1 files changed, 12 insertions, 7 deletions

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 3ba6e0608c55..be1ef574ce9a 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -91,13 +91,6 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
                 return (__force void __iomem *)phys_to_virt(phys_addr);
 
         /*
-         * Check if the request spans more than any BAR in the iomem resource
-         * tree.
-         */
-        WARN_ONCE(iomem_map_sanity_check(phys_addr, size),
-                  KERN_INFO "Info: mapping multiple BARs. Your kernel is fine.");
-
-        /*
          * Don't allow anybody to remap normal RAM that we're using..
          */
         last_pfn = last_addr >> PAGE_SHIFT;
@@ -170,6 +163,13 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
         ret_addr = (void __iomem *) (vaddr + offset);
         mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr);
 
+        /*
+         * Check if the request spans more than any BAR in the iomem resource
+         * tree.
+         */
+        WARN_ONCE(iomem_map_sanity_check(unaligned_phys_addr, unaligned_size),
+                  KERN_INFO "Info: mapping multiple BARs. Your kernel is fine.");
+
         return ret_addr;
 err_free_area:
         free_vm_area(area);
@@ -362,6 +362,11 @@ static inline pte_t * __init early_ioremap_pte(unsigned long addr)
         return &bm_pte[pte_index(addr)];
 }
 
+bool __init is_early_ioremap_ptep(pte_t *ptep)
+{
+        return ptep >= &bm_pte[0] && ptep < &bm_pte[PAGE_SIZE/sizeof(pte_t)];
+}
+
 static unsigned long slot_virt[FIX_BTMAPS_SLOTS] __initdata;
 
 void __init early_ioremap_init(void)