netdev - Re: [PATCHv2 net-next 2/3] sunvnet: allow admin to set sunvnet MTU

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Date:	Sat, 13 Sep 2014 23:21:53 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	David L Stevens <david.stevens@...cle.com>,
	David Miller <davem@...emloft.net>
CC:	netdev@...r.kernel.org
Subject: Re: [PATCHv2 net-next 2/3] sunvnet: allow admin to set sunvnet MTU

On 9/13/2014 2:18 AM, David L Stevens wrote:

> This patch allows an admin to set the MTU on a sunvnet device to arbitrary
> values between the minimum (68) and maximum (65535) IPv4 packet sizes.

> Signed-off-by: David L Stevens <david.stevens@...cle.com>
> ---
>   drivers/net/ethernet/sun/sunvnet.c |    6 +++++-
>   drivers/net/ethernet/sun/sunvnet.h |    2 +-
>   2 files changed, 6 insertions(+), 2 deletions(-)

> diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
> index a6418bb..b557ec4 100644
> --- a/drivers/net/ethernet/sun/sunvnet.c
> +++ b/drivers/net/ethernet/sun/sunvnet.c
> @@ -751,6 +751,10 @@ static int vnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
>   	if (unlikely(!port))
>   		goto out_dropped;
>
> +	if (skb->len > port->vio.rmtu) {
> +		goto out_dropped;
> +	}

    {} not needed.

[...]

WBR, Sergei

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