selftests/net: fix missing xdp_dummy

After commit afef88e6 ("selftests/bpf: Store BPF object files with
.bpf.o extension"), we should use xdp_dummy.bpf.o instade of xdp_dummy.o.

In addition, use the BPF_FILE variable to save the BPF object file name,
which can be better identified and modified.

Fixes: afef88e6 ("selftests/bpf: Store BPF object files with .bpf.o extension")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Cc: Daniel Müller <deso@posteo.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/udpgro.sh

@@ -5,6 +5,8 @@
 
 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
 
+BPF_FILE="../bpf/xdp_dummy.bpf.o"
+
 # set global exit status, but never reset nonzero one.
 check_err()
 {
@@ -34,7 +36,7 @@ cfg_veth() {
 	ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
 	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
 	ip -netns "${PEER_NS}" link set dev veth1 up
-	ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp
+	ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
 }
 
 run_one() {
@@ -195,8 +197,8 @@ run_all() {
 	return $ret
 }
 
-if [ ! -f ../bpf/xdp_dummy.o ]; then
-	echo "Missing xdp_dummy helper. Build bpf selftest first"
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Build bpf selftest first"
 	exit -1
 fi
 

tools/testing/selftests/net/udpgro_bench.sh

@@ -5,6 +5,8 @@
 
 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
 
+BPF_FILE="../bpf/xdp_dummy.bpf.o"
+
 cleanup() {
 	local -r jobs="$(jobs -p)"
 	local -r ns="$(ip netns list|grep $PEER_NS)"
@@ -34,7 +36,7 @@ run_one() {
 	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
 	ip -netns "${PEER_NS}" link set dev veth1 up
 
-	ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp
+	ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
 	ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
 	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
 
@@ -80,8 +82,8 @@ run_all() {
 	run_udp "${ipv6_args}"
 }
 
-if [ ! -f ../bpf/xdp_dummy.o ]; then
-	echo "Missing xdp_dummy helper. Build bpf selftest first"
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Build bpf selftest first"
 	exit -1
 fi
 

tools/testing/selftests/net/udpgro_frglist.sh

@@ -5,6 +5,8 @@
 
 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
 
+BPF_FILE="../bpf/xdp_dummy.bpf.o"
+
 cleanup() {
 	local -r jobs="$(jobs -p)"
 	local -r ns="$(ip netns list|grep $PEER_NS)"
@@ -36,7 +38,7 @@ run_one() {
 	ip netns exec "${PEER_NS}" ethtool -K veth1 rx-gro-list on
 
 
-	ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp
+	ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
 	tc -n "${PEER_NS}" qdisc add dev veth1 clsact
 	tc -n "${PEER_NS}" filter add dev veth1 ingress prio 4 protocol ipv6 bpf object-file ../bpf/nat6to4.o section schedcls/ingress6/nat_6  direct-action
 	tc -n "${PEER_NS}" filter add dev veth1 egress prio 4 protocol ip bpf object-file ../bpf/nat6to4.o section schedcls/egress4/snat4 direct-action
@@ -81,8 +83,8 @@ run_all() {
 	run_udp "${ipv6_args}"
 }
 
-if [ ! -f ../bpf/xdp_dummy.o ]; then
-	echo "Missing xdp_dummy helper. Build bpf selftest first"
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Build bpf selftest first"
 	exit -1
 fi
 

tools/testing/selftests/net/udpgro_fwd.sh

 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
+BPF_FILE="../bpf/xdp_dummy.bpf.o"
 readonly BASE="ns-$(mktemp -u XXXXXX)"
 readonly SRC=2
 readonly DST=1
@@ -46,7 +47,7 @@ create_ns() {
 		ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
 		ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
 	done
-	ip -n $NS_DST link set veth$DST xdp object ../bpf/xdp_dummy.o section xdp 2>/dev/null
+	ip -n $NS_DST link set veth$DST xdp object ${BPF_FILE} section xdp 2>/dev/null
 }
 
 create_vxlan_endpoint() {

tools/testing/selftests/net/veth.sh

 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
+BPF_FILE="../bpf/xdp_dummy.bpf.o"
 readonly STATS="$(mktemp -p /tmp ns-XXXXXX)"
 readonly BASE=`basename $STATS`
 readonly SRC=2
@@ -216,8 +217,8 @@ while getopts "hs:" option; do
 	esac
 done
 
-if [ ! -f ../bpf/xdp_dummy.o ]; then
-	echo "Missing xdp_dummy helper. Build bpf selftest first"
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Build bpf selftest first"
 	exit 1
 fi
 
@@ -288,14 +289,14 @@ if [ $CPUS -gt 1 ]; then
 	ip netns exec $NS_DST ethtool -L veth$DST rx 1 tx 2 2>/dev/null
 	ip netns exec $NS_SRC ethtool -L veth$SRC rx 1 tx 2 2>/dev/null
 	printf "%-60s" "bad setting: XDP with RX nr less than TX"
-	ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o \
+	ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
 		section xdp 2>/dev/null &&\
 		echo "fail - set operation successful ?!?" || echo " ok "
 
 	# the following tests will run with multiple channels active
 	ip netns exec $NS_SRC ethtool -L veth$SRC rx 2
 	ip netns exec $NS_DST ethtool -L veth$DST rx 2
-	ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o \
+	ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
 		section xdp 2>/dev/null
 	printf "%-60s" "bad setting: reducing RX nr below peer TX with XDP set"
 	ip netns exec $NS_DST ethtool -L veth$DST rx 1 2>/dev/null &&\
@@ -311,7 +312,7 @@ if [ $CPUS -gt 2 ]; then
 	chk_channels "setting invalid channels nr" $DST 2 2
 fi
 
-ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o section xdp 2>/dev/null
+ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp 2>/dev/null
 chk_gro_flag "with xdp attached - gro flag" $DST on
 chk_gro_flag "        - peer gro flag" $SRC off
 chk_tso_flag "        - tso flag" $SRC off