mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 15:11:31 +00:00
b2d2325661
Since commit 43a7206b09 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the wpan_phy_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Message-ID: <20240305-class_cleanup-wpan-v1-1-376f751fd481@marliere.net>
[changed prefix from wifi to ieee802154 by stefan@datenfreihafen.org]
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
112 lines
2.2 KiB
C
112 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
*
|
|
* Authors:
|
|
* Alexander Aring <aar@pengutronix.de>
|
|
*
|
|
* Based on: net/wireless/sysfs.c
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/rtnetlink.h>
|
|
|
|
#include <net/cfg802154.h>
|
|
|
|
#include "core.h"
|
|
#include "sysfs.h"
|
|
#include "rdev-ops.h"
|
|
|
|
static inline struct cfg802154_registered_device *
|
|
dev_to_rdev(struct device *dev)
|
|
{
|
|
return container_of(dev, struct cfg802154_registered_device,
|
|
wpan_phy.dev);
|
|
}
|
|
|
|
#define SHOW_FMT(name, fmt, member) \
|
|
static ssize_t name ## _show(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
char *buf) \
|
|
{ \
|
|
return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
|
|
} \
|
|
static DEVICE_ATTR_RO(name)
|
|
|
|
SHOW_FMT(index, "%d", wpan_phy_idx);
|
|
|
|
static ssize_t name_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct wpan_phy *wpan_phy = &dev_to_rdev(dev)->wpan_phy;
|
|
|
|
return sprintf(buf, "%s\n", dev_name(&wpan_phy->dev));
|
|
}
|
|
static DEVICE_ATTR_RO(name);
|
|
|
|
static void wpan_phy_release(struct device *dev)
|
|
{
|
|
struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
|
|
|
|
cfg802154_dev_free(rdev);
|
|
}
|
|
|
|
static struct attribute *pmib_attrs[] = {
|
|
&dev_attr_index.attr,
|
|
&dev_attr_name.attr,
|
|
NULL,
|
|
};
|
|
ATTRIBUTE_GROUPS(pmib);
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int wpan_phy_suspend(struct device *dev)
|
|
{
|
|
struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
|
|
int ret = 0;
|
|
|
|
if (rdev->ops->suspend) {
|
|
rtnl_lock();
|
|
ret = rdev_suspend(rdev);
|
|
rtnl_unlock();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wpan_phy_resume(struct device *dev)
|
|
{
|
|
struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
|
|
int ret = 0;
|
|
|
|
if (rdev->ops->resume) {
|
|
rtnl_lock();
|
|
ret = rdev_resume(rdev);
|
|
rtnl_unlock();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static SIMPLE_DEV_PM_OPS(wpan_phy_pm_ops, wpan_phy_suspend, wpan_phy_resume);
|
|
#define WPAN_PHY_PM_OPS (&wpan_phy_pm_ops)
|
|
#else
|
|
#define WPAN_PHY_PM_OPS NULL
|
|
#endif
|
|
|
|
const struct class wpan_phy_class = {
|
|
.name = "ieee802154",
|
|
.dev_release = wpan_phy_release,
|
|
.dev_groups = pmib_groups,
|
|
.pm = WPAN_PHY_PM_OPS,
|
|
};
|
|
|
|
int wpan_phy_sysfs_init(void)
|
|
{
|
|
return class_register(&wpan_phy_class);
|
|
}
|
|
|
|
void wpan_phy_sysfs_exit(void)
|
|
{
|
|
class_unregister(&wpan_phy_class);
|
|
}
|