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SubjectRe: [PATCH v4 11/14] platform/x86: dell-smbios-wmi: Add new WMI dispatcher driver
On Thu, Oct 05, 2017 at 03:12:46PM +0000, Mario.Limonciello@dell.com wrote:

> > > diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> > > index f0b97cb8e449..ef597f440d2e 100644
> > > --- a/drivers/platform/x86/Kconfig
> > > +++ b/drivers/platform/x86/Kconfig
> > > @@ -93,13 +93,27 @@ config ASUS_LAPTOP
> > >
> > > config DELL_SMBIOS
> > > tristate "Dell SMBIOS calling interface"
> > > - depends on DELL_SMBIOS_SMM
> > > + depends on DELL_SMBIOS_WMI || DELL_SMBIOS_SMM
> > > ---help---
> > > This module provides common functions for kernel modules using
> > > Dell SMBIOS.
> >
> > You use select DELL_SMBIOS below, which implies this modules should be
> > invisible. Indeed, there is no need for the user to see the DELL_SMBIOS
> > option at all now, they can select DELL_SMBIOS_WMI and or
> > DELL_SMBIOS_SMM, no need to keep the DELL_SMBIOS option.
> >
> So when you say make invisible, does that mean that it should never show
> up in make menuconfig and just be implicitly selected?

Right. It shouldn't have a prompt.

>
> When I was adjusting Kconfig for your other feedback I noticed setting something
> to "select $DRIVER" that invisible driver does show up just can't be turned off.
> Is that what you mean?

No, I mean eliminate the menu entry by eliminating the prompt.

>
> > > diff --git a/drivers/platform/x86/dell-smbios-wmi.c
> > b/drivers/platform/x86/dell-smbios-wmi.c
> > > +static void __init parse_b1_table(const struct dmi_header *dm)
> > > +{
> > > + struct misc_bios_flags_structure *flags =
> > > + container_of(dm, struct misc_bios_flags_structure, header);
> > > +
> > > + /* 4 bytes header, and one word of flags */
> >
> > Assuming specifically 8 bytes of flags, independent of arch?
>
> Well platform/drivers/*x86*...

I was thinking 32b vs 64b x86 which have a different definition of word size.

(and depending on context, even that changes)

So... "8 bytes" ? I presume this is a fixed length independent of word size?

--
Darren Hart
VMware Open Source Technology Center

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