linux

iv/linux

History

Lukas Wunner a50ac6bfd6 PCI: Simplify disconnected marking

Commit 89ee9f768003 ("PCI: Add device disconnected state") iterates over
the devices on a parent bus, marks each as disconnected, then marks
each device's children as disconnected using pci_walk_bus().

The same can be achieved more succinctly by calling pci_walk_bus() on
the parent bus.  Moreover, this does not need to wait until acquiring
pci_lock_rescan_remove(), so move it out of that critical section.

The critical section in err.c contains a pci_dev_get() / pci_dev_put()
pair which was apparently copy-pasted from pciehp_pci.c.  In the latter
it serves the purpose of holding the struct pci_dev in place until the
Command register is updated.  err.c doesn't do anything like that, hence
the pair is unnecessary.  Remove it.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Oza Pawandeep <poza@codeaurora.org>
Cc: Sinan Kaya <okaya@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2018-09-17 16:34:35 -05:00

aer_inject.c

PCI/AER: Hoist aerdrv.c, aer_inject.c up to drivers/pci/pcie/

2018-06-11 08:11:39 -05:00

aer.c

Merge branch 'pci/virtualization'

2018-08-15 14:59:06 -05:00

aspm.c

PCI/ASPM: Convert to use sysfs_match_string() helper

2018-08-06 14:30:34 -05:00

dpc.c

PCI/DPC: Remove indirection waiting for inactive link