From: Tom Herbert <tom@herbertland.com>
Date: Fri, 31 Jul 2015 23:52:12 +0000 (-0700)
Subject: ipv6: Implement different admin modes for automatic flow labels
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~243^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=42240901f7c438636715b9cb6ed93f4441ffc091;p=pandora-kernel.git

ipv6: Implement different admin modes for automatic flow labels

Change the meaning of net.ipv6.auto_flowlabels to provide a mode for
automatic flow labels generation. There are four modes:

0: flow labels are disabled
1: flow labels are enabled, sockets can opt-out
2: flow labels are allowed, sockets can opt-in
3: flow labels are enabled and enforced, no opt-out for sockets

np->autoflowlabel is initialized according to the sysctl value.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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