Messages in this thread | | | Date | Sun, 7 Jun 2020 18:02:46 +0200 | From | Andrew Lunn <> | Subject | Re: [RFC PATCH net-next 04/10] ethtool: Add link extended state |
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> @@ -108,6 +131,12 @@ static int linkstate_reply_size(const struct ethnl_req_info *req_base, > if (data->sqi_max != -EOPNOTSUPP) > len += nla_total_size(sizeof(u32)); > > + if (data->ext_state_provided) > + len += sizeof(u8); /* LINKSTATE_EXT_STATE */ > + > + if (data->ethtool_ext_state_info.__ext_substate) > + len += sizeof(u8); /* LINKSTATE_EXT_SUBSTATE */ > +
This looks wrong. A u8 attribute takes up a lot more space than sizeof(u8) because of the TLV overheads. That is what the nla_total_size() is for.
Andrew
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