sysfs_remove_link(&d->gd->kobj, "firmware-version");
aoedisk_rm_sysfs(struct aoedev *d){	sysfs_remove_link(&d->gd->kobj, "state");	sysfs_remove_link(&d->gd->kobj, "mac");	sysfs_remove_link(&d->gd->kobj, "netif");}