From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [net-next 03/12] net/mlx5e: Ethtool steering, ip6 support
Date: Fri, 10 Aug 2018 19:25:18 -0700 (PDT)
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From: Saeed Mahameed <saeedm@mellanox.com>
Date: Fri, 10 Aug 2018 15:26:21 -0700

> +static bool is_zero_ip6(__be32 ip6[4])
> +{
> +	int i;
> +
> +	for (i = 0; i < 4; i++)
> +		if (ip6[i] != 0)
> +			return false;
> +	return true;
> +}

This is ipv6_addr_any().