> > Also this won't allow
> >
> > struct pci_driver {
> > ...
> > #ifdef CONFIG_PM
> > int (*suspend)(...);
> > int (*resume)(...);
> > #endif
> > ...
> > };
> >
> > which is good for a) space savings in CONFIG_PM=n case, and
> > b) making drivers care about CONFIG_PM=n users hard way aka compilation
> > failure.
>
> eh? Both versions will generate identical code.
I think his point was that by #ifdef-ing out the assignment to
.suspend/.resume, then the actual suspend/resume members of struct
pci_driver could be removed in the CONFIG_PM=n case -- which would
shrink sizeof (struct pci_driver).
- R.
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