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Not only is this generally bad practice, but in the case of runtime PM, policy changes can affect initialized devices, even while they're in use, resulting in unbalanced operations. This series first addresses the runtime PM case as a separate fix for stable, latching the runtime PM support into the device. It then expands the scope to pull the policy set by vfio-pci out of the core, making each policy latched at the device by the variant driver. This also has the effect of restoring the mutability of two of the module parameters, where that functionality was lost with the vfio-pci-core split. With this series, the current parameter values are latched into the device at probe time. Please review. Thanks, Alex Alex Williamson (2): vfio/pci: Latch disable_idle_d3 per device vfio/pci: Latch all module parameters per device drivers/vfio/pci/vfio_pci.c | 30 +++++++++++++----- drivers/vfio/pci/vfio_pci_core.c | 52 +++++++++++++++----------------- include/linux/vfio_pci_core.h | 5 +-- 3 files changed, 49 insertions(+), 38 deletions(-) -- 2.53.0