From nobody Fri Oct 3 18:01:58 2025 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 565B11A3166; Wed, 27 Aug 2025 03:16:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756264593; cv=none; b=H/5Y8ncXOxyh1X2EYbGcT8+ks7jzN1vMT9cBfZ1oxc5Vh0DEBWp+TJfmceM8u0WEDMQUwTGkmoZbcjcsXxtBW60xcQlPZrwD8GyhXsZBmHPmSuMZHleoDmrdJ8G5MFOPUR/AlRO72gWqM5Y36MNjwKuhEoiYnoVme3hXL2qIfbM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756264593; c=relaxed/simple; bh=Qs2OM8u+Lsz6MOPYflBgcuyoauChwiyNm0Qg9Fp8l+Q=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=jIIkQgwwIw9UikIa7Q1fSZx8yZaleYC4oNQp8NDO4m3kCxgS0Srq5H7ygjZGKtQqTuvg6gBb8n1sGaRueVdQnYTtlGSfVFdI8mwImcMe3VOW8VpWlbas1cg4FXSnQT8jZ078Td9Ikm5PdYS9IltivJYsf/9CWfJ0OEf7LSkBmWw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=NFc7s06I; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="NFc7s06I" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=J0 iCFAWZwK2LvypLJsD3Kz9xYwE43hjGdHVixQJu+A4=; b=NFc7s06IbOvdJXwOCv qcfR255RbqM4W4cadxZZwdHdZ1419RFAnD74XK1SUCCP8tlG+HwmpDd/LDy4MG7L U6qlphAcKfBFMvoIOpD2usNjFGhMRJt4RDO1SGmjINMC0MvXmZIEXBisTdfSjZRt 1zQEyW/jDcwgtB6y/P5ZKGLfw= Received: from localhost.localdomain (unknown []) by gzga-smtp-mtada-g1-0 (Coremail) with SMTP id _____wD3F+RdeK5ocMYdEw--.56776S2; Wed, 27 Aug 2025 11:15:42 +0800 (CST) From: Feng Yang 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 Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH bpf-next] selftests/bpf: Fix the invalid operand for instruction issue Date: Wed, 27 Aug 2025 11:15:40 +0800 Message-Id: <20250827031540.461017-1-yangfeng59949@163.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wD3F+RdeK5ocMYdEw--.56776S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7tw18tr4UZFW5tF4kuFyUZFb_yoW8Gry7pw 18X3s8tFyS9r1UX3W7Jr4UWF1rWFsaqr48Ar40yr9rAF98GF97Jr1xKFyYgr93Xr4furW3 Zrsrtw43CF4kAaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UKzuZUUUUU= X-CM-SenderInfo: p1dqww5hqjkmqzuzqiywtou0bp/1tbiYwO2eGiudCWPIwAAsV Content-Type: text/plain; charset="utf-8" From: Feng Yang The following issue occurs when compiling with clang version 17.0.6, but not with version 18.1.8. Add a version restriction to fix this problem. progs/compute_live_registers.c:251:3: error: invalid operand for instruction 251 | "r0 =3D 1;" | ^ :1:22: note: instantiated into assembly here 1 | r0 =3D 1;r2 =3D 2;if r1 & 0x7 goto +1;exit;r0 =3D r2;exit; | ^ 1 error generated. Fixes: 4a4b84ba9e453 ("selftests/bpf: verify jset handling in CFG computati= on") Signed-off-by: Feng Yang --- tools/testing/selftests/bpf/progs/compute_live_registers.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/compute_live_registers.c b/t= ools/testing/selftests/bpf/progs/compute_live_registers.c index 6884ab99a421..56aec43f206f 100644 --- a/tools/testing/selftests/bpf/progs/compute_live_registers.c +++ b/tools/testing/selftests/bpf/progs/compute_live_registers.c @@ -240,6 +240,7 @@ __naked void if2(void) ::: __clobber_all); } =20 +#if __clang_major__ >=3D 18 /* Verifier misses that r2 is alive if jset is not handled properly */ SEC("socket") __log_level(2) @@ -255,6 +256,7 @@ __naked void if3_jset_bug(void) "exit;" ::: __clobber_all); } +#endif =20 SEC("socket") __log_level(2) --=20 2.43.0