netdev - Re: [PATCH 1/6] vxlan: minor output refactoring

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Date:	Tue, 09 Oct 2012 11:27:55 -0700
From:	Joe Perches <joe@...ches.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 1/6] vxlan: minor output refactoring

On Tue, 2012-10-09 at 10:56 -0700, Stephen Hemminger wrote:
> +static __be32 vxlan_find_dst(struct vxlan_dev *vxlan, struct sk_buff *skb)
> +{
> +       const struct ethhdr *eth = (struct ethhdr *) skb->data;
> +       struct vxlan_fdb *f;
> +
> +       if (is_multicast_ether_addr(eth->h_dest) ||
> +           (f = vxlan_find_mac(vxlan, eth->h_dest)) == NULL)
> +               return vxlan->gaddr;
> +       else
> +               return f->remote_ip;
> +}

Bikeshedding:

This might be simpler to read with a few more lines like:

static __be32 vxlan_find_dst(struct vxlan_dev *vxlan, struct sk_buff *skb)
{
	const struct ethhdr *eth = (const struct ethhdr *)skb->data;
	struct vxlan_fdb *f;

	if (is_multicast_ether_addr(eth->h_dest))
		return vxlan->gaddr;

	f = vxlan_find_mac(vxlan, eth->h_dest);
	if (!f)
		return vxlan->gaddr;

	return f->remote_ip;
}

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