selftests: net: using ping6 for IPv6 in udpgro_fwd.sh

udpgro_fwd.sh output following message:
  ping: 2001:db8:1::100: Address family for hostname not supported

Using ping6 when pinging IPv6 addresses.

Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/udpgro_fwd.sh b/tools/testing/selftests/net/udpgro_fwd.sh
index 6a3985b8cd7f6ee50a2babf51e4c4234728dca20..3ea73013d9568cc8417faa41d003be1c229f02c8 100755 (executable)
--- a/tools/testing/selftests/net/udpgro_fwd.sh
+++ b/tools/testing/selftests/net/udpgro_fwd.sh
@@ -185,6 +185,7 @@ for family in 4 6; do
        IPT=iptables
        SUFFIX=24
        VXDEV=vxlan
+       PING=ping
 
        if [ $family = 6 ]; then
                BM_NET=$BM_NET_V6
@@ -192,6 +193,7 @@ for family in 4 6; do
                SUFFIX="64 nodad"
                VXDEV=vxlan6
                IPT=ip6tables
+               PING="ping6"
        fi
 
        echo "IPv$family"
@@ -237,7 +239,7 @@ for family in 4 6; do
 
        # load arp cache before running the test to reduce the amount of
        # stray traffic on top of the UDP tunnel
-       ip netns exec $NS_SRC ping -q -c 1 $OL_NET$DST_NAT >/dev/null
+       ip netns exec $NS_SRC $PING -q -c 1 $OL_NET$DST_NAT >/dev/null
        run_test "GRO fwd over UDP tunnel" $OL_NET$DST_NAT 1 1 $OL_NET$DST
        cleanup