From nobody Wed Sep 17 19:36:18 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E60561F1921 for ; Wed, 30 Jul 2025 07:22:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753860176; cv=none; b=fNEGuTGjm/wt/3o5B9yW/Pm13iLey/K+uH/UupPY57a4feBTNvmzKysJ2AdUdTOjiz7G79ZgFGc+Ep+tg2TcJ50SOCe/fm4l3SkZGM4eSGbdlGHAfnH9lySh5/kf/rg2tXa/vMOT+wbTBvIkl5pnseN3GeVQ9TYwOAyaPgdQG0k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753860176; c=relaxed/simple; bh=KQ9GNW1jz9Jsjdw9OHviR3jdnQ+R1po+uLn95QKvQUY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aJvUpQd2YKjQS5sYPk+Gjuon/JWpUPm3HinuA8c4OjVk0ZhmNIsHR1MYeb80JBu9pgZPgmtTLHcq3Kmf25dBe9u5MNoP0EHvLtMwvkNxfUhj5bvLD/dGEYgeJCdEKY17GQtmUh2ugPeonXgg0Ovp+fGdhhdyMap1fzd/H0ypp5w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kBqhYTAA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kBqhYTAA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F280EC4CEF5; Wed, 30 Jul 2025 07:22:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753860175; bh=KQ9GNW1jz9Jsjdw9OHviR3jdnQ+R1po+uLn95QKvQUY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kBqhYTAAZ1PwSOWQ9AcNGoAaDVJB4+ZPQ3TEAfpzQ8DFg6bwTzuZmPs0wP36tvM2d bPTmKfLdfLr4k5KKAV1gkP/uDNPbs3mRGVL6craLR6Olt6tn00ykdQ44pPzUzb5mCU mnatUm3cx8vyVUL+gOsI3AnWtstQ/JzncAvlM13fNGSsHicNqI8yI3NAKaDaqZ7qYf 1Xgh+DZa6qRZl812b3vKAPqCQCLzniiCSlfwQTMm9/Yz/NTVNmR92uhj2hTKpVCcpX Ica2aGsGaMo6ALR0E5Z1+1oZWanBWv6vl2ykl+PbTlUrxRxlbdRA8WSJkdBq/zedZG R5UMFhPjpnT4w== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next 1/3] mptcp: Handle TCP_MAXSEG getsockopt in common case Date: Wed, 30 Jul 2025 15:22:43 +0800 Message-ID: <059fe90b08b29763da2836a39d2dea8d04d0aa74.1753859907.git.tanggeliang@kylinos.cn> X-Mailer: git-send-email 2.48.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch simplifies MPTCP's TCP_MAXSEG getsockopt handling by moving it to the common case where other TCP options are processed. Previously it was handled separately after the main switch statement. The change: - Moves TCP_MAXSEG case into the main switch block - Removes redundant separate handling - Maintains identical functionality This improves code consistency without altering behavior. Signed-off-by: Geliang Tang --- net/mptcp/sockopt.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c index 2c267aff95be..b264185b810d 100644 --- a/net/mptcp/sockopt.c +++ b/net/mptcp/sockopt.c @@ -1404,6 +1404,7 @@ static int mptcp_getsockopt_sol_tcp(struct mptcp_sock= *msk, int optname, case TCP_FASTOPEN_CONNECT: case TCP_FASTOPEN_KEY: case TCP_FASTOPEN_NO_COOKIE: + case TCP_MAXSEG: return mptcp_getsockopt_first_sf_only(msk, SOL_TCP, optname, optval, optlen); case TCP_INQ: @@ -1428,9 +1429,6 @@ static int mptcp_getsockopt_sol_tcp(struct mptcp_sock= *msk, int optname, return mptcp_put_int_option(msk, optval, optlen, msk->notsent_lowat); case TCP_IS_MPTCP: return mptcp_put_int_option(msk, optval, optlen, 1); - case TCP_MAXSEG: - return mptcp_getsockopt_first_sf_only(msk, SOL_TCP, optname, - optval, optlen); } return -EOPNOTSUPP; } --=20 2.48.1