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ipv6: simplify detection of first operational link-local address on interface

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In commit 1ec047eb47 ("ipv6: introduce per-interface counter for
dad-completed ipv6 addresses") I build the detection of the first
operational link-local address much to complex. Additionally this code
now has a race condition.

Replace it with a much simpler variant, which just scans the address
list when duplicate address detection completes, to check if this is
the first valid link local address and send RS and MLD reports then.

Fixes: 1ec047eb47 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses")
Reported-by: Jiri Pirko <jiri@resnulli.us>
Cc: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Flavio Leitner <fbl@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hannes Frederic Sowa
2014-01-16 20:13:04 +01:00
committed by David S. Miller
parent 77f99ad16a
commit 11ffff752c
2 changed files with 17 additions and 22 deletions
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include/net/if_inet6.h
-1
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@@ -165,7 +165,6 @@ struct inet6_dev {
struct net_device *dev;
struct list_head addr_list;
int valid_ll_addr_cnt;
struct ifmcaddr6 *mc_list;
struct ifmcaddr6 *mc_tomb;