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| author | Yinghai Lu <yinghai.lu@oracle.com> | 2011-11-22 21:06:53 -0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-01-06 12:10:48 -0800 |
| commit | 79cc9601c3e42b4f0650fe7e69132ebce7ab48f9 (patch) | |
| tree | a64d1866bb2081f08396e23523171b7a9f2bada9 /drivers/pci | |
| parent | ca3671a83389eea1458929d22c66a69e955bfb07 (diff) | |
| download | op-kernel-dev-79cc9601c3e42b4f0650fe7e69132ebce7ab48f9.zip op-kernel-dev-79cc9601c3e42b4f0650fe7e69132ebce7ab48f9.tar.gz | |
PCI: Only call pci_stop_bus_device() one time for child devices at remove
During debugging pcie hotplug with SRIOV with pcie switch, I found
pci_stop_bus_device() is called several times for some child devices.
So change original pci_remove_bus_device() to __pci_remove_bus_device(),
and make it only do remove work, and add a new pci_remove_bus_device
that calls pci_stop_bus_device() one time, and then call
__pci_remove_bus_device().
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/remove.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 7f87bee..6def362 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -89,9 +89,8 @@ EXPORT_SYMBOL(pci_remove_bus); * device lists, remove the /proc entry, and notify userspace * (/sbin/hotplug). */ -void pci_remove_bus_device(struct pci_dev *dev) +static void __pci_remove_bus_device(struct pci_dev *dev) { - pci_stop_bus_device(dev); if (dev->subordinate) { struct pci_bus *b = dev->subordinate; @@ -102,6 +101,11 @@ void pci_remove_bus_device(struct pci_dev *dev) pci_destroy_dev(dev); } +void pci_remove_bus_device(struct pci_dev *dev) +{ + pci_stop_bus_device(dev); + __pci_remove_bus_device(dev); +} /** * pci_remove_behind_bridge - remove all devices behind a PCI bridge @@ -117,7 +121,7 @@ void pci_remove_behind_bridge(struct pci_dev *dev) if (dev->subordinate) list_for_each_safe(l, n, &dev->subordinate->devices) - pci_remove_bus_device(pci_dev_b(l)); + __pci_remove_bus_device(pci_dev_b(l)); } static void pci_stop_bus_devices(struct pci_bus *bus) |
