From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-172.mta0.migadu.com (out-172.mta0.migadu.com [91.218.175.172]) (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 E3474265CAC for ; Tue, 22 Jul 2025 15:35:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753198520; cv=none; b=jPyVFJbcLhY+FKWNaRHVv9wIQxLngsIXIwmjLP+ZTuuydk1K6rSZ21I2YusYYrsEd+j/vusS6rQXtwSB1o5QPrPOsDkvEm8y4tjrBgiUHZ/qmN9U0b/sSgYlOuu7vHhLSi0o45xR3PkWsXY4RMvThT+stoKU20MopSmUzbS4Clg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753198520; c=relaxed/simple; bh=TXC0jzWUxyeA40ayoyWkerpcYh7WExKkbc+qnS5ks0Q=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=m3ZAObsAfOj4EuVCLhmfUfWmIXstpUIsGTNF0LLaWIf/nOo1T/Bh4WzDp1eeAq9B2lvkQZOJn2EnhAXAq9dHVDyOZ7imdGGBMSagojnTEwgzKmPlOlQwZeDOxm6b/I3NTelE6eT7gZjzWpGpfzYkx/LWNdGVNVZtimMy4FDTLX8= 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=OgNsbpjc; arc=none smtp.client-ip=91.218.175.172 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="OgNsbpjc" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1753198515; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Xh4LPphC6fvNyzC3xKXkuWTCa65+atiUsQY/kPj004Y=; b=OgNsbpjc+rLtNneZOANMOjCUzxjrdi/elcIuf9obgzsfjJkqkOQtbgZRZCKqLo4uSOiCsx PrV9mGaNxcAqcpoZ3DLFzsHlBLrjqLX49ScN70TQ8S3Vm+jrdAybNF/1WqKK0AdIdQA6i+ qWtAqNFg0tarlHFpJUNq+5TUJ9CpYSM= From: KaFai Wan To: ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, mykolal@fb.com, shuah@kernel.org, kafai.wan@linux.dev, laoar.shao@gmail.com, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, leon.hwang@linux.dev Subject: [PATCH bpf-next v3 0/4] bpf: Show precise rejected function when attaching to __noreturn and deny list functions Date: Tue, 22 Jul 2025 23:34:30 +0800 Message-ID: <20250722153434.20571-1-kafai.wan@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Show precise rejected function when attaching fexit/fmod_ret to __noreturn functions. Add log for attaching tracing programs to functions in deny list. Add selftest for attaching tracing programs to functions in deny list. Migrate fexit_noreturns case into tracing_failure test suite. changes: v3: - add tracing_deny case into existing files (Alexei) - migrate fexit_noreturns into tracing_failure - change SOB v2: - change verifier log message (Alexei) - add missing Suggested-by https://lore.kernel.org/bpf/20250714120408.1627128-1-mannkafai@gmail.com/ v1: https://lore.kernel.org/all/20250710162717.3808020-1-mannkafai@gmail.com/ --- KaFai Wan (4): bpf: Show precise rejected function when attaching fexit/fmod_ret to __noreturn functions bpf: Add log for attaching tracing programs to functions in deny list selftests/bpf: Add selftest for attaching tracing programs to functions in deny list selftests/bpf: Migrate fexit_noreturns case into tracing_failure test suite kernel/bpf/verifier.c | 5 +- .../bpf/prog_tests/fexit_noreturns.c | 9 ---- .../bpf/prog_tests/tracing_failure.c | 52 +++++++++++++++++++ .../selftests/bpf/progs/fexit_noreturns.c | 15 ------ .../selftests/bpf/progs/tracing_failure.c | 12 +++++ 5 files changed, 68 insertions(+), 25 deletions(-) delete mode 100644 tools/testing/selftests/bpf/prog_tests/fexit_noreturns.c delete mode 100644 tools/testing/selftests/bpf/progs/fexit_noreturns.c -- 2.43.0