From patchwork Thu Jul 25 10:35:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Ambardar X-Patchwork-Id: 13741740 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (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 1790E198E80; Thu, 25 Jul 2024 10:39:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721903963; cv=none; b=CknqxZy0IHBN8RFPba+Lj2uGjTBAgsIaqtOYQ+0kL00LFbTMIVvdv7RI71+tDWjcCa4VPi2G7I5CNUgjtOpemeP+VpABMOUSyew5d4a0FvUKH/LfTyj64kC+MLJ+nYRuZoCbpjSvgpUwT7ppJkPnM5jleqrvSxVbofgbrX5FbU4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721903963; c=relaxed/simple; bh=b2eopH9P05jws6B3FttawjClEaNYLSZjTY6eEAmx1IY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=p/XfDLkNGstZJUWZexlfFZYP+ZzvAIUFM4v4icnjIsYQQQu5zTDEUYTK46IWCEXeBaWorI26RdjRB7cSyKdfAmEND1YxRo0virTiicFvx2BuxJ5RBHIEIgCVgaU2zx//FNrDSDvIbPL0s9Sx6kowLsYxpDWkIxkGoTnHxG7/o5Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Iwf0swFr; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Iwf0swFr" Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-1fd640a6454so7096035ad.3; Thu, 25 Jul 2024 03:39:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1721903961; x=1722508761; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=aPj4UrGFYxLYkSohWfAYYA0VUXQB0pTvzNeY+UOm5uo=; b=Iwf0swFrInIzC1KLglwfm8fvdeEv553HT4OGyWs/6Lkd48VUiu7sRQKqud8a1UhYXy +1KFON+sxKD5VwKpO+TD3FYkxUMjO13/NvQ2YjJIRJ4H56/B4OVv9A6kZsIBzQZ3AtUq iX/8ZfruqBDv1ecULtiMGxGRg39ontQvjPE0GRyD7ENHi6tFriwDg/rss1/3odQJ4fqn ImOf9GDYnO7PIRnQcmlMy/tzXY+ZRYVvzpfRlBnlgNWy8F48rMebp3o1LqtreKjRbd6N 4csEuCk2ilJn1uWCaaAHiuTPdHouuzN4V8uTOacU6gUeXewqTpb2WDTxPjri91Jm4lNs +aMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721903961; x=1722508761; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=aPj4UrGFYxLYkSohWfAYYA0VUXQB0pTvzNeY+UOm5uo=; b=tlaZ5kYbbROmVOqQzQoXYMHd8kI9uc3/AUYT+aHFMUqDlm78HxVPxrzHYELtGOkyEo FwDjQrXog/NHAZJRdN3Zkp5osH14PP50kpFwLEqZsQkum6eyHKGUb7+XlBZI/46TQoWj SRkxSxWI+CoRzN4Dq4a+3kXW/7WLqJBB0otUjYEuJJ3PewokgX4WVP2R+kdjvUc+qFxT K6/+Qq+Ld7Mf7Vg+577VQHvpczFbELPeaQBJx64+hZLk/V7gRYwwQ+eT3FdlFuq7SBKM 3nQxLjrz7PU6oCpadiSnxzxk3oeDw1AB9qQLhB8B6T9DvhK3gl+7FLt8LIiUNkkNv4YN Ib/g== X-Forwarded-Encrypted: i=1; AJvYcCXeVKOhDjAgXQ21b+LrWhGXLZJQc56BNRD35Y+y7wafVW5J397XfUCOOgXy6+aX4wKwnInnOXAJGGwU6uJ9VEWqDlxunSBKy2Pv2kCRlac9l2i52SHe/Ar60L36MZ0843Q7FIXDVXp7 X-Gm-Message-State: AOJu0YxMCQBP/0rxpX5Zoluj1DIPVif5jbIys7emxZACss1wiUXjYdQD Jxx8d979B+NMgRchEx7b5gCuEe1IYawpGvpHhgsLezKxsvIXi98A0ckeMDC2 X-Google-Smtp-Source: AGHT+IFomPSqd48Y8JT/fht4rfbWgYahdQgdWbH5Bbu1k5axGHfLIFiOdBetRUJKvS3XBZ/mJjp6Lg== X-Received: by 2002:a17:903:41c8:b0:1fc:6a81:c5a1 with SMTP id d9443c01a7336-1fed35360demr29712495ad.12.1721903961235; Thu, 25 Jul 2024 03:39:21 -0700 (PDT) Received: from localhost.localdomain (69-172-146-21.cable.teksavvy.com. [69.172.146.21]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fed7f78491sm10991075ad.244.2024.07.25.03.39.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jul 2024 03:39:21 -0700 (PDT) From: Tony Ambardar X-Google-Original-From: Tony Ambardar To: bpf@vger.kernel.org Cc: Tony Ambardar , linux-kselftest@vger.kernel.org, netdev@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Mykola Lysenko , Shuah Khan , =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , Magnus Karlsson , Maciej Fijalkowski , Jonathan Lemon , "David S. Miller" , Yan Zhai Subject: [PATCH bpf-next v1 3/8] selftests/bpf: Fix error compiling test_lru_map.c Date: Thu, 25 Jul 2024 03:35:55 -0700 Message-Id: <13890669483d34ef1c89a3c79b726f6dba442bf9.1721903630.git.tony.ambardar@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Tony Ambardar Although the post-increment in macro 'CPU_SET(next++, &cpuset)' seems safe, the sequencing can raise compile errors, so move the increment outside the macro. This avoids an error seen using gcc 12.3.0 for mips64el/musl-libc: In file included from test_lru_map.c:11: test_lru_map.c: In function 'sched_next_online': test_lru_map.c:129:29: error: operation on 'next' may be undefined [-Werror=sequence-point] 129 | CPU_SET(next++, &cpuset); | ^ cc1: all warnings being treated as errors Fixes: 3fbfadce6012 ("bpf: Fix test_lru_sanity5() in test_lru_map.c") Signed-off-by: Tony Ambardar --- tools/testing/selftests/bpf/test_lru_map.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/test_lru_map.c b/tools/testing/selftests/bpf/test_lru_map.c index 4d0650cfb5cd..fda7589c5023 100644 --- a/tools/testing/selftests/bpf/test_lru_map.c +++ b/tools/testing/selftests/bpf/test_lru_map.c @@ -126,7 +126,8 @@ static int sched_next_online(int pid, int *next_to_try) while (next < nr_cpus) { CPU_ZERO(&cpuset); - CPU_SET(next++, &cpuset); + CPU_SET(next, &cpuset); + next++; if (!sched_setaffinity(pid, sizeof(cpuset), &cpuset)) { ret = 0; break;