[PATCH v2 5/5] powerpc/configs: Disable SCOM_DEBUGFS in powernv_defconfig

[Oliver]

On Thu, May 9, 2019 at 3:38 PM Nicholas Piggin <npiggin at gmail.com> wrote:
>
> Andrew Donnellan's on May 9, 2019 3:11 pm:
> > SCOM_DEBUGFS is really not needed for anything other than low-level
> > hardware debugging.
> >
> > opal-prd uses its own interface (/dev/prd) for SCOM access, so it doesn't
> > need SCOM_DEBUGFS.
> >
> > At some point in the future we'll introduce a debug config fragment where
> > this can go instead.
>
> That doesn't really explain why you want to disable it. It is useful
> for low level hardware debugging, I added it.
>
> obscurity^Wsecurity?

Yeah... If you're building powernv_defconfig then the odds are pretty
high that you'll want scom access.

>
> >
> > Signed-off-by: Andrew Donnellan <ajd at linux.ibm.com>
> > ---
> > v1->v2:
> > - new patch
> > ---
> >  arch/powerpc/configs/powernv_defconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig
> > index ef2ef98d3f28..d5a6608cb2e0 100644
> > --- a/arch/powerpc/configs/powernv_defconfig
> > +++ b/arch/powerpc/configs/powernv_defconfig
> > @@ -38,7 +38,7 @@ CONFIG_MODULE_UNLOAD=y
> >  CONFIG_MODVERSIONS=y
> >  CONFIG_MODULE_SRCVERSION_ALL=y
> >  CONFIG_PARTITION_ADVANCED=y
> > -CONFIG_SCOM_DEBUGFS=y
> > +# CONFIG_SCOM_DEBUGFS is not set
> >  CONFIG_OPAL_PRD=y
> >  CONFIG_PPC_MEMTRACE=y
> >  # CONFIG_PPC_PSERIES is not set
> > --
> > 2.20.1
> >
> >