diff --git a/sys/kern/kern_malloc.c b/sys/kern/kern_malloc.c
--- a/sys/kern/kern_malloc.c
+++ b/sys/kern/kern_malloc.c
@@ -562,24 +562,6 @@
 /*
  * Handle large allocations and frees by using kmem_malloc directly.
  */
-static inline bool
-malloc_large_slab(uma_slab_t slab)
-{
-	uintptr_t va;
-
-	va = (uintptr_t)slab;
-	return ((va & 1) != 0);
-}
-
-static inline size_t
-malloc_large_size(uma_slab_t slab)
-{
-	uintptr_t va;
-
-	va = (uintptr_t)slab;
-	return (va >> 1);
-}
-
 static caddr_t __noinline
 malloc_large(size_t size, struct malloc_type *mtp, struct domainset *policy,
     int flags DEBUG_REDZONE_ARG_DEF)
diff --git a/sys/sys/malloc.h b/sys/sys/malloc.h
--- a/sys/sys/malloc.h
+++ b/sys/sys/malloc.h
@@ -170,6 +170,7 @@
 MALLOC_DECLARE(M_IOV);
 
 struct domainset;
+struct uma_slab;
 extern struct mtx malloc_mtx;
 
 /*
@@ -286,6 +287,24 @@
 	    nmemb > 0 && __SIZE_T_MAX / nmemb < size);
 }
 #undef MUL_NO_OVERFLOW
+
+static inline bool
+malloc_large_slab(struct uma_slab *slab)
+{
+       uintptr_t va;
+
+       va = (uintptr_t)slab;
+       return ((va & 1) != 0);
+}
+
+static inline size_t
+malloc_large_size(struct uma_slab *slab)
+{
+       uintptr_t va;
+
+       va = (uintptr_t)slab;
+       return (va >> 1);
+}
 #endif /* _KERNEL */
 
 #else