linux-kernel - Re: [PATCH v2] platform/x86: dell-smbios-wmi: Disable userspace interface if missing hotfix

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Message-ID: <20171117203922.GG22250@fury>
Date:   Fri, 17 Nov 2017 12:39:22 -0800
From:   Darren Hart <dvhart@...radead.org>
To:     Mario Limonciello <mario.limonciello@...l.com>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v2] platform/x86: dell-smbios-wmi: Disable userspace
 interface if missing hotfix

On Thu, Nov 16, 2017 at 10:13:12PM -0600, Mario Limonciello wrote:
> The Dell SMBIOS WMI interface will fail for some more complex calls unless
> a WMI hotfix has been included.  Most platforms have this fix available in
> a maintenance BIOS release.  In the case the driver is loaded on a
> platform without this fix, disable the userspace interface.
> 
> A hotfix indicator is present in the dell-wmi-descriptor that represents
> whether or not more complex calls will work properly.
> 
> "Simple" calls such as those used by dell-laptop and dell-wmi will continue
> to work properly so dell-smbios-wmi should not be blocked from binding and
> being used as the dell-smbios dispatcher.
> 
> Suggested-by: Girish Prakash <girish.prakash@...l.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@...l.com>

Queued up, thanks Mario.
-- 
Darren Hart
VMware Open Source Technology Center