From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751812Ab2GZJEg (ORCPT ); Thu, 26 Jul 2012 05:04:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44321 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751486Ab2GZJEe (ORCPT ); Thu, 26 Jul 2012 05:04:34 -0400 Message-ID: <50110820.4040403@redhat.com> Date: Thu, 26 Jul 2012 11:04:32 +0200 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 MIME-Version: 1.0 To: James Bottomley CC: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org Subject: Re: [PATCH 1/2] virtio-scsi: fix parsing of hotplug/hot-unplug LUN number References: <1342454751-8950-1-git-send-email-pbonzini@redhat.com> <1342454751-8950-2-git-send-email-pbonzini@redhat.com> <1343292731.3115.17.camel@dabdike> In-Reply-To: <1343292731.3115.17.camel@dabdike> 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 Il 26/07/2012 10:52, James Bottomley ha scritto: >> > +static unsigned int virtscsi_get_lun(u8 *lun_bytes) >> > +{ >> > + unsigned int lun = (lun_bytes[2] << 8) | lun_bytes[3]; >> > + return lun & 16383; >> > +} >> > + > Why are you rolling your own incomplete version of scsilun_to_int here? Because scsilun_to_int does not do the AND, so it would have exactly the same bug I'm fixing. Paolo