We've been warning about SO_BSDCOMPAT usage for many years. We may remove
this code completely now.
Suggested-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NMiaohe Lin <linmiaohe@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>