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(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: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Kuniyuki Iwashima --- 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 --=20 2.34.1