[LTP] nfsstat02.sh: Properly fix netns enforcement

[Petr Vorel]

> Hi Petr,

> On Fri Oct 30 12:36:37 2026 +0100, Petr Vorel <pvorel@suse.cz> wrote:
> > nfsstat02.sh: Properly fix netns enforcement

> > diff --git a/testcases/network/nfs/nfsstat01/nfsstat02.sh b/testcases/network/nfs/nfsstat01/nfsstat02.sh
> > index 75a1a01b5..193a52b59 100755
> > --- a/testcases/network/nfs/nfsstat01/nfsstat02.sh
> > +++ b/testcases/network/nfs/nfsstat01/nfsstat02.sh
> > @@ -20,7 +20,7 @@ do_test()
> >  }

> >  # Force use of nested net namespace
> > -unset RHOST
> > +tst_net_use_netns || tst_net_unset_2_hosts_variables

> >  . nfs_lib.sh
> >  tst_run

> tst_net_use_netns and tst_net_unset_2_hosts_variables are called before
> nfs_lib.sh (which sources tst_net.sh) is sourced, so both functions are
> undefined at this point and fail with "not found". Calling them after
> sourcing nfs_lib.sh is also too late because tst_net.sh already evaluates
> RHOST and runs tst_net_setup_network at top level while being sourced. Set a
> variable such as TST_NET_FORCE_NETNS=1 before sourcing nfs_lib.sh and handle
> unsetting the 2-host variables inside tst_net.sh before the RHOST check.

I must have been really tired to overlook so obvious error.
TST_NET_FORCE_NETNS might be overkill, but I really prefer have that code in the
library than broken test due forget to set some variable.

Kind regards,
Petr