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Eric W. Biederman 5ee4433efe netns: Fail conspicously if someone uses net_generic at an inappropriate time.

By definition net_generic should never be called when it can return
NULL.  Fail conspicously with a BUG_ON to make it clear when people mess
up that a NULL return should never happen.

Recently there was a bug in the CAIF subsystem where it was registered
with register_pernet_device instead of register_pernet_subsys.  It was
erroneously concluded that net_generic could validly return NULL and
that net_assign_generic was buggy (when it was just inefficient).
Hopefully this BUG_ON will prevent people to coming to similar erroneous
conclusions in the futrue.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Tested-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2012-01-27 21:06:02 -05:00

conntrack.h

netfilter: nf_conntrack: make event callback registration per-netns

2011-11-22 00:34:47 +01:00

core.h

percpu: add __percpu sparse annotations to net

2010-02-16 23:05:38 -08:00

dccp.h

[NETNS][DCCPV6]: Move the dccp_v6_ctl_sk on the struct net.

2008-04-13 22:32:25 -07:00

generic.h

netns: Fail conspicously if someone uses net_generic at an inappropriate time.