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authorKeith Busch <keith.busch@intel.com>2017-03-30 06:48:59 +0300
committerBjorn Helgaas <bhelgaas@google.com>2017-03-30 06:54:46 +0300
commit89ee9f7680031d7df91a1a27abac69e034c2e892 (patch)
tree4e874d870f8fd310aa954153c590f6ae93517868 /Documentation
parentd3881e5015421a578bc328136471fcf1d02ac389 (diff)
downloadlinux-89ee9f7680031d7df91a1a27abac69e034c2e892.tar.xz
PCI: Add device disconnected state
Add a new state to pci_dev to be set when it is unexpectedly disconnected. The PCI driver tear down functions can observe this new device state so they may skip operations that will fail. The pciehp and pcie-dpc drivers are aware when the link is down, so these set the flag when their handlers detect the device is disconnected. Tested-by: Krishna Dhulipala <krishnad@fb.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Wei Zhang <wzhang@fb.com>
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