On 9/13/2016 11:02 PM, Bjorn Helgaas wrote:
On Tue, Sep 06, 2016 at 06:20:46AM +0200, Lukas Wunner wrote:Starting with v4.8, we allow a PCIe port to runtime suspend to D3hot if the port itself and its children satisfy a number of conditions. Once a child is removed, we recheck those conditions in case the removed device was blocking the port from suspending. The rechecking needs to happen *after* the device has been removed from the bus it resides on. Otherwise when walking the port's subordinate bus in pci_bridge_d3_update(), the device being removed would erroneously still be taken into account. However the device is removed from the bus_list in pci_destroy_dev() and we currently recheck *before* that. Fix it. Fixes: 9d26d3a8f1b0 ("PCI: Put PCIe ports into D3 during suspend") Cc: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>9d26d3a8f1b0 appeared in v4.8-rc1, so I assume this fix should be merged before v4.8, right?
Yup.
I applied it to for-linus with Mika's reviewed-by and Rafael's acked-by on that assumption.
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