linux-kernel - Re: [PATCH v1 1/1] serial: 8250

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Date:   Thu, 30 Jun 2022 09:56:11 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-serial <linux-serial@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Paul Cercueil <paul@...pouillou.net>
Subject: Re: [PATCH v1 1/1] serial: 8250_dw: Drop PM ifdeffery

On Thu, Jun 30, 2022 at 9:42 AM Ilpo Järvinen
<ilpo.jarvinen@...ux.intel.com> wrote:
>
> On Wed, 29 Jun 2022, Andy Shevchenko wrote:
>
> > Drop CONFIG_PM and CONFIG_PM_SLEEP ifdeffery while converting dw8250_pm_ops
> > to use new PM macros.
> >
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>
> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
>
> Not directily related to the patch itself but do you have any idea why
> 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros, deprecate old ones")
> didn't wrap RUNTIME_PM_OPS() pointers with pm_ptr()? I'm asking this
> because in SET_RUNTIME_PM_OPS() the callbacks are only created with
> #ifdef CONFIG_PM so I'd have expected RUNTIME_PM_OPS() to maintain that
> behavior but it didn't? Was it just an oversight that should be fixed?

I have had the same question, but I think it might be related to how
PM runtime functions when there is no respective configuration option
set.

+Cc: Rafael.

-- 
With Best Regards,
Andy Shevchenko