netdev - Re: [PATCH iproute2] fq: don't allow set options to zero

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Message-ID: <1399874336.7973.17.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Sun, 11 May 2014 22:58:56 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Yang Yingliang <yangyingliang@...wei.com>
Cc:	stephen@...workplumber.org, netdev@...r.kernel.org
Subject: Re: [PATCH iproute2] fq: don't allow set options to zero

On Mon, 2014-05-12 at 12:18 +0800, Yang Yingliang wrote:
> Now options of fair queue can be zero but cannot be (~0U).
> Zero is useless, so don't allow set the options to zero.
> Also, maxrate cannot be reset to unlimited because it
> cannot be (~0U).
> 
> Cc: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> ---
>  tc/q_fq.c | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)

No, you are changing behavior for existing scripts.

If you really want to fix these cases, you need to do it properly.



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