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Date:   Wed, 13 Jun 2018 11:06:17 +0200
From:   Daniel Borkmann <>
To:     Toshiaki Makita <>,
        Jeff Kirsher <>
Cc:     John Fastabend <>,,
Subject: Re: [PATCH net-queue] i40e: Fix incorrect skb reserved size on rx

On 06/13/2018 10:08 AM, Toshiaki Makita wrote:
> i40e_build_skb() reserves I40E_SKB_PAD + (xdp->data -
> xdp->data_hard_start) but obviously I40E_SKB_PAD is unnecessary here
> and mac_header/data feilds in skb becomes incorrect, and breaks normal
> skb receive path as well as XDP receive path.
> Fixes: cc5b114dcf98 ("bpf, i40e: add meta data support")
> Signed-off-by: Toshiaki Makita <>

Thanks Toshiaki, I sent a complete fix yesterday here:


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