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Date: Sun, 19 Mar 2023 13:01:30 +0800 From: Lizhe <sensor1010@....com> To: kwankhede@...dia.com, alex.williamson@...hat.com Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, Lizhe <sensor1010@....com> Subject: [PATCH v1] vfio/mdev: Remove redundant driver match function If there is no driver match function, the driver core assumes that each candidate pair (driver, device) matches, see driver_match_device(). Drop the bus's match function that always returned 1 and so implements the same behaviour as when there is no match function. Signed-off-by: Lizhe <sensor1010@....com> --- drivers/vfio/mdev/mdev_driver.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c index 7825d83a55f8..fafa4416aad9 100644 --- a/drivers/vfio/mdev/mdev_driver.c +++ b/drivers/vfio/mdev/mdev_driver.c @@ -31,20 +31,10 @@ static void mdev_remove(struct device *dev) drv->remove(to_mdev_device(dev)); } -static int mdev_match(struct device *dev, struct device_driver *drv) -{ - /* - * No drivers automatically match. Drivers are only bound by explicit - * device_driver_attach() - */ - return 0; -} - struct bus_type mdev_bus_type = { .name = "mdev", .probe = mdev_probe, .remove = mdev_remove, - .match = mdev_match, }; /** -- 2.34.1
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