selftests: net: return Kselftest Skip code for skipped tests

When net test is skipped because of unmet dependencies and/or unsupported
configuration, it returns 0 which is treated as a pass by the Kselftest
framework. This leads to false positive result even when the test could
not be run.

Change it to return kselftest skip code when a test gets skipped to
clearly report that the test could not be run.

Kselftest framework SKIP code is 4 and the framework prints appropriate
messages to indicate that the test is skipped.

Change psock_tpacket to use ksft_exit_skip() when a non-root user runs
the test and add an explicit check for root and a clear message, instead
of failing the test when /sys/power/state file open fails.

Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>

1 files changed, 10 insertions, 6 deletions

diff --git a/tools/testing/selftests/net/netdevice.sh b/tools/testing/selftests/net/netdevice.sh
index 903679e0ff31..e3afcb424710 100755
--- a/tools/testing/selftests/net/netdevice.sh
+++ b/tools/testing/selftests/net/netdevice.sh
@@ -8,6 +8,9 @@
 # if not they probably have failed earlier in the boot process and their logged error will be catched by another test
 #
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
 # this function will try to up the interface
 # if already up, nothing done
 # arg1: network interface name
@@ -18,7 +21,7 @@ kci_net_start()
 	ip link show "$netdev" |grep -q UP
 	if [ $? -eq 0 ];then
 		echo "SKIP: $netdev: interface already up"
-		return 0
+		return $ksft_skip
 	fi
 
 	ip link set "$netdev" up
@@ -61,12 +64,12 @@ kci_net_setup()
 	ip address show "$netdev" |grep '^[[:space:]]*inet'
 	if [ $? -eq 0 ];then
 		echo "SKIP: $netdev: already have an IP"
-		return 0
+		return $ksft_skip
 	fi
 
 	# TODO what ipaddr to set ? DHCP ?
 	echo "SKIP: $netdev: set IP address"
-	return 0
+	return $ksft_skip
 }
 
 # test an ethtool command
@@ -84,6 +87,7 @@ kci_netdev_ethtool_test()
 	if [ $ret -ne 0 ];then
 		if [ $ret -eq "$1" ];then
 			echo "SKIP: $netdev: ethtool $2 not supported"
+			return $ksft_skip
 		else
 			echo "FAIL: $netdev: ethtool $2"
 			return 1
@@ -104,7 +108,7 @@ kci_netdev_ethtool()
 	ethtool --version 2>/dev/null >/dev/null
 	if [ $? -ne 0 ];then
 		echo "SKIP: ethtool not present"
-		return 1
+		return $ksft_skip
 	fi
 
 	TMP_ETHTOOL_FEATURES="$(mktemp)"
@@ -176,13 +180,13 @@ kci_test_netdev()
 #check for needed privileges
 if [ "$(id -u)" -ne 0 ];then
 	echo "SKIP: Need root privileges"
-	exit 0
+	exit $ksft_skip
 fi
 
 ip link show 2>/dev/null >/dev/null
 if [ $? -ne 0 ];then
 	echo "SKIP: Could not run test without the ip tool"
-	exit 0
+	exit $ksft_skip
 fi
 
 TMP_LIST_NETDEV="$(mktemp)"