ipv6: change ipv6_stub_impl.ipv6_dst_lookup to take net argument
This patch adds net argument to ipv6_stub_impl.ipv6_dst_lookup for use cases where sk is not available (like mpls). sk appears to be needed to get the namespace 'net' and is optional otherwise. This patch series changes ipv6_stub_impl.ipv6_dst_lookup to take net argument. sk remains optional. All callers of ipv6_stub_impl.ipv6_dst_lookup have been modified to pass net. I have modified them to use already available 'net' in the scope of the call. I can change them to sock_net(sk) to avoid any unintended change in behaviour if sock namespace is different. They dont seem to be from code inspection. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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