linux-kernel - Re: [PATCH v2] cpupower : Handle set and info subcommands correctly

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]

Message-ID: <2614b112-5e19-96dc-179b-8d4e3b8c8858@kernel.org>
Date:   Thu, 3 Oct 2019 08:38:53 -0600
From:   shuah <shuah@...nel.org>
To:     Abhishek Goel <huntbag@...ux.vnet.ibm.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     trenn@...e.com, ego@...ux.vnet.ibm.com, shuah <shuah@...nel.org>
Subject: Re: [PATCH v2] cpupower : Handle set and info subcommands correctly

On 9/13/19 2:07 AM, Abhishek Goel wrote:
> Cpupower tool has set and info options which are being used only by
> x86 machines. This patch removes support for these two subcommands
> from generic cpupower utility. Thus, these two subcommands will now be
> available only for intel.
> This removes the ambiguous error message while using set option in case
> of using non-intel systems.
> 
> Without this patch on a non-intel box:
> 
> root@...ntu:~# cpupower info
> System does not support Intel's performance bias setting
> 
> root@...ntu:~# cpupower set -b 10
> Error setting perf-bias value on CPU
> 
> With this patch on a non-intel box:
> 
> root@...ntu:~# cpupower info
> Supported commands are:
>          frequency-info
>          frequency-set
>          idle-info
>          idle-set
>          monitor
>          help
> 
> Same result for set subcommand.
> 
> This patch does not affect results on a intel box.
> 
> Signed-off-by: Abhishek Goel <huntbag@...ux.vnet.ibm.com>
> Acked-by: Thomas Renninger <trenn@...e.de>
> ---
> 
> changes from v1:
> 	Instead of bailing out early in set and info commands, in V2, we
> 	are cutting out support for these two commands for non-intel
> 	systems.

thanks. I will get this in for 5.4-rc3 veru likely. Definitely in 5.4

-- Shuah