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| author | Dennis Dalessandro <dennis.dalessandro@intel.com> | 2018-08-31 19:34:14 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-09-12 04:44:52 +0200 |
| commit | bfc456060d0cbcf6902a436d358b60cb1534668c (patch) | |
| tree | 6dfffd4d832b98bba39ab0f87e67e8e39951043c /drivers/pci/pci.c | |
| parent | PCI: Fix faulty logic in pci_reset_bus() (diff) | |
| download | linux-bfc456060d0cbcf6902a436d358b60cb1534668c.tar.xz linux-bfc456060d0cbcf6902a436d358b60cb1534668c.zip | |
IB/hfi1,PCI: Allow bus reset while probing
Calling into the new API to reset the secondary bus results in a deadlock.
This occurs because the device/bus is already locked at probe time.
Reverting back to the old behavior while the API is improved.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200985
Fixes: c6a44ba950d1 ("PCI: Rename pci_try_reset_bus() to pci_reset_bus()")
Fixes: 409888e0966e ("IB/hfi1: Use pci_try_reset_bus() for initiating PCI Secondary Bus Reset")
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Cc: Sinan Kaya <okaya@codeaurora.org>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 30b260332a10..1835f3a7aa8d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4547,6 +4547,7 @@ int pci_bridge_secondary_bus_reset(struct pci_dev *dev) return pci_dev_wait(dev, "bus reset", PCIE_RESET_READY_POLL_MS); } +EXPORT_SYMBOL_GPL(pci_bridge_secondary_bus_reset); static int pci_parent_bus_reset(struct pci_dev *dev, int probe) { |