Add a helper to match a device by its type. This will be used later for providing wrappers to the device iterators for bus/class/driver.
Cc: Alexander Shishkin <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Harald Freudenberger <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: [email protected] Cc: Oliver Neukum <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Tomas Winkler <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Ulf Hansson <[email protected]> Cc: Joe Perches <[email protected]> Signed-off-by: Suzuki K Poulose <[email protected]> --- drivers/base/core.c | 6 ++++++ include/linux/device.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index efcdb96..b827ca1 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3340,3 +3340,9 @@ int device_match_fwnode(struct device *dev, const void *fwnode) return dev_fwnode(dev) == fwnode; } EXPORT_SYMBOL_GPL(device_match_fwnode); + +int device_match_devt(struct device *dev, const void *pdevt) +{ + return dev->devt == *(dev_t *)pdevt; +} +EXPORT_SYMBOL_GPL(device_match_devt); diff --git a/include/linux/device.h b/include/linux/device.h index 08aa087..f315692 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -165,6 +165,7 @@ void subsys_dev_iter_exit(struct subsys_dev_iter *iter); int device_match_of_node(struct device *dev, const void *np); int device_match_fwnode(struct device *dev, const void *fwnode); +int device_match_devt(struct device *dev, const void *pdevt); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); -- 2.7.4
