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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Yenchia Chen <yenchia.chen@mediatek.com>
Cc: stable@vger.kernel.org,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: Re: [PATCH 5.15 1/1] PM: sleep: Restore asynchronous device resume optimization
Date: Mon, 2 Sep 2024 08:00:08 +0200	[thread overview]
Message-ID: <2024090250-reliably-ecard-3b58@gregkh> (raw)
In-Reply-To: <20240902031047.9865-2-yenchia.chen@mediatek.com>

On Mon, Sep 02, 2024 at 11:10:45AM +0800, Yenchia Chen wrote:
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
> 
> Before commit 7839d0078e0d ("PM: sleep: Fix possible deadlocks in core
> system-wide PM code"), the resume of devices that were allowed to resume
> asynchronously was scheduled before starting the resume of the other
> devices, so the former did not have to wait for the latter unless
> functional dependencies were present.
> 
> Commit 7839d0078e0d removed that optimization in order to address a
> correctness issue, but it can be restored with the help of a new device
> power management flag, so do that now.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
> Signed-off-by: yenchia.chen <yenchia.chen@mediatek.com>

Please sign off using your name, not your email alias.

Also, what git id is this?

thanks,

greg k-h


  parent reply	other threads:[~2024-09-02  6:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-02  3:10 [PATCH 5.15 0/1] pm, restore async device resume optimization Yenchia Chen
2024-09-02  3:10 ` [PATCH 5.15 1/1] PM: sleep: Restore asynchronous " Yenchia Chen
2024-09-02  3:12   ` kernel test robot
2024-09-02  6:00   ` Greg Kroah-Hartman [this message]
2024-09-02  9:04     ` [PATCH 5.15 v2] " Yenchia Chen
2024-09-02  6:01 ` [PATCH 5.15 0/1] pm, restore async " Greg Kroah-Hartman
2024-09-02 12:37   ` Yenchia Chen

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