From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Manivannan Sadhasivam <mani@kernel.org>,
Jeff Hugo <jeff.hugo@oss.qualcomm.com>,
Youssef Samir <quic_yabdulra@quicinc.com>,
Matthew Leung <quic_mattleun@quicinc.com>,
Alexander Wilhelm <alexander.wilhelm@westermo.com>,
Kunwu Chan <chentao@kylinos.cn>,
Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>,
Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>,
Yan Zhen <yanzhen@vivo.com>, Sujeev Dias <sdias@codeaurora.org>,
Siddartha Mohanadoss <smohanad@codeaurora.org>,
mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel@collabora.com,
stable@vger.kernel.org
Subject: Re: [PATCH v2 3/3] bus: mhi: keep device context through suspend cycles
Date: Wed, 16 Jul 2025 11:35:25 +0200 [thread overview]
Message-ID: <2025071617-munchkin-staring-70c9@gregkh> (raw)
In-Reply-To: <20250715132509.2643305-4-usama.anjum@collabora.com>
On Tue, Jul 15, 2025 at 06:25:09PM +0500, Muhammad Usama Anjum wrote:
> Don't deinitialize the device context while going into suspend or
> hibernation cycles. Otherwise the resume may fail if at resume time, the
> memory pressure is high and no dma memory is available. At resume, only
> reset the read/write ring pointers as rings may have stale data.
Same here, don't do this.
thanks,
greg k-h
next prev parent reply other threads:[~2025-07-16 9:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-15 13:25 [PATCH v2 0/3] bus: mhi: keep dma buffers through suspend/hibernation cycles Muhammad Usama Anjum
2025-07-15 13:25 ` [PATCH v2 1/3] bus: mhi: host: keep bhi buffer through suspend cycle Muhammad Usama Anjum
2025-07-16 3:41 ` Baochen Qiang
2025-07-16 9:34 ` Greg Kroah-Hartman
2025-07-17 10:00 ` Muhammad Usama Anjum
2025-07-17 11:50 ` Greg Kroah-Hartman
2025-07-15 13:25 ` [PATCH v2 2/3] bus: mhi: host: keep bhie " Muhammad Usama Anjum
2025-07-16 9:35 ` Greg Kroah-Hartman
2025-07-15 13:25 ` [PATCH v2 3/3] bus: mhi: keep device context through suspend cycles Muhammad Usama Anjum
2025-07-16 9:35 ` Greg Kroah-Hartman [this message]
2025-07-16 3:36 ` [PATCH v2 0/3] bus: mhi: keep dma buffers through suspend/hibernation cycles Baochen Qiang
2025-07-17 10:01 ` Muhammad Usama Anjum
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=2025071617-munchkin-staring-70c9@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=alexander.wilhelm@westermo.com \
--cc=chentao@kylinos.cn \
--cc=jacek.lawrynowicz@linux.intel.com \
--cc=jeff.hugo@oss.qualcomm.com \
--cc=kernel@collabora.com \
--cc=krishna.chundru@oss.qualcomm.com \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mani@kernel.org \
--cc=mhi@lists.linux.dev \
--cc=quic_mattleun@quicinc.com \
--cc=quic_yabdulra@quicinc.com \
--cc=sdias@codeaurora.org \
--cc=smohanad@codeaurora.org \
--cc=stable@vger.kernel.org \
--cc=usama.anjum@collabora.com \
--cc=yanzhen@vivo.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;
as well as URLs for NNTP newsgroup(s).