On 2019-10-25 06:23, Honggang LI wrote: > +module_param(has_max_it_iu_size, bool, 0444); > +MODULE_PARM_DESC(has_max_it_iu_size, > + "Indicate the module supports max_it_iu_size login parameter"); Since the approach of this patch requires to add one new kernel parameter every time a new login parameter is added, I don't think this approach is future-proof. Has it been considered to export a list of all supported login parameters to user space? Thanks, Bart.