tree a973d7ad933e06c89f39368f86fc33ef9b759648
parent 4b103883473964bbb7b0b6934999b283ee234a8a
author Keith Busch <keith.busch@intel.com> 1490845751 -0500
committer Bjorn Helgaas <bhelgaas@google.com> 1490846107 -0500

PCI/MSI: Skip disabling disconnected devices

Check the device connected state prior to executing device shutdown
operations or writing MSI messages so that tear down on disconnected
devices completes quicker.

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>