linux-kernel - Re: [PATCH v2] cpufreq: CPPC: Correct desired

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 13 Oct 2016 13:37:11 -0600
From:   "Prakash, Prashanth" <pprakash@...eaurora.org>
To:     Hoan Tran <hotran@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Al Stone <ahs3@...hat.com>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        lho@....com, Duc Dang <dhdang@....com>,
        Christopher Covington <cov@...eaurora.org>
Subject: Re: [PATCH v2] cpufreq: CPPC: Correct desired_perf calculation

On 10/13/2016 11:33 AM, Hoan Tran wrote:
> The desired_perf is an abstract performance number. Its value should
> be in the range of [lowest perf, highest perf] of CPPC.
> The correct calculation is
>   desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz
>
> And cppc_cpufreq_set_target() returns if desired_perf is exactly
> the same with the old perf.
>
> Signed-off-by: Hoan Tran <hotran@....com>
Reviewed-by: Prashanth Prakash <pprakash@...eaurora.org>

Hi Rafael,
Can you please pick this one for 4.9, as it is bug fix?

--
Thanks,
Prashanth