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From:   Petr Machata <petrm@nvidia.com>
To:     Daniel Machon <daniel.machon@microchip.com>
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Subject: Re: [PATCH net-next v2 2/6] net: dcb: add new common function for
 set/del of app/rewr entries
Date:   Wed, 18 Jan 2023 11:26:53 +0100
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Daniel Machon <daniel.machon@microchip.com> writes:

> In preparation for DCB rewrite. Add a new function for setting and
> deleting both app and rewrite entries. Moving this into a separate
> function reduces duplicate code, as both type of entries requires the
> same set of checks. The function will now iterate through a configurable
> nested attribute (app or rewrite attr), validate each attribute and call
> the appropriate set- or delete function.
>
> Note that this function always checks for nla_len(attr_itr) <
> sizeof(struct dcb_app), which was only done in dcbnl_ieee_set and not in
> dcbnl_ieee_del prior to this patch. This means, that any userspace tool
> that used to shove in data < sizeof(struct dcb_app) would now receive
> -ERANGE.
>
> Signed-off-by: Daniel Machon <daniel.machon@microchip.com>

Reviewed-by: Petr Machata <petrm@nvidia.com>