tree ed2560fa53126f36c0b1a8a6f9a5f31232c3f94c
parent ba2c05279195e543a3b5875a14de1f952ad8b5f8
author Fu Siyuan <siyuan.fu@intel.com> 1430286423 +0000
committer sfu5 <sfu5@Edk2> 1430286423 +0000

Remove duplicate DAD entry in IP6 driver to fix DAD fail issue.

The IP6 driver may create duplicate IP6_DAD_ENTRY in DupAddrDetectList in some situation like:
1. Address policy switch but not clear the delay node list, OR
2. Set manual address repeatedly before the previous DAD is finished.
The NS sent out by duplicate DAD entry will mix up with the loop back multicast packet, result in DAD fail.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17263 6f19259b-4bc3-4df7-8a09-765794883524