From: Krzesimir Nowak <krzesimir@kinvolk.io>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: "open list" <linux-kernel@vger.kernel.org>,
"Alban Crequy" <alban@kinvolk.io>,
"Iago López Galeiras" <iago@kinvolk.io>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Martin KaFai Lau" <kafai@fb.com>,
"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <jakub.kicinski@netronome.com>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
"Stanislav Fomichev" <sdf@google.com>,
Networking <netdev@vger.kernel.org>, bpf <bpf@vger.kernel.org>,
xdp-newbies@vger.kernel.org
Subject: Re: [bpf-next v3 04/12] selftests/bpf: Use bpf_prog_test_run_xattr
Date: Thu, 11 Jul 2019 14:07:24 +0200 [thread overview]
Message-ID: <CAGGp+cGUYbdEeHJxVCk0VZvOMSoR6Fz5aUJD0Ye71w5dxETXMA@mail.gmail.com> (raw)
In-Reply-To: <CAEf4BzZoOw=1B8vV53iAxz8LDULOPVF-he4C_usoUQSdXU+oSg@mail.gmail.com>
On Thu, Jul 11, 2019 at 2:03 AM Andrii Nakryiko
<andrii.nakryiko@gmail.com> wrote:
>
> On Mon, Jul 8, 2019 at 3:43 PM Krzesimir Nowak <krzesimir@kinvolk.io> wrote:
> >
> > The bpf_prog_test_run_xattr function gives more options to set up a
> > test run of a BPF program than the bpf_prog_test_run function.
> >
> > We will need this extra flexibility to pass ctx data later.
> >
> > Signed-off-by: Krzesimir Nowak <krzesimir@kinvolk.io>
> > ---
>
> lgtm, with some nits below
>
> Acked-by: Andrii Nakryiko <andriin@fb.com>
>
> > tools/testing/selftests/bpf/test_verifier.c | 16 +++++++++++-----
> > 1 file changed, 11 insertions(+), 5 deletions(-)
> >
> > diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
> > index c7541f572932..1640ba9f12c1 100644
> > --- a/tools/testing/selftests/bpf/test_verifier.c
> > +++ b/tools/testing/selftests/bpf/test_verifier.c
> > @@ -822,14 +822,20 @@ static int do_prog_test_run(int fd_prog, bool unpriv, uint32_t expected_val,
> > {
> > __u8 tmp[TEST_DATA_LEN << 2];
> > __u32 size_tmp = sizeof(tmp);
>
> nit: this is now is not needed as a separate local variable, inline?
I think I'm using this variable in a followup commit, but I'll look closely.
>
> > - uint32_t retval;
> > int saved_errno;
> > int err;
> > + struct bpf_prog_test_run_attr attr = {
> > + .prog_fd = fd_prog,
> > + .repeat = 1,
> > + .data_in = data,
> > + .data_size_in = size_data,
> > + .data_out = tmp,
> > + .data_size_out = size_tmp,
> > + };
> >
> > if (unpriv)
> > set_admin(true);
> > - err = bpf_prog_test_run(fd_prog, 1, data, size_data,
> > - tmp, &size_tmp, &retval, NULL);
> > + err = bpf_prog_test_run_xattr(&attr);
> > saved_errno = errno;
> > if (unpriv)
> > set_admin(false);
> > @@ -846,9 +852,9 @@ static int do_prog_test_run(int fd_prog, bool unpriv, uint32_t expected_val,
> > return err;
> > }
> > }
> > - if (retval != expected_val &&
> > + if (attr.retval != expected_val &&
> > expected_val != POINTER_VALUE) {
>
> this if condition now fits one line, can you please combine? thanks!
Sure.
>
> > - printf("FAIL retval %d != %d ", retval, expected_val);
> > + printf("FAIL retval %d != %d ", attr.retval, expected_val);
> > return 1;
> > }
> >
> > --
> > 2.20.1
> >
--
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next prev parent reply other threads:[~2019-07-11 12:07 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 16:31 [bpf-next v3 00/12] Test the 32bit narrow reads Krzesimir Nowak
2019-07-08 16:31 ` [bpf-next v3 01/12] selftests/bpf: Print a message when tester could not run a program Krzesimir Nowak
2019-07-10 23:44 ` Andrii Nakryiko
2019-07-11 11:36 ` Krzesimir Nowak
2019-07-12 0:10 ` Andrii Nakryiko
2019-07-08 16:31 ` [bpf-next v3 02/12] selftests/bpf: Avoid a clobbering of errno Krzesimir Nowak
2019-07-10 23:51 ` Andrii Nakryiko
2019-07-11 12:04 ` Krzesimir Nowak
2019-07-12 0:59 ` Andrii Nakryiko
2019-07-12 17:31 ` Krzesimir Nowak
2019-07-08 16:31 ` [bpf-next v3 03/12] selftests/bpf: Avoid another case of errno clobbering Krzesimir Nowak
2019-07-10 23:57 ` Andrii Nakryiko
2019-07-11 12:05 ` Krzesimir Nowak
2019-07-08 16:31 ` [bpf-next v3 04/12] selftests/bpf: Use bpf_prog_test_run_xattr Krzesimir Nowak
2019-07-11 0:03 ` Andrii Nakryiko
2019-07-11 12:07 ` Krzesimir Nowak [this message]
2019-07-08 16:31 ` [bpf-next v3 05/12] selftests/bpf: Allow passing more information to BPF prog test run Krzesimir Nowak
2019-07-11 1:17 ` Andrii Nakryiko
2019-07-11 12:17 ` Krzesimir Nowak
2019-07-08 16:31 ` [bpf-next v3 06/12] selftests/bpf: Make sure that preexisting tests for perf event work Krzesimir Nowak
2019-07-08 16:31 ` [bpf-next v3 07/12] tools headers: Adopt compiletime_assert from kernel sources Krzesimir Nowak
2019-07-12 0:19 ` Andrii Nakryiko
2019-07-08 16:31 ` [bpf-next v3 08/12] tools headers: Sync struct bpf_perf_event_data Krzesimir Nowak
2019-07-12 0:21 ` Andrii Nakryiko
2019-07-08 16:31 ` [bpf-next v3 09/12] bpf: Split out some helper functions Krzesimir Nowak
2019-07-08 16:40 ` Krzesimir Nowak
2019-07-11 20:25 ` Stanislav Fomichev
2019-07-08 16:31 ` [bpf-next v3 10/12] bpf: Implement bpf_prog_test_run for perf event programs Krzesimir Nowak
2019-07-11 20:30 ` Stanislav Fomichev
2019-07-08 16:31 ` [bpf-next v3 11/12] selftests/bpf: Add tests for bpf_prog_test_run for perf events progs Krzesimir Nowak
2019-07-12 0:37 ` Andrii Nakryiko
2019-07-12 17:37 ` Krzesimir Nowak
2019-07-12 17:49 ` Andrii Nakryiko
2019-07-08 16:31 ` [bpf-next v3 12/12] selftests/bpf: Test correctness of narrow 32bit read on 64bit field Krzesimir Nowak
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