From: Karsten Graul <kgraul@linux.ibm.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org,
heiko.carstens@de.ibm.com, raspl@linux.ibm.com,
ubraun@linux.ibm.com
Subject: [PATCH net 2/2] net/smc: no peer ID in CLC decline for SMCD
Date: Fri, 14 Feb 2020 08:59:00 +0100 [thread overview]
Message-ID: <20200214075900.31624-3-kgraul@linux.ibm.com> (raw)
In-Reply-To: <20200214075900.31624-1-kgraul@linux.ibm.com>
From: Ursula Braun <ubraun@linux.ibm.com>
Just SMCR requires a CLC Peer ID, but not SMCD. The field should be
zero for SMCD.
Fixes: c758dfddc1b5 ("net/smc: add SMC-D support in CLC messages")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
---
net/smc/smc_clc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
index 0879f7bed967..86cccc24e52e 100644
--- a/net/smc/smc_clc.c
+++ b/net/smc/smc_clc.c
@@ -372,7 +372,9 @@ int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info)
dclc.hdr.length = htons(sizeof(struct smc_clc_msg_decline));
dclc.hdr.version = SMC_CLC_V1;
dclc.hdr.flag = (peer_diag_info == SMC_CLC_DECL_SYNCERR) ? 1 : 0;
- memcpy(dclc.id_for_peer, local_systemid, sizeof(local_systemid));
+ if (smc->conn.lgr && !smc->conn.lgr->is_smcd)
+ memcpy(dclc.id_for_peer, local_systemid,
+ sizeof(local_systemid));
dclc.peer_diagnosis = htonl(peer_diag_info);
memcpy(dclc.trl.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER));
--
2.17.1
next prev parent reply other threads:[~2020-02-14 7:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 7:58 [PATCH net 0/2] net/smc: fixes for -net Karsten Graul
2020-02-14 7:58 ` [PATCH net 1/2] net/smc: transfer fasync_list in case of fallback Karsten Graul
2020-02-14 7:59 ` Karsten Graul [this message]
2020-02-14 15:14 ` [PATCH net 0/2] net/smc: fixes for -net David Miller
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