Without this setups with buіlt-in mdev and mdev-drivers fail to register like this: [1.903149] Driver 'intel_vgpu_mdev' was unable to register with bus_type 'mdev' because the bus was not initialized. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- drivers/vfio/mdev/mdev_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c index e4581ec093a6..b16606ebafa1 100644 --- a/drivers/vfio/mdev/mdev_core.c +++ b/drivers/vfio/mdev/mdev_core.c @@ -398,7 +398,7 @@ static void __exit mdev_exit(void) mdev_bus_unregister(); } -module_init(mdev_init) +subsys_initcall(mdev_init) module_exit(mdev_exit) MODULE_VERSION(DRIVER_VERSION); -- 2.30.2