From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B960C433ED for ; Wed, 12 May 2021 11:06:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD17461075 for ; Wed, 12 May 2021 11:06:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230109AbhELLHN (ORCPT ); Wed, 12 May 2021 07:07:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230019AbhELLHK (ORCPT ); Wed, 12 May 2021 07:07:10 -0400 Received: from canardo.mork.no (canardo.mork.no [IPv6:2001:4641::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0791EC061574 for ; Wed, 12 May 2021 04:06:01 -0700 (PDT) Received: from miraculix.mork.no (fwa185.mork.no [192.168.9.185]) (authenticated bits=0) by canardo.mork.no (8.15.2/8.15.2) with ESMTPSA id 14CB5fWW006179 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Wed, 12 May 2021 13:05:41 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mork.no; s=b; t=1620817541; bh=WT9IlVcU8W6uU/8XrkMKnsZd/CQKCOOeo6vuIONjm90=; h=From:To:Cc:Subject:References:Date:Message-ID:From; b=UZQ8bFZ0qvE4pLT2imJTlT52aUtIeozGqC1JLMpFf0NESdPTlyZswauLs54dIlDUD b7Zrp60EKu0sMnIlxVR71uNRlYqeQnWpS4wCP4GSYVv+EunjTb+Hgh+JgdIp8Ql0ag TvD3P8TJ3XXi4gKMXd6et8FxoaErnnslzilIvi+M= Received: from bjorn by miraculix.mork.no with local (Exim 4.94.2) (envelope-from ) id 1lgmgO-000aan-BW; Wed, 12 May 2021 13:05:40 +0200 From: =?utf-8?Q?Bj=C3=B8rn_Mork?= To: Loic Poulain Cc: Aleksander Morgado , Jakub Kicinski , Oliver Neukum , "David S. Miller" , Network Development , dcbw@gapps.redhat.com Subject: Re: [PATCH net-next v2 2/2] usb: class: cdc-wdm: WWAN framework integration Organization: m References: <1620744143-26075-1-git-send-email-loic.poulain@linaro.org> <1620744143-26075-2-git-send-email-loic.poulain@linaro.org> Date: Wed, 12 May 2021 13:05:40 +0200 In-Reply-To: (Loic Poulain's message of "Wed, 12 May 2021 13:01:55 +0200") Message-ID: <878s4kxldn.fsf@miraculix.mork.no> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: clamav-milter 0.102.4 at canardo X-Virus-Status: Clean Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Loic Poulain writes: > I'm however open discussing other strategies: > - Do not change anything, keep USB WWAN devices out of the WWAN subsystem. > - Migrate cdc-wdm completely to WWAN and get rid of the cdc-wdm chardev > - Build time choice, if CONFIG_WWAN, registered to WWAN, otherwise > exposed through cdc-wdm chardev. > - Run time choice, use either the new WWAN chardev or the legacy > cdc-wdm chardev (this patch) > - ... > > I would be interested in getting input from others/maintainers on this. I appreciate the work you do. When I am silent on the issue, it's because I don't know the best solution (this is a well proven fact :-) and don't want to affect the results by arbitrary comments. There is one thing I can say though: No build time options, please. Bj=C3=B8rn