linux-kernel - RE: RFC: WMI Enhancements

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Date:   Tue, 18 Apr 2017 14:08:51 +0000
From:   <Mario.Limonciello@...l.com>
To:     <andriy.shevchenko@...ux.intel.com>, <pali.rohar@...il.com>,
        <hdegoede@...hat.com>
CC:     <kernel@...pniu.pl>, <dvhart@...radead.org>, <rjw@...ysocki.net>,
        <len.brown@...el.com>, <corentin.chary@...il.com>,
        <luto@...nel.org>, <linux-kernel@...r.kernel.org>,
        <platform-driver-x86@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: RE: RFC: WMI Enhancements

> -----Original Message-----
> From: Andy Shevchenko [mailto:andriy.shevchenko@...ux.intel.com]
> Sent: Tuesday, April 18, 2017 2:37 AM
> To: Limonciello, Mario <Mario_Limonciello@...l.com>; pali.rohar@...il.com;
> hdegoede@...hat.com
> Cc: kernel@...pniu.pl; dvhart@...radead.org; rjw@...ysocki.net;
> len.brown@...el.com; corentin.chary@...il.com; luto@...nel.org; linux-
> kernel@...r.kernel.org; platform-driver-x86@...r.kernel.org; linux-
> pm@...r.kernel.org
> Subject: Re: RFC: WMI Enhancements
> 
> On Thu, 2017-04-13 at 15:40 +0000, Mario.Limonciello@...l.com wrote:
> > > libsmbios would benefit.
> > >
> > > Really libsmbios matters here? Hans (added to thread) wrote that
> > > libsmbios is
> > > a relic, something of ages long gone by and a normal user should
> > > never use it.
> > >
> >
> > A normal user shouldn't be using it directly, but libsmbios is used by
> > a few open
> > source tools as a dependency.  It's also used in many Dell
> > manageability tools.
> >
> 
> Shouldn't tools evolve to use newer interfaces (while keeping
> compatibility with old kernels)?

Yes.  If a WMI userspace interface does end up being the outcome of
this thread, I'll push the relevant folks maintaining those tools to switch
over so that dcdbas can be marked deprecated and only in use for older
kernels.