[PATCH 17/32] kasan: only define metadata structs for Generic mode

[andrey . konovalov]

From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>

Hide the definitions of kasan_alloc_meta and kasan_free_meta under
an ifdef CONFIG_KASAN_GENERIC check, as these structures are now only
used when the Generic mode is enabled.

Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
---
 mm/kasan/kasan.h | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index ab2cd3ff10f3..30ec9ebf52c3 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -192,14 +192,12 @@ struct kasan_track {
 	depot_stack_handle_t stack;
 };
 
+#ifdef CONFIG_KASAN_GENERIC
+
 struct kasan_alloc_meta {
 	struct kasan_track alloc_track;
-	/* Generic mode stores free track in kasan_free_meta. */
-#ifdef CONFIG_KASAN_GENERIC
+	/* Free track is stored in kasan_free_meta. */
 	depot_stack_handle_t aux_stack[2];
-#else
-	struct kasan_track free_track;
-#endif
 };
 
 struct qlist_node {
@@ -218,12 +216,12 @@ struct qlist_node {
  * After that, slab allocator stores the freelist pointer in the object.
  */
 struct kasan_free_meta {
-#ifdef CONFIG_KASAN_GENERIC
 	struct qlist_node quarantine_link;
 	struct kasan_track free_track;
-#endif
 };
 
+#endif /* CONFIG_KASAN_GENERIC */
+
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 /* Used in KUnit-compatible KASAN tests. */
 struct kunit_kasan_status {
-- 
2.25.1