remove dead hook sb_post_pivotroot

Unused hook.  Remove.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

4 files changed, 0 insertions, 22 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 7a0c9ce62bed..c36785a2fd86 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2265,7 +2265,6 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
         touch_mnt_namespace(current->nsproxy->mnt_ns);
         spin_unlock(&vfsmount_lock);
         chroot_fs_refs(&root, &new);
-        security_sb_post_pivotroot(&root, &new);
         error = 0;
         path_put(&root_parent);
         path_put(&parent_path);
diff --git a/include/linux/security.h b/include/linux/security.h
index a42d733086a1..4de5bbb39052 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -277,10 +277,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      @old_path contains the path for the new location of the current root (put_old).
  *      @new_path contains the path for the new root (new_root).
  *      Return 0 if permission is granted.
- * @sb_post_pivotroot:
- *      Update module state after a successful pivot.
- *      @old_path contains the path for the old root.
- *      @new_path contains the path for the new root.
  * @sb_set_mnt_opts:
  *      Set the security relevant mount options used for a superblock
  *      @sb the superblock to set security mount options for
@@ -1458,8 +1454,6 @@ struct security_operations {
         int (*sb_umount) (struct vfsmount *mnt, int flags);
         int (*sb_pivotroot) (struct path *old_path,
                              struct path *new_path);
-        void (*sb_post_pivotroot) (struct path *old_path,
-                                   struct path *new_path);
         int (*sb_set_mnt_opts) (struct super_block *sb,
                                 struct security_mnt_opts *opts);
         void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
@@ -1749,7 +1743,6 @@ int security_sb_mount(char *dev_name, struct path *path,
                       char *type, unsigned long flags, void *data);
 int security_sb_umount(struct vfsmount *mnt, int flags);
 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
-void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
                                 struct super_block *newsb);
@@ -2069,10 +2062,6 @@ static inline int security_sb_pivotroot(struct path *old_path,
         return 0;
 }
 
-static inline void security_sb_post_pivotroot(struct path *old_path,
-                                              struct path *new_path)
-{ }
-
 static inline int security_sb_set_mnt_opts(struct super_block *sb,
                                            struct security_mnt_opts *opts)
 {
diff --git a/security/capability.c b/security/capability.c
index 38752ddf69d7..b64b50105a04 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -90,10 +90,6 @@ static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
         return 0;
 }
 
-static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path)
-{
-}
-
 static int cap_sb_set_mnt_opts(struct super_block *sb,
                                struct security_mnt_opts *opts)
 {
@@ -921,7 +917,6 @@ void security_fixup_ops(struct security_operations *ops)
         set_to_cap_if_null(ops, sb_mount);
         set_to_cap_if_null(ops, sb_umount);
         set_to_cap_if_null(ops, sb_pivotroot);
-        set_to_cap_if_null(ops, sb_post_pivotroot);
         set_to_cap_if_null(ops, sb_set_mnt_opts);
         set_to_cap_if_null(ops, sb_clone_mnt_opts);
         set_to_cap_if_null(ops, sb_parse_opts_str);
diff --git a/security/security.c b/security/security.c
index 6a8e5411d7a0..5223fa408271 100644
--- a/security/security.c
+++ b/security/security.c
@@ -316,11 +316,6 @@ int security_sb_pivotroot(struct path *old_path, struct path *new_path)
         return security_ops->sb_pivotroot(old_path, new_path);
 }
 
-void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
-{
-        security_ops->sb_post_pivotroot(old_path, new_path);
-}
-
 int security_sb_set_mnt_opts(struct super_block *sb,
                                 struct security_mnt_opts *opts)
 {