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由 Paolo Abeni 提交于
__ip_options_echo() does not need anymore skb->dst, so we can avoid explicitly preserving it for its own sake. This is almost a revert of commit 0ddf3fb2 ("udp: preserve skb->dst if required for IP options processing") plus some lifting to fit later changes. Signed-off-by: NPaolo Abeni <pabeni@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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