[PATCH v3 12/29] dm: core: Add basic ACPI support

Andy Shevchenko
2020-04-03T11:35:56Z

On Mon, Mar 30, 2020 at 05:12:48PM -0600, Simon Glass wrote:
> ACPI (Advanced Configuration and Power Interface) is a standard for
> specifying information about a platform. It is a little like device
> tree but the bindings are part of the specification and it supports an
> interpreted bytecode language.
>
> Driver model does not use ACPI for U-Boot's configuration, but it is
> convenient to have it support generation of ACPI tables for passing to
> Linux, etc.
>
> As a starting point, add an optional set of ACPI operations to each
> device. Initially only a single operation is available, to obtain the
> ACPI name for the device. More operations are added later.
>
> Enable ACPI for sandbox to ensure build coverage and so that we can add
> tests.

...

> +int acpi_copy_name(char *out_name, const char *name)
> +{

> + strncpy(out_name, name, ACPI_NAME_MAX);

memcpy()?

> + out_name[ACPI_NAME_LEN] = '\0';

I dunno if compiler is clever enough to catch this and avoid any warnings.

Also it seems above should also have _LEN, and not _MAX.

> + return 0;
> +}

--
With Best Regards,
Andy Shevchenko