[PATCH v4 7/9] powerpc/eeh: Add bdfn field to eeh_dev

[Oliver O'Halloran]

On Thu, Aug 8, 2019 at 5:05 PM Jordan Niethe <jniethe5 at gmail.com> wrote:
>
> On Wed, 2019-08-07 at 13:44 +1000, Sam Bobroff wrote:
> > From: Oliver O'Halloran <oohall at gmail.com>
> >
> > Preparation for removing pci_dn from the powernv EEH code. The only
> > thing we really use pci_dn for is to get the bdfn of the device for
> > config space accesses, so adding that information to eeh_dev reduces
> > the need to carry around the pci_dn.
> >
> > Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
> > [SB: Re-wrapped commit message, fixed whitespace damage.]
> > Signed-off-by: Sam Bobroff <sbobroff at linux.ibm.com>
> > ---
> >  arch/powerpc/include/asm/eeh.h     | 2 ++
> >  arch/powerpc/include/asm/ppc-pci.h | 2 ++
> >  arch/powerpc/kernel/eeh_dev.c      | 2 ++
> >  3 files changed, 6 insertions(+)
> >
> > diff --git a/arch/powerpc/include/asm/eeh.h
> > b/arch/powerpc/include/asm/eeh.h
> > index 7f9404a0c3bb..bbe0798f6624 100644
> > --- a/arch/powerpc/include/asm/eeh.h
> > +++ b/arch/powerpc/include/asm/eeh.h
> > @@ -121,6 +121,8 @@ static inline bool eeh_pe_passed(struct eeh_pe
> > *pe)
> >  struct eeh_dev {
> >       int mode;                       /* EEH mode                     */
> >       int class_code;                 /* Class code of the device
> > */
> > +     int bdfn;                       /* bdfn of device (for cfg ops) */
> > +     struct pci_controller *controller;
>
> The other members of the structure get a comment, maybe it would be
> more consistant if this one did too?

At some point we need to go through all the EEH documentation /
comments and get rid of everything that is not useful or just straight
up wrong. The comments here are in-offensive, but they mostly just
repeat the information in the variable name so it's hard to see the
value.