ipv6: resend MLD report if a link-local address completes DAD
RFC3590/RFC3810 specifies we should resend MLD reports as soon as a valid link-local address is available. We now use the valid_ll_addr_cnt to check if it is necessary to resend a new report. Changes since Flavio Leitner's version: a) adapt for valid_ll_addr_cnt b) resend first reports directly in the path and just arm the timer for mc_qrv-1 resends. Reported-by: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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