On 03/11/2022 15:51, Sam Protsenko wrote: > Rework the driver so it can be built as a loadable module. That can be > useful as not all ARM64 platforms need it. And that's ok for it to be a > module because it's not a critical driver (platform can work when it's > disabled). > > Remove method and module exit function are not implemented, as the > removal of IOMMUs cannot be done reliably. As Robin Murphy mentioned in > [1]: > > ...it's better not to even pretend that removing an IOMMU's driver > while other drivers are using it (usually via DMA ops without even > realising) is going to have anything other than catastrophic > results. > > [1] https://lore.kernel.org/lkml/20220702213724.3949-2-semen.protsenko@xxxxxxxxxx/T/#md7e1e3f5b2c9e7fa5bc28fe33e818b6aa4a7237c > > Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Best regards, Krzysztof
