diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index cc5ccc415cc01..fd3df0ddb4d41 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -63,8 +63,6 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
 		    !PageReserved(pfn_to_page(start_pfn + i)))
 			return 1;
 
-	WARN_ONCE(1, "ioremap on RAM pfn 0x%lx\n", start_pfn);
-
 	return 0;
 }
 
@@ -131,8 +129,11 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 		pfn      = phys_addr >> PAGE_SHIFT;
 		last_pfn = last_addr >> PAGE_SHIFT;
 		if (walk_system_ram_range(pfn, last_pfn - pfn + 1, NULL,
-					  __ioremap_check_ram) == 1)
+					  __ioremap_check_ram) == 1) {
+			WARN_ONCE(1, "ioremap on RAM at 0x%llx - 0x%llx\n",
+					phys_addr, last_addr);
 			return NULL;
+		}
 	}
 	/*
 	 * Mappings have to be page-aligned