netdev - Re: [PATCH iproute2 5.11 2/2] iplink_can: fix format output for details with statistics

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Message-ID: <20201226094832.2b12a20e@hermes.local>
Date:   Sat, 26 Dec 2020 09:48:32 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Oliver Hartkopp <socketcan@...tkopp.net>
Cc:     netdev@...r.kernel.org, linux-can@...r.kernel.org
Subject: Re: [PATCH iproute2 5.11 2/2] iplink_can: fix format output for
 details with statistics

On Fri, 25 Dec 2020 20:10:15 +0100
Oliver Hartkopp <socketcan@...tkopp.net> wrote:

> @@ -315,10 +320,12 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
>  			  "restart_ms",
>  			  "restart-ms %d ",
>  			  *restart_ms);
>  	}
>  
> +	fprintf(f, "\n        ");
> +
That will print in both JSON and non-JSON mode. You don't want to do that.
It also will break in single-line mode.

The iplink_can code has way too many if (is_json_context()) ...
which can lead to differences in output.

Ideally it should have no instances of "fprintf(f, ..."