The callbacks in struct class namespace() and get_ownership() do not
modify the struct device passed to them, so mark the pointer as constant
and fix up all callbacks in the kernel to have the correct function
signature.
This helps make it more obvious what calls and callbacks do, and do not,
modify structures passed to them.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20221001165426.2690912-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
static const void *device_namespace(struct kobject *kobj)
{
- struct device *dev = kobj_to_dev(kobj);
+ const struct device *dev = kobj_to_dev(kobj);
const void *ns = NULL;
if (dev->class && dev->class->ns_type)
static void device_get_ownership(struct kobject *kobj, kuid_t *uid, kgid_t *gid)
{
- struct device *dev = kobj_to_dev(kobj);
+ const struct device *dev = kobj_to_dev(kobj);
if (dev->class && dev->class->get_ownership)
dev->class->get_ownership(dev, uid, gid);
return 0;
}
-static const void *net_namespace(struct device *d)
+static const void *net_namespace(const struct device *d)
{
- struct ib_core_device *coredev =
+ const struct ib_core_device *coredev =
container_of(d, struct ib_core_device, dev);
return read_pnet(&coredev->rdma_net);
static dev_t ipvtap_major;
static struct cdev ipvtap_cdev;
-static const void *ipvtap_net_namespace(struct device *d)
+static const void *ipvtap_net_namespace(const struct device *d)
{
- struct net_device *dev = to_net_dev(d->parent);
+ const struct net_device *dev = to_net_dev(d->parent);
return dev_net(dev);
}
*/
static dev_t macvtap_major;
-static const void *macvtap_net_namespace(struct device *d)
+static const void *macvtap_net_namespace(const struct device *d)
{
- struct net_device *dev = to_net_dev(d->parent);
+ const struct net_device *dev = to_net_dev(d->parent);
return dev_net(dev);
}
int (*shutdown_pre)(struct device *dev);
const struct kobj_ns_type_operations *ns_type;
- const void *(*namespace)(struct device *dev);
+ const void *(*namespace)(const struct device *dev);
- void (*get_ownership)(struct device *dev, kuid_t *uid, kgid_t *gid);
+ void (*get_ownership)(const struct device *dev, kuid_t *uid, kgid_t *gid);
const struct dev_pm_ops *pm;
netdev_freemem(dev);
}
-static const void *net_namespace(struct device *d)
+static const void *net_namespace(const struct device *d)
{
- struct net_device *dev = to_net_dev(d);
+ const struct net_device *dev = to_net_dev(d);
return dev_net(dev);
}
-static void net_get_ownership(struct device *d, kuid_t *uid, kgid_t *gid)
+static void net_get_ownership(const struct device *d, kuid_t *uid, kgid_t *gid)
{
- struct net_device *dev = to_net_dev(d);
+ const struct net_device *dev = to_net_dev(d);
const struct net *net = dev_net(dev);
net_ns_get_ownership(net, uid, gid);
#define WIPHY_PM_OPS NULL
#endif
-static const void *wiphy_namespace(struct device *d)
+static const void *wiphy_namespace(const struct device *d)
{
struct wiphy *wiphy = container_of(d, struct wiphy, dev);