In mac80211-next a call to get_net_ns_by_fd() has been added in cfg80211
which resides in networking core. This function has been backported
such that it will always fail, ie. as it would when CONFIG_NET_NS
is not defined. The call was added by:
commit 4b681c82d2f9bef121c912ffcaac89a004af3f2c
Author: Vadim Kochan <vadim4j@xxxxxxxxx>
Date: Mon Jan 12 16:34:05 2015 +0200
nl80211: Allow set network namespace by fd
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
This patch replaces the V2 commit which has
Message-ID: <1422651176-5433-1-git-send-email-arend@xxxxxxxxxxxx>
Changes:
V2
- solve backport using LINUX_BACKPORT macro (Johannes Berg)
V3
- make backport conditional for kernel before 3.20 (Hauke Mehrtens)
---
backport/backport-include/net/net_namespace.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/backport/backport-include/net/net_namespace.h b/backport/backport-include/net/net_namespace.h
index e83b103..0ba7359 100644
--- a/backport/backport-include/net/net_namespace.h
+++ b/backport/backport-include/net/net_namespace.h
@@ -24,4 +24,15 @@ net_ieee802154_lowpan(struct net *net)
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0) */
#endif /* CPTCFG_IEEE802154_6LOWPAN */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,20,0)
+/*
+ * In older kernels we simply fail this function.
+ */
+#define get_net_ns_by_fd LINUX_BACKPORT(get_net_ns_by_fd)
+static inline struct net *get_net_ns_by_fd(int fd)
+{
+ return ERR_PTR(-EINVAL);
+}
+#endif
+
#endif /* _COMPAT_NET_NET_NAMESPACE_H */
--
1.9.1
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