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SubjectRe: [PATCH v2 4/6] x86: Consolidate PCI_MMCONFIG configs
On Wed, Feb 28, 2018 at 05:45:37PM +0200, Andy Shevchenko wrote:
> On Wed, Feb 28, 2018 at 8:34 AM, Jan Kiszka <jan.kiszka@siemens.com> wrote:
> > From: Jan Kiszka <jan.kiszka@siemens.com>
> >
> > Not sure if those two worked by design or just by chance so far. In any
> > case, it's at least cleaner and clearer to express this in a single
> > config statement.

It would be nice if this were a complete statement of what the patch
does, but without the subject, it's not. E.g., as I'm composing this
response in an editor window, I can't see the subject, so it seems
incomplete.

> > Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> > ---
> > arch/x86/Kconfig | 9 +++------
> > 1 file changed, 3 insertions(+), 6 deletions(-)
> >
> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > index eb7f43f23521..63e85e7da12e 100644
> > --- a/arch/x86/Kconfig
> > +++ b/arch/x86/Kconfig
> > @@ -2641,8 +2641,9 @@ config PCI_DIRECT
> > depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC || PCI_GOMMCONFIG))
> >
> > config PCI_MMCONFIG
> > - def_bool y
> > - depends on X86_32 && PCI && (ACPI || SFI) && (PCI_GOMMCONFIG || PCI_GOANY)
> > + bool "Support mmconfig PCI config space access" if X86_64
> > + default y
> > + depends on PCI && (ACPI || SFI) && (PCI_GOMMCONFIG || PCI_GOANY || X86_64)
>
> Looking to the above context I would rather put it like
>
> depends on PCI && (ACPI || SFI) && (X86_64 || (PCI_GOANY || PCI_GOMMCONFIG))

The changelog doesn't point out any intended functional change, but I
think both these proposals add some new configs that previously could
not occur, e.g.,

CONFIG_X86_64=y
CONFIG_SFI=y
# CONFIG_ACPI is unset
CONFIG_PCI_MMCONFIG=y

If this is intended, the changelog should mention it.

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