linux-kernel - RE: [EXTERNAL] [RFC v4 5/7] PCI: hv: Use pci_host_bridge::domain

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Message-ID: <MW4PR21MB2002D9659313C9B642171629C0139@MW4PR21MB2002.namprd21.prod.outlook.com>
Date:   Wed, 14 Jul 2021 17:04:38 +0000
From:   Sunil Muthuswamy <sunilmut@...rosoft.com>
To:     Boqun Feng <boqun.feng@...il.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Arnd Bergmann <arnd@...db.de>, Marc Zyngier <maz@...nel.org>
CC:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Mike Rapoport <rppt@...nel.org>
Subject: RE: [EXTERNAL] [RFC v4 5/7] PCI: hv: Use pci_host_bridge::domain_nr
 for PCI domain

> diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
> index 8d42da5dd1d4..5741b1dd3c14 100644
> --- a/drivers/pci/controller/pci-hyperv.c
> +++ b/drivers/pci/controller/pci-hyperv.c
> @@ -2299,7 +2299,7 @@ static void hv_eject_device_work(struct work_struct *work)
>  	 * because hbus->bridge->bus may not exist yet.
>  	 */
>  	wslot = wslot_to_devfn(hpdev->desc.win_slot.slot);
> -	pdev = pci_get_domain_bus_and_slot(hbus->sysdata.domain, 0, wslot);
> +	pdev = pci_get_domain_bus_and_slot(hbus->bridge->domain_nr, 0, wslot);
>  	if (pdev) {
>  		pci_lock_rescan_remove();
>  		pci_stop_and_remove_bus_device(pdev);
> @@ -3071,6 +3071,7 @@ static int hv_pci_probe(struct hv_device *hdev,
>  			 "PCI dom# 0x%hx has collision, using 0x%hx",
>  			 dom_req, dom);
> 
> +	hbus->bridge->domain_nr = dom;
>  	hbus->sysdata.domain = dom;
With your other patches everything is moving over to based off of bridge->domain_nr.
Do we still need to update sysdata.domain?