[patch net-next v5 repost 3/5] selftests: forwarding: add check_driver() helper

[Jiri Pirko <jiri@resnulli.us>]

From: Jiri Pirko <jiri@nvidia.com>

Add a helper to be used to check if the netdevice is backed by specified
driver.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 tools/testing/selftests/net/forwarding/lib.sh | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 9d6802c6c023..00e089dd951d 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -278,10 +278,17 @@ check_port_mab_support()
 	fi
 }
 
-if [[ "$(id -u)" -ne 0 ]]; then
-	echo "SKIP: need root privileges"
-	exit $ksft_skip
-fi
+check_driver()
+{
+	local dev=$1; shift
+	local expected=$1; shift
+	local driver_name=`driver_name_get $dev`
+
+	if [[ $driver_name != $expected ]]; then
+		echo "SKIP: expected driver $expected for $dev, got $driver_name instead"
+		exit $ksft_skip
+	fi
+}
 
 if [[ "$CHECK_TC" = "yes" ]]; then
 	check_tc_version
-- 
2.44.0