From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762975AbcALSmn (ORCPT ); Tue, 12 Jan 2016 13:42:43 -0500 Received: from mail-pa0-f50.google.com ([209.85.220.50]:33595 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750741AbcALSml (ORCPT ); Tue, 12 Jan 2016 13:42:41 -0500 Date: Tue, 12 Jan 2016 10:42:47 -0800 From: Stephen Hemminger To: Lubomir Rintel Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "David S. Miller" Subject: Re: [PATCH 2/3] dummy: make device count build-time configurable Message-ID: <20160112104247.1004c32c@xeon-e3> In-Reply-To: <1452599853-27399-1-git-send-email-lkundrak@v3.sk> References: <1452599853-27399-1-git-send-email-lkundrak@v3.sk> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 12 Jan 2016 12:57:33 +0100 Lubomir Rintel wrote: > The devices can be created at run-time for quite some time already and the > load-time device creation collides with attempts to create the device of > the same name: > > # rmmod dummy > # ip link add dummy0 type dummy > RTNETLINK answers: File exists > > This is pretty much the same situation as was with the block loop devices > which was solved by adding a build-time configuration that the > distributions could use as they deem fit while keeping the default for > compatibility. > > Let's do that here as well. > > Signed-off-by: Lubomir Rintel There is already a module parameter for this, so making it a compile time option adds nothing.