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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 40992CC6B1A for ; Tue, 13 Oct 2026 16:41:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Date: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Cc:To:Subject: From:Message-ID:MIME-Version:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gvPKHDZ9PXmqAfRqRoBQE5C1e2Kg8stYE+1iBXMRupg=; b=Vj/y15FPcCOenT8uTVsEAJcSyu s/gKN3xMDPmblJESpCOPNsLonlLc/oiwjgk+iFZ2MyMGDsjybLhSuh7xRRzwJdcS7SLGcnxumdnWE IIVEs9X5iKXomGgjq4pQgT3GUmYq5fvhzh3chXltV+Sbssf4XlmiLU6GVNF320bo/0peWUOUlv5tl Gb0gsAHcrc+SaA0jPAHiPPG2IV9Yb3Y7INREU5oHMiNzeO0fB+8ff4ryJ34r+loFLMdvAXBMRw7Cm iGC2lMX8H2UfsVusxGm8b6pirEeP85/Wy2GdlK8ZK81/iJssaM/GOoHmoCAJQHGKs2azoHmQRNcl5 Ne8xTbMA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGfZH-0000000DZUM-1mmu; Tue, 13 Oct 2026 16:41:35 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGfZE-0000000DZTI-3fB1 for kexec@lists.infradead.org; Tue, 13 Oct 2026 16:41:34 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 5101F602C3; Tue, 13 Oct 2026 16:41:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 188B41F000FF; Tue, 13 Oct 2026 16:41:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791909692; bh=gvPKHDZ9PXmqAfRqRoBQE5C1e2Kg8stYE+1iBXMRupg=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=hGtD6FS2Z0u2Iz2gXS/7rWoxt7Y92I+e9s6jHrwSrB68GEzWkxaDgRt/Jn6poQPqL APIvg2tJGphgf1wmaE4IGKqWSw8JjBU2jNU5rIl5hvjwQTa7T6B2RMcm+CNqE+/IYO TXSJ8vYplnPF6UWmOwRewK93sQ1R06O/ygIRAJn2jgV5JQuecxROzszbPu7W2jAheZ e3coj81KRh9LUnCTQn9XUYWj/ZlITAGeVn4Hgm36dodOYxrjEGur6R5WPdt9dTprT1 ysrUACReRQUVQmypoMkjz5ug2jiv+HcxDpkscOXr2+WIGc/AGllHu47ZW5ewoiOejx jUeURDmOYOvSg== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v10 05/13] PCI: liveupdate: Auto-preserve upstream bridges across Live Update To: "David Matlack" , kexec@lists.infradead.org, linux-pci@vger.kernel.org Cc: "Adithya Jayachandran" , "Alexander Graf" , "Alex Williamson" , "Bjorn Helgaas" , "Chris Li" , "David Rientjes" , "Jacob Pan" , "Jason Gunthorpe" , "Jonathan Corbet" , "Josh Hilke" , "Leon Romanovsky" , "Lukas Wunner" , "Mike Rapoport" , "Parav Pandit" , "Pasha Tatashin" , "Pranjal Shrivastava" , "Pratyush Yadav" , "Randy Dunlap" , "Saeed Mahameed" , "Samiullah Khawaja" , "Shuah Khan" , "Vipin Sharma" , "William Tu" , "Yi Liu" In-Reply-To: <20261013162529.1928093-6-dmatlack@google.com> References: <20261013162529.1928093-1-dmatlack@google.com> <20261013162529.1928093-6-dmatlack@google.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 13 Oct 2026 16:41:30 +0000 X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org > When a PCI device is preserved across a Live Update, all of its upstream > bridges up to the root port must also be preserved. This enables the PCI > core and any drivers bound to the bridges to manage bridges correctly > across a Live Update. >=20 > Notably, this will be used in subsequent commits to ensure that > preserved devices can continue performing memory transactions without a > disruption or change in routing. >=20 > To preserve bridges, the PCI core tracks the number of downstream > devices preserved under each bridge using a reference count in struct > pci_dev_ser. This allows a bridge to remain preserved until all its > downstream preserved devices are unpreserved or finish their > participation in the Live Update. >=20 > Reviewed-by: Pasha Tatashin > Reviewed-by: Pranjal Shrivastava > Signed-off-by: David Matlack Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261013162529.1928= 093-1-dmatlack@google.com?part=3D5