net: ipv6: Do not keep linklocal and loopback addresses
authorDavid Ahern <dsa@cumulusnetworks.com>
Fri, 8 Apr 2016 19:01:21 +0000 (12:01 -0700)
committerDavid S. Miller <davem@davemloft.net>
Thu, 14 Apr 2016 02:58:37 +0000 (22:58 -0400)
commit70af921db6f8835f4b11c65731116560adb00c14
tree396dc640e04cfaa80b07e9e701570dffb79bc2d9
parenta6d37131c02f15463daa00e2f1da6824e8e00de2
net: ipv6: Do not keep linklocal and loopback addresses

f1705ec197e7 added the option to retain user configured addresses on an
admin down. A comment to one of the later revisions suggested using the
IFA_F_PERMANENT flag rather than adding a user_managed boolean to the
ifaddr struct. A side effect of this change is that link local and
loopback addresses are also retained which is not part of the objective
of f1705ec197e7. Add check to drop those addresses.

Fixes: f1705ec197e7 ("net: ipv6: Make address flushing on ifdown optional")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/addrconf.c