Re: [PATCH bpf-next v2 3/6] net: remove duplicate reuseport_lookup functions

[Lorenz Bauer <lmb@xxxxxxxxxxxxx>]

On Tue, Jun 13, 2023 at 4:33 PM Simon Horman <simon.horman@xxxxxxxxxxxx> wrote:
> >
> > +INDIRECT_CALLABLE_DECLARE(u32 udp_ehashfn(const struct net *,
> > +                                       const __be32, const __u16,
> > +                                       const __be32, const __be16));
> > +
>
> Hi Lorenz,
>
> Would this be better placed in a header file?
> GCC complains that in udp.c this function is neither static nor
> has a prototype.

Hi Simon,

The problem is that I don't want to pull in udp.h in
inet_hashtables.c, but that is the natural place to define that
function. I was hoping the macro magic would solve the problem, but oh
well. How do you make gcc complain, and what is the full error
message?

Thanks
Lorenz