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| author | Stuart Hayes <stuart.w.hayes@gmail.com> | 2017-10-04 17:57:52 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-10-11 02:13:38 +0200 |
| commit | 27d6162944b9b34c32cd5841acd21786637ee743 (patch) | |
| tree | 42684eeeea15b227273b21a650cbdde6a0d4fe7a /drivers/pci/iov.c | |
| parent | PCI: Expose SR-IOV offset, stride, and VF device ID via sysfs (diff) | |
| download | linux-27d6162944b9b34c32cd5841acd21786637ee743.tar.xz linux-27d6162944b9b34c32cd5841acd21786637ee743.zip | |
PCI: Create SR-IOV virtfn/physfn links before attaching driver
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>
Diffstat (limited to 'drivers/pci/iov.c')
| -rw-r--r-- | drivers/pci/iov.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 7492a65baba9..ce24cf235f01 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -159,7 +159,6 @@ int pci_iov_add_virtfn(struct pci_dev *dev, int id) 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) @@ -170,6 +169,8 @@ int pci_iov_add_virtfn(struct pci_dev *dev, int id) kobject_uevent(&virtfn->dev.kobj, KOBJ_CHANGE); + pci_bus_add_device(virtfn); + return 0; failed2: |