From: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Daniel Scally <djrscally@gmail.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>
Cc: linux-acpi@vger.kernel.org, driver-core@lists.linux.dev,
linux-kernel@vger.kernel.org, brgl@kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Subject: [PATCH] software node: provide wrappers around kobject_get/put()
Date: Fri, 24 Apr 2026 14:42:50 +0200 [thread overview]
Message-ID: <20260424124250.92890-1-bartosz.golaszewski@oss.qualcomm.com> (raw)
Make the code more readable by avoid constant dereferencing of the
swnode's kobject when managing references. Provide wrappers that take
struct swnode * as argument and make them hide that logic.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
---
drivers/base/swnode.c | 36 ++++++++++++++++++++++--------------
1 file changed, 22 insertions(+), 14 deletions(-)
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index a19f8f722bc8e..503908c04ae66 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -374,20 +374,28 @@ EXPORT_SYMBOL_GPL(property_entries_free);
/* -------------------------------------------------------------------------- */
/* fwnode operations */
+static void swnode_get(struct swnode *swnode)
+{
+ kobject_get(&swnode->kobj);
+}
+
+static void swnode_put(struct swnode *swnode)
+{
+ kobject_put(&swnode->kobj);
+}
+
static struct fwnode_handle *software_node_get(struct fwnode_handle *fwnode)
{
struct swnode *swnode = to_swnode(fwnode);
- kobject_get(&swnode->kobj);
+ swnode_get(swnode);
return &swnode->fwnode;
}
static void software_node_put(struct fwnode_handle *fwnode)
{
- struct swnode *swnode = to_swnode(fwnode);
-
- kobject_put(&swnode->kobj);
+ swnode_put(to_swnode(fwnode));
}
static bool software_node_property_present(const struct fwnode_handle *fwnode,
@@ -493,7 +501,7 @@ software_node_get_named_child_node(const struct fwnode_handle *fwnode,
list_for_each_entry(child, &swnode->children, entry) {
if (!strcmp(childname, kobject_name(&child->kobj))) {
- kobject_get(&child->kobj);
+ swnode_get(child);
return &child->fwnode;
}
}
@@ -737,7 +745,7 @@ software_node_find_by_name(const struct software_node *parent, const char *name)
swnode = kobj_to_swnode(k);
if (parent == swnode->node->parent && swnode->node->name &&
!strcmp(name, swnode->node->name)) {
- kobject_get(&swnode->kobj);
+ swnode_get(swnode);
break;
}
swnode = NULL;
@@ -835,13 +843,13 @@ swnode_register(const struct software_node *node, struct swnode *parent,
parent ? &parent->kobj : NULL,
"node%d", swnode->id);
if (ret) {
- kobject_put(&swnode->kobj);
+ swnode_put(swnode);
return ERR_PTR(ret);
}
/*
* Assign the flag only in the successful case, so
- * the above kobject_put() won't mess up with properties.
+ * the above swnode_put() won't mess up with properties.
*/
swnode->allocated = allocated;
@@ -978,7 +986,7 @@ void fwnode_remove_software_node(struct fwnode_handle *fwnode)
if (!swnode)
return;
- kobject_put(&swnode->kobj);
+ swnode_put(swnode);
}
EXPORT_SYMBOL_GPL(fwnode_remove_software_node);
@@ -1002,7 +1010,7 @@ int device_add_software_node(struct device *dev, const struct software_node *nod
swnode = software_node_to_swnode(node);
if (swnode) {
- kobject_get(&swnode->kobj);
+ swnode_get(swnode);
} else {
ret = software_node_register(node);
if (ret)
@@ -1044,7 +1052,7 @@ void device_remove_software_node(struct device *dev)
software_node_notify_remove(dev);
set_secondary_fwnode(dev, NULL);
- kobject_put(&swnode->kobj);
+ swnode_put(swnode);
}
EXPORT_SYMBOL_GPL(device_remove_software_node);
@@ -1097,7 +1105,7 @@ void software_node_notify(struct device *dev)
if (!swnode)
return;
- kobject_get(&swnode->kobj);
+ swnode_get(swnode);
ret = sysfs_create_link(&dev->kobj, &swnode->kobj, "software_node");
if (ret)
return;
@@ -1119,11 +1127,11 @@ void software_node_notify_remove(struct device *dev)
sysfs_remove_link(&swnode->kobj, dev_name(dev));
sysfs_remove_link(&dev->kobj, "software_node");
- kobject_put(&swnode->kobj);
+ swnode_put(swnode);
if (swnode->managed) {
set_secondary_fwnode(dev, NULL);
- kobject_put(&swnode->kobj);
+ swnode_put(swnode);
}
}
--
2.47.3
next reply other threads:[~2026-04-24 12:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-24 12:42 Bartosz Golaszewski [this message]
2026-04-24 13:33 ` [PATCH] software node: provide wrappers around kobject_get/put() Andy Shevchenko
2026-04-24 13:43 ` Bartosz Golaszewski
2026-04-24 15:32 ` Andy Shevchenko
2026-04-27 8:15 ` Bartosz Golaszewski
2026-04-27 8:34 ` Andy Shevchenko
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