Re: [PATCH 2/2] spi: rpc-if: Remove CONFIG_PM_SLEEP ifdefery

[Geert Uytterhoeven]

Hi Pavel,

On Tue, Jan 5, 2021 at 11:42 AM Pavel Machek <pavel@xxxxxxx> wrote:
> > On Tue, Jan 5, 2021 at 12:40 AM Pavel Machek <pavel@xxxxxxx> wrote:
> > > > > > >                 .name   = "rpc-if-spi",
> > > > > > > -               .pm     = DEV_PM_OPS,
> > > > > > > +               .pm     = &rpcif_spi_pm_ops,
> > > >
> > > > > > You're aware rpcif_spi_pm_ops is now always referenced and thus emitted,
> > > > > > increasing kernel size by 92 bytes if CONFIG_PM_SLEEP=n?
> > > > > > This may matter for RZ/A SoCs running from internal SRAM.
> > > >
> > > > > Hmm didn't realise this would be an issue on RZ/A.
> > > >
> > > > > Mark, could you please drop this patch from your branch.
> > > >
> > > > Please send an incremental patch with an appropriate changelog.
> > >
> > > Let's fix this properly. I'm pretty sure we have some macros that can
> > > solve this without re-introducing the ifdefs...
> >
> > There's pm_ptr(), but it uses CONFIG_PM as a selector, not CONFIG_PM_SLEEP.
>
> Okay; so we could introduce pm_sleep_ptr().
>
> Or we could just put single #ifdef CONFIG_PM_SLEEP around the .pm
> assignment? That would be improvement on the original, and still
> result in the same binary, right?

Indeed.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds