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From:   Arnd Bergmann <arnd@arndb.de>
Date:   Sun, 27 Feb 2022 18:51:38 +0100
Message-ID: <CAK8P3a3=5uud3jd7N3FEAnaLapX-0OYaiscBFNEQm2hzkTmj7g@mail.gmail.com>
Subject: Re: [PATCH -next] misc: rtsx: fix build for CONFIG_PM not set
To:     Paul Cercueil <paul@crapouillou.net>
Cc:     Arnd Bergmann <arnd@arndb.de>,
        Randy Dunlap <rdunlap@infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Wei WANG <wei_wang@realsil.com.cn>,
        Kai-Heng Feng <kai.heng.feng@canonical.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Jonathan Cameron <Jonathan.Cameron@huawei.com>
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On Sun, Feb 27, 2022 at 6:46 PM Paul Cercueil <paul@crapouillou.net> wrote:
> Le dim., févr. 27 2022 at 18:30:16 +0100, Arnd Bergmann
>
> There could be a DEFINE_DEV_PM_OPS(), but I don't think that's really
> needed - you can very well declare your struct dev_pm_ops without using
> one of these macros. Just make sure to use the SYSTEM_SLEEP_PM_OPS /
> RUNTIME_PM_OPS macros for the callbacks and pm_ptr() for the device.pm
> pointer.

Ah, of course, so it comes down to
s/SET_SYSTEM_SLEEP_PM_OPS/SYSTEM_SLEEP_PM_OPS/ while
removing all the #ifdef an __maybe_unused annotations. The pm_ptr()
in driver.pm makes this slightly more optimized AFAICT, but has no
effect on behavior, right?

       Arnd