netdev - Re: [PATCH v2] net: sh_eth: fix skb_over

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Date:	Tue, 07 Feb 2012 13:38:06 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	yoshihiro.shimoda.uh@...esas.com
Cc:	netdev@...r.kernel.org, eric.dumazet@...il.com,
	nobuhiro.iwamatsu.yj@...esas.com
Subject: Re: [PATCH v2] net: sh_eth: fix skb_over_panic happen

From: "Shimoda, Yoshihiro" <yoshihiro.shimoda.uh@...esas.com>
Date: Tue, 07 Feb 2012 18:55:15 +0900

> When this GETHER controller received a large frame (about 1800 bytes
> or more), skb_over_panic() happened. This is because the previous
> driver set the RFLR to 0x1000 (4096 bytes) and the skb allocate size
> is smaller than 4096 bytes. So, the controller accepted such a frame.
> 
> The controller can discard a large frame by the RFLR setting.
> So, the patch modifies the value of RFLR to mtu + ETH_HLEN +
> VLAN_HLEN + ETH_FCS_LEN.
> 
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
> Cc: Eric Dumazet <eric.dumazet@...il.com>

Applied, thanks.
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