Re: [PATCH v2 1/3] platform/x86/intel/tpmi: Add defines to get version information

From: Andy Shevchenko
Date: Wed Oct 04 2023 - 09:00:07 EST


On Tue, Oct 03, 2023 at 11:49:14AM -0700, Srinivas Pandruvada wrote:
> Add defines to get major and minor version from a TPMI version field
> value. This will avoid code duplication to convert in every feature
> driver. Also add define for invalid version field.

...

> +#define TPMI_VERSION_INVALID 0xff

I would make it clearer with (GENMASK(7, 5) | GENMASK(4, 0))
or even with specific masks defined and used in both cases:
#def

#define TPMI_MINVER_MASK GENMASK(4, 0)
#define TPMI_MAJVER_MASK GENMASK(7, 5)

#define TPMI_VERSION_INVALID (TPMI_MINVER_MASK | TPMI_MAJVER_MASK)

#define TPMI_MINOR_VERSION(val) FIELD_GET(TPMI_MINVER_MASK, val)
#define TPMI_MAJOR_VERSION(val) FIELD_GET(TPMI_MAJVER_MASK, val)

> +#define TPMI_MINOR_VERSION(val) FIELD_GET(GENMASK(4, 0), val)
> +#define TPMI_MAJOR_VERSION(val) FIELD_GET(GENMASK(7, 5), val)

--
With Best Regards,
Andy Shevchenko