Warnings like below can fill up the dmesg while disconnecting RDMA
connections.
Hence, removing the unwanted WARN_ON.
[72103.557612] WARNING: CPU: 6 PID: 0 at
drivers/infiniband/sw/siw/siw_cm.c:1229 siw_cm_llp_data_ready+0xc1/0xd0
[siw]
[72103.557677] RIP: 0010:siw_cm_llp_data_ready+0xc1/0xd0 [siw]
[72103.557693] Call Trace:
[72103.557699] <IRQ>
[72103.557711] tcp_data_queue+0x226/0xb40
[72103.557714] tcp_rcv_established+0x220/0x620
[72103.557720] tcp_v4_do_rcv+0x12a/0x1e0
[72103.557722] tcp_v4_rcv+0xb05/0xc00
[72103.557728] ip_local_deliver_finish+0x69/0x210
[72103.557730] ip_local_deliver+0x6b/0xe0
[72103.557735] ip_rcv+0x273/0x362
[72103.557740] __netif_receive_skb_core+0xb35/0xc30
[72103.557752] netif_receive_skb_internal+0x3d/0xb0
[72103.557754] napi_gro_frags+0x13b/0x200
[72103.557788] t4_ethrx_handler+0x433/0x7d0 [cxgb4]
[72103.557800] process_responses+0x318/0x580 [cxgb4]
[72103.557820] napi_rx_handler+0x14/0x100 [cxgb4]
[72103.557822] net_rx_action+0x149/0x3b0
[72103.557826] __do_softirq+0xe3/0x30a
[72103.557831] irq_exit+0x100/0x110
[72103.557834] do_IRQ+0x7f/0xe0
[72103.557837] common_interrupt+0xf/0xf
[72103.557838] </IRQ>
Signed-off-by: Krishnamraju Eraparaju <krishna2@xxxxxxxxxxx>
---
drivers/infiniband/sw/siw/siw_cm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/sw/siw/siw_cm.c b/drivers/infiniband/sw/siw/siw_cm.c
index 3bccfef40e7e..ac86363ce1a2 100644
--- a/drivers/infiniband/sw/siw/siw_cm.c
+++ b/drivers/infiniband/sw/siw/siw_cm.c
@@ -1225,10 +1225,9 @@ static void siw_cm_llp_data_ready(struct sock *sk)
read_lock(&sk->sk_callback_lock);
cep = sk_to_cep(sk);
- if (!cep) {
- WARN_ON(1);
+ if (!cep)
goto out;
- }
+
siw_dbg_cep(cep, "state: %d\n", cep->state);
switch (cep->state) {
--
2.23.0.rc0
