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authorUrsula Braun <ubraun@linux.ibm.com>2020-02-14 10:59:00 +0300
committerDavid S. Miller <davem@davemloft.net>2020-02-14 18:09:36 +0300
commit369537c97024dca99303a8d4d6ab38b4f54d3909 (patch)
tree9c0d320edb8d2b084fcd1d721db5aa3315b4bc31 /net
parent67f562e3e147750a02b2a91d21a163fc44a1d13e (diff)
downloadlinux-369537c97024dca99303a8d4d6ab38b4f54d3909.tar.xz
net/smc: no peer ID in CLC decline for SMCD
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> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/smc/smc_clc.c4
1 files changed, 3 insertions, 1 deletions
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));