From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932709AbcASJHp (ORCPT ); Tue, 19 Jan 2016 04:07:45 -0500 Received: from mail-wm0-f53.google.com ([74.125.82.53]:34454 "EHLO mail-wm0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932690AbcASJHj (ORCPT ); Tue, 19 Jan 2016 04:07:39 -0500 Date: Tue, 19 Jan 2016 10:07:36 +0100 From: Pali =?utf-8?B?Um9ow6Fy?= To: Jean Delvare Cc: Andy Lutomirski , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 3/3] dmi: Make dmi_walk and dmi_walk_early return real error codes Message-ID: <20160119090736.GF7192@pali> References: <9d1eb8634669ef09334c7e792eb21f20b320a07b.1453150613.git.luto@kernel.org> <20160119085426.7d4b1f8b@endymion.delvare> <20160119083633.GD7192@pali> <20160119100303.73cf6256@endymion.delvare> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20160119100303.73cf6256@endymion.delvare> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 19 January 2016 10:03:03 Jean Delvare wrote: > Hi Pali, > > On Tue, 19 Jan 2016 09:36:33 +0100, Pali Rohár wrote: > > On Tuesday 19 January 2016 08:54:26 Jean Delvare wrote: > > > > @@ -978,11 +978,11 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *), > > > > u8 *buf; > > > > > > > > if (!dmi_available) > > > > - return -1; > > > > + return -ENOENT; > > > > > > -ENOSYS would seem more appropriate? > > > > IIRC -ENOSYS is for non implemented syscalls. > > I can see a lot of -ENOSYS in include/linux/*.h returned by stubs when > a specific subsystem is not included. Not related to syscalls at all. > This is what lead to my suggestion. https://lkml.org/lkml/2014/8/22/492 -- Pali Rohár pali.rohar@gmail.com