netdev - Re: [PATCH iproute2-next 2/2] tc: add new attr TCA_EXT_WARN

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Date:   Fri, 13 Jan 2023 19:15:39 -0700
From:   David Ahern <dsahern@...nel.org>
To:     Hangbin Liu <liuhangbin@...il.com>, netdev@...r.kernel.org
Cc:     Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH iproute2-next 2/2] tc: add new attr TCA_EXT_WARN_MSG

On 1/12/23 8:46 PM, Hangbin Liu wrote:
> diff --git a/tc/tc_qdisc.c b/tc/tc_qdisc.c
> index 33a6665e..a84602b4 100644
> --- a/tc/tc_qdisc.c
> +++ b/tc/tc_qdisc.c
> @@ -346,6 +346,12 @@ int print_qdisc(struct nlmsghdr *n, void *arg)
>  			print_nl();
>  		}
>  	}
> +
> +	if (tb[TCA_EXT_WARN_MSG]) {
> +		print_string(PRINT_ANY, "Warn", "%s ", rta_getattr_str(tb[TCA_EXT_WARN_MSG]));
> +		print_nl();
> +	}
> +

given the repetition with the WARN_MSG, how about a helper in tc_util.c