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From: Pavel Machek <pavel@ucw.cz>
To: Saravana Kannan <saravanak@google.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <len.brown@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Marek Vasut <marex@denx.de>,
	Bird@google.com, Tim <Tim.Bird@sony.com>,
	kernel-team@android.com, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/5] PM: sleep: Fix runtime PM issue in dpm_resume()
Date: Fri, 14 Mar 2025 21:47:33 +0100	[thread overview]
Message-ID: <Z9SV5UymVcuUkSE1@duo.ucw.cz> (raw)
In-Reply-To: <20241114220921.2529905-2-saravanak@google.com>

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Hi!

> Some devices might have their is_suspended flag set to false. In these
> cases, dpm_resume() should skip doing anything for those devices.
> However, runtime PM enable and a few others steps are done before
> checking for this flag. Fix it so that we do things in the right order.
> 
> Signed-off-by: Saravana Kannan <saravanak@google.com>
> ---
>  drivers/base/power/main.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
> index 4a67e83300e1..86e51b9fefab 100644
> --- a/drivers/base/power/main.c
> +++ b/drivers/base/power/main.c
> @@ -913,6 +913,9 @@ static void device_resume(struct device *dev, pm_message_t state, bool async)
>  	if (dev->power.syscore)
>  		goto Complete;
>  
> +	if (!dev->power.is_suspended)
> +		goto Unlock;
> +

This needs to be goto Complete, right?
								Pavel
-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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  parent reply	other threads:[~2025-03-14 20:54 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-14 22:09 [PATCH v1 0/5] Optimize async device suspend/resume Saravana Kannan
2024-11-14 22:09 ` [PATCH v1 1/5] PM: sleep: Fix runtime PM issue in dpm_resume() Saravana Kannan
2024-11-16  7:43   ` Greg Kroah-Hartman
2024-11-16 21:06     ` Saravana Kannan
2024-12-04 12:53   ` Rafael J. Wysocki
2025-03-11 10:47     ` Rafael J. Wysocki
2025-03-13  1:49       ` Saravana Kannan
2025-03-13 10:58         ` Rafael J. Wysocki
2025-03-14 20:47   ` Pavel Machek [this message]
2025-03-14 20:49     ` Saravana Kannan
2024-11-14 22:09 ` [PATCH v1 2/5] PM: sleep: Remove unnecessary mutex lock when waiting on parent Saravana Kannan
2024-12-02 20:11   ` Rafael J. Wysocki
2024-12-02 20:16     ` Rafael J. Wysocki
2024-12-02 20:46       ` Saravana Kannan
2024-12-02 21:14         ` Rafael J. Wysocki
2024-12-02 23:27           ` Saravana Kannan
2024-12-04 12:21             ` Rafael J. Wysocki
2024-11-14 22:09 ` [PATCH v1 3/5] PM: sleep: Add helper functions to loop through superior/subordinate devs Saravana Kannan
2024-11-14 22:09 ` [PATCH v1 4/5] PM: sleep: Do breadth first suspend/resume for async suspend/resume Saravana Kannan
2025-03-11 11:25   ` Geert Uytterhoeven
2024-11-14 22:09 ` [PATCH v1 5/5] PM: sleep: Spread out async kworker threads during dpm_resume*() phases Saravana Kannan
2024-11-15  5:25   ` Saravana Kannan
2024-11-15  9:25     ` Geert Uytterhoeven
2024-11-15 15:30     ` Vincent Guittot
2024-11-15 16:12   ` Vincent Guittot
2024-11-15 18:33     ` Saravana Kannan
2024-11-17  0:34   ` kernel test robot
2024-11-17  1:17   ` kernel test robot
2024-11-17 13:34   ` kernel test robot
2024-11-18  9:52   ` Christian Loehle
2024-11-18 17:18     ` Saravana Kannan
2024-11-19  4:04 ` [PATCH v1 0/5] Optimize async device suspend/resume Saravana Kannan
2024-11-19  9:51   ` Greg Kroah-Hartman

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