Messages in this thread | | | From | "Tian, Kevin" <> | Subject | RE: [PATCH v4 04/16] iommu: Always register bus notifiers | Date | Thu, 18 Aug 2022 07:34:38 +0000 |
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> From: Robin Murphy <robin.murphy@arm.com> > Sent: Tuesday, August 16, 2022 12:20 AM > > The number of bus types that the IOMMU subsystem deals with is small and > manageable, so pull that list into core code as a first step towards > cleaning up all the boilerplate bus-awareness from drivers. Calling > iommu_probe_device() before bus->iommu_ops is set will simply return > -ENODEV and not break the notifier call chain, so there should be no > harm in proactively registering all our bus notifiers at init time. > > Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> > Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> # s390 > Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> # s390 > Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
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