diff --git a/mm/Kconfig b/mm/Kconfig
index 7ebd52dc1e40517aa114bb7c1296470dac7e5fcf..dddeb30d645e31fe02a255315ff2cdb62af51e6f 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -617,7 +617,7 @@ 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 5f14a7d294cfe1ccea5134198aa1e747daf95d7b..66b0a7d03b2882093089e17228327300fd85c6b5 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)