netdev - Re: [PATCH] selftests/net/forwarding: teamd command not found

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Message-ID: <s564xh7c2xtmjz2cfwqq3zl4krjxiy4hqjeuvjpa6uhabcgvcb@k662t5irg2yi>
Date: Fri, 10 Jan 2025 15:35:23 +0100
From: Alessandro Zanni <alessandro.zanni87@...il.com>
To: Hangbin Liu <liuhangbin@...il.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, 
	pabeni@...hat.com, shuah@...nel.org, netdev@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests/net/forwarding: teamd command not found

On Fri, Jan 10, 2025 at 04:09:07AM +0000, Hangbin Liu wrote:
> On Fri, Jan 10, 2025 at 01:07:44AM +0100, Alessandro Zanni wrote:
> > Running "make kselftest TARGETS=net/forwarding" results in several
> > occurrences of the same error:
> >  ./lib.sh: line 787: teamd: command not found
> > 
> > Since many tests depends on teamd, this fix stops the tests if the
> > teamd command is not installed.
> > 
> > Signed-off-by: Alessandro Zanni <alessandro.zanni87@...il.com>
> > ---
> >  tools/testing/selftests/net/forwarding/lib.sh | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
> > index 7337f398f9cc..a6a74a4be4bf 100644
> > --- a/tools/testing/selftests/net/forwarding/lib.sh
> > +++ b/tools/testing/selftests/net/forwarding/lib.sh
> > @@ -784,6 +784,7 @@ team_destroy()
> >  {
> >  	local if_name=$1; shift
> >  
> > +	require_command $TEAMD
> >  	$TEAMD -t $if_name -k
> >  }
> 
> I saw team_create() has `require_command $TEAMD`. Is some test called
> team_destroy() before team_create()?

Actually, the errors seem to raise in the "cleanup()" method.

So, first, during the test preparation the "team_create()" method is called
and checks if teamd is installed. 
When it fails and skips the test, the "cleanup()" method calls
the "team_destroy()" that raises the errors.