On 2 August 2013 09:58, Bartosz Markowski <bartosz.markowski@xxxxxxxxx> wrote: > Unify the PCI options location. > > By default the SoC PS option is disabled to boost the > performance and due to poor stability on early HW revisions. > In future we can remove the module parameter and turn on/off > the PS for given hardware. > > This change also makes the pci module parameter for SoC PS static. > > Signed-off-by: Bartosz Markowski <bartosz.markowski@xxxxxxxxx> Hmm.. I'm worried about pci wake/sleep locking: (a) pci_wake() (awake count =1) (a) do something Now, if pci_sleep() and pci_wake() happen simultaneously/are preempted splitting primitive operations to: (a) pci_sleep(): decrease awake count (=0) (b) pci_wake(): increase awake count (=1), iowrite, wait for awake, return (a) pci_sleep(): iowrite(). return The flow in (b) now thinks the device is awake, but it's not guaranteed to be anymore because it has been put to sleep by (a). Pozdrawiam / Best regards, Michał Kazior. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
