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Date:	Tue, 6 Jan 2015 18:08:36 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	Thomas Haller <thaller@...hat.com>
Cc:	netdev@...r.kernel.org, stephen@...workplumber.org
Subject: Re: [patch iproute2 2/2] iplink: print out addrgenmode attribute

Tue, Jan 06, 2015 at 05:52:33PM CET, thaller@...hat.com wrote:
>On Tue, 2015-01-06 at 17:23 +0100, Jiri Pirko wrote:
>> addrgenmode is currently write only by ip. So display this information
>> if provided by kernel as well.
>
>>  
>> +static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
>> +{
>> +	struct rtattr *inet6_attr;
>> +	struct rtattr *tb[IFLA_INET6_MAX + 1];
>> +
>> +	inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
>> +	if (!inet6_attr)
>> +		return;
>> +
>> +	parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
>> +
>> +	if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
>> +		switch (rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE])) {
>> +		case IN6_ADDR_GEN_MODE_EUI64:
>> +			fprintf(fp, "addrgenmode eui64 ");
>
>eui64 is the default and the behavior of older kernels.
>
>I dunno, would it be better not to print the default case?


This prints only when show_details is on. So I believe it is ok to print
the default value of addrgenmode (same is done as for other things)


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