netdev - Re: [patch iproute2] tc: move action cookie print out of the stats if

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Date:   Sat, 25 Nov 2017 09:35:12 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org, jhs@...atatu.com, mlxsw@...lanox.com
Subject: Re: [patch iproute2] tc: move action cookie print out of the stats if

Fri, Nov 24, 2017 at 06:11:42PM CET, stephen@...workplumber.org wrote:
>On Fri, 24 Nov 2017 09:28:21 +0100
>Jiri Pirko <jiri@...nulli.us> wrote:
>
>> From: Jiri Pirko <jiri@...lanox.com>
>> 
>> Cookie print was made dependent on show_stats for no good reason. Fix
>> this bu pushing cookie print ot of the stats if.
>> 
>> Fixes: fd8b3d2c1b9b ("actions: Add support for user cookies")
>> Signed-off-by: Jiri Pirko <jiri@...lanox.com>
>> ---
>>  tc/m_action.c | 17 ++++++++---------
>>  1 file changed, 8 insertions(+), 9 deletions(-)
>> 
>> diff --git a/tc/m_action.c b/tc/m_action.c
>> index 0dce97f..c2fc4f1 100644
>> --- a/tc/m_action.c
>> +++ b/tc/m_action.c
>> @@ -301,19 +301,18 @@ static int tc_print_one_action(FILE *f, struct rtattr *arg)
>>  		return err;
>>  
>>  	if (show_stats && tb[TCA_ACT_STATS]) {
>> -
>>  		fprintf(f, "\tAction statistics:\n");
>>  		print_tcstats2_attr(f, tb[TCA_ACT_STATS], "\t", NULL);
>> -		if (tb[TCA_ACT_COOKIE]) {
>> -			int strsz = RTA_PAYLOAD(tb[TCA_ACT_COOKIE]);
>> -			char b1[strsz * 2 + 1];
>> -
>> -			fprintf(f, "\n\tcookie len %d %s ", strsz,
>> -				hexstring_n2a(RTA_DATA(tb[TCA_ACT_COOKIE]),
>> -					      strsz, b1, sizeof(b1)));
>> -		}
>>  		fprintf(f, "\n");
>>  	}
>> +	if (tb[TCA_ACT_COOKIE]) {
>> +		int strsz = RTA_PAYLOAD(tb[TCA_ACT_COOKIE]);
>> +		char b1[strsz * 2 + 1];
>> +
>> +		fprintf(f, "\tcookie len %d %s\n", strsz,
>> +			hexstring_n2a(RTA_DATA(tb[TCA_ACT_COOKIE]),
>> +				      strsz, b1, sizeof(b1)));
>> +	}
>>  
>>  	return 0;
>>  }
>
>Yes, it should not be under stats flag.
>The general model is that -s is for statistics only; and -d is for read only detail values.
>So this makes sense.
>
>The problem is that the format of the action cookie needs to be same on command line
>argument and on display; i.e drop the length part of the display .

I agree. But that should be a separate patch.