From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=220.197.31.5 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793163020; b=IDcQ/k9EkAAgmd2TCMyPQyoHuGkdwluihWBoDbDwxX32hO20CKy4WeQoJFeFQSBQ5koB 1yKhGjH/KkIIapwGGINTrUCbAVG0TqhDEtNoNpzg8XMOtCwGP3KPM2ml+ozLY5d5RKJ+g Z3DWrB+H+PKYvmd4zSmA95cbAIAi56svDO14XI/7WGqxzSCOr5tBGGMaMNF3gUSdk5k9d m+rzMiEw4OLobSjkbvV8e0X2RCT4cxb54Vnt3hrIFGTO/7lqWd51V1sFt1oKIQRsPhjlI wM8Lri45yIezpBQj/iO7ztuvjo0A+An74Xx9miExKhAbZAmarPyDWZm1g5+89VH+/Jg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793163020; h=DMARC-Filter:DKIM-Signature:Received:From:To:Subject:Date:Message-Id: X-Mailer:MIME-Version:Content-Transfer-Encoding:X-CM-TRANSID: X-Coremail-Antispam:X-CM-SenderInfo; bh=5eX6ZERtxMma6IIiwk4zjHSJGCnTW5TdkQ89tZL/8dM=; b=GmxtOGfyUj5pCCr4aqR0JioNiimFurOzK9YRtRlglGWJpfIKgJ987Fj/+EPj6frdd9VP OZi/sW3bgP5+u7xP42PaGohspt/uhERJLLeUnmU1uCOl/iF/OncY2YOXrpolVUiLlUQNX sdCCAsSxP59wd1Oijbf1kLiQCoaWfiXQG4qBJSJLiXFuQeDbYIPebH8EEJCDaOnQddyK0 BNkZWC2k1pO4PBlyfYn8Ehs4n6td59E9NlJznKUNJzsd4kuZxhZ2ZKXVnVbw8+NhiaAKc /pfL8u6VwErNkSObK6xg+cXK4YUkG0C/5WC6ErYXtsjiNjocnfvZDc8ozUKTQQr4oYg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b="Pmoe/AMv"; arc=none smtp.remote-ip=220.197.31.5 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD134606A31A; Wed, 28 Oct 2026 04:50:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org AD134606A31A Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=Pmoe/AMv DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=5e X6ZERtxMma6IIiwk4zjHSJGCnTW5TdkQ89tZL/8dM=; b=Pmoe/AMv61DOoUS7hw fJtrZ1OMVnBesqPe6v4a8+oGDtdeJ3Kmtf4tf4a4NHv6eHPXLarg1WgKZ5yBzh2D sCKfYqy6c0tdGZ0XZrY36teHjocwbfTitnmOp/cu5Kq9/4MNwk/sKJvQ7YHsj4rp O2kCYpKzGX/5HwlY9DZzq6lCs= Received: from pc.localdomain (unknown []) by gzsmtp2 (Coremail) with SMTP id PSgvCgDXXyGcfuFqI22BCQ--.35298S2; Wed, 28 Oct 2026 12:48:30 +0800 (CST) From: Jiale Yao To: Justin Sanders , Jens Axboe , Ioana Ciornei , Haiyang Zhang , Wei Liu , Dexuan Cui , Brad Warrum , Ritu Agarwal , Arnd Bergmann , Greg Kroah-Hartman , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Wim Van Sebroeck , Guenter Roeck , Laurentiu Tudor , Anirudh Rayabharam , Mukesh Rathor , Muminul Islam , Nuno Das Neves , Steven Royer , Adam Reznechek , "Bryant G. Ly" , Randy Dunlap , Martin Schwidefsky , Gerald Schaefer , Florian Fainelli , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-hyperv@vger.kernel.org, linux-s390@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 0/6] Initialize device state before userspace registration Date: Wed, 28 Oct 2026 12:48:20 +0800 Message-Id: <20261028044828.96177-1-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:PSgvCgDXXyGcfuFqI22BCQ--.35298S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7XFWfGw4fZr1kWFy5Xry5Jwb_yoW8Jry3pa 1Sg3sYy392krW7Xr43Zay7Ga4Fga48uayUCF90kw1FgFs5CFyvqFW0qay8tFWDJFWxA3W0 qF10vrWxGFWUCrJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UpE_NUUUUU= X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC7x7ZFGrhfp6IQwAA3c Several drivers register character devices or sysfs attributes before initializing synchronization objects and related state used by their userspace entry points. Registration makes those entry points immediately available, so a concurrent access can reach partially initialized state. Move each initialization ahead of the corresponding registration. The patches are independent and cover AoE, fsl-mc, MSHV, IBM VMC, DCSSBLK, and the RDC321x watchdog. Jiale Yao (6): aoe: initialize error message synchronization before registration bus: fsl-mc: initialize UAPI state before device registration Drivers: hv: initialize partition table before device registration misc: ibmvmc: initialize HMC state before device registration s390/dcssblk: initialize device semaphore before sysfs registration watchdog: rdc321x: initialize device state before registration drivers/block/aoe/aoechr.c | 6 +++--- drivers/bus/fsl-mc/fsl-mc-uapi.c | 6 ++---- drivers/hv/mshv_root_main.c | 6 +++--- drivers/misc/ibmvmc.c | 16 ++++++++-------- drivers/s390/block/dcssblk.c | 3 ++- drivers/watchdog/rdc321x_wdt.c | 12 ++++++------ 6 files changed, 24 insertions(+), 25 deletions(-) -- 2.34.1