[PATCH net-next 04/11] mptcp: add rm_list_rx in mptcp_pm_data

[Mat Martineau]

From: Geliang Tang <geliangt...@gmail.com>

This patch added a new member rm_list_rx for struct mptcp_pm_data as an
list of the removing address ids on the incoming direction. Initialized
its nr field to zero in mptcp_pm_data_init.

In mptcp_pm_rm_addr_received, set it as the input rm_list.

Signed-off-by: Geliang Tang <geliangt...@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martin...@linux.intel.com>
---
 net/mptcp/pm.c       | 3 ++-
 net/mptcp/protocol.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 7553f82076ca..a47436205d88 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -218,7 +218,7 @@ void mptcp_pm_rm_addr_received(struct mptcp_sock *msk,
 
        spin_lock_bh(&pm->lock);
        mptcp_pm_schedule_work(msk, MPTCP_PM_RM_ADDR_RECEIVED);
-       pm->rm_id = rm_list->ids[0];
+       pm->rm_list_rx = *rm_list;
        spin_unlock_bh(&pm->lock);
 }
 
@@ -300,6 +300,7 @@ void mptcp_pm_data_init(struct mptcp_sock *msk)
        msk->pm.local_addr_used = 0;
        msk->pm.subflows = 0;
        msk->pm.rm_list_tx.nr = 0;
+       msk->pm.rm_list_rx.nr = 0;
        WRITE_ONCE(msk->pm.work_pending, false);
        WRITE_ONCE(msk->pm.addr_signal, 0);
        WRITE_ONCE(msk->pm.accept_addr, false);
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index d7daf7e0d5d2..82a63abf2c7e 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -208,6 +208,7 @@ struct mptcp_pm_data {
        u8              subflows;
        u8              status;
        struct mptcp_rm_list rm_list_tx;
+       struct mptcp_rm_list rm_list_rx;
        u8              rm_id;
 };
 
-- 
2.30.2