This is a note to let you know that I've just added the patch titled

PCI: Create SR-IOV virtfn/physfn links before attaching driver

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: pci-create-sr-iov-virtfn-physfn-links-before-attaching-driver.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Wed Dec 20 18:17:52 CET 2017

From: Stuart Hayes stuart.w.hayes@gmail.com Date: Wed, 4 Oct 2017 10:57:52 -0500 Subject: PCI: Create SR-IOV virtfn/physfn links before attaching driver

From: Stuart Hayes stuart.w.hayes@gmail.com

[ Upstream commit 27d6162944b9b34c32cd5841acd21786637ee743 ]

When creating virtual functions, create the "virtfn%u" and "physfn" links in sysfs *before* attaching the driver instead of after. When we attach the driver to the new virtual network interface first, there is a race when the driver attaches to the new sends out an "add" udev event, and the network interface naming software (biosdevname or systemd, for example) tries to look at these links.

Signed-off-by: Stuart Hayes stuart.w.hayes@gmail.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pci/iov.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -162,7 +162,6 @@ int pci_iov_add_virtfn(struct pci_dev *d

pci_device_add(virtfn, virtfn->bus);

- pci_bus_add_device(virtfn); sprintf(buf, "virtfn%u", id); rc = sysfs_create_link(&dev->dev.kobj, &virtfn->dev.kobj, buf); if (rc) @@ -173,6 +172,8 @@ int pci_iov_add_virtfn(struct pci_dev *d

kobject_uevent(&virtfn->dev.kobj, KOBJ_CHANGE);

+ pci_bus_add_device(virtfn); + return 0;

failed2:

Patches currently in stable-queue which might be from stuart.w.hayes@gmail.com are

queue-4.14/pci-create-sr-iov-virtfn-physfn-links-before-attaching-driver.patch