net/smc: ignore loopback-ism when dumping SMC-D devices
Since loopback-ism is not a PCI device, the PCI information fed back by
smc_nl_handle_smcd_dev() does not apply to loopback-ism. So currently
ignore loopback-ism when dumping SMC-D devices. The netlink function of
loopback-ism will be refactored when SMC netlink interface is updated.
Link: https://lore.kernel.org/r/caab067b-f5c3-490f-9259-262624c236b4@linux.ibm.com/
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>
diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c
index 36459a3..188fd28 100644
--- a/net/smc/smc_ism.c
+++ b/net/smc/smc_ism.c
@@ -322,6 +322,8 @@
list_for_each_entry(smcd, &dev_list->list, list) {
if (num < snum)
goto next;
+ if (smc_ism_is_loopback(smcd))
+ goto next;
if (smc_nl_handle_smcd_dev(smcd, skb, cb))
goto errout;
next:
diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h
index 165cd01..3229735 100644
--- a/net/smc/smc_ism.h
+++ b/net/smc/smc_ism.h
@@ -84,4 +84,9 @@
return __smc_ism_is_emulated(chid);
}
+static inline bool smc_ism_is_loopback(struct smcd_dev *smcd)
+{
+ return (smcd->ops->get_chid(smcd) == 0xFFFF);
+}
+
#endif