On Fri Jun 6, 2025 at 7:06 PM CEST, Igor Korotin wrote:
> +impl DeviceId {
> + const ACPI_ID_LEN: usize = 16;
> +
> + /// Create a new device id from an ACPI 'id' string.
> + pub const fn new(id: &'static CStr) -> Self {
> + assert!(id.len() <= Self::ACPI_ID_LEN, "ID exceeds 16 bytes");
> + let src = id.as_bytes_with_nul();
> + // Replace with `bindings::acpi_device_id::default()` once stabilized for `const`.
> + // SAFETY: FFI type is valid to be zero-initialized.
> + let mut acpi: bindings::acpi_device_id = unsafe { core::mem::zeroed() };
This can be made safe using this series:
https://lore.kernel.org/all/20250523145125.523275-1-lossin@xxxxxxxxxx
---
Cheers,
Benno
> + let mut i = 0;
> + while i < src.len() {
> + acpi.id[i] = src[i];
> + i += 1;
> + }
> +
> + Self(acpi)
> + }
> +}
