netdev - [PATCH] selftests: can: test_raw_filter.sh: add support of physical interfaces

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Message-ID: <20250521141945.13358-2-mailhol.vincent@wanadoo.fr>
Date: Wed, 21 May 2025 23:18:53 +0900
From: Vincent Mailhol <mailhol.vincent@...adoo.fr>
To: Felix Maurer <fmaurer@...hat.com>,
	socketcan@...tkopp.net,
	mkl@...gutronix.de
Cc: shuah@...nel.org,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horms@...nel.org,
	linux-can@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	dcaratti@...hat.com,
	fstornio@...hat.com,
	Vincent Mailhol <mailhol.vincent@...adoo.fr>
Subject: [PATCH] selftests: can: test_raw_filter.sh: add support of physical interfaces

Allow the user to specify a physical interface through the $CANIF
environment variable. Add a $BITRATE environment variable set with a
default value of 500000.

If $CANIF is omitted or if it starts with vcan (e.g. vcan1), the test
will use the virtual can interface type. Otherwise, it will assume
that the provided interface is a physical can interface.

For example:

  CANIF=can1 BITRATE=1000000 ./test_raw_filter.sh

will run set the can1 interface with a bitrate of one million and run
the tests on it.

Signed-off-by: Vincent Mailhol <mailhol.vincent@...adoo.fr>
---
This depends on "selftests: can: Import tst-filter from can-tests"
from Felix.

Link: https://lore.kernel.org/linux-can/87d289f333cba7bbcc9d69173ea1c320e4b5c3b8.1747833283.git.fmaurer@redhat.com/
---
 tools/testing/selftests/net/can/test_raw_filter.sh | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/can/test_raw_filter.sh b/tools/testing/selftests/net/can/test_raw_filter.sh
index 2216134b431b..276d6c06ac95 100755
--- a/tools/testing/selftests/net/can/test_raw_filter.sh
+++ b/tools/testing/selftests/net/can/test_raw_filter.sh
@@ -9,17 +9,25 @@ net_dir=$(dirname $0)/..
 source $net_dir/lib.sh
 
 export CANIF=${CANIF:-"vcan0"}
+BITRATE=${BITRATE:-500000}
 
 setup()
 {
-	ip link add name $CANIF type vcan || exit $ksft_skip
+	if [[ $CANIF == vcan* ]]; then
+		ip link add name $CANIF type vcan || exit $ksft_skip
+	else
+		ip link set dev $CANIF type can bitrate $BITRATE || exit $ksft_skip
+	fi
 	ip link set dev $CANIF up
 	pwd
 }
 
 cleanup()
 {
-	ip link delete $CANIF
+	ip link set dev $CANIF down
+	if [[ $CANIF == vcan* ]]; then
+		ip link delete $CANIF
+	fi
 }
 
 test_raw_filter()
-- 
2.49.0