On 17.06, Eric W. Biederman wrote: > From: Eric W Biederman <ebiederm@xxxxxxxxxxxx> > > Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> > --- > net/netfilter/core.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/net/netfilter/core.c b/net/netfilter/core.c > index 95456c09cf69..1b4eadc9c030 100644 > --- a/net/netfilter/core.c > +++ b/net/netfilter/core.c > @@ -134,7 +134,9 @@ void nf_unregister_hook(struct net *net, const struct nf_hook_ops *reg) > #ifdef HAVE_JUMP_LABEL > static_key_slow_dec(&nf_hooks_needed[reg->pf][reg->hooknum]); > #endif > - synchronize_net(); > + /* Don't wait if there are no packets in flight */ > + if (net->loopback_dev) > + synchronize_net(); I don't get this, could you please explain why there wouldn't be any packets in flight if there is no loopback_dev? > kfree(elem); > } > EXPORT_SYMBOL(nf_unregister_hook); > -- > 2.2.1 > -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
