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selftests: forwarding: devlink_lib: Simplify deduction of DEVLINK_DEV

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

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2019-03-28 12:12:23 +00:00 committed by David S. Miller
parent 2cca8751af
commit 8e46aee697
1 changed files with 2 additions and 3 deletions
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5
tools/testing/selftests/net/forwarding/devlink_lib.sh
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@ -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