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| author | Zijun Hu <quic_zijuhu@quicinc.com> | 2024-08-13 17:19:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-03 13:48:51 +0300 |
| commit | b45ed06f46737f8c2ee65698f4305409f2386674 (patch) | |
| tree | 407512769416e7bc7f10c86715e7e8ed5be4eb45 /include/linux/device/driver.h | |
| parent | f0e5311aa8022107d63c54e2f03684ec097d1394 (diff) | |
| download | linux-b45ed06f46737f8c2ee65698f4305409f2386674.tar.xz | |
drivers/base: Introduce device_match_t for device finding APIs
There are several drivers/base APIs for finding a specific device, and
they currently use the following good type for the @match parameter:
int (*match)(struct device *dev, const void *data)
Since these operations do not modify the caller-provided @*data, this
type is worthy of a dedicated typedef:
typedef int (*device_match_t)(struct device *dev, const void *data)
Advantages of using device_match_t:
- Shorter API declarations and definitions
- Prevent further APIs from using a bad type for @match
So introduce device_match_t and apply it to the existing
(bus|class|driver|auxiliary)_find_device() APIs.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20240813-dev_match_api-v3-1-6c6878a99b9f@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device/driver.h')
| -rw-r--r-- | include/linux/device/driver.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h index 1fc8b68786de..5c04b8e3833b 100644 --- a/include/linux/device/driver.h +++ b/include/linux/device/driver.h @@ -157,7 +157,7 @@ int __must_check driver_for_each_device(struct device_driver *drv, struct device void *data, int (*fn)(struct device *dev, void *)); struct device *driver_find_device(const struct device_driver *drv, struct device *start, const void *data, - int (*match)(struct device *dev, const void *data)); + device_match_t match); /** * driver_find_device_by_name - device iterator for locating a particular device |