From 290aac5df88a83e264b3a73ec146e5e5b3c45793 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Fri, 23 Sep 2022 11:26:48 +0200 Subject: vfio/mdev: consolidate all the device_api sysfs into the core code Every driver just emits a static string, simply feed it through the ops and provide a standard sysfs show function. Signed-off-by: Jason Gunthorpe Signed-off-by: Christoph Hellwig Reviewed-by: Tony Krowiak Reviewed-by: Kevin Tian Reviewed-by: Kirti Wankhede Reviewed-by: Eric Farman Link: https://lore.kernel.org/r/20220923092652.100656-11-hch@lst.de Signed-off-by: Alex Williamson --- drivers/vfio/mdev/mdev_driver.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/vfio/mdev/mdev_driver.c') diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c index 5b3c94f4fb13..60e8b9f6474e 100644 --- a/drivers/vfio/mdev/mdev_driver.c +++ b/drivers/vfio/mdev/mdev_driver.c @@ -55,8 +55,10 @@ struct bus_type mdev_bus_type = { **/ int mdev_register_driver(struct mdev_driver *drv) { - if (!drv->types_attrs) + if (!drv->types_attrs || !drv->device_api) return -EINVAL; + + /* initialize common driver fields */ drv->driver.bus = &mdev_bus_type; return driver_register(&drv->driver); } -- cgit v1.2.3