If there is no driver match function, the driver core assumes that each candidate pair (driver, device) matches. See function driver_match_device(). Drop the mmc 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@xxxxxxx> --- drivers/mmc/core/bus.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index f6b7a9c5bbff..096ae624be9a 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -53,16 +53,6 @@ static struct attribute *mmc_dev_attrs[] = { }; ATTRIBUTE_GROUPS(mmc_dev); -/* - * This currently matches any MMC driver to any MMC card - drivers - * themselves make the decision whether to drive this card in their - * probe method. - */ -static int mmc_bus_match(struct device *dev, struct device_driver *drv) -{ - return 1; -} - static int mmc_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { @@ -226,7 +216,6 @@ static const struct dev_pm_ops mmc_bus_pm_ops = { static struct bus_type mmc_bus_type = { .name = "mmc", .dev_groups = mmc_dev_groups, - .match = mmc_bus_match, .uevent = mmc_bus_uevent, .probe = mmc_bus_probe, .remove = mmc_bus_remove, -- 2.25.1