From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 016A5C6778A for ; Thu, 5 Jul 2018 05:39:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B675F23D80 for ; Thu, 5 Jul 2018 05:39:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B675F23D80 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-sky.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753250AbeGEFjR (ORCPT ); Thu, 5 Jul 2018 01:39:17 -0400 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:56627 "EHLO smtp2200-217.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751609AbeGEFjP (ORCPT ); Thu, 5 Jul 2018 01:39:15 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.2390907|-1;CH=green;FP=0|0|0|0|0|-1|-1|-1;HT=e02c03308;MF=ren_guo@c-sky.com;NM=1;PH=DS;RN=11;RT=11;SR=0;TI=SMTPD_---.CMUzQM3_1530769123; Received: from localhost(mailfrom:ren_guo@c-sky.com fp:SMTPD_---.CMUzQM3_1530769123) by smtp.aliyun-inc.com(10.147.42.135); Thu, 05 Jul 2018 13:38:43 +0800 Date: Thu, 5 Jul 2018 13:38:43 +0800 From: Guo Ren To: Arnd Bergmann Cc: linux-arch , Linux Kernel Mailing List , Thomas Gleixner , Daniel Lezcano , Jason Cooper , c-sky_gcc_upstream@c-sky.com, gnu-csky@mentor.com, thomas.petazzoni@bootlin.com, wbx@uclibc-ng.org, Greentime Hu Subject: Re: [PATCH V2 05/19] csky: System Call Message-ID: <20180705053842.GA11749@guoren> References: <1005fef6031efbee4b5041ee286c053dd97670e6.1530465326.git.ren_guo@c-sky.com> <20180704114952.GB22857@guoren> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 04, 2018 at 11:04:37PM +0200, Arnd Bergmann wrote: > Right, I do understand what it's used for, my point was that you > don't really need a separate system call number for it, just redirect > the entry point using the same trick that nds32 has in > arch/nds32/kernel/syscall_table.c: > > #define sys_fadvise64_64 csky_fadvise64_64 Thx for the tip :) Guo Ren