public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-18 22:14:16 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

driver core: Introduce an device matching API device_match_type()

Browse source 
Introduce device_match_type() for purposes below:

- Test if a device matches with a specified device type.
- As argument of various device finding APIs to find a device with
  specified type.

device_find_child() will use it to simplify operations later.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20241224-const_dfc_done-v5-9-6623037414d4@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zijun Hu 2024-12-24 21:05:08 +08:00 • committed by Greg Kroah-Hartman
parent 6687f282e9
commit adf908c965
2 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/base/core.c
View file

@ -5228,6 +5228,12 @@ 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 np && dev->of_node == np;

1
include/linux/device/bus.h
View file

@ -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);