Le 14/06/2022 à 08:09, Wenhu Wang a écrit : >>> + >>> +static const struct vm_operations_struct uio_cache_sram_vm_ops = { >>> +#ifdef CONFIG_HAVE_IOREMAP_PROT >> >> Same here. >> > > I tried to eliminate it in mainline > See: [PATCH v2] mm: eliminate ifdef of HAVE_IOREMAP_PROT in .c files > https://lkml.org/lkml/2022/6/10/695 > >>> + .access = generic_access_phys, >>> +#endif >>> +};
Another solution is to do: static const struct vm_operations_struct uio_cache_sram_vm_ops = { .access = IS_ENABLED(CONFIG_HAVE_IOREMAP_PROT) ? generic_access_phys : NULL, }; Christophe