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[net,v2,7/8] mptcp: avoid setting TCP_CLOSE state twice

Message ID 20230227-upstream-net-20230227-mptcp-fixes-v2-7-47c2e95eada9@tessares.net (mailing list archive)
State Accepted
Commit 3ba14528684f528566fb7d956bfbfb958b591d86
Delegated to: Netdev Maintainers
Headers show
Series mptcp: fixes for 6.3 | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 20 this patch: 20
netdev/cc_maintainers fail 1 blamed authors not CCed: mathew.j.martineau@linux.intel.com; 1 maintainers not CCed: mathew.j.martineau@linux.intel.com
netdev/build_clang success Errors and warnings before: 18 this patch: 18
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 20 this patch: 20
netdev/checkpatch warning WARNING: Unknown link reference 'Closes:', use 'Link:' instead
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Matthieu Baerts March 9, 2023, 2:50 p.m. UTC 
tcp_set_state() is called from tcp_done() already.

There is then no need to first set the state to TCP_CLOSE, then call
tcp_done().

Fixes: d582484726c4 ("mptcp: fix fallback for MP_JOIN subflows")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/362
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 net/mptcp/subflow.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 2aadc8733369..a0041360ee9d 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -406,7 +406,6 @@  void mptcp_subflow_reset(struct sock *ssk)
 	/* must hold: tcp_done() could drop last reference on parent */
 	sock_hold(sk);
 
-	tcp_set_state(ssk, TCP_CLOSE);
 	tcp_send_active_reset(ssk, GFP_ATOMIC);
 	tcp_done(ssk);
 	if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags) &&