netdev - Re: [PATCH] bridge: only provide proxy ARP when CONFIG

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Message-Id: <20150114.150822.992076699268375825.davem@davemloft.net>
Date:	Wed, 14 Jan 2015 15:08:22 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	arnd@...db.de
Cc:	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

From: Arnd Bergmann <arnd@...db.de>
Date: Tue, 13 Jan 2015 15:10:27 +0100

> When IPV4 support is disabled, we cannot call arp_send from
> the bridge code, which would result in a kernel link error:
> 
> net/built-in.o: In function `br_handle_frame_finish':
> :(.text+0x59914): undefined reference to `arp_send'
> :(.text+0x59a50): undefined reference to `arp_tbl'
> 
> This makes the newly added proxy ARP support in the bridge
> code depend on the CONFIG_INET symbol and lets the compiler
> optimize the code out to avoid the link error.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 958501163ddd ("bridge: Add support for IEEE 802.11 Proxy ARP")

Applied, thanks Arnd.
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