/*
* module_param_sysfs_setup - setup sysfs support for one module
* @mod: module
* @kparam: module parameters (array)
* @num_params: number of module parameters
*
* Adds sysfs entries for module parameters, and creates a link from
* /sys/module/[mod->name]/parameters to /sys/parameters/[mod->name]/
*/
int module_param_sysfs_setup(struct module *mod,
struct kernel_param *kparam,
unsigned int num_params)
{
struct module_param_attrs *mp;
mp = param_sysfs_setup(&mod->mkobj, kparam, num_params, 0);
if (IS_ERR(mp))
return PTR_ERR(mp);
mod->param_attrs = mp;
return 0;
}
/*
* 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;
int ret;
mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL);
BUG_ON(!mk);
mk->mod = THIS_MODULE;
kobj_set_kset_s(mk, module_subsys);
kobject_set_name(&mk->kobj, name);
kobject_init(&mk->kobj);
ret = kobject_add(&mk->kobj);
BUG_ON(ret < 0);
param_sysfs_setup(mk, kparam, num_params, name_skip);
kobject_uevent(&mk->kobj, KOBJ_ADD);
}
/*
* 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);
}
}
