From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB9653264EB for ; Mon, 16 Mar 2026 16:03:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773677037; cv=none; b=TnlaXx2owBszeu1TsUK15Qsajlb6mDGu73x2EXzA+gvhX+CP0lwrOMD1EIXA8ExBcPiwJSm6sx6UVy1Jl6+emWPJKM8ue750/zq269TsVDmT0kloFCVky54zNZrsVSdHSrderT5qk2NNcBer6Zw4Ot5PGDuxK+5ygHhEb7XCqTc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773677037; c=relaxed/simple; bh=VInkhQ5cN1UgrkyCqVsf7W0yAPyJU1+jBM2qlhzBzLY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=RPZ8xpWmnW0etSp9Vw2VdRUrDguzbklor0J4g814MqNLjs3RGT4/3nOYTOmW9y3qpvtIXSAEjfUo9uxen8sYQKT2gZvehcgsQHcbksFLUNWX6jKFFrLYZDwKNpRfCRJPqEpsrABVvl16RD9CCOs5JskjpLw6/B1MScBMo+tllK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Y/weheCp; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Y/weheCp" Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-2aeab6ff148so160575ad.1 for ; Mon, 16 Mar 2026 09:03:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1773677036; x=1774281836; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=f55pgibkB6ee+8s3SeqViClU/kNvQ9qZ/ylLM13UAeM=; b=Y/weheCpwOKFypb5JRCCbqkQbARpJ0gg5UKZ3L20u70gNb31B+A98JTQDJxRPNpyrT 1BT47ZquWv8Q8WpBrU+rXXE2eS/BjJjMtpZxJTxogZi0tSuV9gf4pFsk6/VXaWt7FFI6 Lzjfw2KIZCwYttcgCjqzPcSDy81mX7r6wCQzsW7gvkpjHmMtpl/BmBImlzN08xL8EXor LkF8ntWJ8kWAb5jMytzFmsghAXeIXxBD63U/4SSIB25iRWPsWuzkJuIfQ3eh5LQ3RvnV DU6U4xo06jf6Ycp2DblajTywRg5TEcSHnfG9Lu/PcfjfYw9VvATNDry+JRT6gOh7NXwp acMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773677036; x=1774281836; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=f55pgibkB6ee+8s3SeqViClU/kNvQ9qZ/ylLM13UAeM=; b=TNd6c2L7FsbgeOq3m3ya1sU58Lmo2zg9Zv6CF5ESQk0I/pzpvl5BHXU+6oB+L9aLH7 kSP5rVpC6uX1TjdLrBVjZqrWFckKS1PL482M4jGEn7t5E0Ns8DukasWJxeZ/taqj5lLi Zy7oKXp/ZCH1GtRnbCnGHGTLGjEo9PJPwIWc2CSfbI5kjULe3d2gxFaR1kN3ODsF4oxl rhpO+WnbRFMxI+V9MchfVkX+lk/XdHn4LazUOVd9v4U38S3jOelY/UUHd57ZzuVnL1jy VPvxOtYXeuBimVsUROae5k9x5t233g1FzaxyIPrKyrHDNjqSOdpp9burcj2reNe07pgd MNUQ== X-Forwarded-Encrypted: i=1; AJvYcCXkU9pcuspjMXIrr4H9diFzjNwAwDAPWHaO4fnRM9HKAdOKxKpQNaxN0or9YkyXV1U2/NpvHVZC7m8=@vger.kernel.org X-Gm-Message-State: AOJu0Yx5CMI3wG+dWtH5+Hh025qLUOn0HYVrSGXfpPkIH2NokvN33J4j PZnHPgjNC62z6AE5Lt7ZI2u7/ThxdweIhGSAjnCig+hMH9OXWPUD+oSzEKgBkdY0Zg== X-Gm-Gg: ATEYQzx0M5gH2XKVjs5ycq0we0+9tI+SAoXBZLK3fYkURehCNAPDu3QYQewuq7KYBC1 KgXDWSR3RkzHIMMGus7TbZUezt36XWfeZ55l7lIDcQB4+dtr2WRtDAOk1PylaQZPWaUfzFyH29c SIX2FFMIKQlXx0ULgiB/m2YzBb5U0VTIfwSCew2jTUmLemdQnhse7jcIH1Ac2T7cb9SkiJDwSSS CQ6opNy8H6C+NTU+pX8z0bQlSGuCLLh/lULsLVz7rc4AWK+e7Y5P2P8tO3DORH8bJISsD0RD5tY D+0RHxgPIQagWGI9zlLpprX5wKco3syL0/SpvwZSlIwsRmKQghJvbNMGyXAOYPwGIiin8rtHNWy