netdev - Re: [PATCH net-next 3/4] net/sched: act_api: conditional notification of events

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Date: Mon, 4 Dec 2023 11:52:52 -0300
From: Pedro Tammela <pctammela@...atatu.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, jhs@...atatu.com, xiyou.wangcong@...il.com,
 jiri@...nulli.us, marcelo.leitner@...il.com, vladbu@...dia.com
Subject: Re: [PATCH net-next 3/4] net/sched: act_api: conditional notification
 of events

On 02/12/2023 16:21, Jakub Kicinski wrote:
> On Fri,  1 Dec 2023 17:43:13 -0300 Pedro Tammela wrote:
>> --- a/net/sched/act_api.c
>> +++ b/net/sched/act_api.c
>> @@ -1791,6 +1791,13 @@ tcf_reoffload_del_notify(struct net *net, struct tc_action *action)
>>   	struct sk_buff *skb;
>>   	int ret;
>>   
>> +	if (!tc_should_notify(net, 0)) {
>> +		ret = tcf_idr_release_unsafe(action);
>> +		if (ret == ACT_P_DELETED)
>> +			module_put(ops->owner);
>> +		return ret;
>> +	}
> 
> I fell like we can do better than this.. let's refactor this code a bit
> harder. Maybe factor out the alloc_skb() and fill()? Then add a wrapper
> around rtnetlink_send() which does nothing if skb is NULL?

Ack