Re: [PATCH linux-next] IB/cm:Change the conditional statements

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On 8/1/2022 10:31 AM, cgel.zte@xxxxxxxxx wrote:
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From: ye xingchen <ye.xingchen@xxxxxxxxxx>

Conditional statements could changed to be easier explain.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>
---
  drivers/infiniband/core/cm.c | 9 ++-------
  1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index b985e0d9bc05..6e323d0c0fce 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -676,14 +676,9 @@ static struct cm_id_private *cm_find_listen(struct ib_device *device,
                         refcount_inc(&cm_id_priv->refcount);
                         return cm_id_priv;
                 }
-               if (device < cm_id_priv->id.device)
+               if (device < cm_id_priv->id.device ||
+                   be64_lt(service_id, cm_id_priv->id.service_id))
                         node = node->rb_left;
-               else if (device > cm_id_priv->id.device)
-                       node = node->rb_right;
-               else if (be64_lt(service_id, cm_id_priv->id.service_id))
-                       node = node->rb_left;
-               else if (be64_gt(service_id, cm_id_priv->id.service_id))
-                       node = node->rb_right;
                 else
                         node = node->rb_right;
         }
--
2.25.1

This is not correct, ref.:
https://lore.kernel.org/lkml/20220624201733.GA284068@xxxxxxxxxx/t/



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