Re: [PATCH] cpufreq: Report if CPU doesn't report boost technologies

[Rafael J. Wysocki]

On Wed, Feb 20, 2019 at 11:11 AM Erwan Velu <erwanaliasr1@xxxxxxxxx> wrote:
>
> There is some rare cases where CPB (and possibly IDA) are missing on processors.
> This is the case fixed by commit f7f3dc00f612 ("x86/cpu/AMD: Fix erratum 1076 (CPB bit)") and following.
>
> In such context, the boost status isn't reported by /sys/devices/system/cpu/cpufreq/boost.

So I'm not really sure why the extra message is needed.  It looks like
this message will always be printed (with debug output enabled) if the
current cpufreq driver is acpi-cpufreq and the boost attribute is not
present in sysfs, which only is the case if CPB/IDA aren't there.

Does it provide any additional information, then?