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-rw-r--r--mm/slab.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h
index 9ae9f6c3d1cb..039babfde2fe 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -812,4 +812,15 @@ struct kmem_obj_info {
void kmem_obj_info(struct kmem_obj_info *kpp, void *object, struct slab *slab);
#endif
+#ifdef CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR
+void __check_heap_object(const void *ptr, unsigned long n,
+ const struct slab *slab, bool to_user);
+#else
+static inline
+void __check_heap_object(const void *ptr, unsigned long n,
+ const struct slab *slab, bool to_user)
+{
+}
+#endif
+
#endif /* MM_SLAB_H */