mptcp: make sure flag signal is set when add addr with port
When add address with port, it is mean to create a listening socket, and send an ADD_ADDR to remote, so it must have flag signal set, add this check in mptcp_pm_parse_addr(). Fixes: a77e9179 ("mptcp: deal with MPTCP_PM_ADDR_ATTR_PORT in PM netlink") Acked-by: Geliang Tang <geliangtang@gmail.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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