diff --git a/mm/Kconfig b/mm/Kconfig
index 7edf3c4c1252b8a2cf8efb90af7de6dcd5810001..0434aef47b44c1452f29917decdc1809cd26a1e7 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -638,7 +638,7 @@ config ZSMALLOC
 
 config PGTABLE_MAPPING
 	bool "Use page table mapping to access object in zsmalloc"
-	depends on ZSMALLOC
+	depends on ZSMALLOC=y
 	help
 	  By default, zsmalloc uses a copy-based object mapping method to
 	  access allocations that span two pages. However, if a particular
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 1648d7f14a475e162c07b8c0087057e1c6fb40d1..1f6a8b1eae5fe22d6fb1543fc015c67d76e2a415 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1927,7 +1927,6 @@ void unmap_kernel_range(unsigned long addr, unsigned long size)
 	vunmap_page_range(addr, end);
 	flush_tlb_kernel_range(addr, end);
 }
-EXPORT_SYMBOL_GPL(unmap_kernel_range);
 
 int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page **pages)
 {
@@ -1939,7 +1938,6 @@ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page **pages)
 
 	return err > 0 ? 0 : err;
 }
-EXPORT_SYMBOL_GPL(map_vm_area);
 
 static void setup_vmalloc_vm(struct vm_struct *vm, struct vmap_area *va,
 			      unsigned long flags, const void *caller)