From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) (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 4B19A19D8BC; Tue, 1 Jul 2025 01:12:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751332350; cv=none; b=QqKhXQOe6k/x/Kt95Q+BVMArhoZw6ak6Rvu9p2nrBvBDlgayUM7zviy3Attm29nWwDxNSX3SrfcVVODzvEzSUePeJc1OhXrEjtn2uBimTbwTisnjKrpjMXFu/uUw3fYFojAl+qMVpJ87tZZETwx5A4DE0xqsNXF0aeoSBvyUsFY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751332350; c=relaxed/simple; bh=dHRNNSENZILB/RsESwGc4hB80PCAslDtv9owC5VxRRw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Z/C4TKPrsdVv93lXu2uGUGsQAE66afrnh4lv+lL6k0GMZ47r0IULkR2avyHmmHc6vHwFGYZXbBeZJxZYzY50ijA1OCXNBlTSfKaSQbD8HxhE2yuMHABxdUa90vRZxAIkA9QDTIP8jMJHDesMUkB2oSpN1VzbFwgccItBcUmkf8U= 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=l4j7p5G5; arc=none smtp.client-ip=209.85.214.176 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="l4j7p5G5" Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-236377f00a1so50298735ad.3; Mon, 30 Jun 2025 18:12:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1751332348; x=1751937148; 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=AB192qEi92T78puw7fWM6TcIgYAnqo1aJRWlEYSOERE=; b=l4j7p5G5F6P4UObZ5gUb+d1+S7G/2D5xBptS5Vm1Cq899sL9XpFnLCFqpuochhmJ2m 6ccdCRtqUoL2yBenbiDvY64Zlb3HowIPl6bTPplgWJydOkpCEfD9Xzm4uRkQvhm+5fOy PzsC2o1aCJgqhrjAyt1lOKKo66zeOBxrYbxP1kmRtS8+uvocyzqLDfT8irEv1WH5Y3X4 aRCF+pumvvnr/aO4Wt2tjBx4e2eSwci/U+mOJEZPWQGWXmtSz5waoJxpzIfZITeQ8JTk HldZ+qAezzC6Z37GAsWvJqzQEbs6vHZsgwhtptOf1D4U/v2+/vR4sD9w5jeQU4yVxiTC 6eWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751332348; x=1751937148; 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=AB192qEi92T78puw7fWM6TcIgYAnqo1aJRWlEYSOERE=; b=xC9iU4gh2pgQpZreqLeld4u91XVxQoyeWITML14aaqjztws2gdrBgchR3g4vestXhs T3Q5Nt3sm52kgKGanNCZ0hFi1NBYABhkde7GwBX6fyGfrw2TJWwNFlUDGV9fseh2kV/G ymowIvKyR6QLqa5abB2SSdX1zcvPKNetmDLWgmhTNQzz66XJv2eQAk7/kxoAEbyNirO7 1A7mgyS7woe65xkG4J1Q8zkP3rvw5QWZ0RmHNrDbEQpU3w4xvKiTaLHnRDxNNSI/IXDD KBd0amg3Jdzw0wU7+YaZpIK5xQx5t0q+VCQwQjRioJjVCl9zlCDQnQJqMJZNa7OooWuG I6vA== X-Gm-Message-State: AOJu0Yxlg4lGAyWhE9h6UKtHFDfvBZemAzOcm85hdlX65zwwfg+VSaUM wKeiweBt+zedDHKHF6WnNFn6oMWvSdS7B1o3Kc2S5Mzl/+1VnrU3Z612FdBrMQ== X-Gm-Gg: ASbGncvOb7KXXrvjJODi5EwT43DUYQSs+ptfcr7h7COcaeWRG+WSTKFwPzt8seH+//A QaHqTLtrru7y9ABIJ3pOI5OUS5G07dPm7IdHbVUOxWGxKnLpDC7gBdxxk9G6xhAKy29OgyqfndI qEjAbQCyuQriUpVUCEYn+RarCUirOWEJhXFX5enUd6sjpRmzQRNtSeBR/2lHGSbulb3qNlHQNM9 M5uQsCUchCdTyK4V4I2D764/fOsiqbOaU1gwIdGuwxzXvJhRlDHP8XRZXMAt2IKVJ4S1cwvXf8U QR+XkXFeSa5OYGqlmne/7vvZQMYGnZ8/C9uvr0np0EHdxgt6aV1sjdGMM7rXupaOOr4HE6/+ X-Google-Smtp-Source: AGHT+IEzldSoHpbFJ8LyTzhwZvLfFVTdY8X99oMH42Te6kruGNMvLONB9qbuJk+r6d2HB1pbm18lmw== X-Received: by 2002:a17:902:fc44:b0:234:9374:cfae with SMTP id d9443c01a7336-23ac40f4d78mr236022925ad.19.1751332348107; Mon, 30 Jun 2025 18:12:28 -0700 (PDT) Received: from pop-os.scu.edu ([129.210.115.104]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23acb39bfbesm100007455ad.109.2025.06.30.18.12.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Jun 2025 18:12:27 -0700 (PDT) From: Cong Wang To: netdev@vger.kernel.org Cc: bpf@vger.kernel.org, john.fastabend@gmail.com, jakub@cloudflare.com, zijianzhang@bytedance.com, zhoufeng.zf@bytedance.com, Cong Wang Subject: [Patch bpf-next v4 3/4] skmsg: save some space in struct sk_psock Date: Mon, 30 Jun 2025 18:12:00 -0700 Message-Id: <20250701011201.235392-4-xiyou.wangcong@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250701011201.235392-1-xiyou.wangcong@gmail.com> References: <20250701011201.235392-1-xiyou.wangcong@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Cong Wang This patch aims to save some space in struct sk_psock and prepares for the next patch which will add more fields. psock->eval can only have 4 possible values, make it 8-bit is sufficient. psock->redir_ingress is just a boolean, using 1 bit is enough. Reviewed-by: John Fastabend Signed-off-by: Cong Wang --- include/linux/skmsg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h index bf28ce9b5fdb..7620f170c4b1 100644 --- a/include/linux/skmsg.h +++ b/include/linux/skmsg.h @@ -85,8 +85,8 @@ struct sk_psock { struct sock *sk_redir; u32 apply_bytes; u32 cork_bytes; - u32 eval; - bool redir_ingress; /* undefined if sk_redir is null */ + u8 eval; + u8 redir_ingress : 1; /* undefined if sk_redir is null */ struct sk_msg *cork; struct sk_psock_progs progs; #if IS_ENABLED(CONFIG_BPF_STREAM_PARSER) -- 2.34.1