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Merge tag 'gpiod-devm-is-action-added-for-v6.16-rc1' into gpio/for-next

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Immutable tag for the driver core tree to pull from

devres: Move devm_*_action*() APIs to devres.h
devres: Add devm_is_action_added() helper
This commit is contained in:
Bartosz Golaszewski
2025-04-28 09:40:53 +02:00
parent 417b0f8d08 e383bb8f95
commit 063a2b45d6
3 changed files with 52 additions and 38 deletions
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drivers/base/devres.c
+11
View File
@@ -759,6 +759,17 @@ int __devm_add_action(struct device *dev, void (*action)(void *), void *data, co
}
EXPORT_SYMBOL_GPL(__devm_add_action);
bool devm_is_action_added(struct device *dev, void (*action)(void *), void *data)
{
struct action_devres devres = {
.data = data,
.action = action,
};
return devres_find(dev, devm_action_release, devm_action_match, &devres);
}
EXPORT_SYMBOL_GPL(devm_is_action_added);
/**
* devm_remove_action_nowarn() - removes previously added custom action
* @dev: Device that owns the action
include/linux/device.h
-38
View File
@@ -281,44 +281,6 @@ int __must_check device_create_bin_file(struct device *dev,
void device_remove_bin_file(struct device *dev,
const struct bin_attribute *attr);
/* allows to add/remove a custom action to devres stack */
int devm_remove_action_nowarn(struct device *dev, void (*action)(void *), void *data);
/**
* devm_remove_action() - removes previously added custom action
* @dev: Device that owns the action
* @action: Function implementing the action
* @data: Pointer to data passed to @action implementation
*
* Removes instance of @action previously added by devm_add_action().
* Both action and data should match one of the existing entries.
*/
static inline
void devm_remove_action(struct device *dev, void (*action)(void *), void *data)
{
WARN_ON(devm_remove_action_nowarn(dev, action, data));
}
void devm_release_action(struct device *dev, void (*action)(void *), void *data);
int __devm_add_action(struct device *dev, void (*action)(void *), void *data, const char *name);
#define devm_add_action(dev, action, data) \
__devm_add_action(dev, action, data, #action)
static inline int __devm_add_action_or_reset(struct device *dev, void (*action)(void *),
void *data, const char *name)
{
int ret;
ret = __devm_add_action(dev, action, data, name);
if (ret)
action(data);
return ret;
}
#define devm_add_action_or_reset(dev, action, data) \
__devm_add_action_or_reset(dev, action, data, #action)
/**
* devm_alloc_percpu - Resource-managed alloc_percpu
* @dev: Device to allocate per-cpu memory for
include/linux/device/devres.h
+41
View File
@@ -8,6 +8,7 @@
#include <linux/overflow.h>
#include <linux/stdarg.h>
#include <linux/types.h>
#include <asm/bug.h>
struct device;
struct device_node;
@@ -126,4 +127,44 @@ void __iomem *devm_of_iomap(struct device *dev, struct device_node *node, int in
#endif
/* allows to add/remove a custom action to devres stack */
int devm_remove_action_nowarn(struct device *dev, void (*action)(void *), void *data);
/**
* devm_remove_action() - removes previously added custom action
* @dev: Device that owns the action
* @action: Function implementing the action
* @data: Pointer to data passed to @action implementation
*
* Removes instance of @action previously added by devm_add_action().
* Both action and data should match one of the existing entries.
*/
static inline
void devm_remove_action(struct device *dev, void (*action)(void *), void *data)
{
WARN_ON(devm_remove_action_nowarn(dev, action, data));
}
void devm_release_action(struct device *dev, void (*action)(void *), void *data);
int __devm_add_action(struct device *dev, void (*action)(void *), void *data, const char *name);
#define devm_add_action(dev, action, data) \
__devm_add_action(dev, action, data, #action)
static inline int __devm_add_action_or_reset(struct device *dev, void (*action)(void *),
void *data, const char *name)
{
int ret;
ret = __devm_add_action(dev, action, data, name);
if (ret)
action(data);
return ret;
}
#define devm_add_action_or_reset(dev, action, data) \
__devm_add_action_or_reset(dev, action, data, #action)
bool devm_is_action_added(struct device *dev, void (*action)(void *), void *data);
#endif /* _DEVICE_DEVRES_H_ */