From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752290AbaJKMYk (ORCPT ); Sat, 11 Oct 2014 08:24:40 -0400 Received: from a.ns.miles-group.at ([95.130.255.143]:65275 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751993AbaJKMYj (ORCPT ); Sat, 11 Oct 2014 08:24:39 -0400 Message-ID: <54392181.8050707@nod.at> Date: Sat, 11 Oct 2014 14:24:33 +0200 From: Richard Weinberger User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: Nicolas Iooss , Jeff Dike , user-mode-linux-devel@lists.sourceforge.net, user-mode-linux-user@lists.sourceforge.net CC: linux-kernel@vger.kernel.org Subject: Re: [PATCH] um: always use the same type for __syscall_stub_start References: <1413026981-9667-1-git-send-email-nicolas.iooss_linux@m4x.org> <54391792.40508@nod.at> <54391F7C.1050001@m4x.org> In-Reply-To: <54391F7C.1050001@m4x.org> Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 11.10.2014 um 14:15 schrieb Nicolas Iooss: > 2014-10-11 13:42 GMT+02:00 Richard Weinberger: >> Am 11.10.2014 um 13:29 schrieb Nicolas Iooss: >>> syscall_stub_start is declared with different types in C files: >>> >>> arch/um/kernel/physmem.c: extern int __syscall_stub_start; >>> arch/um/kernel/skas/mmu.c: extern int __syscall_stub_start; >>> arch/um/os-Linux/skas/mem.c: extern unsigned long __syscall_stub_start; >>> arch/um/os-Linux/skas/process.c: extern int __syscall_stub_start; >>> >>> Fix this inconsistency by always using unsigned long. This does not >>> change anything in the compiled code because only the address of >>> __syscall_stub_start is used, but it makes the static checker I use >>> stop complaining about incompatible declarations. >> >> While we're here, can you put these declarations into a single header > file? > > Sure. Do you have a specific header file in mind or shall I create > arch/um/include/asm/sections.h with declarations for > __syscall_stub_start, __syscall_stub_end and __binary_start (used in > arch/um/kernel/um_arch.c)? Not really. Maybe you can find a common header for all. But I fear where is a reason why these declarations are not in a common header. They are used in the kernel- and userspace part of UML. Anyway, please give it a try. :) Thanks, //richard