netdev - Re: [Patch net-next v2] ping: always initialize ->sin6_scope_id and ->sin6

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Message-ID: <CAKD1Yr1f=LtJGnzOEoy2Co2A_2LzqjSdU6dJZWCy3+WeXWJe3g@mail.gmail.com>
Date:	Mon, 3 Jun 2013 18:25:39 +0900
From:	Lorenzo Colitti <lorenzo@...gle.com>
To:	Cong Wang <amwang@...hat.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [Patch net-next v2] ping: always initialize ->sin6_scope_id and ->sin6_flowinfo

On Mon, Jun 3, 2013 at 5:43 PM, Cong Wang <amwang@...hat.com> wrote:
> From: Cong Wang <amwang@...hat.com>
>
> If we don't need scope id, we should initialize it to zero.
> Same for ->sin6_flowinfo.
>
> Cc: Lorenzo Colitti <lorenzo@...gle.com>
> Cc: David S. Miller <davem@...emloft.net>
> Signed-off-by: Cong Wang <amwang@...hat.com>
> ---
>  net/ipv4/ping.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
> index 71f6ad0..0f419a2 100644
> --- a/net/ipv4/ping.c
> +++ b/net/ipv4/ping.c
> @@ -892,12 +892,12 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
>                 sin6->sin6_port = 0;
>                 sin6->sin6_addr = ip6->saddr;
>
> +               sin6->sin6_flowinfo = 0;
>                 if (np->sndflow)
>                         sin6->sin6_flowinfo = ip6_flowinfo(ip6);
>
> -               if (__ipv6_addr_needs_scope_id(
> -                   ipv6_addr_type(&sin6->sin6_addr)))
> -                       sin6->sin6_scope_id = IP6CB(skb)->iif;
> +               sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
> +                                                         IP6CB(skb)->iif);
>
>                 if (inet6_sk(sk)->rxopt.all)
>                         pingv6_ops.ip6_datagram_recv_ctl(sk, msg, skb);

Acked-by: Lorenzo Colitti <lorenzo@...gle.com>
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