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Date:   Sun, 17 May 2020 21:10:17 -0400
From:   Roman Mashak <>
To:     Cong Wang <>
Cc:     David Miller <>,
        Linux Kernel Network Developers <>,, Jamal Hadi Salim <>,
        Jiri Pirko <>
Subject: Re: [PATCH net 1/1] net sched: fix reporting the first-time use timestamp

Cong Wang <> writes:

> On Sun, May 17, 2020 at 5:47 AM Roman Mashak <> wrote:
>> When a new action is installed, firstuse field of 'tcf_t' is explicitly set
>> to 0. Value of zero means "new action, not yet used"; as a packet hits the
>> action, 'firstuse' is stamped with the current jiffies value.
>> tcf_tm_dump() should return 0 for firstuse if action has not yet been hit.
> Your patch makes sense to me.
> Just one more thing, how about 'lastuse'? It is initialized with jiffies,
> not 0, it seems we should initialize it to 0 too, as it is not yet used?

Yes, exactly. I was planning to send a separate patch for this.

Thanks for review, Cong.

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