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

[Petr Machata]

Hangbin Liu <liuhangbin@xxxxxxxxx> writes:

> On Thu, Jul 24, 2025 at 04:06:03AM +0000, Hangbin Liu wrote:
>> 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?
>
> OK, I just disabled this warning.
>
> # shellcheck disable=SC1091

I believe the point was only about using "." instead of "source". The
following should have fixed it:

. ${lib_dir}/bond_topo_lacp.sh

... or just use bash as the interpreter, I suspect lib.sh is not
actually POSIX clean.