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Date:   Thu, 15 Apr 2021 14:23:11 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Paolo Lungaroni <paolo.lungaroni@...roma2.it>
Cc:     David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>,
        Stefano Salsano <stefano.salsano@...roma2.it>,
        Ahmed Abdelsalam <ahabdels.dev@...il.com>,
        Andrea Mayer <andrea.mayer@...roma2.it>
Subject: Re: [RFC iproute2-next v2] seg6: add counters support for SRv6
 Behaviors

On Thu, 15 Apr 2021 20:06:43 +0200
Paolo Lungaroni <paolo.lungaroni@...roma2.it> wrote:

> +	if (is_json_context())
> +		open_json_object("stats64");
> +
> +	if (tb[SEG6_LOCAL_CNT_PACKETS]) {
> +		packets = rta_getattr_u64(tb[SEG6_LOCAL_CNT_PACKETS]);
> +		if (is_json_context()) {
> +			print_u64(PRINT_JSON, "packets", NULL, packets);
> +		} else {
> +			print_string(PRINT_FP, NULL, "%s ", "packets");
> +			print_num(fp, 1, packets);
> +		}
> +	}
> +
> +	if (tb[SEG6_LOCAL_CNT_BYTES]) {
> +		bytes = rta_getattr_u64(tb[SEG6_LOCAL_CNT_BYTES]);
> +		if (is_json_context()) {
> +			print_u64(PRINT_JSON, "bytes", NULL, bytes);
> +		} else {
> +			print_string(PRINT_FP, NULL, "%s ", "bytes");
> +			print_num(fp, 1, bytes);
> +		}
> +	}
> +
> +	if (tb[SEG6_LOCAL_CNT_ERRORS]) {
> +		errors = rta_getattr_u64(tb[SEG6_LOCAL_CNT_ERRORS]);
> +		if (is_json_context()) {
> +			print_u64(PRINT_JSON, "errors", NULL, errors);
> +		} else {
> +			print_string(PRINT_FP, NULL, "%s ", "errors");
> +			print_num(fp, 1, errors);
> +		}
> +	}
> +
> +	if (is_json_context())
> +		close_json_object();


The code would be cleaner with doing if (is_json_context()) once at outer loop.
See print_vf_stats64.

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