/**
* bus_add_driver - Add a driver to the bus.
* @drv: driver.
*
*/
int bus_add_driver(struct device_driver * drv)
{
struct bus_type * bus = get_bus(drv->bus);
int error = 0;
if (bus) {
pr_debug("bus %s: add driver %s\n", bus->name, drv->name);
error = kobject_set_name(&drv->kobj, "%s", drv->name);
if (error) {
put_bus(bus);
return error;
}
drv->kobj.kset = &bus->drivers;
if ((error = kobject_register(&drv->kobj))) {
put_bus(bus);
return error;
}
driver_attach(drv);
klist_add_tail(&drv->knode_bus, &bus->klist_drivers);
module_add_driver(drv->owner, drv);
driver_add_attrs(bus, drv);
add_bind_files(drv);
}
return error;
}
/* Initialize the main sysfs entries for edac:
* /sys/devices/system/edac
*
* and children
*
* Return: 0 SUCCESS
* !0 FAILURE
*/
static int edac_sysfs_memctrl_setup(void)
{
int err=0;
debugf1("%s()\n", __func__);
/* create the /sys/devices/system/edac directory */
err = sysdev_class_register(&edac_class);
if (!err) {
/* Init the MC's kobject */
memset(&edac_memctrl_kobj, 0, sizeof (edac_memctrl_kobj));
edac_memctrl_kobj.parent = &edac_class.kset.kobj;
edac_memctrl_kobj.ktype = &ktype_memctrl;
/* generate sysfs "..../edac/mc" */
err = kobject_set_name(&edac_memctrl_kobj,"mc");
if (!err) {
/* FIXME: maybe new sysdev_create_subdir() */
err = kobject_register(&edac_memctrl_kobj);
if (err)
debugf1("Failed to register '.../edac/mc'\n");
else
debugf1("Registered '.../edac/mc' kobject\n");
}
} else
debugf1("%s() error=%d\n", __func__, err);
return err;
}
int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
struct kobject *parent, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
kobject_set_name_vargs(kobj, fmt, args);
va_end(args);
kobj->parent = parent;
kobj->ktype = ktype;
return kobject_register(kobj);
}
/**
* bus_add_driver - Add a driver to the bus.
* @drv: driver.
*
*/
int bus_add_driver(struct device_driver *drv)
{
struct bus_type * bus = bus_get(drv->bus);
int error = 0;
if (!bus)
return -EINVAL;
pr_debug("bus %s: add driver %s\n", bus->name, drv->name);
error = kobject_set_name(&drv->kobj, "%s", drv->name);
if (error)
goto out_put_bus;
drv->kobj.kset = &bus->drivers;
error = kobject_register(&drv->kobj);
if (error)
goto out_put_bus;
//如果总线支持自动探测，则调用driver_attach。
if (drv->bus->drivers_autoprobe)
{
error = driver_attach(drv);
if (error)
goto out_unregister;
}
//将该驱动程序添加到总线上注册的所有驱动程序的链表中
klist_add_tail(&drv->knode_bus, &bus->klist_drivers);
module_add_driver(drv->owner, drv);
error = driver_create_file(drv, &driver_attr_uevent);
if (error)
{
printk(KERN_ERR "%s: uevent attr (%s) failed\n", __FUNCTION__, drv->name);
}
error = driver_add_attrs(bus, drv);
if (error)
{
/* How the hell do we get out of this pickle? Give up */
printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n", __FUNCTION__, drv->name);
}
error = add_bind_files(drv);
if (error)
{
/* Ditto */
printk(KERN_ERR "%s: add_bind_files(%s) failed\n", __FUNCTION__, drv->name);
}
return error;
out_unregister:
kobject_unregister(&drv->kobj);
out_put_bus:
bus_put(bus);
return error;
}
int rfs_sysfs_create(void)
{
int rv;
rfs_kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
if (!rfs_kobj)
return -ENOMEM;
kobject_init(rfs_kobj);
rfs_kobj->ktype = &rfs_kobj_ktype;
rfs_kobj->parent = &fs_subsys.kobj;
rv = kobject_set_name(rfs_kobj, "%s", "redirfs");
if (rv) {
kobject_put(rfs_kobj);
return rv;
}
rv = kobject_register(rfs_kobj);
if (rv) {
kobject_put(rfs_kobj);
return rv;
}
rv = -ENOMEM;
rfs_flt_kset = kzalloc(sizeof(struct kset), GFP_KERNEL);
if (!rfs_flt_kset)
goto err_kobj;
kobject_init(&rfs_flt_kset->kobj);
rfs_flt_kset->kobj.ktype = &rfs_kobj_ktype;
rfs_flt_kset->kobj.parent = rfs_kobj;
rv = kobject_set_name(&rfs_flt_kset->kobj, "%s", "filters");
if (rv)
goto err_kset;
rv = kset_register(rfs_flt_kset);
if (rv)
goto err_kset;
return 0;
err_kset:
kset_put(rfs_flt_kset);
err_kobj:
kobject_unregister(rfs_kobj);
return rv;
}
static int
edd_device_register(struct edd_device *edev, int i)
{
int error;
if (!edev)
return 1;
memset(edev, 0, sizeof (*edev));
edd_dev_set_info(edev, &edd[i]);
snprintf(edev->kobj.name, EDD_DEVICE_NAME_SIZE, "int13_dev%02x",
edd[i].device);
kobj_set_kset_s(edev,edd_subsys);
error = kobject_register(&edev->kobj);
if (!error)
edd_populate_dir(edev);
return error;
}
/**
* bus_add_driver - Add a driver to the bus.
