From: Eric Dumazet <edumazet@google.com>
Date: Tue, 22 Nov 2016 19:17:30 +0000 (-0800)
Subject: flow_dissect: call init_default_flow_dissectors() earlier
X-Git-Tag: v4.14-rc1~2032^2~25
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c9b8af1330198ae241cd545e1f040019010d44d9;p=platform%2Fkernel%2Flinux-rpi.git

flow_dissect: call init_default_flow_dissectors() earlier

Andre Noll reported panics after my recent fix (commit 34fad54c2537
"net: __skb_flow_dissect() must cap its return value")

After some more headaches, Alexander root caused the problem to
init_default_flow_dissectors() being called too late, in case
a network driver like IGB is not a module and receives DHCP message
very early.

Fix is to call init_default_flow_dissectors() much earlier,
as it is a core infrastructure and does not depend on another
kernel service.

Fixes: 06635a35d13d4 ("flow_dissect: use programable dissector in skb_flow_dissect and friends")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andre Noll <maan@tuebingen.mpg.de>
Diagnosed-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 69e4463..c6d8207 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -1013,4 +1013,4 @@ static int __init init_default_flow_dissectors(void)
 	return 0;
 }
 
-late_initcall_sync(init_default_flow_dissectors);
+core_initcall(init_default_flow_dissectors);