linux-kernel - Re: [PATCH] rds: fix building with IPV6=m

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Message-Id: <xr93mutosqth.fsf@gthelen.svl.corp.google.com>
Date:   Tue, 14 Aug 2018 12:15:06 -0700
From:   Greg Thelen <gthelen@...gle.com>
To:     Arnd Bergmann <arnd@...db.de>,
        Santosh Shilimkar <santosh.shilimkar@...cle.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Anders Roxell <anders.roxell@...aro.org>,
        Ka-Cheong Poon <ka-cheong.poon@...cle.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        rds-devel@....oracle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rds: fix building with IPV6=m

Arnd Bergmann <arnd@...db.de> wrote:

> When CONFIG_RDS_TCP is built-in and CONFIG_IPV6 is a loadable
> module, we get a link error agains the modular ipv6_chk_addr()
> function:
>
> net/rds/tcp.o: In function `rds_tcp_laddr_check':
> tcp.c:(.text+0x3b2): undefined reference to `ipv6_chk_addr'
>
> This adds back a dependency that forces RDS_TCP to also be
> a loadable module when IPV6 is one.
>
> Fixes: e65d4d96334e ("rds: Remove IPv6 dependency")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Greg Thelen <gthelenq@...gle.com>