* @drv: driver.
*
*/
int bus_add_driver(struct device_driver *drv)
{
struct bus_type * bus = get_bus(drv->bus);
int error = 0;
if (!bus)
return 0;
pr_debug("bus %s: add driver %s\n", bus->name, drv->name);
error = kobject_set_name(&drv->kobj, "%s", drv->name);
if (error)
goto out_put_bus;
drv->kobj.kset = &bus->drivers;
if ((error = kobject_register(&drv->kobj)))
goto out_put_bus;
error = driver_attach(drv);
if (error)
goto out_unregister;
klist_add_tail(&drv->knode_bus, &bus->klist_drivers);
module_add_driver(drv->owner, drv);
error = driver_add_attrs(bus, drv);
if (error) {
/* How the hell do we get out of this pickle? Give up */
printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
__FUNCTION__, drv->name);
}
error = add_bind_files(drv);
if (error) {
/* Ditto */
printk(KERN_ERR "%s: add_bind_files(%s) failed\n",
__FUNCTION__, drv->name);
}
return error;
out_unregister:
kobject_unregister(&drv->kobj);
out_put_bus:
put_bus(bus);
return error;
}
int gdlm_kobject_setup(struct gdlm_ls *ls, struct kobject *fskobj)
{
int error;
error = kobject_set_name(&ls->kobj, "%s", "lock_module");
if (error) {
log_error("can't set kobj name %d", error);
return error;
}
ls->kobj.kset = &gdlm_kset;
ls->kobj.ktype = &gdlm_ktype;
ls->kobj.parent = fskobj;
error = kobject_register(&ls->kobj);
if (error)
log_error("can't register kobj %d", error);
return error;
}
/*
* Add entries in sysfs onto the existing network class device
* for the bridge.
* Adds a attribute group "bridge" containing tuning parameters.
* Binary attribute containing the forward table
* Sub directory to hold links to interfaces.
*
* Note: the ifobj exists only to be a subdirectory
* to hold links. The ifobj exists in same data structure
* as it's parent the bridge so reference counting works.
*/
int br_sysfs_addbr(struct net_device *dev)
{
struct kobject *brobj = &dev->class_dev.kobj;
struct net_bridge *br = netdev_priv(dev);
int err;
err = sysfs_create_group(brobj, &bridge_group);
if (err) {
pr_info("%s: can't create group %s/%s\n",
__FUNCTION__, dev->name, bridge_group.name);
goto out1;
}
err = sysfs_create_bin_file(brobj, &bridge_forward);
if (err) {
pr_info("%s: can't create attribue file %s/%s\n",
__FUNCTION__, dev->name, bridge_forward.attr.name);
goto out2;
}
kobject_set_name(&br->ifobj, SYSFS_BRIDGE_PORT_SUBDIR);
br->ifobj.ktype = NULL;
br->ifobj.kset = NULL;
br->ifobj.parent = brobj;
err = kobject_register(&br->ifobj);
if (err) {
pr_info("%s: can't add kobject (directory) %s/%s\n",
__FUNCTION__, dev->name, br->ifobj.name);
goto out3;
}
return 0;
out3:
sysfs_remove_bin_file(&dev->class_dev.kobj, &bridge_forward);
out2:
sysfs_remove_group(&dev->class_dev.kobj, &bridge_group);
out1:
return err;
}
/*
* kernel_param_sysfs_setup - wrapper for built-in params support
*/
static void __init kernel_param_sysfs_setup(const char *name,
struct kernel_param *kparam,
unsigned int num_params,
unsigned int name_skip)
{
struct module_kobject *mk;
mk = kmalloc(sizeof(struct module_kobject), GFP_KERNEL);
memset(mk, 0, sizeof(struct module_kobject));
mk->mod = THIS_MODULE;
kobj_set_kset_s(mk, module_subsys);
kobject_set_name(&mk->kobj, name);
kobject_register(&mk->kobj);
/* no need to keep the kobject if no parameter is exported */
if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) {
kobject_unregister(&mk->kobj);
kfree(mk);
}
}
int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
{
int error;
sdp->sd_kobj.kset = &gfs2_kset;
sdp->sd_kobj.ktype = &gfs2_ktype;
error = kobject_set_name(&sdp->sd_kobj, "%s", sdp->sd_table_name);
if (error)
goto fail;
error = kobject_register(&sdp->sd_kobj);
if (error)
goto fail;
error = sysfs_create_group(&sdp->sd_kobj, &lockstruct_group);
if (error)
goto fail_reg;
error = sysfs_create_group(&sdp->sd_kobj, &args_group);
if (error)
goto fail_lockstruct;
error = sysfs_create_group(&sdp->sd_kobj, &tune_group);
if (error)
goto fail_args;
return 0;
fail_args:
sysfs_remove_group(&sdp->sd_kobj, &args_group);
fail_lockstruct:
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
fail_reg:
kobject_unregister(&sdp->sd_kobj);
fail:
fs_err(sdp, "error %d adding sysfs files", error);
return error;
}
/**
* pdcs_register_pathentries - Prepares path entries kobjects for sysfs usage.
