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* [MPTCP] [MPTCP][PATCH v5 mptcp-next 2/5] mptcp: remove all subflows involving id 0 address
@ 2021-03-03 13:13 Geliang Tang
  0 siblings, 0 replies; only message in thread
From: Geliang Tang @ 2021-03-03 13:13 UTC (permalink / raw)
  To: mptcp

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There's only one subflow involving the non-zero id address, but there
may be multi subflows involving the id 0 address.

Here's an example:

 local_id=0, remote_id=0
 local_id=1, remote_id=0
 local_id=0, remote_id=1

If the removing address id is 0, all the subflows involving the id 0
address need to be removed.

In mptcp_pm_nl_rm_addr_received/mptcp_pm_nl_rm_subflow_received, the
"break" prevents the iteration to the next subflow, so this patch
dropped them.

Signed-off-by: Geliang Tang <geliangtang(a)gmail.com>
---
 net/mptcp/pm_netlink.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index fa1dd6b8ec2f..12e75ad29dc4 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -629,8 +629,6 @@ static void mptcp_pm_nl_rm_addr_received(struct mptcp_sock *msk)
 			WRITE_ONCE(msk->pm.accept_addr, true);
 
 			__MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_RMADDR);
-
-			break;
 		}
 	}
 }
@@ -703,8 +701,6 @@ void mptcp_pm_nl_rm_subflow_received(struct mptcp_sock *msk,
 			msk->pm.subflows--;
 
 			__MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_RMSUBFLOW);
-
-			break;
 		}
 	}
 }
-- 
2.29.2

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2021-03-03 13:13 [MPTCP] [MPTCP][PATCH v5 mptcp-next 2/5] mptcp: remove all subflows involving id 0 address Geliang Tang

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