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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 13 Jan 2015 11:25:45 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	netdev <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Kyeyoon Park <kyeyoonp@...eaurora.org>,
	"bridge@...ts.linux-foundation.org" 
	<bridge@...ts.linux-foundation.org>,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: [PATCH] bridge: only provide proxy ARP when CONFIG_INET is enabled

On Tue, Jan 13, 2015 at 6:10 AM, Arnd Bergmann <arnd@...db.de> wrote:
> 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.
>

Not sure how much sense to make CONFIG_BRIDGE depend
on CONFIG_INET, at least CONFIG_BONDING does.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html