> > Single register writes are atomic and hence do not need to be surrounded by > locking. Additionally, PCI bus writes are posted asynchronously and hence > there is no guarantee that these have finished by the time the > spin_unlock*() call has finished. > > Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx> Reviewed-by: Avri Altman <avri.altman@xxxxxxx> (maybe minus the pci reference)
