From: Petr Machata <pe...@mellanox.com>

Use devlink -j and jq for more accurate querying. Use cut -f-2 instead
of rev-cut-rev combo.

Signed-off-by: Petr Machata <pe...@mellanox.com>
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
---
 tools/testing/selftests/net/forwarding/devlink_lib.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh 
b/tools/testing/selftests/net/forwarding/devlink_lib.sh
index 981b897d418d..61d3579a62af 100644
--- a/tools/testing/selftests/net/forwarding/devlink_lib.sh
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -4,9 +4,8 @@
 ##############################################################################
 # Defines
 
-DEVLINK_DEV=$(devlink port show | grep "${NETIFS[p1]}" | \
-             grep -v "${NETIFS[p1]}[0-9]" | cut -d" " -f1 | \
-             rev | cut -d"/" -f2- | rev)
+DEVLINK_DEV=$(devlink port show "${NETIFS[p1]}" -j \
+                    | jq -r '.port | keys[]' | cut -d/ -f-2)
 if [ -z "$DEVLINK_DEV" ]; then
        echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
        exit 1
-- 
2.20.1

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