Re: [RFC 2/6] ipv4: add lockdep condition to fix for_each_entry

[Joel Fernandes]

On Sun, Jun 2, 2019 at 8:20 AM Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote:
>
> On Sun, Jun 2, 2019 at 3:00 AM Pavel Machek <pavel@xxxxxxx> wrote:
> >
> > On Sat 2019-06-01 18:27:34, Joel Fernandes (Google) wrote:
> > > Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
> >
> > This really needs to be merged to previous patch, you can't break
> > compilation in middle of series...
> >
> > Or probably you need hlist_for_each_entry_rcu_lockdep() macro with
> > additional argument, and switch users to it.
>
> Good point. I can also just add a temporary transition macro, and then
> remove it in the last patch. That way no new macro is needed.

Actually, no. There is no compilation break so I did not follow what
you mean. The fourth argument to the hlist_for_each_entry_rcu is
optional. The only thing that happens is new lockdep warnings will
arise which later parts of the series fix by passing in that fourth
argument.