GAaXynGj0zouiMmRv2+wyZc9pum50MpF7wJWHyAJsq5C18Gx+zR3+aatLUnu8Ssokb6alcwM2VV biY1v29yPkk6UbQ2lzieao0PEGYgUMtaJDunApRotm4q7ZrmIFOtZ+/nt8mA== X-Received: by 2002:a17:902:f54f:b0:2ae:d10c:6382 with SMTP id d9443c01a7336-2b042102968mr4463575ad.20.1773677035489; Mon, 16 Mar 2026 09:03:55 -0700 (PDT) Received: from google.com (60.89.247.35.bc.googleusercontent.com. [35.247.89.60]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c73eb9966cesm9261411a12.10.2026.03.16.09.03.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2026 09:03:54 -0700 (PDT) Date: Mon, 16 Mar 2026 09:03:50 -0700 From: Vipin Sharma To: David Matlack Cc: Alex Williamson , Adithya Jayachandran , Alexander Graf , Alex Mastro , Alistair Popple , Andrew Morton , Ankit Agrawal , Bjorn Helgaas , Chris Li , David Rientjes , Jacob Pan , Jason Gunthorpe , Jason Gunthorpe , Jonathan Corbet , Josh Hilke , Kevin Tian , kexec@lists.infradead.org, kvm@vger.kernel.org, Leon Romanovsky , Leon Romanovsky , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-pci@vger.kernel.org, Lukas Wunner , =?utf-8?Q?Micha=C5=82?= Winiarski , Mike Rapoport , Parav Pandit , Pasha Tatashin , Pranjal Shrivastava , Pratyush Yadav , Raghavendra Rao Ananta , Rodrigo Vivi , Saeed Mahameed , Samiullah Khawaja , Shuah Khan , Thomas =?utf-8?Q?Hellstr=C3=B6m?= , Tomita Moeko , Vivek Kasireddy , William Tu , Yi Liu , Zhu Yanjun Subject: Re: [PATCH v2 07/22] vfio/pci: Notify PCI subsystem about devices preserved across Live Update Message-ID: <20260314061747.GD4177610.vipinsh@google.com> References: <20260129212510.967611-1-dmatlack@google.com> <20260129212510.967611-8-dmatlack@google.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260129212510.967611-8-dmatlack@google.com> On Thu, Jan 29, 2026 at 09:24:54PM +0000, David Matlack wrote: > diff --git a/drivers/vfio/pci/vfio_pci_liveupdate.c b/drivers/vfio/pci/vfio_pci_liveupdate.c > @@ -192,10 +200,24 @@ static struct liveupdate_file_handler vfio_pci_liveupdate_fh = { > > int __init vfio_pci_liveupdate_init(void) > { > + int ret; > + > if (!liveupdate_enabled()) > return 0; > > - return liveupdate_register_file_handler(&vfio_pci_liveupdate_fh); > + ret = liveupdate_register_file_handler(&vfio_pci_liveupdate_fh); > + if (ret) > + return ret; > + > + ret = pci_liveupdate_register_fh(&vfio_pci_liveupdate_fh); May be we should rename pci_liveupdate_register_fh() to something like pci_register_to_liveupdate_flb(). In the current way, it is confusing to why same handler is getting registered at two places. Above name will also make it similar to IOMMU series as well https://lore.kernel.org/kvm/20260203220948.2176157-2-skhawaja@google.com/