[PATCH v2 02/32] driver core: Introduce device_match_type() to match device with a device type
From: Zijun Hu <hidden>
Date: 2024-12-03 00:35:41
Also in:
arm-scmi, dri-devel, linux-block, linux-cxl, linux-efi, linux-gpio, linux-hwmon, linux-media, linux-mediatek, linux-pwm, linux-remoteproc, linux-scsi, linux-serial, linux-sound, linux-usb, lkml, nvdimm, sparclinux
Subsystem:
driver core, kobjects, debugfs and sysfs, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Linus Torvalds
From: Zijun Hu <redacted> Introduce device_match_type() to simplify operations below: - Test if a device matches with specified device type. - Find a device with specified device type via various device finding APIs. device_find_child() will use it as argument to simplify operations later. Signed-off-by: Zijun Hu <redacted> --- drivers/base/core.c | 6 ++++++ include/linux/device/bus.h | 1 + 2 files changed, 7 insertions(+)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index a122ea1d84a3b08fce16dd1abdfa7746d31dc430..5bda2edcd83149decd50bb5e9a0ed4267b1f8f6c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c@@ -5239,6 +5239,12 @@ int device_match_name(struct device *dev, const void *name) } EXPORT_SYMBOL_GPL(device_match_name); +int device_match_type(struct device *dev, const void *type) +{ + return dev->type == type; +} +EXPORT_SYMBOL_GPL(device_match_type); + int device_match_of_node(struct device *dev, const void *np) { return dev->of_node == np;
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index cdc4757217f9bb4b36b5c3b8a48bab45737e44c5..bc3fd74bb763e6d2d862859bd2ec3f0d443f2d7a 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h@@ -131,6 +131,7 @@ typedef int (*device_match_t)(struct device *dev, const void *data); /* Generic device matching functions that all busses can use to match with */ int device_match_name(struct device *dev, const void *name); +int device_match_type(struct device *dev, const void *type); 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);
--
2.34.1