[patch] net: ipv6 build fix

From: Ingo Molnar
Date: Wed Apr 30 2008 - 16:39:20 EST



hi David,

* David Miller <davem@xxxxxxxxxxxxx> wrote:

> net: Several cleanups for the setsockopt compat support.
> net: Add compat support for getsockopt (MCAST_MSFILTER)

this broke !COMPAT builds in current -git. Fix below. NOTE: fix is just
a quick guess.

Ingo

----------------------->
Subject: net: ipv6 build fix
From: Ingo Molnar <mingo@xxxxxxx>
Date: Wed Apr 30 22:32:09 CEST 2008

x86.git testing found the following build error on -git:

ERROR: "compat_mc_getsockopt" [net/ipv6/ipv6.ko] undefined!

with this config:

http://redhat.com/~mingo/misc/config-Wed_Apr_30_22_23_37_CEST_2008.bad

this hits on !COMPAT + IPV6 modular builds. It is caused by commit
42908c69f6 ("net: Add compat support for getsockopt (MCAST_MSFILTER)").

this fix here is just a quick guess - i _suspect_ that
do_ipv6_getsockopt() will just DTRT and return -EINVAL but i
havent checked. It obviously solves the build issue.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
net/ipv6/ipv6_sockglue.c | 2 ++
1 file changed, 2 insertions(+)

Index: linux/net/ipv6/ipv6_sockglue.c
===================================================================
--- linux.orig/net/ipv6/ipv6_sockglue.c
+++ linux/net/ipv6/ipv6_sockglue.c
@@ -1089,9 +1089,11 @@ int ipv6_getsockopt(struct sock *sk, int
if(level != SOL_IPV6)
return -ENOPROTOOPT;

+#ifdef CONFIG_COMPAT
if (optname == MCAST_MSFILTER)
return compat_mc_getsockopt(sk, level, optname, optval, optlen,
ipv6_getsockopt);
+#endif

err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
--
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