From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [patch iproute2] iproute2: ipa: show switch id
Date: Wed, 8 Jul 2015 18:05:10 -0700
Message-ID: <20150708180510.54c90e74@urahara>
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Cc: netdev@vger.kernel.org
To: Jiri Pirko <jiri@resnulli.us>
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On Wed,  8 Jul 2015 17:08:18 +0200
Jiri Pirko <jiri@resnulli.us> wrote:

>  
> +	if (tb[IFLA_PHYS_SWITCH_ID]) {
> +		SPRINT_BUF(b1);
> +		fprintf(fp, "switchid %s ",
> +			hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
> +				      RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
> +				      b1, sizeof(b1)));
> +	}
> +

Ok, but why hex?