netdev - Re: [Patch net] udp: remove a useless initialization

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Date:	Tue, 7 May 2013 21:17:02 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Cong Wang <amwang@...hat.com>
Cc:	netdev@...r.kernel.org, Eric Dumazet <eric.dumazet@...il.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [Patch net] udp: remove a useless initialization

On Tue, May 7, 2013 at 8:04 PM, Cong Wang <amwang@...hat.com> wrote:
> 'inner_eth' is not used until it is assigned with the same
> value later.
>
since you are at this code, can you also pull inner ether header?

Thanks,
Pravin.
> Cc: Eric Dumazet <eric.dumazet@...il.com>
> Cc: Pravin B Shelar <pshelar@...ira.com>
> Cc: David S. Miller <davem@...emloft.net>
> Signed-off-by: Cong Wang <amwang@...hat.com>
>
> ---
> diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
> index 0ae038a..3d036bdd 100644
> --- a/net/ipv4/udp.c
> +++ b/net/ipv4/udp.c
> @@ -2311,7 +2311,7 @@ static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
>         struct sk_buff *segs = ERR_PTR(-EINVAL);
>         int mac_len = skb->mac_len;
>         int tnl_hlen = skb_inner_mac_header(skb) - skb_transport_header(skb);
> -       struct ethhdr *inner_eth = (struct ethhdr *)skb_inner_mac_header(skb);
> +       struct ethhdr *inner_eth;
>         __be16 protocol = skb->protocol;
>         netdev_features_t enc_features;
>         int outer_hlen;
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