From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (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 65C5A45BE3 for ; Thu, 5 Mar 2026 02:27:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772677643; cv=none; b=SZEO4hdDHWmCW6qHi5YU43sAw9cl0LPga9urJVb7hcasZR86DG5aa9+u3/S4/nvXFZv/FIfqaZ5J3+7xjPdjFuheGBsC80yrecJexd5DVTDua6ixhYaCIGiltkFg5dJMIgEc+ISrpGrQWZunZYz6dImJILo3OYnG7urEbDxxPF4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772677643; c=relaxed/simple; bh=VzzyG4X9qMInfMfzq5jCcYjtMsJpzG271GSjgZfyavI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=SxpfcgFq5HDNrHke4gYYUWvPxidc6jz8Yog1741BrMEoxwnrVcJ2oIic4XPhsaKBZjBM2t16403Q7xNBCfI13afGtFPwEWrtTernFoMejhvP6j8SMEatPcNXRNnmC5lT3TiTGK3+cI6PDKjLlFgSfhzaxukqlxcoEFA6cnbSaUk= 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=J/HBjRQ7; arc=none smtp.client-ip=209.85.210.179 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="J/HBjRQ7" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-82748095892so3706102b3a.0 for ; Wed, 04 Mar 2026 18:27:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1772677642; x=1773282442; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=SkMPhuGO93KuU6yRsug30lnR/bg4ii0iaHzSwQ3ioDg=; b=J/HBjRQ7ZDoANacMwSv1ENgxzuUJWyu/oNsRvmtKAw1nQL543pzLfJIH1ToMTf3y0F IC9E6aCsDHmUunD5vds+hgTR3UFSepHq1l0WSx7mJ9iEPOY4tBHyKW03DpFzVnj3vzdx OnMhjJUCQffROLoeCBDqSs3XYI8BP5lVBq6+7FjGj2NtMTOQPObU19GPk+oDb0It2UUJ QrFuUVCimVNR+SO4e9HKIBNRa09w/sW1bxGXfiDMcjgY88fQE5P/qk8nhHvO3ZphpDPk wAoakMwTzIZH++0l0kvJgUqHUKN/8M5S7oq3j6kw9JCBoYJTmMwO6x+T0nqK9ZVi9jSC lsTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772677642; x=1773282442; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=SkMPhuGO93KuU6yRsug30lnR/bg4ii0iaHzSwQ3ioDg=; b=TAbHDPisPqe2UKzzMTJFMge0sQGwMrSAIri01Lq2/YT4dt/DvMe7nVCYLdMN6arXtB P5H7M2ViIUhe0wK+Cil2zgBdwecvd7PyX7wbFuNlTbRhbR5tEHD/FkKWO03ZonWrIjC1 7m+catSYBbfP+Mfh/asSgsmzz90Ox4HBTXOIjk1GP9m9ML0zEQBT1XUkZ5CxQrR3HvFg M0/lVkB4jWXq5e+t4mXypO07NDRxyLw2uHTEuqVbRSYolFKxEAvWx9c4A3PP3kLuPaZy O+KiZoSdCAjnPn2IkmZBNTlrsZ+sA91fWvEkXypip/wVCNCUQFkW9IzQvLsIOceXcvzz zX/Q== X-Forwarded-Encrypted: i=1; AJvYcCWtVQxiO807TxLsT2Rf5XTnTmAfTtvMvltdxLLmka+cOH4flkG/MBtA3xTl9u8wwFxD8LlNEtA=@vger.kernel.org X-Gm-Message-State: AOJu0Yx2mKWfm5nRjRR5xPO3tBhpuDhkvDH7b5BcfQqQf9pY59wNgr1a ewxjxEezwoSOoY1jzwVn2q/QFFTHNvKrAURkLm4102UabQsRGlEClhYU X-Gm-Gg: ATEYQzyPAxpcSF+zcCciuRbE/e/ZFI2noPGcBg08ZDAjbQJo/vgUJbuM8h74XswcA3k +fQznpW8gvjvTazqi9TDyYuQVn1bUzB4RCV56hnrsGTcFbRejttCXT0CaYV10r2ze2X1riX9NyZ 8puJ2kQHtSbUU483h32mzu+1z74nZBCbDya1jf8Qj4A3pJGrkxi8O+6qr3D3lw5WbEx8daHL+2y p4uxa4Z7zKewL3QREjgPcWYgwz0BiUsJT/OV0UNaTEqIsIoV8L1/zcNn4yAYi4kHKhp2Ux0mJ1l vBRI/U1knktTxiC1JXJ68+g9OPJqBGrMj26PubpynWh6jhqI9pMWSURmgz1s+APHVTb4rbt0XKa EPw7lXUP5PhwiS/1ZmxHQS2K/yW2ao5TRRwT/mPd4lAWKDFH9AHHTkTf9U4q0Fxuel4Y41u0C0m IBlmLD7FipObTV0kRtzgmOBnALAFVNPZ1oQaqUWRB8FFF1k2Dym6WB0+wcVlrSltZx2CQqBGfAu GE7YoGvipJm X-Received: by 2002:a17:90b:2fc8:b0:340:4abf:391d with SMTP id 98e67ed59e1d1-359a6a3d14cmr3510152a91.16.1772677641554; Wed, 04 Mar 2026 18:27:21 -0800 (PST) Received: from dpc2500057.. (fsb6a9315e.tkyc502.ap.nuro.jp. [182.169.49.94]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-359b2e14821sm242654a91.17.2026.03.04.18.27.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Mar 2026 18:27:21 -0800 (PST) From: Keita Morisaki To: Eric Dumazet , Neal Cardwell , "David S . Miller" , David Ahern , Jakub Kicinski , Paolo Abeni Cc: Kuniyuki Iwashima , Simon Horman , Jakub Sitnicki , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Keita Morisaki Subject: [PATCH net-next] tcp: remove unused hash_size from struct tcp_out_options Date: Thu, 5 Mar 2026 11:27:03 +0900 Message-Id: <20260305022703.3946470-1-kmta1236@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit hash_size is declared but never read. The MD5 path always uses a fixed size of 16, and the TCP-AO path uses tcp_ao_maclen(). Suggested-by: Jakub Sitnicki Signed-off-by: Keita Morisaki --- net/ipv4/tcp_output.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 63ee037f46e50..f0e04ebd8b723 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -441,7 +441,6 @@ struct tcp_out_options { u8 ws; /* window scale, 0 to disable */ u8 num_accecn_fields:7, /* number of AccECN fields needed */ use_synack_ecn_bytes:1; /* Use synack_ecn_bytes or not */ - u8 hash_size; /* bytes in hash_location */ __u8 *hash_location; /* temporary pointer, overloaded */ __u32 tsval, tsecr; /* need to include OPTION_TS */ struct tcp_fastopen_cookie *fastopen_cookie; /* Fast open cookie */ base-commit: 21fc6b53f12379f3f9b29830be3597a322261df8 -- 2.34.1