From: Yang Hongyang <yanghy@cn.fujitsu.com>
To: David Miller <davem@davemloft.net>
Cc: shemminger@vyatta.com, chas@cmf.nrl.navy.mil, netdev@vger.kernel.org
Subject: Re: [PATCH] atm: lec use dev_change_mtu
Date: Fri, 20 Mar 2009 15:59:49 +0800 [thread overview]
Message-ID: <49C34CF5.5090908@cn.fujitsu.com> (raw)
In-Reply-To: <20090320.004841.194259369.davem@davemloft.net>
David Miller wrote:
> From: Yang Hongyang <yanghy@cn.fujitsu.com>
> Date: Fri, 20 Mar 2009 15:45:20 +0800
>
>> Stephen Hemminger wrote:
>>> Rather than calling device pointer directly (which is incorrect with
>>> net_device_ops), use the standard dev_change_mtu. Compile tested only.
>>>
>>> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
>>>
>>> --- a/net/atm/lec.c 2009-03-19 17:18:35.140652628 -0700
>>> +++ b/net/atm/lec.c 2009-03-19 17:19:19.500777355 -0700
>>> @@ -502,7 +502,7 @@ static int lec_atm_send(struct atm_vcc *
>>> priv->lane2_ops = NULL;
>>> if (priv->lane_version > 1)
>>> priv->lane2_ops = &lane2_ops;
>>> - if (dev->change_mtu(dev, mesg->content.config.mtu))
>>> + if (dev_set_mtu(dev, mesg->content.config.mtu))
>> I think it's not correct.This dev->change_mtu is:
>> 663 static int lec_change_mtu(struct net_device *dev, int new_mtu)
>> 664 {
>> 665 if ((new_mtu < 68) || (new_mtu > 18190))
>> 666 return -EINVAL;
>> 667 dev->mtu = new_mtu;
>> ^^^^^^^^^^^^^^^^maybe should use dev_set_mtu() here.
>> 668 return 0;
>> 669 }
>>
>> and it's not quite same as dev_set_mtu.
>
> dev_set_mtu() calls netdev->ops->ndo_set_mtu() so it will call
> this function you are quoting.
got it.:)
>
>
--
Regards
Yang Hongyang
next prev parent reply other threads:[~2009-03-20 8:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-20 0:24 [PATCH] atm: lec use dev_change_mtu Stephen Hemminger
2009-03-20 7:26 ` Yang Hongyang
2009-03-20 7:45 ` Yang Hongyang
2009-03-20 7:48 ` David Miller
2009-03-20 7:59 ` Yang Hongyang [this message]
2009-03-21 20:37 ` David Miller
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