Wed, Aug 08, 2018 at 09:40:35AM CEST, vla...@mellanox.com wrote:
>
>On Tue 07 Aug 2018 at 16:36, Jiri Pirko <j...@resnulli.us> wrote:
>> Mon, Aug 06, 2018 at 08:54:23AM CEST, vla...@mellanox.com wrote:
>>
>> [...]
>>
>>>diff --git a/include/net/tc_act/tc_tunnel_key.h
>>>b/include/net/tc_act/tc_tunnel_key.h
>>>index 46b8c7f1c8d5..e6e475d788c6 100644
>>>--- a/include/net/tc_act/tc_tunnel_key.h
>>>+++ b/include/net/tc_act/tc_tunnel_key.h
>>>@@ -30,26 +30,47 @@ struct tcf_tunnel_key {
>>>
>>> static inline bool is_tcf_tunnel_set(const struct tc_action *a)
>>> {
>>>+ bool ret = false;
>>> #ifdef CONFIG_NET_CLS_ACT
>>> struct tcf_tunnel_key *t = to_tunnel_key(a);
>>>- struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
>>>+ struct tcf_tunnel_key_params *params;
>>>
>>>+ rcu_read_lock();
>>>+ params = rcu_dereference(t->params);
>>> if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY)
>>>- return params->tcft_action == TCA_TUNNEL_KEY_ACT_SET;
>>>+ ret = params->tcft_action == TCA_TUNNEL_KEY_ACT_SET;
>>>+ rcu_read_unlock();
>>> #endif
>>>- return false;
>>>+ return ret;
>>> }
>>>
>>> static inline bool is_tcf_tunnel_release(const struct tc_action *a)
>>
>> Why are these tunnel things in a mirred patch?
>
>Mistake during re-slit. Will move those to tunnel_key patch.
Are you sure that the changes are safe? I just quickly looked over it
and it smells:
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:
if (is_tcf_tunnel_set(a)) {
info = tcf_tunnel_info(a);
Why the "t->params" can't be nulled in the middle?
