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Date:   Thu, 27 Jun 2019 17:12:42 +0200
From:   Florian Westphal <fw@...len.de>
To:     <netdev@...r.kernel.org>
Cc:     Florian Westphal <fw@...len.de>
Subject: [PATCH net] selftests: rtnetlink: skip ipsec offload tests if netdevsim isn't present

running the script on systems without netdevsim now prints:

SKIP: ipsec_offload can't load netdevsim

instead of error message & failed status.

Signed-off-by: Florian Westphal <fw@...len.de>
---
 Feel free to apply to -next, its not a bug fix per se.

 tools/testing/selftests/net/rtnetlink.sh | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index b25c9fe019d2..a7a443bdbdd9 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -699,13 +699,17 @@ kci_test_ipsec_offload()
 	sysfsd=/sys/kernel/debug/netdevsim/netdevsim0/ports/0/
 	sysfsf=$sysfsd/ipsec
 	sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/
+	probed=false
 
 	# setup netdevsim since dummydev doesn't have offload support
-	modprobe netdevsim
-	check_err $?
-	if [ $ret -ne 0 ]; then
-		echo "FAIL: ipsec_offload can't load netdevsim"
-		return 1
+	if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+		modprobe -q netdevsim
+		check_err $?
+		if [ $ret -ne 0 ]; then
+			echo "SKIP: ipsec_offload can't load netdevsim"
+			return $ksft_skip
+		fi
+		probed=true
 	fi
 
 	echo "0" > /sys/bus/netdevsim/new_device
@@ -785,7 +789,7 @@ EOF
 	fi
 
 	# clean up any leftovers
-	rmmod netdevsim
+	$probed && rmmod netdevsim
 
 	if [ $ret -ne 0 ]; then
 		echo "FAIL: ipsec_offload"
-- 
2.21.0

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