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=-9.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 6EDECC433DB for ; Fri, 12 Mar 2021 07:33:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3571964F87 for ; Fri, 12 Mar 2021 07:33:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230257AbhCLHdA (ORCPT ); Fri, 12 Mar 2021 02:33:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231812AbhCLHcl (ORCPT ); Fri, 12 Mar 2021 02:32:41 -0500 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD340C061574 for ; Thu, 11 Mar 2021 23:32:40 -0800 (PST) Received: by mail-wm1-x329.google.com with SMTP id g20so3173528wmk.3 for ; Thu, 11 Mar 2021 23:32:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:reply-to:subject:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=2vLlMPsBQyKsFoewMMaHWk8ZTsxgQH5oRVh2R46t72I=; b=eRvxO3OGAh8x8s+TynQ7Qqc3QtYDI2+D5HRMO+W6qXwkTWKvw4ZHRjJq3w3HNt79s3 wK/B+6YiYJCSK/Ymqr49GsKrHXzrZa9HN5cmiaDP0jhbiaL1B4nReFSpiV3xL9qdVDEt +f/Zx0V12aKrSKs50Bxr4PS9za2RyfMnPF521YbpTkB49TKwp+MB5JSZVxkZ6WDslpeC uwCBLjeZDyPyTiObbs6tFqTaJT5iykEOoP/f9cQUKfkCAvV3iw5yMnjGDc+NObpR6Z4S 1BOkc+0kho1n01vhzcoXnJo3DUzf7q+TtDRRduA23Sn8VySUh2nBZw1k/kYW9ddJxaEG j78Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:reply-to:subject:to:cc:references :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=2vLlMPsBQyKsFoewMMaHWk8ZTsxgQH5oRVh2R46t72I=; b=NTDrHgFVHc4geYpBanEBfJxoXSosWPGRi1+bMsaQ/XczQgvmtl14/Halcxb3DRRw7X ZqI7vUlIS/Nq5fp1PEXyDkYuqI5ezk1FiCb2Oo2nMT1Ch2Dx8Ee6C2ouBfnO3S0zscpA 9MCAkzT/E4qcsIg2gQ4e558x0g8dx/2Wi/BnIvkoQhbfN2gqZfPdVLQIwf1GyFEoqzm3 4Vn34tHcKRVwcC7Uks5iobiqlsGq4W7xOs88/cjgl8hfF911sfZpr/TIxK7f5BWZkUsV iZ5hB03lil2obNUpsCMT7uzTrXMr8wMRJ4uArPdtseJHuBaKJ9IOG2ck68HZUjaQAikH OuIw== X-Gm-Message-State: AOAM530QEuBRODe0mF9Silc39Th7+CQGvHhej5D4zyS4eba7JFtdXufI 0fIGUSE6+sKKGmiHkw3TvAk= X-Google-Smtp-Source: ABdhPJzU96plijb1/pNdMD1WsWX8VrvNK0AR4kCLhxXPrq8Xm20pf8hcvX6ZNj/+TL4Vzt3y7TBaCg== X-Received: by 2002:a1c:3b43:: with SMTP id i64mr11452642wma.43.1615534359651; Thu, 11 Mar 2021 23:32:39 -0800 (PST) Received: from ?IPv6:2a00:23c5:5785:9a01:d41c:67e5:a11f:43fe? ([2a00:23c5:5785:9a01:d41c:67e5:a11f:43fe]) by smtp.gmail.com with ESMTPSA id s18sm7584487wrr.27.2021.03.11.23.32.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 11 Mar 2021 23:32:39 -0800 (PST) From: Paul Durrant X-Google-Original-From: Paul Durrant Reply-To: paul@xen.org Subject: Re: [net-next 1/2] xen-netback: add module parameter to disable ctrl-ring To: ChiaHao Hsu , netdev@vger.kernel.org Cc: wei.liu@kernel.org, davem@davemloft.net, kuba@kernel.org, xen-devel@lists.xenproject.org References: <20210311225944.24198-1-andyhsu@amazon.com> Message-ID: Date: Fri, 12 Mar 2021 07:32:38 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210311225944.24198-1-andyhsu@amazon.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 11/03/2021 22:59, ChiaHao Hsu wrote: > In order to support live migration of guests between kernels > that do and do not support 'feature-ctrl-ring', we add a > module parameter that allows the feature to be disabled > at run time, instead of using hardcode value. > The default value is enable. > > Signed-off-by: ChiaHao Hsu Reviewed-by: Paul Durrant