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
next prev parent reply other threads:[~2024-09-02 6:01 UTC|newest]
Thread overview: 5+ 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 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2024090250-reliably-ecard-3b58@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=len.brown@intel.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-pm@vger.kernel.org \
--cc=matthias.bgg@gmail.com \
--cc=pavel@ucw.cz \
--cc=rafael.j.wysocki@intel.com \
--cc=rafael@kernel.org \
--cc=stable@vger.kernel.org \
--cc=yenchia.chen@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox