> -----Original Message----- > From: Darren Hart [mailto:dvhart@xxxxxxxxxxxxx] > Sent: Friday, November 17, 2017 2:39 PM > To: Limonciello, Mario <Mario_Limonciello@xxxxxxxx> > Cc: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>; LKML <linux- > kernel@xxxxxxxxxxxxxxx>; platform-driver-x86@xxxxxxxxxxxxxxx > 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@xxxxxxxx> > > Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxxx> > > Queued up, thanks Mario. Darren, even though this came after the merge windows opened considering this restricts the SMBIOS interface from some platform/firmware combinations it shouldn't be offered, do you think this can be included with a future 4.15 RCx PR so it can land with the rest of the series rather than targeted for 4.16? I'd hate to get stuck in a situation that an interface deemed "broken" gets offered to people it shouldn't.
