From: sashiko-bot@kernel.org
To: "Jian Zhang" <zhangjian.3032@bytedance.com>
Cc: linux-hwmon@vger.kernel.org
Subject: Re: [PATCH] hwmon: peci: dimmtemp: Retry unstable DIMM mask detection
Date: Fri, 18 Sep 2026 03:27:15 +0000 [thread overview]
Message-ID: <20260918032715.BA5721F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260918031831.1937973-1-zhangjian.3032@bytedance.com>
> Add a stable DIMM mask check around PECI DIMM discovery.
>
> During host DIMM initialization, PECI can answer the DIMM temperature
> configuration reads before every DIMM has reached a stable ready state.
> There is no separate all-DIMM-ready signal for this driver to wait on,
> so a single early read can capture only part of the populated DIMM mask.
> Retrying the mask check avoids locking that transient state into the
> hwmon device layout.
>
> The first successful scan is saved, and the driver immediately scans
> again before registering hwmon channels. If the two masks differ, the
> driver returns -EAGAIN so the existing delayed detection work can retry
> instead of exposing a partial channel set.
>
> Signed-off-by: Jian Zhang <zhangjian.3032@bytedance.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260918031831.1937973-1-zhangjian.3032@bytedance.com?part=1
next prev parent reply other threads:[~2026-09-18 3:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-18 3:18 [PATCH] hwmon: peci: dimmtemp: Retry unstable DIMM mask detection Jian Zhang
2026-09-18 3:27 ` sashiko-bot [this message]
2026-09-18 16:59 ` Guenter Roeck
2026-09-20 2:59 ` Jian Zhang
2026-09-25 20:05 ` Winiarska, Iwona
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