Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp2353385ybl; Mon, 20 Jan 2020 01:08:24 -0800 (PST) X-Google-Smtp-Source: APXvYqxdlsA4/9md/bOdbEMk3UEipCLi7v4nE3o6Da2xh4ZP+ZaWignuXI4ExnEWIvX72SScygXD X-Received: by 2002:a05:6830:10d7:: with SMTP id z23mr15235702oto.114.1579511304388; Mon, 20 Jan 2020 01:08:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1579511304; cv=none; d=google.com; s=arc-20160816; b=CI7q2YAY5+rlvGIzVGpzFLB+BwI1wiXt4iZ4i4PUCojJ8LYlx1E09CfGhtn/jx/nst 4rMecjWdQ8TdahorqfSmVpCr9FcYExqWw0REIOiJag2LqnS88YrJJvDKE64H5xEmbFFF bTkccQVyIKF/4bkoI5vS8tgUW7bWLBhXm6A5iEQDDPGAdcBNwOo3yzM6924dD59uZ2dE Zrj+fZcdmySgZ87vIe7VvQ8WB3Ie+JX0LUbxzoskEr8Tj5mWBSBChkCg2rLvTUjHAB7x qOSNB3c2cQr+01mcjsCXnQLqUbyPzIGXE3rR6jvZkkfRY/Zk1G9sKngLp0Xcbvzb+Mp5 10OQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date; bh=mmPWMaGLbcOrVsFTT7eTNl89hEhjBWLki4sQa8183qE=; b=PWlyTSJONNTq2i2B2lI+bGgBSfrix550VhXuvL3Ec0BDhcwLvUCueHk0xJxrHTPsn0 sIehBzEIcR/77v020BWmNetLw41U4H8+EI2SsHED9mQ5dfn3DSMNlZDCbI3IcXiQS2hm PLkYNedYIkf7zqOOeiA9Wz1kvGpMa5g3WDrjErPjVMGBoB4W9wMnKscsLcB/0vxDwQHN MGRBlR7u0zB2noHtjodHZGem2AM8P58+AAsvERZU820S6QfWCTAvSYQvvM8EJRU2CWjH BfhkSp8OtDWYqAqLrvWVycxR82iHQQHkuMlNNIVqt5u4vlMWDQ+pIjdNCEHfv5mglMNA PgfA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o4si17815537otp.200.2020.01.20.01.08.12; Mon, 20 Jan 2020 01:08:24 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726901AbgATJGO (ORCPT + 99 others); Mon, 20 Jan 2020 04:06:14 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:54952 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725872AbgATJGO (ORCPT ); Mon, 20 Jan 2020 04:06:14 -0500 Received: from localhost (82-95-191-104.ip.xs4all.nl [82.95.191.104]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id B741D153D04BF; Mon, 20 Jan 2020 01:06:11 -0800 (PST) Date: Mon, 20 Jan 2020 10:06:10 +0100 (CET) Message-Id: <20200120.100610.546818167633238909.davem@davemloft.net> To: sgarzare@redhat.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jhansen@vmware.com, jasowang@redhat.com, kvm@vger.kernel.org, stefanha@redhat.com, virtualization@lists.linux-foundation.org, linux-hyperv@vger.kernel.org, mst@redhat.com, decui@microsoft.com Subject: Re: [PATCH net-next 1/3] vsock: add network namespace support From: David Miller In-Reply-To: <20200116172428.311437-2-sgarzare@redhat.com> References: <20200116172428.311437-1-sgarzare@redhat.com> <20200116172428.311437-2-sgarzare@redhat.com> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 20 Jan 2020 01:06:13 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stefano Garzarella Date: Thu, 16 Jan 2020 18:24:26 +0100 > This patch adds 'netns' module param to enable this new feature > (disabled by default), because it changes vsock's behavior with > network namespaces and could break existing applications. Sorry, no. I wonder if you can even design a legitimate, reasonable, use case where these netns changes could break things. I am totally against adding a module parameter for this, it's incredibly confusing for users and will create a test scenerio that is strongly less likely to be covered.