audit: remove WATCH and TREE config options

Remove the CONFIG_AUDIT_WATCH and CONFIG_AUDIT_TREE config options since
they are both dependent on CONFIG_AUDITSYSCALL and force
CONFIG_FSNOTIFY.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

init/Kconfig

@@ -335,15 +335,6 @@ config HAVE_ARCH_AUDITSYSCALL
 config AUDITSYSCALL
 	def_bool y
 	depends on AUDIT && HAVE_ARCH_AUDITSYSCALL
-
-config AUDIT_WATCH
-	def_bool y
-	depends on AUDITSYSCALL
-	select FSNOTIFY
-
-config AUDIT_TREE
-	def_bool y
-	depends on AUDITSYSCALL
 	select FSNOTIFY
 
 source "kernel/irq/Kconfig"

kernel/Makefile

@@ -76,9 +76,7 @@ obj-$(CONFIG_IKCONFIG) += configs.o
 obj-$(CONFIG_SMP) += stop_machine.o
 obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
-obj-$(CONFIG_AUDITSYSCALL) += auditsc.o
-obj-$(CONFIG_AUDIT_WATCH) += audit_watch.o audit_fsnotify.o
-obj-$(CONFIG_AUDIT_TREE) += audit_tree.o
+obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_watch.o audit_fsnotify.o audit_tree.o
 obj-$(CONFIG_GCOV_KERNEL) += gcov/
 obj-$(CONFIG_KCOV) += kcov.o
 obj-$(CONFIG_KPROBES) += kprobes.o

kernel/audit.h

@@ -268,7 +268,7 @@ extern struct tty_struct *audit_get_tty(struct task_struct *tsk);
 extern void audit_put_tty(struct tty_struct *tty);
 
 /* audit watch functions */
-#ifdef CONFIG_AUDIT_WATCH
+#ifdef CONFIG_AUDITSYSCALL
 extern void audit_put_watch(struct audit_watch *watch);
 extern void audit_get_watch(struct audit_watch *watch);
 extern int audit_to_watch(struct audit_krule *krule, char *path, int len, u32 op);
@@ -301,9 +301,9 @@ extern int audit_exe_compare(struct task_struct *tsk, struct audit_fsnotify_mark
 #define audit_mark_compare(m, i, d) 0
 #define audit_exe_compare(t, m) (-EINVAL)
 #define audit_dupe_exe(n, o) (-EINVAL)
-#endif /* CONFIG_AUDIT_WATCH */
+#endif /* CONFIG_AUDITSYSCALL */
 
-#ifdef CONFIG_AUDIT_TREE
+#ifdef CONFIG_AUDITSYSCALL
 extern struct audit_chunk *audit_tree_lookup(const struct inode *inode);
 extern void audit_put_chunk(struct audit_chunk *chunk);
 extern bool audit_tree_match(struct audit_chunk *chunk, struct audit_tree *tree);

kernel/auditsc.c

@@ -200,7 +200,6 @@ static int audit_match_filetype(struct audit_context *ctx, int val)
  * References in it _are_ dropped - at the same time we free/drop aux stuff.
  */
 
-#ifdef CONFIG_AUDIT_TREE
 static void audit_set_auditable(struct audit_context *ctx)
 {
 	if (!ctx->prio) {
@@ -245,12 +244,10 @@ static int grow_tree_refs(struct audit_context *ctx)
 	ctx->tree_count = 31;
 	return 1;
 }
-#endif
 
 static void unroll_tree_refs(struct audit_context *ctx,
 		      struct audit_tree_refs *p, int count)
 {
-#ifdef CONFIG_AUDIT_TREE
 	struct audit_tree_refs *q;
 	int n;
 	if (!p) {
@@ -274,7 +271,6 @@ static void unroll_tree_refs(struct audit_context *ctx,
 	}
 	ctx->trees = p;
 	ctx->tree_count = count;
-#endif
 }
 
 static void free_tree_refs(struct audit_context *ctx)
@@ -288,7 +284,6 @@ static void free_tree_refs(struct audit_context *ctx)
 
 static int match_tree_refs(struct audit_context *ctx, struct audit_tree *tree)
 {
-#ifdef CONFIG_AUDIT_TREE
 	struct audit_tree_refs *p;
 	int n;
 	if (!tree)
@@ -305,7 +300,6 @@ static int match_tree_refs(struct audit_context *ctx, struct audit_tree *tree)
 			if (audit_tree_match(p->c[n], tree))
 				return 1;
 	}
-#endif
 	return 0;
 }
 
@@ -1602,7 +1596,6 @@ void __audit_syscall_exit(int success, long return_code)
 
 static inline void handle_one(const struct inode *inode)
 {
-#ifdef CONFIG_AUDIT_TREE
 	struct audit_context *context;
 	struct audit_tree_refs *p;
 	struct audit_chunk *chunk;
@@ -1627,12 +1620,10 @@ static inline void handle_one(const struct inode *inode)
 		return;
 	}
 	put_tree_ref(context, chunk);
-#endif
 }
 
 static void handle_path(const struct dentry *dentry)
 {
-#ifdef CONFIG_AUDIT_TREE
 	struct audit_context *context;
 	struct audit_tree_refs *p;
 	const struct dentry *d, *parent;
@@ -1685,7 +1676,6 @@ static void handle_path(const struct dentry *dentry)
 		return;
 	}
 	rcu_read_unlock();
-#endif
 }
 
 static struct audit_names *audit_alloc_name(struct audit_context *context,