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-rw-r--r--mm/kasan/kasan.h36
1 files changed, 24 insertions, 12 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index cfff81139d67..447baf1a7a2e 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -8,13 +8,31 @@
#include <linux/kfence.h>
#include <linux/stackdepot.h>
-#ifdef CONFIG_KASAN_HW_TAGS
+#if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
#include <linux/static_key.h>
+
+DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
+
+static inline bool kasan_stack_collection_enabled(void)
+{
+ return static_branch_unlikely(&kasan_flag_stacktrace);
+}
+
+#else /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */
+
+static inline bool kasan_stack_collection_enabled(void)
+{
+ return true;
+}
+
+#endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */
+
+#ifdef CONFIG_KASAN_HW_TAGS
+
#include "../slab.h"
DECLARE_STATIC_KEY_TRUE(kasan_flag_vmalloc);
-DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
enum kasan_mode {
KASAN_MODE_SYNC,
@@ -29,11 +47,6 @@ static inline bool kasan_vmalloc_enabled(void)
return static_branch_likely(&kasan_flag_vmalloc);
}
-static inline bool kasan_stack_collection_enabled(void)
-{
- return static_branch_unlikely(&kasan_flag_stacktrace);
-}
-
static inline bool kasan_async_fault_possible(void)
{
return kasan_mode == KASAN_MODE_ASYNC || kasan_mode == KASAN_MODE_ASYMM;
@@ -46,11 +59,6 @@ static inline bool kasan_sync_fault_possible(void)
#else /* CONFIG_KASAN_HW_TAGS */
-static inline bool kasan_stack_collection_enabled(void)
-{
- return true;
-}
-
static inline bool kasan_async_fault_possible(void)
{
return false;
@@ -410,6 +418,10 @@ static inline void kasan_enable_tagging(void) { }
#endif /* CONFIG_KASAN_HW_TAGS */
+#if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
+void __init kasan_init_tags(void);
+#endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */
+
#if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
void kasan_force_async_fault(void);