From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-140.mta0.migadu.com [91.218.175.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D9FE54F68C7 for ; Wed, 14 Oct 2026 11:32:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.140 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791977572; cv=none; b=PfHVdQhHbqs6r0URNE490JfKDlN3jUMEt36S8jbhgnAn1GT76BULhwuPpLTkS/1cZH0Oevu+q1oxlTc9OO+WxTTiZ1JAviuuxlFjhN/UDzp2VdFZ5yHUHGouxFlukhUrxuNvmcSqS+Vb/VcApagnYXsaGBViLFoHJp2MK9ToT7s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791977572; c=relaxed/simple; bh=rUpy9MyFtwRHnMTDPYO12dfwaXHBB/auGnEe6vnVHzg=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QpOniNNUh+vZHnTWTs662x74GCfiI3QB1WCoVKqxoDdEkeub/GJYmP8tD0YKApcO/zJF0UvKkOLhoWxSe04oX+O2eZm+XPqKSxkbGd21jv5b9CiMdIcwyFzaCqqfJJgO0AGOfvxSycbgnD/Ud6MThRI3PxFQrmWZGLjC4NjmS9k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=P9FYMKVL; arc=none smtp.client-ip=91.218.175.140 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="P9FYMKVL" X-Envelope-To: llvm@lists.linux.dev DKIM-Signature: a=rsa-sha256; bh=rUpy9MyFtwRHnMTDPYO12dfwaXHBB/auGnEe6vnVHzg=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1791977567; v=1; x=1792582367; b=P9FYMKVLLALjWOrxUT4bKbUD6OoiP/feWGc2526J9KlnuKlMvFmWE4d//x6TEbrNgLt5xHga p2OJe62g0O/Q5+IIi1+TmjbfVbmbYpg/gvzthgx0AIzDjSHnePb78s8QbRBnNCmyTcaXpTI0fOC 2Cvasuj+a+iRnZjMZeekYn1U= X-Envelope-To: llvm@lists.linux.dev Received: by mta12.migadu.com with ESMTPS id a4a3fb094b9cd429; Wed, 14 Oct 2026 11:32:46 +0000 X-Mizu-Trace-ID: a4a3fb094b9cd429 X-Migadu-Flow: FLOW_OUT From: KaFai Wan To: Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Martin KaFai Lau , Song Liu , Yonghong Song , Jiri Olsa , Emil Tsalapatis , Ihor Solodrai , Shuah Khan , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Donggeun Yoo , Leon Hwang , KaFai Wan , Menglong Dong , Mykyta Yatsenko , Feng Jiang , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Puranjay Mohan , Vineet Gupta , Mykola Lysenko , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH bpf-next v2 7/7] selftests/bpf: Skip compare_text subtest when stdout is not saved Date: Wed, 14 Oct 2026 19:30:43 +0800 Message-ID: <20261014113043.640435-8-kafai.wan@linux.dev> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261014113043.640435-1-kafai.wan@linux.dev> References: <20261014113043.640435-1-kafai.wan@linux.dev> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit stdio_hijack_init() does not set subtest_state->stdout_saved when running with -v in non-parallel mode, since output goes straight to stdout. In that case subtest_state->log_buf is left NULL, so the compare_text_mismatch subtest crashes when inspecting it. Skip it when stdout was not saved. Fixes: bd71904697c6 ("selftests/bpf: Add compare_text_to_expected() helper") Signed-off-by: KaFai Wan --- .../bpf/prog_tests/prog_tests_framework.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c b/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c index b4cd7c7ff4391..ddb6cdc1579f1 100644 --- a/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c +++ b/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c @@ -203,14 +203,18 @@ void test_prog_tests_framework_compare_text(void) } if (test__start_subtest("compare_text_mismatch")) { - err = compare_text_to_expected("line two\n", "line one\n"); - fflush(stdout); + if (!env.subtest_state->stdout_saved) { + test__skip(); + } else { + err = compare_text_to_expected("line two\n", "line one\n"); + fflush(stdout); - ASSERT_EQ(err, -1, "mismatch_rc"); - ASSERT_HAS_SUBSTR(env.subtest_state->log_buf, "-line one", - "diff_has_expected"); - ASSERT_HAS_SUBSTR(env.subtest_state->log_buf, "+line two", - "diff_has_actual"); + ASSERT_EQ(err, -1, "mismatch_rc"); + ASSERT_HAS_SUBSTR(env.subtest_state->log_buf, "-line one", + "diff_has_expected"); + ASSERT_HAS_SUBSTR(env.subtest_state->log_buf, "+line two", + "diff_has_actual"); + } test__end_subtest(); } } -- 2.43.0