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authorMatteo Croce <mcroce@redhat.com>2017-09-12 17:46:37 +0200
committerDavid S. Miller <davem@davemloft.net>2017-09-19 16:44:02 -0700
commit35e015e1f5773417952fe91ce8790baf9b4237a2 (patch)
treedd2db12ce379d4f5cda0ae691f70a8f4d26723f8 /sound
parent6819a14ecbe2e089e5c5bb74edecafdde2028a00 (diff)
downloadlinux-35e015e1f5773417952fe91ce8790baf9b4237a2.tar.bz2
ipv6: fix net.ipv6.conf.all interface DAD handlers
Currently, writing into net.ipv6.conf.all.{accept_dad,use_optimistic,optimistic_dad} has no effect. Fix handling of these flags by: - using the maximum of global and per-interface values for the accept_dad flag. That is, if at least one of the two values is non-zero, enable DAD on the interface. If at least one value is set to 2, enable DAD and disable IPv6 operation on the interface if MAC-based link-local address was found - using the logical OR of global and per-interface values for the optimistic_dad flag. If at least one of them is set to one, optimistic duplicate address detection (RFC 4429) is enabled on the interface - using the logical OR of global and per-interface values for the use_optimistic flag. If at least one of them is set to one, optimistic addresses won't be marked as deprecated during source address selection on the interface. While at it, as we're modifying the prototype for ipv6_use_optimistic_addr(), drop inline, and let the compiler decide. Fixes: 7fd2561e4ebd ("net: ipv6: Add a sysctl to make optimistic addresses useful candidates") Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound')
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