From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754229AbcCIWFF (ORCPT ); Wed, 9 Mar 2016 17:05:05 -0500 Received: from mx2.suse.de ([195.135.220.15]:47772 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752032AbcCIWFB (ORCPT ); Wed, 9 Mar 2016 17:05:01 -0500 From: NeilBrown To: Keith Busch , Maxim Levitsky , Vishal Verma , Jens Axboe , Dan Williams , Ross Zwisler Date: Thu, 10 Mar 2016 08:59:28 +1100 Subject: [PATCH 0/4] Remove un-needed 'major' registration when alloc_disk(0) is used. Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-nvdimm@ml01.01.org Message-ID: <20160309215702.20904.61407.stgit@noble> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When alloc_disk(0) is used, the ->major number is ignored and irrelevant. Yet several drivers register a major number anyway. This series of patches removes the pointless registrations. The pmem driver also does this, but a patch has already been sent for that driver. Note that I am not in a position to test these beyond simple compile testing. Thanks, NeilBrown --- NeilBrown (4): nvdimm/blk: don't allocate unused major device number nvdimm/btt: don't allocate unused major device number memstick: don't allocate unused major for ms_block NVMe: don't allocate unused nvme_major drivers/memstick/core/ms_block.c | 17 ++--------------- drivers/nvdimm/blk.c | 18 +----------------- drivers/nvdimm/btt.c | 19 ++----------------- drivers/nvme/host/core.c | 16 +--------------- 4 files changed, 6 insertions(+), 64 deletions(-) -- Signature