The parent field of a struct device may be NULL. The macro
ibdev_to_node() should check for that.
Signed-off-by: Ka-Cheong Poon <ka-cheong.p...@oracle.com>
---
net/rds/ib.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 5ae069d..8dfff43 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -264,7 +264,13 @@ struct rds_ib_device {
int *vector_load;
};
-#define ibdev_to_node(ibdev) dev_to_node((ibdev)->dev.parent)
+static inline int ibdev_to_node(struct ib_device *ibdev)
+{
+ struct device *parent;
+
+ parent = ibdev->dev.parent;
+ return parent ? dev_to_node(parent) : NUMA_NO_NODE;
+}
#define rdsibdev_to_node(rdsibdev) ibdev_to_node(rdsibdev->dev)
/* bits for i_ack_flags */
--
1.8.3.1
