Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / arch / x86 / mm / ioremap.c
index 04e1ad60c63a23a3527960a01cf6e2cff091d959..334e63ca7b2b468d096828cd56684604ca3ab0c4 100644 (file)
@@ -158,24 +158,14 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
        retval = reserve_memtype(phys_addr, (u64)phys_addr + size,
                                                prot_val, &new_prot_val);
        if (retval) {
-               pr_debug("Warning: reserve_memtype returned %d\n", retval);
+               printk(KERN_ERR "ioremap reserve_memtype failed %d\n", retval);
                return NULL;
        }
 
        if (prot_val != new_prot_val) {
-               /*
-                * Do not fallback to certain memory types with certain
-                * requested type:
-                * - request is uc-, return cannot be write-back
-                * - request is uc-, return cannot be write-combine
-                * - request is write-combine, return cannot be write-back
-                */
-               if ((prot_val == _PAGE_CACHE_UC_MINUS &&
-                    (new_prot_val == _PAGE_CACHE_WB ||
-                     new_prot_val == _PAGE_CACHE_WC)) ||
-                   (prot_val == _PAGE_CACHE_WC &&
-                    new_prot_val == _PAGE_CACHE_WB)) {
-                       pr_debug(
+               if (!is_new_memtype_allowed(phys_addr, size,
+                                           prot_val, new_prot_val)) {
+                       printk(KERN_ERR
                "ioremap error for 0x%llx-0x%llx, requested 0x%lx, got 0x%lx\n",
                                (unsigned long long)phys_addr,
                                (unsigned long long)(phys_addr + size),