From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DED717FD; Wed, 10 Jul 2024 02:58:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720580299; cv=none; b=nqU4Vpmfw2T561DKCUwxIqflz8thpGIFRnMG6MhSTX2CPT6YZQ2O4nkQrwJ6sV1MoYmrwQf2JpOKnfNzX6Ih8vQD2m1C+SU/sC2O8X+RfTPYCfiEFFrioDXop+qHIF5LNLd2krglPtkXRZ73idKT5LZro29zc7AfON6+eIo3tPQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720580299; c=relaxed/simple; bh=dBz5iXktR7UCcei/xRDCvBN/bZKb6h2c9sMMJDcS/Vk=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=uK4g7aR7LAuqCuAZTGWNYHQO6B1O4VPn9jjRf6cbgiB6VH8YlCbjoU10yNIlSDQwRsrNP4hziJARG5DKlfe65hmC4WhbqXmei6+/UTE1Rg5Vq4qXFtHpujwrqnKHmbI52I7WBVLpnRCbSw/iQG90DAs6/Bj5feztrfkFU1NkX1M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BN3tCSUM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BN3tCSUM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 216D3C3277B; Wed, 10 Jul 2024 02:58:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720580298; bh=dBz5iXktR7UCcei/xRDCvBN/bZKb6h2c9sMMJDcS/Vk=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=BN3tCSUMfXu29VTMfoqlqCerh0tYWb3D/38CIz7af1/cYa4uxuEDMbkCGykAz+O+n 4y7f0k0MQYQ0cqj8Mw96k+uHCh/+97gVYjtRQQllOOnh+33QJEQylVm0e4ExtBRIbO VBF35E86dmz2i5Pmpdnu9HqbBoSdI4UODBo20Tsr7yThAoD+BrTD8mGbkmNce/nPhp p6x7d6JWnFKRf/b3lB3ysA1z1XGRKpKgVIiL3K3RFCAEfMzxVP/SRJAgkoo2Zc04i3 bQd62F5Wp4x/k2AtQxiKihdqHQIT8gRAaBuqFjykhgkl1I75cqsP6NFxSPLA7j2dAn FMJcSOFozl8/A== Message-ID: Subject: Re: [PATCH bpf-next v2 4/6] selftests/bpf: Null checks for link in bpf_tcp_ca From: Geliang Tang To: Eduard Zingerman , Andrii Nakryiko , Mykola Lysenko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan Cc: Geliang Tang , bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Date: Wed, 10 Jul 2024 10:58:10 +0800 In-Reply-To: References: <06755f462ddb7bc9f734f105e18c1d77c03811cb.1720146231.git.tanggeliang@kylinos.cn> Autocrypt: addr=geliang@kernel.org; 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charset="UTF-8" User-Agent: Evolution 3.52.0-1build2 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Eduard, On Mon, 2024-07-08 at 12:42 -0700, Eduard Zingerman wrote: > On Fri, 2024-07-05 at 10:38 +0800, Geliang Tang wrote: > > [...] > > I think that this patch is an improvement independent of the patch- > set. > Please submit it separately. > > >  .../selftests/bpf/prog_tests/bpf_tcp_ca.c        | 16 > > ++++++++++++---- > > [...] > > > @@ -489,6 +494,7 @@ static void test_mixed_links(void) > >   ASSERT_ERR(err, "update_map"); > >   > >   bpf_link__destroy(link); > > +err: > > Nit: there are two links in this test, but ASSERT_OK_PTR is added > only >      for a single one. Also note that bpf_link__destroy(NULL) works >      just fine, so it is possible to initialize links as NULL and > make >      a jump to cleanup block w/o peeking exact position within that > block. Thanks for your review. I sent a set named "BPF selftests misc fixes" yesterday to address your comments. But reconsider it. I think here checking the first link (link_nl) is enough. We can keep the second link as it. I changed "BPF selftests misc fixes" as "Changes Requested". Thanks, -Geliang > > >   bpf_link__destroy(link_nl); > >   tcp_ca_update__destroy(skel); > >  } > > [...] >