[patch net-next v3 2/6] selftests: forwarding: move couple of initial check to the beginning

[Jiri Pirko <jiri@resnulli.us>]

From: Jiri Pirko <jiri@nvidia.com>

These two check can be done at he very beginning of the script.
As the follow up patch needs to add early code that needs to be executed
after the checks, move them.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
---
 tools/testing/selftests/net/forwarding/lib.sh | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 7913c6ee418d..2e7695b94b6b 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -84,6 +84,16 @@ declare -A NETIFS=(
 # e.g. a low-power board.
 : "${KSFT_MACHINE_SLOW:=no}"
 
+if [[ "$(id -u)" -ne 0 ]]; then
+	echo "SKIP: need root privileges"
+	exit $ksft_skip
+fi
+
+if [[ ! -v NUM_NETIFS ]]; then
+	echo "SKIP: importer does not define \"NUM_NETIFS\""
+	exit $ksft_skip
+fi
+
 net_forwarding_dir=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
 
 if [[ -f $net_forwarding_dir/forwarding.config ]]; then
@@ -241,11 +251,6 @@ check_port_mab_support()
 	fi
 }
 
-if [[ "$(id -u)" -ne 0 ]]; then
-	echo "SKIP: need root privileges"
-	exit $ksft_skip
-fi
-
 if [[ "$CHECK_TC" = "yes" ]]; then
 	check_tc_version
 fi
-- 
2.44.0