From mboxrd@z Thu Jan 1 00:00:00 1970 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 1B66A224F6; Tue, 15 Jul 2025 14:33:24 +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=1752590005; cv=none; b=WLdQKEznyJXYeS1QMatPqLLae0uTPy3NzFosXry7wM8gz6P1JAElmN07PwnM1QSf99x7HcrWf/4PynFIvA7HB/mi9KS5O+bO9cWVPJas5RuplcPkGuEIzM9hxgVY8qKOT0/xWQ8wC5mDSlKM0F3DLaLqeFnxO0Or+DEQdWSnhGQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752590005; c=relaxed/simple; bh=baBgjYGZ7mShO2swbwkK/E5Ef7HNDvQmMre3VKQPWZk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QbNMLwj4QngeWJd51FUCLjnMldmuFBjus2TJfcGf8lfyZc5pAkAaMOg1eTySgWdP9NpN/S1EIK0mfcsJQarWcXpBDvfmtNJ8r1OHodny3y2E3Eypnj+F4Nhaxn4q1DNZMkaHotdgivcwrYxkNCqr2MCrKDP0EfnOWnXQ+LYELe8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Szr1j7Z3; 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="Szr1j7Z3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81C55C4CEE3; Tue, 15 Jul 2025 14:33:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752590004; bh=baBgjYGZ7mShO2swbwkK/E5Ef7HNDvQmMre3VKQPWZk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Szr1j7Z3u3xIrwkVAr+JbRqSthhxqIqPq0O3eC0WdxTjnhBTxaDyQu21tbPXyuaKF ucvcvOMTe9+EEaGJCXR4cKDUp77rramHMMEn2bmxL4RyLHiaMpdxjL2/gxtuBNtz8O ldmGHmra/RZGnzMlMwKk4eWn2ajHOdkOCvtd1MEDz4FNBllwit6lUV5FXvJqmdvDSF VOg04DxiSgynCra0XqHrZNp8es/DLdwdP2Utz2LTWaHBUe2Y2enQc6FtB/bXOjZoI3 nM1FidXVuO9wF2/j87yX9jGuMFa4bVF9uQNjKZ4/2QM7SILA/dKTNAD1rz2MlE9Fkh 9feWHXAbHie6Q== Date: Tue, 15 Jul 2025 15:33:19 +0100 From: Simon Horman To: Alexandra Winter Cc: David Miller , Jakub Kicinski , Paolo Abeni , Eric Dumazet , Andrew Lunn , netdev@vger.kernel.org, linux-s390@vger.kernel.org, Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thorsten Winkler , Jonathan Corbet , linux-doc@vger.kernel.org, Nagamani PV Subject: Re: [PATCH net-next] s390/net: Remove NETIUCV device driver Message-ID: <20250715143319.GC721198@horms.kernel.org> References: <20250715074210.3999296-1-wintera@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250715074210.3999296-1-wintera@linux.ibm.com> On Tue, Jul 15, 2025 at 09:42:10AM +0200, Alexandra Winter wrote: > From: Nagamani PV > > The netiucv driver creates TCP/IP interfaces over IUCV between Linux > guests on z/VM and other z/VM entities. > > Rationale for removal: > - NETIUCV connections are only supported for compatibility with > earlier versions and not to be used for new network setups, > since at least Linux kernel 4.0. > - No known active users, use cases, or product dependencies > - The driver is no longer relevant for z/VM networking; > preferred methods include: > * Device pass-through (e.g., OSA, RoCE) > * z/VM Virtual Switch (VSWITCH) > > The IUCV mechanism itself remains supported and is actively used > via AF_IUCV, hvc_iucv, and smsg_iucv. > > Signed-off-by: Nagamani PV > Reviewed-by: Alexandra Winter > Signed-off-by: Alexandra Winter > --- > Documentation/arch/s390/driver-model.rst | 21 - > drivers/s390/net/Kconfig | 12 - > drivers/s390/net/Makefile | 1 - > drivers/s390/net/netiucv.c | 2083 ---------------------- > 4 files changed, 2117 deletions(-) > delete mode 100644 drivers/s390/net/netiucv.c Less is more :) Reviewed-by: Simon Horman