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Diffstat (limited to 'arch/x86/pci/i386.c')
-rw-r--r--arch/x86/pci/i386.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index f884740da31..5ead808dd70 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -314,17 +314,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return retval;
if (flags != new_flags) {
- /*
- * Do not fallback to certain memory types with certain
- * requested type:
- * - request is uncached, return cannot be write-back
- * - request is uncached, return cannot be write-combine
- * - request is write-combine, return cannot be write-back
- */
- if ((flags == _PAGE_CACHE_UC_MINUS &&
- (new_flags == _PAGE_CACHE_WB)) ||
- (flags == _PAGE_CACHE_WC &&
- new_flags == _PAGE_CACHE_WB)) {
+ if (!is_new_memtype_allowed(flags, new_flags)) {
free_memtype(addr, addr+len);
return -EINVAL;
}