mmc: core: 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 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@163.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211207095029.96387-1-sensor1010@163.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index f6b7a9c5bbffd23ce5bc265a4a208a5b3b728bab..096ae624be9aae262cc751df33f76e09199c84bd 100644 (file)
--- 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,