summaryrefslogtreecommitdiff
path: root/mm/kasan/kasan.h
diff options
context:
space:
mode:
Diffstat (limited to 'mm/kasan/kasan.h')
-rw-r--r--mm/kasan/kasan.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 6e811d0f6242..ca43de9811de 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -5,6 +5,22 @@
#include <linux/kasan.h>
#include <linux/stackdepot.h>
+#ifdef CONFIG_KASAN_HW_TAGS
+#include <linux/static_key.h>
+DECLARE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
+static inline bool kasan_stack_collection_enabled(void)
+{
+ return static_branch_unlikely(&kasan_flag_stacktrace);
+}
+#else
+static inline bool kasan_stack_collection_enabled(void)
+{
+ return true;
+}
+#endif
+
+extern bool kasan_flag_panic __ro_after_init;
+
#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
#define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT)
#else