RE: [PATCH v3 2/8] platform/x86: dell-smbios: Introduce a WMI-ACPI interface

From: Mario.Limonciello
Date: Sat Sep 30 2017 - 15:57:11 EST


> -----Original Message-----
> From: Pali RohÃr [mailto:pali.rohar@xxxxxxxxx]
> Sent: Saturday, September 30, 2017 2:16 AM
> To: Darren Hart <dvhart@xxxxxxxxxxxxx>
> Cc: Limonciello, Mario <Mario_Limonciello@xxxxxxxx>; Andy Shevchenko
> <andy.shevchenko@xxxxxxxxx>; LKML <linux-kernel@xxxxxxxxxxxxxxx>;
> platform-driver-x86@xxxxxxxxxxxxxxx; Andy Lutomirski <luto@xxxxxxxxxx>;
> quasisec@xxxxxxxxxx
> Subject: Re: [PATCH v3 2/8] platform/x86: dell-smbios: Introduce a WMI-ACPI
> interface
>
> On Saturday 30 September 2017 02:51:27 Darren Hart wrote:
> > > +DELL SMBIOS DRIVER
> > > +M: Pali RohÃr <pali.rohar@xxxxxxxxx>
> > > +M: Mario Limonciello <mario.limonciello@xxxxxxxx>
> > > +S: Maintained
> > > +F: drivers/platform/x86/dell-smbios.*
> >
> > Pali, do you agree with this?
>
> Yes, no problem.
>
> > > -static int __init dell_smbios_init(void)
> > > +static int dell_smbios_wmi_probe(struct wmi_device *wdev)
> > > +{
> > > + /* no longer need the SMI page */
> > > + free_page((unsigned long)buffer);
> > > +
> > > + /* WMI buffer should be 32k */
> > > + buffer = (void *)__get_free_pages(GFP_KERNEL, 3);
> >
> > Assuming PAGE_SIZE here (I know, this driver, this architecture,
> > etc...). But, please use get_order() to determine number of pages
> > from a linear size:
> >
> > __get_free_pages(GFP_KERNEL, get_order(32768));
>
> I agree that specifying size (instead of count) explicitly lead to more
> readable code.
>

Alright will adjust.