--- zzzz-none-000/linux-3.10.107/arch/openrisc/kernel/head.S	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/openrisc/kernel/head.S	2021-02-04 17:41:59.000000000 +0000
@@ -754,11 +754,6 @@
 
 /* ===============================================[ page table masks ]=== */
 
-/* bit 4 is used in hardware as write back cache bit. we never use this bit
- * explicitly, so we can reuse it as _PAGE_FILE bit and mask it out when
- * writing into hardware pte's
- */
-
 #define DTLB_UP_CONVERT_MASK  0x3fa
 #define ITLB_UP_CONVERT_MASK  0x3a