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| author |  Wen Gu <guwen@linux.alibaba.com>
| 2024-04-28 14:07:32 +0800 |
|---|---|---|
| committer |  Paolo Abeni <pabeni@redhat.com>
| 2024-04-30 13:24:48 +0200 |
| commit | d1d8d0b6c7c68b0665456831fa779174ebd78f90 (patch) | |
| tree | ee568441aed8f698c2ba000676668cc1d798aa4c /net/smc | |
| parent | net/smc: implement DMB-related operations of loopback-ism (diff) | |
| download | linux-d1d8d0b6c7c68b0665456831fa779174ebd78f90.tar.gz linux-d1d8d0b6c7c68b0665456831fa779174ebd78f90.tar.bz2 linux-d1d8d0b6c7c68b0665456831fa779174ebd78f90.zip | |
net/smc: mark optional smcd_ops and check for support when called
Some operations are not supported by new introduced Emulated-ISM, so
mark them as optional and check if the device supports them when called.
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Reviewed-and-tested-by: Jan Karcher <jaka@linux.ibm.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/smc_ism.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c index 051726586730..36459a3c739d 100644 --- a/net/smc/smc_ism.c +++ b/net/smc/smc_ism.c @@ -126,6 +126,8 @@ int smc_ism_get_vlan(struct smcd_dev *smcd, unsigned short vlanid) if (!vlanid) /* No valid vlan id */ return -EINVAL; + if (!smcd->ops->add_vlan_id) + return -EOPNOTSUPP; /* create new vlan entry, in case we need it */ new_vlan = kzalloc(sizeof(*new_vlan), GFP_KERNEL); @@ -171,6 +173,8 @@ int smc_ism_put_vlan(struct smcd_dev *smcd, unsigned short vlanid) if (!vlanid) /* No valid vlan id */ return -EINVAL; + if (!smcd->ops->del_vlan_id) + return -EOPNOTSUPP; spin_lock_irqsave(&smcd->lock, flags); list_for_each_entry(vlan, &smcd->vlan, list) { @@ -368,7 +372,8 @@ static void smcd_handle_sw_event(struct smc_ism_event_work *wrk) smc_smcd_terminate(wrk->smcd, &peer_gid, ev_info.vlan_id); break; case ISM_EVENT_CODE_TESTLINK: /* Activity timer */ - if (ev_info.code == ISM_EVENT_REQUEST) { + if (ev_info.code == ISM_EVENT_REQUEST && + wrk->smcd->ops->signal_event) { ev_info.code = ISM_EVENT_RESPONSE; wrk->smcd->ops->signal_event(wrk->smcd, &peer_gid, @@ -538,6 +543,8 @@ int smc_ism_signal_shutdown(struct smc_link_group *lgr) if (lgr->peer_shutdown) return 0; + if (!lgr->smcd->ops->signal_event) + return 0; memcpy(ev_info.uid, lgr->id, SMC_LGR_ID_SIZE); ev_info.vlan_id = lgr->vlan_id; |