linux-kernel - RE: [PATCH v12 1/5] PCI: make pci_dev_is_disconnected() helper public for other drivers

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Message-ID: <BN9PR11MB5276B0ADF497AEE3D990824A8C7E2@BN9PR11MB5276.namprd11.prod.outlook.com>
Date: Mon, 29 Jan 2024 08:50:14 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Ethan Zhao <haifeng.zhao@...ux.intel.com>, "baolu.lu@...ux.intel.com"
	<baolu.lu@...ux.intel.com>, "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
	"robin.murphy@....com" <robin.murphy@....com>, "jgg@...pe.ca" <jgg@...pe.ca>
CC: "dwmw2@...radead.org" <dwmw2@...radead.org>, "will@...nel.org"
	<will@...nel.org>, "lukas@...ner.de" <lukas@...ner.de>, "Liu, Yi L"
	<yi.l.liu@...el.com>, "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>, Haorong Ye
	<yehaorong@...edance.com>
Subject: RE: [PATCH v12 1/5] PCI: make pci_dev_is_disconnected() helper public
 for other drivers

> From: Ethan Zhao <haifeng.zhao@...ux.intel.com>
> Sent: Monday, January 29, 2024 11:49 AM
> 
> Make pci_dev_is_disconnected() public so that it can be called from
> Intel VT-d driver to quickly fix/workaround the surprise removal
> unplug hang issue for those ATS capable devices on PCIe switch downstream
> hotplug capable ports.
> 
> Beside pci_device_is_present() function, this one has no config space

s/Beside/Unlike/

> space access, so is light enough to optimize the normal pure surprise
> removal and safe removal flow.

somehow this paragraph belongs to the patch using it. The 1st paragraph
is sufficient for the reason of exposure.