Commit b1081ef7 authored by Danilo Krummrich's avatar Danilo Krummrich
Browse files

devres: add devres_node_remove() 



When the Rust Devres<T> container type is dropped we need a way to
remove the embedded struct devres_node from the device's node list.

Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260213220718.82835-4-dakr@kernel.org


Signed-off-by: default avatarDanilo Krummrich <dakr@kernel.org>
parent 9738ca7d

drivers/base/base.h

+1 −0
Original line number Diff line number Diff line
@@ -231,6 +231,7 @@ struct devres_node { 
void devres_node_init(struct devres_node *node, dr_node_release_t release,

		      dr_node_free_t free_node);

void devres_node_add(struct device *dev, struct devres_node *node);

bool devres_node_remove(struct device *dev, struct devres_node *node);

void devres_for_each_res(struct device *dev, dr_release_t release,

			 dr_match_t match, void *match_data,

			 void (*fn)(struct device *, void *, void *),

drivers/base/devres.c

+16 −0
Original line number Diff line number Diff line
@@ -365,6 +365,22 @@ void *devres_get(struct device *dev, void *new_res, 
}

EXPORT_SYMBOL_GPL(devres_get);



bool devres_node_remove(struct device *dev, struct devres_node *node)

{

	struct devres_node *__node;



	guard(spinlock_irqsave)(&dev->devres_lock);

	list_for_each_entry_reverse(__node, &dev->devres_head, entry) {

		if (__node == node) {

			list_del_init(&node->entry);

			devres_log(dev, node, "REM");

			return true;

		}

	}



	return false;

}



/**

 * devres_remove - Find a device resource and remove it

 * @dev: Device to find resource from