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Date:	Tue, 13 Jan 2015 22:33:48 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	David Ahern <dsahern@...il.com>
Cc:	David Miller <davem@...emloft.net>, cwang@...pensource.com,
	netdev@...r.kernel.org, kyeyoonp@...eaurora.org,
	bridge@...ts.linux-foundation.org, stephen@...workplumber.org
Subject: Re: [PATCH] bridge: only provide proxy ARP when CONFIG_INET is enabled

On Tuesday 13 January 2015 14:14:20 David Ahern wrote:
> 
> Rather than connect CONFIG_BRIDGE to CONFIG_INET, why not make 
> br_do_proxy_arp (and setting BR_PROXYARP flag) a no-op if CONFIG_INET is 
> not set?
> 
> #ifdef CONFIG_INET
> #else
> static inline void br_do_proxy_arp(...args...)
> {
> }
> #endif
> 
> That covers both arp_tbl and arp_send.

The effect is very similar to my patch (probably same object code), the
only difference should be that it would add an ugly #ifdef instead of
the preferred IS_ENABLED() check, so you don't get any compile-time
coverage of the function. It's not really important because everybody
has CONFIG_INET enabled in practice and it does get more than enough
compile-time coverage.

	Arnd
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