--- a/kernel-open/nvidia/nv-vtophys.c.orig 2024-09-19 14:13:38.129627845 +0200 +++ a/kernel-open/nvidia/nv-vtophys.c 2024-09-19 14:14:35.462847222 +0200 @@ -29,7 +29,7 @@ NvU64 NV_API_CALL nv_get_kern_phys_address(NvU64 address) { /* direct-mapped kernel address */ - if (virt_addr_valid(address)) + if (virt_addr_valid((const void *) address)) return __pa(address); nv_printf(NV_DBG_ERRORS,