From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.126.com (m16.mail.126.com [220.197.31.9]) (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 80A923845BB; Tue, 3 Mar 2026 07:24:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772522674; cv=none; b=hdOYvAawUJkBAq2OfmBeL6MqWR+Fxrdvv2l7s5vkV5JxxEFUuaQJ9uDNQgMM8qcoh7SsB82pw2rOQfFnGoMAuN/H2w0ioeJQoAa35IMnCWdIb7CIgfbsQNCAIcC1s/VuqTKATxhm6j/UAuJDfvuZAAAJaN2xl8wPn69bHmqkR9A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772522674; c=relaxed/simple; bh=VGYfChW+hftxyiHbvyTWUAIFNt4cxQtpYaguIbM90pg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U0e4lCqxGyIDZwoIFZbMe9gwrefX4/aZSRiy4RKbQsmDDTFSu/uX7dHa4jIwjQnYZ6pM3JGpCKsjp62UhS4a5t811hO6eSH7v9pfSZqroSxkwVDsYKUKF34u33DkQiQ/OVD5UwVdVzs4Ew5cZuQ6/r9N0tZyIEE++d3IJphqxhE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=126.com; spf=pass smtp.mailfrom=126.com; dkim=pass (1024-bit key) header.d=126.com header.i=@126.com header.b=fQxj334s; arc=none smtp.client-ip=220.197.31.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=126.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=126.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=126.com header.i=@126.com header.b="fQxj334s" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=jN sX6y3/noWI4atTR0sE6jHvaCyPAhxU+KSQMt55M44=; b=fQxj334sUBe23Xt4Iy mSpCe8IOhpDdpfEc3gN0r2sr42IudD+J1E1fSej/a5DYmJY0S7q5kbjR+jP9x6+n ycYh1U6jF2RBp+bPyar7jl+Xdz/hnif88Q8XqPyfkqRMmZcsWEIq09tjTZxrGEpY 6Kber2liaTLwhDzq5BqK6lbfc= Received: from localhost.localdomain (unknown []) by gzsmtp5 (Coremail) with SMTP id QCkvCgDnT3h6jKZpVDeAAw--.53445S3; Tue, 03 Mar 2026 15:23:39 +0800 (CST) From: Zhao Mengmeng To: tj@kernel.org, void@manifault.com, arighi@nvidia.com, changwoo@igalia.com, shuah@kernel.org, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, morbo@google.com, justinstitt@google.com Cc: sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, bpf@vger.kernel.org, llvm@lists.linux.dev, zhaomengmeng@kylinos.cn Subject: [PATCH 1/3] tools/sched_ext: Add -fms-extensions to bpf build flags Date: Tue, 3 Mar 2026 15:23:15 +0800 Message-ID: <20260303072317.76035-2-zhaomzhao@126.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260303072317.76035-1-zhaomzhao@126.com> References: <20260303072317.76035-1-zhaomzhao@126.com> 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-CM-TRANSID:QCkvCgDnT3h6jKZpVDeAAw--.53445S3 X-Coremail-Antispam: 1Uf129KBjvJXoW7Cr18Kr1DGw1fuw4DKrykKrg_yoW8Xr17pa 9I9rW8GF47tFy8Gws7JFW3trWY9ws2gw40qryqqwn0yF97t3ZFq3s7tF43Ar17tw4kCry7 ua4xKasxWw12v3DanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UE4E_UUUUU= X-CM-SenderInfo: 52kd0zp2kd0qqrswhudrp/xtbBqxtFvGmmjHtQHwAA3+ From: Zhao Mengmeng Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings due to MS extensions") The kernel is now built with -fms-extensions, therefore generated vmlinux.h contains types like: struct aes_key { struct aes_enckey; union aes_invkey_arch inv_k; }; struct ns_common { ... union { struct ns_tree; struct callback_head ns_rcu; }; }; Which raise warning like below when building scx scheduler: tools/sched_ext/build/include/vmlinux.h:50533:3: warning: declaration does not declare anything [-Wmissing-declarations] 50533 | struct ns_tree; | ^ Fix it by using -fms-extensions and -Wno-microsoft-anon-tag flags to build bpf programs that #include "vmlinux.h" Signed-off-by: Zhao Mengmeng --- tools/sched_ext/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/sched_ext/Makefile b/tools/sched_ext/Makefile index 47ad7444677e..21554f089692 100644 --- a/tools/sched_ext/Makefile +++ b/tools/sched_ext/Makefile @@ -122,6 +122,8 @@ BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) \ -I../../include \ $(call get_sys_includes,$(CLANG)) \ -Wall -Wno-compare-distinct-pointer-types \ + -Wno-microsoft-anon-tag \ + -fms-extensions \ -O2 -mcpu=v3 # sort removes libbpf duplicates when not cross-building -- 2.43.0