netdev - Re: [PATCH v4 for-next 04/12] IB/ipoib: Return IPoIB devices matching connection parameters

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Date:	Tue, 19 May 2015 12:28:10 -0600
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Haggai Eran <haggaie@...lanox.com>
Cc:	Doug Ledford <dledford@...hat.com>, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, Liran Liss <liranl@...lanox.com>,
	Guy Shapiro <guysh@...lanox.com>,
	Shachar Raindel <raindel@...lanox.com>,
	Yotam Kenneth <yotamke@...lanox.com>
Subject: Re: [PATCH v4 for-next 04/12] IB/ipoib: Return IPoIB devices
 matching connection parameters

On Sun, May 17, 2015 at 08:51:00AM +0300, Haggai Eran wrote:

> +#if IS_ENABLED(CONFIG_IPV6)
> +	struct sockaddr_in6 *addr_in6 = (struct sockaddr_in6 *)addr;
> +#endif
> +	__be32 ret_addr;
> +
> +	switch (addr->sa_family) {
> +	case AF_INET:
> +		in_dev = in_dev_get(dev);
> +		if (!in_dev)
> +			return false;
> +
> +		ret_addr = inet_confirm_addr(net, in_dev, 0,
> +					     addr_in->sin_addr.s_addr,
> +					     RT_SCOPE_HOST);
> +		in_dev_put(in_dev);
> +		if (ret_addr)
> +			return true;
> +
> +		break;
> +#if IS_ENABLED(CONFIG_IPV6)
> +	case AF_INET6:
> +		if (ipv6_chk_addr(net, &addr_in6->sin6_addr, dev, 1))
> +			return true;
> +
> +		break;
> +#endif

Can you use

  if (IS_ENABLED(CONFIG_IPV6))

At the call site instead of the #if guards?

Jason
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