linux-kernel - Re: IRe: [PATCH] vsprintf: flowinfo in IPv6 is optional too

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Message-ID: <CAHmME9qHgQN2aDNi+R5HqmP0ehtAL8wdEJQvy78m3raaWruMRQ@mail.gmail.com>
Date:	Wed, 3 Feb 2016 22:09:58 +0100
From:	"Jason A. Donenfeld" <Jason@...c4.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux@...musvillemoes.dk, andriy.shevchenko@...ux.intel.com,
	LKML <linux-kernel@...r.kernel.org>, dborkman@...hat.com
Subject: Re: IRe: [PATCH] vsprintf: flowinfo in IPv6 is optional too

On Wed, Feb 3, 2016 at 6:56 PM, Joe Perches <joe@...ches.com> wrote:
> Why does this matter at all?

Because I want to printk a sockaddr_in6, and have the most complete
yet valid and standard representation I can. Displaying a /0 when
there is no flow is confusing, ugly, and unhelpful, not to mention it
doesn't accurately reflect what's happening. A flowlabel of zero means
no flowlabel.