diff options
| -rw-r--r-- | drivers/dma/idxd/init.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 02c285499c5a..eb64a38444c1 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -726,6 +726,39 @@ static void idxd_cleanup(struct idxd_device *idxd) } /* + * Attach IDXD device to IDXD driver. + */ +static int idxd_bind(struct device_driver *drv, const char *buf) +{ + const struct bus_type *bus = drv->bus; + struct device *dev; + int err = -ENODEV; + + dev = bus_find_device_by_name(bus, NULL, buf); + if (dev) + err = device_driver_attach(drv, dev); + + put_device(dev); + + return err; +} + +/* + * Detach IDXD device from driver. + */ +static void idxd_unbind(struct device_driver *drv, const char *buf) +{ + const struct bus_type *bus = drv->bus; + struct device *dev; + + dev = bus_find_device_by_name(bus, NULL, buf); + if (dev && dev->driver == drv) + device_release_driver(dev); + + put_device(dev); +} + +/* * Probe idxd PCI device. * If idxd is not given, need to allocate idxd and set up its data. * |