Re: [PATCH v3 5/5] lib/test_sysctl: support testing of sysctl. boot parameter

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On Wed, May 13, 2020 at 7:15 AM Luis Chamberlain <mcgrof@xxxxxxxxxx> wrote:
>
> On Wed, May 13, 2020 at 10:58:16AM +0200, Vlastimil Babka wrote:
> > On 5/11/20 8:31 PM, Luis Chamberlain wrote:
> > > On Mon, May 11, 2020 at 01:05:22PM +0200, Vlastimil Babka wrote:
> > >> ----8<----
> > >> From a999e993a89e521b152bbd4b1466f69e62879c30 Mon Sep 17 00:00:00 2001
> > >> From: Vlastimil Babka <vbabka@xxxxxxx>
> > >> Date: Mon, 11 May 2020 12:59:49 +0200
> > >> Subject: [PATCH] lib/test_sysctl: support testing of sysctl. boot parameter -
> > >>  fix
> > >>
> > >> Skip the new test if boot_int sysctl is not present, otherwise, per Luis,
> > >> "This would fail if someone uses this script to test an older kernel, and
> > >> the scripts in selftests are supposed to work with older kernels."
> > >>
> > >> Suggested-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
> > >> Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
> > >> ---
> > >>  tools/testing/selftests/sysctl/sysctl.sh | 5 +++++
> > >>  1 file changed, 5 insertions(+)
> > >>
> > >> diff --git a/tools/testing/selftests/sysctl/sysctl.sh b/tools/testing/selftests/sysctl/sysctl.sh
> > >> index ef6417b8067b..148704f465b5 100755
> > >> --- a/tools/testing/selftests/sysctl/sysctl.sh
> > >> +++ b/tools/testing/selftests/sysctl/sysctl.sh
> > >> @@ -756,6 +756,11 @@ sysctl_test_0006()
> > >
> > > You want to:
> > >
> > >
> > > # Kselftest framework requirement - SKIP code is 4.
> > > ksft_skip=4
> > >
> > >>  sysctl_test_0007()
> > >>  {
> > >>    TARGET="${SYSCTL}/boot_int"
> > >> +  if [ ! -f $TARGET ]; then
> > >> +          echo "Skipping test for $TARGET as it is not present ..."
> > >> +          return 0
> > >> +  fi
> > >
> > > And return 4 instead.
> >
> > If I return it from the function, nobody will care, AFAICS. If I 'exit
> > $ksft_skip', is that correct if it's just a single test out of 7?
>
> yes please do that.

Ah but once we add test_0008() it may be supported.. so I think return
would be OK



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