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authorWen Gu <guwen@linux.alibaba.com>2024-04-28 09:07:33 +0300
committerPaolo Abeni <pabeni@redhat.com>2024-04-30 14:24:48 +0300
commitc8df2d449f645f90a67aaa05a617e6e86c3f1c5e (patch)
tree5a5acdfe31a5332bffcf8bcd1d8c5762f7a0c1d9
parentd1d8d0b6c7c68b0665456831fa779174ebd78f90 (diff)
downloadlinux-c8df2d449f645f90a67aaa05a617e6e86c3f1c5e.tar.xz
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>
-rw-r--r--net/smc/smc_ism.c2
-rw-r--r--net/smc/smc_ism.h5
2 files changed, 7 insertions, 0 deletions
diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c
index 36459a3c739d..188fd28423c2 100644
--- a/net/smc/smc_ism.c
+++ b/net/smc/smc_ism.c
@@ -322,6 +322,8 @@ static void smc_nl_prep_smcd_dev(struct smcd_dev_list *dev_list,
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 165cd013404b..322973527c61 100644
--- a/net/smc/smc_ism.h
+++ b/net/smc/smc_ism.h
@@ -84,4 +84,9 @@ static inline bool smc_ism_is_emulated(struct smcd_dev *smcd)
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