From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH][RELEASE] megaraid 2.10.2 Driver Date: Fri, 16 Apr 2004 22:15:18 -0400 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <40809336.2060302@pobox.com> References: <0E3FA95632D6D047BA649F95DAB60E570230C77B@exa-atlanta.se.lsil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:39828 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S261273AbUDQCPd (ORCPT ); Fri, 16 Apr 2004 22:15:33 -0400 In-Reply-To: <0E3FA95632D6D047BA649F95DAB60E570230C77B@exa-atlanta.se.lsil.com> List-Id: linux-scsi@vger.kernel.org To: "Bagalkote, Sreenivas" Cc: "'linux-kernel@vger.kernel.org'" , "'linux-scsi@vger.kernel.org'" Bagalkote, Sreenivas wrote: >>>ummmm what??? uxferaddr is u32. why are you casting it to a pointer? > > > Both copy_to_user and copy_from_user take pointers, don't they? Yes, but consider on x86-64 a native pointer is _always_ 32-bit, therefore the interface is broken if it assumes the input pointer is 32 bits. Jeff