[PATCH net-next 09/15] selftests: netfilter: place checktool helper in lib.sh

[Florian Westphal <fw@strlen.de>]

... so it doesn't have to be repeated everywhere.

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 tools/testing/selftests/net/netfilter/br_netfilter.sh      | 6 +-----
 .../testing/selftests/net/netfilter/conntrack_ipip_mtu.sh  | 7 -------
 tools/testing/selftests/net/netfilter/lib.sh               | 7 +++++++
 3 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/net/netfilter/br_netfilter.sh b/tools/testing/selftests/net/netfilter/br_netfilter.sh
index ea3afd6d401f..1084faf88f0b 100755
--- a/tools/testing/selftests/net/netfilter/br_netfilter.sh
+++ b/tools/testing/selftests/net/netfilter/br_netfilter.sh
@@ -11,11 +11,7 @@
 
 source lib.sh
 
-nft --version > /dev/null 2>&1
-if [ $? -ne 0 ];then
-	echo "SKIP: Could not run test without nft tool"
-	exit $ksft_skip
-fi
+checktool "nft --version" "run test without nft tool"
 
 cleanup() {
 	cleanup_all_ns
diff --git a/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh b/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
index f87ca4c59d3b..ac0dff0f80d7 100755
--- a/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
+++ b/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
@@ -24,13 +24,6 @@ source lib.sh
 
 rx=$(mktemp)
 
-checktool (){
-	if ! $1 > /dev/null 2>&1; then
-		echo "SKIP: Could not $2"
-		exit $ksft_skip
-	fi
-}
-
 checktool "iptables --version" "run test without iptables"
 checktool "socat -h" "run test without socat"
 
diff --git a/tools/testing/selftests/net/netfilter/lib.sh b/tools/testing/selftests/net/netfilter/lib.sh
index eb109eb527db..bedd35298e15 100644
--- a/tools/testing/selftests/net/netfilter/lib.sh
+++ b/tools/testing/selftests/net/netfilter/lib.sh
@@ -1,3 +1,10 @@
 net_netfilter_dir=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
 
 source "$net_netfilter_dir/../lib.sh"
+
+checktool (){
+	if ! $1 > /dev/null 2>&1; then
+		echo "SKIP: Could not $2"
+		exit $ksft_skip
+	fi
+}
-- 
2.43.2