netdev - Re: [Patch net-next v8 02/11] ipv6: make ip6_dst

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Message-Id: <20130517.141327.2084320693913331713.davem@davemloft.net>
Date:	Fri, 17 May 2013 14:13:27 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	amwang@...hat.com
Cc:	netdev@...r.kernel.org
Subject: Re: [Patch net-next v8 02/11] ipv6: make ip6_dst_hoplimit() static
 inline

From: Cong Wang <amwang@...hat.com>
Date: Fri, 17 May 2013 08:21:30 +0800

> @@ -201,4 +200,24 @@ static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt, struct in6_addr
>  	return dest;
>  }
>  
> +#if IS_ENABLED(CONFIG_IPV6)
> +static inline int ip6_dst_hoplimit(struct dst_entry *dst)
> +{
> +	int hoplimit = dst_metric_raw(dst, RTAX_HOPLIMIT);
> +	if (hoplimit == 0) {
> +		struct net_device *dev = dst->dev;
> +		struct inet6_dev *idev;
> +
> +		rcu_read_lock();
> +		idev = __in6_dev_get(dev);
> +		if (idev)
> +			hoplimit = idev->cnf.hop_limit;
> +		else
> +			hoplimit = dev_net(dev)->ipv6.devconf_all->hop_limit;
> +		rcu_read_unlock();
> +	}
> +	return hoplimit;
> +}
> +#endif

Create a dummy stub version in an #else branch here, so that you have
to ifdef less in vxlan.c

In fact I think you can avoid nearly every ifdef in vxlan.c if you apply
this technique throughout your changes.

Please do that and resubmit this series.

Thanks.
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