On Thu, Jun 16, 2022 at 05:45:39AM +0000, Christophe Leroy wrote: > > +/* Note due to the way vm flags are laid out, the bits are XWR */ > > +pgprot_t protection_map[16] = { > > Was const previously, now back to non const ? Maybe due to a conflict > with linux/mm.h ? At least it should be __ro_after_init. Maybe we just need to duplicate vm_get_page_prot in all the architectures and thus avoid making protection_map global in a common header entirely. That certainly seems like the cleaner interface.