_PAGE_NONE        169 arch/xtensa/include/asm/pgtable.h #define PAGE_NONE	   __pgprot(_PAGE_NONE | _PAGE_USER)
_PAGE_NONE        257 arch/xtensa/include/asm/pgtable.h 	 || ((pte_val(pte) & _PAGE_ATTRIB_MASK) == _PAGE_NONE))