From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C72CC433FE for ; Wed, 29 Sep 2021 20:13:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6545461504 for ; Wed, 29 Sep 2021 20:13:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346005AbhI2UO7 (ORCPT ); Wed, 29 Sep 2021 16:14:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:50928 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346604AbhI2UO7 (ORCPT ); Wed, 29 Sep 2021 16:14:59 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E37796128C; Wed, 29 Sep 2021 20:13:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632946397; bh=kOxZtdv0wBxyRlcBOHpUgstBhEhcwK9T78TtmN4waIU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QmiHMeJVDXWMPAE7Rw0oMV86LEICajW17kk0UoY2KZtFJRhd8yDjHbYL+0zLXrPtx iAW0kAFW+JL5z5swdFT4I1tz3FGTkxKfW0z1uoS0oqfgWd10bw6pmfUomTkSvr7taL RzgTyoX0EmmJ0c/QaekejA84/1fhnsIL7ecL5Tq06BXhO5nmWBmZzGqF6xTabze/tz q6uiarAKlYglmkieJEOTbzc6waXv5x+zbcoV8DrL7Sc+5JiV/vRSO4CPornRXMfeV6 Mpf5NnX/M5zFBvlfLGH/CRUAIP23VqKVCvK7kDnFCahV/zfpIimW+SJZ1WxI/7+xPa OIFAwIJsYL2Ow== Date: Wed, 29 Sep 2021 22:13:14 +0200 From: Wolfram Sang To: Heiner Kallweit Cc: Jean Delvare , "linux-i2c@vger.kernel.org" , Andy Shevchenko Subject: Re: [PATCH] i2c: i801: Use PCI bus rescan mutex to protect P2SB access Message-ID: Mail-Followup-To: Wolfram Sang , Heiner Kallweit , Jean Delvare , "linux-i2c@vger.kernel.org" , Andy Shevchenko References: <7521c130-d777-6a26-bd14-1ed784f828cc@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="QZwaiTSglb9Ptzub" Content-Disposition: inline In-Reply-To: <7521c130-d777-6a26-bd14-1ed784f828cc@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org --QZwaiTSglb9Ptzub Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Sep 05, 2021 at 05:59:42PM +0200, Heiner Kallweit wrote: > As pointed out by Andy in [0] using a local mutex here isn't strictly > wrong but not sufficient. We should hold the PCI rescan lock for P2SB > operations. >=20 > [0] https://www.spinics.net/lists/linux-i2c/msg52717.html >=20 > Fixes: 1a987c69ce2c ("i2c: i801: make p2sb_spinlock a mutex") > Reported-by: Andy Shevchenko > Signed-off-by: Heiner Kallweit Applied to for-next, thanks! --QZwaiTSglb9Ptzub Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmFUyNoACgkQFA3kzBSg Kbai1w//QYMYpdGPnYdAmmSIQC20yEp7Ps/w5FOympVnDXNbjWX8CgHw4a0BWKNr lpCqiv/el2AYNCpOHDms24TiaW2O9oM0Ibxp6OtA0xTqbl0SkPnD+X4EiiJbcVys wMsbSVRVjPQdvl+oQpGZM2q5hKcgdddpex6PYtlZkzoWwM1yGwI+v8UFmm2/M+cP wNGysupDr2PkyfbGvfRgWyrxhVCKpgV6QikL1K0sZo6EJANLygfF1TZ6Qhd9BaOX K65OuZ5/42CAmyC40FuiZ8WtXU6473FvqKj8um5u1Ze1cgFvi0OuVbLeHhCaGWAN 0FDnDoPX4zkEgO0l32p/KN2h+N0BJxf1WAJ2kYJIlhQIM7vnQl2zHntyXHCvLQ4H eU4IZZGtl+rURAi/fSVNofolfuMZkMymUG+AiR6474s788WbpfapJnLviA5CjuGN X5uwXSzTVR5nMrQEuTHcZPV7+88nbhmX6u2hJ3sKrSB4+Znk7B5Kvd3Bxeg5s8n8 pHfc2KA+J4835DgWcMAOHPxZehnSInJs1iZhs3nXFnI6fNpLh3+Td7oep4Z0CiZn LWf8N3zLOaaQaxc4qxLBH7LPxrT2LOyG7UpYhmdXouIEIwA4v2yhQabhoi4X7M2l nbZhsestSsVMdOs69hYsiGhU+UttJ2jF033R0+qyspj9XksqLtQ= =zUtV -----END PGP SIGNATURE----- --QZwaiTSglb9Ptzub--