1 files changed, 1 insertions, 6 deletions

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index e78cd0ec2bcf..81fb75344cd3 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -355,9 +355,6 @@ static int free_ram_pages_type(u64 start, u64 end)
  * - _PAGE_CACHE_UC_MINUS
  * - _PAGE_CACHE_UC
  *
- * req_type will have a special case value '-1', when requester want to inherit
- * the memory type from mtrr (if WB), existing PAT, defaulting to UC_MINUS.
- *
  * If new_type is NULL, function will return an error if it cannot reserve the
  * region with req_type. If new_type is non-NULL, function will return
  * available type in new_type in case of no error. In case of any error
@@ -377,9 +374,7 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
         if (!pat_enabled) {
                 /* This is identical to page table setting without PAT */
                 if (new_type) {
-                        if (req_type == -1)
-                                *new_type = _PAGE_CACHE_WB;
-                        else if (req_type == _PAGE_CACHE_WC)
+                        if (req_type == _PAGE_CACHE_WC)
                                 *new_type = _PAGE_CACHE_UC_MINUS;
                         else
                                 *new_type = req_type & _PAGE_CACHE_MASK;