netdev - Re: [PATCH net-next 2/2] ipv4: processing ancillary IP_TOS or IP

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Date:	Thu, 15 Aug 2013 21:35:05 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Francesco Fusco <ffusco@...hat.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 2/2] ipv4: processing ancillary IP_TOS or IP_TTL

On Wed, 2013-08-14 at 17:48 +0200, Francesco Fusco wrote:

> @@ -1511,6 +1517,11 @@ void ip_send_unicast_reply(struct net *net, struct sk_buff *skb, __be32 daddr,
>  	inet = &get_cpu_var(unicast_sock);
>  
>  	inet->tos = arg->tos;
> +
> +	ipc.tos = ip_hdr(skb)->tos;

Why both inet->tos and ipc.tos must be set ?

This is very confusing, as if you were not 100% sure of your patch.


> +	ipc.ttl = inet->uc_ttl;

	ipc.ttl = -1;

> +	ipc.priority = skb->priority;
> +
>  	sk = &inet->sk;
>  	sk->sk_priority = skb->priority;

Why both sk->sk_priority and ipc.priority must be set ?

>  	sk->sk_protocol = ip_hdr(skb)->protocol;



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