netdev - Re: [PATCH net 2/2] selftests: bonding: add test for passive LACP mode

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Message-ID: <aIGxI_ctF5RPEph8@fedora>
Date: Thu, 24 Jul 2025 04:05:55 +0000
From: Hangbin Liu <liuhangbin@...il.com>
To: Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, Jay Vosburgh <jv@...sburgh.net>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	Simon Horman <horms@...nel.org>, Shuah Khan <shuah@...nel.org>,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 2/2] selftests: bonding: add test for passive LACP
 mode

On Tue, Jul 15, 2025 at 11:37:54AM +0200, Paolo Abeni wrote:
> > diff --git a/tools/testing/selftests/drivers/net/bonding/bond_passive_lacp.sh b/tools/testing/selftests/drivers/net/bonding/bond_passive_lacp.sh
> > new file mode 100755
> > index 000000000000..4cf8a5999aaa
> > --- /dev/null
> > +++ b/tools/testing/selftests/drivers/net/bonding/bond_passive_lacp.sh
> > @@ -0,0 +1,21 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +#
> > +# Testing if bond works with lacp_active = off
> > +
> > +lib_dir=$(dirname "$0")
> > +source ${lib_dir}/bond_topo_lacp.sh
> 
> shellcheck is not super happy about 'source' usage:
> 
> In bond_passive_lacp.sh line 7:
> source ${lib_dir}/bond_topo_lacp.sh
> ^-- SC3046 (warning): In POSIX sh, 'source' in place of '.' is undefined.
> ^-- SC3051 (warning): In POSIX sh, 'source' in place of '.' is undefined.
> 
> either switch to '. ' or use bash instead of 'sh'.

Hi Paolo,

I updated the case and remove the source file bond_topo_lacp.sh.
Instead I source the forwarding lib directly like:

lib_dir=$(dirname "$0")
source "$lib_dir"/../../../net/forwarding/lib.sh

But this cause shell check unable to find the lib.sh as $lib_dir is get
dynamically. This usage is common in selftest. How should we resolves this
problem?

Thanks
Hangbin