netdev - Re: [PATCH v5 1/2] geneve: implement support for IPv6-based tunnels

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Date:	Fri, 23 Oct 2015 13:48:49 +0900
From:	YOSHIFUJI Hideaki <hideaki.yoshifuji@...aclelinux.com>
To:	"John W. Linville" <linville@...driver.com>, netdev@...r.kernel.org
Cc:	hideaki.yoshifuji@...aclelinux.com,
	Dave Miller <davem@...emloft.net>,
	Pravin B Shelar <pshelar@...ira.com>,
	Jesse Gross <jesse@...ira.com>, Jiri Benc <jbenc@...hat.com>
Subject: Re: [PATCH v5 1/2] geneve: implement support for IPv6-based tunnels

Hi,

John W. Linville wrote:
> NOTE: Link-local IPv6 addresses for remote endpoints are not supported,
> since the driver currently has no capacity for binding a geneve
> interface to a specific link.
> 
> Signed-off-by: John W. Linville <linville@...driver.com>
> ---
> v5:
> - wrap declaration of sock6 in geneve_dev with IS_ENABLED(CONFIG_IPV6)
> - remove superfluous '!!' when assigning geneve->collect_md to bool
> - use skb_scrub_packet in IPv4 tx path as well 
> - check for NULL ip_tunnel_info pointer in geneve[6]_xmit_skb
> - use ipv6_addr_equal for comparing IPv6 addresses
> - more use of IS_ENABLED(CONFIG_IPV6) for preserving build integrity
> - reject link-local ipv6 address for remote tunnel endpoint
:

> @@ -870,15 +1147,35 @@ static int geneve_newlink(struct net *net, struct net_device *dev,
:
> +
> +		if (ipv6_addr_type(&remote.sin6.sin6_addr) &
> +		    IPV6_ADDR_LINKLOCAL)
> +			netdev_dbg(dev, "link-local remote is unsupported\n");
> +			return -EINVAL;
> +	}
> +

This always returns -EINVAL; {} is missing.

-- 
Hideaki Yoshifuji <hideaki.yoshifuji@...aclelinux.com>
Technical Division, MIRACLE LINUX CORPORATION
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