1 files changed, 19 insertions, 2 deletions
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 6f0c5d9aa43f..5e0655fb2a6f 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -82,17 +82,30 @@ struct kasan_cache {
 };
 
 #ifdef CONFIG_KASAN_HW_TAGS
+
 DECLARE_STATIC_KEY_FALSE(kasan_flag_enabled);
+
 static __always_inline bool kasan_enabled(void)
 {
 	return static_branch_likely(&kasan_flag_enabled);
 }
-#else
+
+#else /* CONFIG_KASAN_HW_TAGS */
+
 static inline bool kasan_enabled(void)
 {
 	return true;
 }
-#endif
+
+#endif /* CONFIG_KASAN_HW_TAGS */
+
+slab_flags_t __kasan_never_merge(void);
+static __always_inline slab_flags_t kasan_never_merge(void)
+{
+	if (kasan_enabled())
+		return __kasan_never_merge();
+	return 0;
+}
 
 void __kasan_unpoison_range(const void *addr, size_t size);
 static __always_inline void kasan_unpoison_range(const void *addr, size_t size)
@@ -239,6 +252,10 @@ static inline bool kasan_enabled(void)
 {
 	return false;
 }
+static inline slab_flags_t kasan_never_merge(void)
+{
+	return 0;
+}
 static inline void kasan_unpoison_range(const void *address, size_t size) {}
 static inline void kasan_alloc_pages(struct page *page, unsigned int order) {}
 static inline void kasan_free_pages(struct page *page, unsigned int order) {}