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Date:   Mon, 18 May 2020 09:10:56 -0400
From:   Jamal Hadi Salim <jhs@...atatu.com>
To:     Roman Mashak <mrv@...atatu.com>, dsahern@...il.com
Cc:     stephen@...workplumber.org, netdev@...r.kernel.org,
        kernel@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us
Subject: Re: [PATCH iproute2-next 1/1] tc: report time an action was first
 used

On 2020-05-17 9:28 a.m., Roman Mashak wrote:
> Have print_tm() dump firstuse value along with install, lastuse
> and expires.
> 
> Signed-off-by: Roman Mashak <mrv@...atatu.com>
> ---
>   tc/tc_util.c | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/tc/tc_util.c b/tc/tc_util.c
> index 12f865cc71bf..f6aa2ed552a9 100644
> --- a/tc/tc_util.c
> +++ b/tc/tc_util.c
> @@ -760,6 +760,11 @@ void print_tm(FILE *f, const struct tcf_t *tm)
>   		print_uint(PRINT_FP, NULL, " used %u sec",
>   			   (unsigned int)(tm->lastuse/hz));
>   	}
> +	if (tm->firstuse != 0) {
> +		print_uint(PRINT_JSON, "first_used", NULL, tm->firstuse);
> +		print_uint(PRINT_FP, NULL, " firstused %u sec",
> +			   (unsigned int)(tm->firstuse/hz));
> +	}

Maybe an else as well to print something like "firstused NEVER"
or alternatively just print 0 (to be backward compatible on old
kernels it will never be zero).

cheers,
jamal

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