From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F6E8C43216 for ; Sat, 28 Aug 2021 05:20:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 231C160EBC for ; Sat, 28 Aug 2021 05:20:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233170AbhH1FV1 (ORCPT ); Sat, 28 Aug 2021 01:21:27 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:21500 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233117AbhH1FVX (ORCPT ); Sat, 28 Aug 2021 01:21:23 -0400 Received: from pps.filterd (m0148461.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 17S5EJhv027036 for ; Fri, 27 Aug 2021 22:20:33 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=npoIg0hH/PLsSOOKa3cr7jFeeSikgJuTg/witRzt/oE=; b=M3akIRCH7Ja6gdhaQDf/BNkFYvgOeIdk0JOalmsQhAlBkf06FLL86JoPIlcIaLNYP+tM DAPWKFGSrdrUh5TQCqA2E1R+NxYqg8GAaKptE1e2DrYomI1+FgjmSZtmET2K7TWH4e6Z nQlPhzv6hCeTPIkQQ16nLP/ZBEQ2ECeiifc= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 3aq0vv4ru6-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 27 Aug 2021 22:20:33 -0700 Received: from intmgw001.37.frc1.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:82::f) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Fri, 27 Aug 2021 22:20:31 -0700 Received: by devbig030.frc3.facebook.com (Postfix, from userid 158236) id 4AD475BF0E41; Fri, 27 Aug 2021 22:20:25 -0700 (PDT) From: Dave Marchevsky To: CC: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Yonghong Song , , Dave Marchevsky Subject: [PATCH v3 bpf-next 5/7] bpftool: only probe trace_vprintk feature in 'full' mode Date: Fri, 27 Aug 2021 22:20:04 -0700 Message-ID: <20210828052006.1313788-6-davemarchevsky@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210828052006.1313788-1-davemarchevsky@fb.com> References: <20210828052006.1313788-1-davemarchevsky@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-FB-Source: Intern X-Proofpoint-GUID: c57A1hrBRPZn7ffV6IE70cIBaftXcrq9 X-Proofpoint-ORIG-GUID: c57A1hrBRPZn7ffV6IE70cIBaftXcrq9 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.790 definitions=2021-08-28_01:2021-08-27,2021-08-28 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 suspectscore=0 phishscore=0 mlxscore=0 spamscore=0 adultscore=0 priorityscore=1501 impostorscore=0 mlxlogscore=999 lowpriorityscore=0 malwarescore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108280031 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Since commit 368cb0e7cdb5e ("bpftool: Make probes which emit dmesg warnings optional"), some helpers aren't probed by bpftool unless `full` arg is added to `bpftool feature probe`. bpf_trace_vprintk can emit dmesg warnings when probed, so include it. Signed-off-by: Dave Marchevsky --- tools/bpf/bpftool/feature.c | 1 + tools/testing/selftests/bpf/test_bpftool.py | 22 +++++++++------------ 2 files changed, 10 insertions(+), 13 deletions(-) diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c index 7f36385aa9e2..ade44577688e 100644 --- a/tools/bpf/bpftool/feature.c +++ b/tools/bpf/bpftool/feature.c @@ -624,6 +624,7 @@ probe_helpers_for_progtype(enum bpf_prog_type prog_ty= pe, bool supported_type, */ switch (id) { case BPF_FUNC_trace_printk: + case BPF_FUNC_trace_vprintk: case BPF_FUNC_probe_write_user: if (!full_mode) continue; diff --git a/tools/testing/selftests/bpf/test_bpftool.py b/tools/testing/= selftests/bpf/test_bpftool.py index 4fed2dc25c0a..1c2408ee1f5d 100644 --- a/tools/testing/selftests/bpf/test_bpftool.py +++ b/tools/testing/selftests/bpf/test_bpftool.py @@ -57,6 +57,11 @@ def default_iface(f): return f(*args, iface, **kwargs) return wrapper =20 +DMESG_EMITTING_HELPERS =3D [ + "bpf_probe_write_user", + "bpf_trace_printk", + "bpf_trace_vprintk", + ] =20 class TestBpftool(unittest.TestCase): @classmethod @@ -67,10 +72,7 @@ class TestBpftool(unittest.TestCase): =20 @default_iface def test_feature_dev_json(self, iface): - unexpected_helpers =3D [ - "bpf_probe_write_user", - "bpf_trace_printk", - ] + unexpected_helpers =3D DMESG_EMITTING_HELPERS expected_keys =3D [ "syscall_config", "program_types", @@ -94,10 +96,7 @@ class TestBpftool(unittest.TestCase): bpftool_json(["feature", "probe"]), bpftool_json(["feature"]), ] - unexpected_helpers =3D [ - "bpf_probe_write_user", - "bpf_trace_printk", - ] + unexpected_helpers =3D DMESG_EMITTING_HELPERS expected_keys =3D [ "syscall_config", "system_config", @@ -121,10 +120,7 @@ class TestBpftool(unittest.TestCase): bpftool_json(["feature", "probe", "kernel", "full"]), bpftool_json(["feature", "probe", "full"]), ] - expected_helpers =3D [ - "bpf_probe_write_user", - "bpf_trace_printk", - ] + expected_helpers =3D DMESG_EMITTING_HELPERS =20 for tc in test_cases: # Check if expected helpers are included at least once in an= y @@ -157,7 +153,7 @@ class TestBpftool(unittest.TestCase): not_full_set.add(helper) =20 self.assertCountEqual(full_set - not_full_set, - {"bpf_probe_write_user", "bpf_trace_prin= tk"}) + set(DMESG_EMITTING_HELPERS)) self.assertCountEqual(not_full_set - full_set, set()) =20 def test_feature_macros(self): --=20 2.30.2