Wed, Jun 21, 2023 at 01:18:59PM CEST, poros@xxxxxxxxxx wrote: >Arkadiusz Kubalewski píše v Pá 09. 06. 2023 v 14:18 +0200: >> From: Vadim Fedorenko <vadim.fedorenko@xxxxxxxxx> [...] Could you perhaps cut out the text you don't comment? Saves some time finding your reply. >> +static int >> +dpll_set_from_nlattr(struct dpll_device *dpll, struct genl_info >> *info) >> +{ >> + const struct dpll_device_ops *ops = dpll_device_ops(dpll); >> + struct nlattr *tb[DPLL_A_MAX + 1]; >> + int ret = 0; >> + >> + nla_parse(tb, DPLL_A_MAX, genlmsg_data(info->genlhdr), >> + genlmsg_len(info->genlhdr), NULL, info->extack); >> + if (tb[DPLL_A_MODE]) { >Hi, > >Here should be something like: > if (!ops->mode_set) > return -EOPNOTSUPP; Why? All drivers implement that. I believe that it's actullaly better that way. For a called setting up the same mode it is the dpll in, there should be 0 return by the driver. Note that driver holds this value. I'd like to keep this code as it is. [...]