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Date:   Tue, 1 Sep 2020 17:50:14 +0200
From:   peterz@infradead.org
To:     Lina Iyer <ilina@codeaurora.org>
Cc:     Ulf Hansson <ulf.hansson@linaro.org>,
        Naresh Kamboju <naresh.kamboju@linaro.org>, paulmck@kernel.org,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Saravana Kannan <saravanak@google.com>,
        open list <linux-kernel@vger.kernel.org>,
        linux-mmc <linux-mmc@vger.kernel.org>,
        lkft-triage@lists.linaro.org, rcu@vger.kernel.org,
        Linux PM <linux-pm@vger.kernel.org>,
        Anders Roxell <anders.roxell@linaro.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Rajendra Nayak <rnayak@codeaurora.org>,
        John Stultz <john.stultz@linaro.org>,
        Stephen Boyd <sboyd@kernel.org>,
        Lars Povlsen <lars.povlsen@microchip.com>,
        madhuparnabhowmik10@gmail.com,
        Viresh Kumar <viresh.kumar@linaro.org>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: WARNING: suspicious RCU usage - sdhci-pltfm: SDHCI platform and
 OF driver helper
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On Tue, Sep 01, 2020 at 09:44:17AM -0600, Lina Iyer wrote:
> > > > > > I could add RCU_NONIDLE for the calls to pm_runtime_put_sync_suspend()
> > > > > > and pm_runtime_get_sync() in psci_enter_domain_idle_state(). Perhaps
> > > > > > that's the easiest approach, at least to start with.

> I think this would be nice. This should also cover the case, where PM domain
> power off notification callbacks call trace function internally. Right?

That's just more crap for me to clean up later :-(

trace_*_rcuidle() and RCU_NONIDLE() need to die, not proliferate.