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b7ef213ef6
__ipv6_addr_needs_scope_id checks if an ipv6 address needs to supply a 'sin6_scope_id != 0'. 'sin6_scope_id != 0' was enforced in case of link-local addresses. To support interface-local multicast these checks had to be enhanced and are now consolidated into these new helper functions. v2: a) migrated to struct ipv6_addr_props v3: a) reverted changes for ipv6_addr_props b) test for address type instead of comparing scope v4: a) unchanged Suggested-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>