commit 015a33bd05b7fd69f400d4e0e4a9925af9292548
author Gonglei <arei.gonglei@huawei.com> Tue Jul 01 20:58:08 2014 +0800
committer Peter Maydell <peter.maydell@linaro.org> Tue Jul 01 17:42:23 2014 +0100
tree a1ac8883dc8ccff13eb6e129880f0aab7e2d87a6
parent 596742db3341390dfd386ec434165e0118cfc0f8

net: add mmsghdr struct check for L2TPV3

The mmsghdr struct is only introduced in Linux 2.6.32; add a
configure check for it and disable L2TPV3 on hosts which are
too old to provide it, rather than simply failing to compile.

Reported-by: chenliang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1404219488-11196-1-git-send-email-arei.gonglei@huawei.com
[PMM: cleaned up commit message and corrected kernel version number]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

net/net.c

diff --git a/net/net.c b/net/net.c
index 0869c60..6d930ea 100644
--- a/net/net.c
+++ b/net/net.c
@@ -806,7 +806,7 @@
 #ifdef CONFIG_VHOST_NET_USED
         [NET_CLIENT_OPTIONS_KIND_VHOST_USER] = net_init_vhost_user,
 #endif
-#ifdef CONFIG_LINUX
+#ifdef CONFIG_L2TPV3
         [NET_CLIENT_OPTIONS_KIND_L2TPV3]    = net_init_l2tpv3,
 #endif
 };
@@ -845,7 +845,7 @@
 #ifdef CONFIG_VHOST_NET_USED
         case NET_CLIENT_OPTIONS_KIND_VHOST_USER:
 #endif
-#ifdef CONFIG_LINUX
+#ifdef CONFIG_L2TPV3
         case NET_CLIENT_OPTIONS_KIND_L2TPV3:
 #endif
             break;