netdev - Re: [RFC PATCH net-next 10/10] selftests: dsa: Replace symlinks by wrapper script

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Date: Thu, 28 Dec 2023 14:36:58 -0500
From: Benjamin Poirier <bpoirier@...dia.com>
To: Vladimir Oltean <vladimir.oltean@....com>
Cc: netdev@...r.kernel.org, Shuah Khan <shuah@...nel.org>,
	Petr Machata <petrm@...dia.com>, Hangbin Liu <liuhangbin@...il.com>
Subject: Re: [RFC PATCH net-next 10/10] selftests: dsa: Replace symlinks by
 wrapper script

On 2023-12-27 22:11 +0200, Vladimir Oltean wrote:
> On Fri, Dec 22, 2023 at 08:58:36AM -0500, Benjamin Poirier wrote:
> > diff --git a/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
> > new file mode 100755
> > index 000000000000..4106c0a102ea
> > --- /dev/null
> > +++ b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
> > @@ -0,0 +1,9 @@
> > +#!/bin/bash
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +libdir=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
> > +testname=$(basename "${BASH_SOURCE[0]}")
> > +
> > +source "$libdir"/forwarding.config
> > +cd "$libdir"/../../../net/forwarding/ || exit 1
> > +source "./$testname" "$@"
> 
> Thanks for working on this. I don't dislike the solution. Just one
> question.  Can "run_net_forwarding_test.sh" be one day moved from
> tools/testing/selftests/drivers/net/dsa/ without duplicating it,
> should anyone else need the same setup?

Yes, it's possible. I didn't think about it before but I tested the
approach below. It applies over the changes I just sent in my previous
mail about patch 5.

Thank you for your review and suggestions.

diff --git a/tools/testing/selftests/drivers/net/dsa/Makefile b/tools/testing/selftests/drivers/net/dsa/Makefile
index cd6817fe5be6..5ff77c851642 100644
--- a/tools/testing/selftests/drivers/net/dsa/Makefile
+++ b/tools/testing/selftests/drivers/net/dsa/Makefile
@@ -12,10 +12,10 @@ TEST_PROGS = bridge_locked_port.sh \
 	test_bridge_fdb_stress.sh
 
 TEST_FILES := \
-	run_net_forwarding_test.sh \
 	forwarding.config
 
 TEST_INCLUDES := \
+	run_net_forwarding_test.sh \
 	../../../net/forwarding/bridge_locked_port.sh \
 	../../../net/forwarding/bridge_mdb.sh \
 	../../../net/forwarding/bridge_mld.sh \
@@ -25,6 +25,7 @@ TEST_INCLUDES := \
 	../../../net/forwarding/lib.sh \
 	../../../net/forwarding/local_termination.sh \
 	../../../net/forwarding/no_forwarding.sh \
+	../../../net/forwarding/run_net_forwarding_test.sh \
 	../../../net/forwarding/tc_actions.sh \
 	../../../net/forwarding/tc_common.sh \
 	../../../net/lib.sh
diff --git a/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
deleted file mode 100755
index 4106c0a102ea..000000000000
--- a/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
-
-libdir=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
-testname=$(basename "${BASH_SOURCE[0]}")
-
-source "$libdir"/forwarding.config
-cd "$libdir"/../../../net/forwarding/ || exit 1
-source "./$testname" "$@"
diff --git a/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
new file mode 120000
index 000000000000..2e7e656349e6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
@@ -0,0 +1 @@
+../../../net/forwarding/run_net_forwarding_test.sh
\ No newline at end of file
diff --git a/tools/testing/selftests/net/forwarding/run_net_forwarding_test.sh b/tools/testing/selftests/net/forwarding/run_net_forwarding_test.sh
new file mode 100755
index 000000000000..cfddadb57fe7
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/run_net_forwarding_test.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+linkdir=$(readlink -f "$(dirname "$0")")
+libdir=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
+testname=$(basename "${BASH_SOURCE[0]}")
+
+source "$linkdir"/forwarding.config
+cd "$libdir" || exit 1
+source "./$testname" "$@"