diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
index 40f16f2a3afdd3359ccae8be16f42023cef2aea1..5cbff8038f84cb8e4d4ab3290ac90ebdc762c64b 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
@@ -36,8 +36,6 @@ source $lib_dir/lib.sh
 
 h1_create()
 {
-	local dscp;
-
 	simple_if_init $h1 192.0.2.1/28
 	tc qdisc add dev $h1 clsact
 	dscp_capture_install $h1 10
@@ -67,6 +65,7 @@ h2_destroy()
 dscp_map()
 {
 	local base=$1; shift
+	local prio
 
 	for prio in {0..7}; do
 		echo app=$prio,5,$((base + prio))
@@ -138,6 +137,7 @@ dscp_ping_test()
 	local prio=$1; shift
 	local dev_10=$1; shift
 	local dev_20=$1; shift
+	local key
 
 	local dscp_10=$(((prio + 10) << 2))
 	local dscp_20=$(((prio + 20) << 2))
@@ -175,6 +175,8 @@ dscp_ping_test()
 
 test_dscp()
 {
+	local prio
+
 	for prio in {0..7}; do
 		dscp_ping_test v$h1 192.0.2.1 192.0.2.2 $prio $h1 $h2
 	done
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh
index 9faf02e326270bc00ce20227f9f1b66ca748f8ca..f25e3229e1cc8e577b9919082cac4251dc68767b 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh
@@ -52,8 +52,6 @@ reprioritize()
 
 h1_create()
 {
-	local dscp;
-
 	simple_if_init $h1 192.0.2.1/28
 	tc qdisc add dev $h1 clsact
 	dscp_capture_install $h1 0
@@ -87,6 +85,7 @@ h2_destroy()
 dscp_map()
 {
 	local base=$1; shift
+	local prio
 
 	for prio in {0..7}; do
 		echo app=$prio,5,$((base + prio))
@@ -156,6 +155,7 @@ dscp_ping_test()
 	local reprio=$1; shift
 	local dev1=$1; shift
 	local dev2=$1; shift
+	local i
 
 	local prio2=$($reprio $prio)   # ICMP Request egress prio
 	local prio3=$($reprio $prio2)  # ICMP Response egress prio
@@ -205,6 +205,7 @@ __test_update()
 {
 	local update=$1; shift
 	local reprio=$1; shift
+	local prio
 
 	sysctl_restore net.ipv4.ip_forward_update_priority
 	sysctl_set net.ipv4.ip_forward_update_priority $update