github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-12 16:18:45 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

devres: add devres_node_remove()

Browse Source 
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260213220718.82835-4-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Danilo Krummrich 2026-02-13 23:07:13 +01:00
parent 9738ca7df9
commit b1081ef74d
2 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/base/base.h
View File

@ -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 *),

16
drivers/base/devres.c
View File

@ -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