*
* It creates kobjects corresponding to each path entry with nice sysfs
* links to the real device. This is where the magic takes place: when
* registering the subsystem attributes during module init, each kobject hereby
* created will show in the sysfs tree as a folder containing files as defined
* by path_subsys_attr[].
*/
static inline int __init
pdcs_register_pathentries(void)
{
unsigned short i;
struct pdcspath_entry *entry;
int err;
/* Initialize the entries rw_lock before anything else */
for (i = 0; (entry = pdcspath_entries[i]); i++)
rwlock_init(&entry->rw_lock);
for (i = 0; (entry = pdcspath_entries[i]); i++) {
write_lock(&entry->rw_lock);
err = pdcspath_fetch(entry);
write_unlock(&entry->rw_lock);
if (err < 0)
continue;
if ((err = kobject_set_name(&entry->kobj, "%s", entry->name)))
return err;
kobj_set_kset_s(entry, paths_subsys);
if ((err = kobject_register(&entry->kobj)))
return err;
/* kobject is now registered */
write_lock(&entry->rw_lock);
entry->ready = 2;
/* Add a nice symlink to the real device */
if (entry->dev)
sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
write_unlock(&entry->rw_lock);
}
return 0;
}
/**
* edac_sysfs_pci_setup()
*
*/
static int edac_sysfs_pci_setup(void)
{
int err;
debugf1("%s()\n", __func__);
memset(&edac_pci_kobj, 0, sizeof(edac_pci_kobj));
edac_pci_kobj.parent = &edac_class.kset.kobj;
edac_pci_kobj.ktype = &ktype_edac_pci;
err = kobject_set_name(&edac_pci_kobj, "pci");
if (!err) {
/* Instanstiate the csrow object */
/* FIXME: maybe new sysdev_create_subdir() */
err = kobject_register(&edac_pci_kobj);
if (err)
debugf1("Failed to register '.../edac/pci'\n");
else
debugf1("Registered '.../edac/pci' kobject\n");
}
return err;
}
/*
* Helper function for ibft_register_kobjects.
*/
static int __init ibft_create_kobject(struct ibft_table_header *header,
struct ibft_hdr *hdr,
struct list_head *list)
{
struct ibft_kobject *ibft_kobj = NULL;
struct ibft_nic *nic = (struct ibft_nic *)hdr;
struct pci_dev *pci_dev;
int rc = 0;
ibft_kobj = kzalloc(sizeof(*ibft_kobj), GFP_KERNEL);
if (!ibft_kobj)
return -ENOMEM;
ibft_kobj->header = header;
ibft_kobj->hdr = hdr;
switch (hdr->id) {
case id_initiator:
rc = ibft_verify_hdr("initiator", hdr, id_initiator,
sizeof(*ibft_kobj->initiator));
break;
case id_nic:
rc = ibft_verify_hdr("ethernet", hdr, id_nic,
sizeof(*ibft_kobj->nic));
break;
case id_target:
rc = ibft_verify_hdr("target", hdr, id_target,
sizeof(*ibft_kobj->tgt));
break;
case id_reserved:
case id_control:
case id_extensions:
/* Fields which we don't support. Ignore them */
rc = 1;
break;
default:
printk(KERN_ERR "iBFT has unknown structure type (%d). " \
"Report this bug to your vendor!\n", hdr->id);
rc = 1;
break;
}
if (rc) {
kfree(ibft_kobj);
goto out_invalid_struct;
}
/* kobject fief. We will let the reference counter do the job
of deleting its name if we fail here. */
kobj_set_kset_s(ibft_kobj, ibft_subsys);
ibft_kobj->kobj.ktype = &ibft_ktype;
rc = kobject_set_name(&ibft_kobj->kobj,
ibft_id_names[hdr->id],
hdr->index);
if (rc)
goto kobject_do_put;
rc = kobject_register(&ibft_kobj->kobj);
if (rc)
goto kobject_do_put;
if (hdr->id == id_nic) {
pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
(nic->pci_bdf & 0xff));
if (pci_dev) {
rc = sysfs_create_link(&ibft_kobj->kobj,
&pci_dev->dev.kobj, "device");
pci_dev_put(pci_dev);
}
}
