On Fri, Jun 24, 2022 at 10:13:13AM +0530, Anshuman Khandual wrote: > vm_get_page_prot(), in order for it to be reused on platforms that do not > require custom implementation. Finally, ARCH_HAS_VM_GET_PAGE_PROT can just > be dropped, as all platforms now define and export vm_get_page_prot(), via > looking up a private and static protection_map[] array. protection_map[] > data type is the following for all platforms without deviation (except the > powerpc one which is shared between 32 and 64 bit platforms), keeping it > unchanged for now. > > static pgprot_t protection_map[16] __ro_after_init On most architectures this should be const now, only very few ever modify it.