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=-15.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1,USER_IN_DEF_DKIM_WL autolearn=no 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 13077C433E1 for ; Wed, 26 Aug 2020 20:20:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CEA812076C for ; Wed, 26 Aug 2020 20:20:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="bmera78M" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726609AbgHZUUZ (ORCPT ); Wed, 26 Aug 2020 16:20:25 -0400 Received: from linux.microsoft.com ([13.77.154.182]:42398 "EHLO linux.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726241AbgHZUUY (ORCPT ); Wed, 26 Aug 2020 16:20:24 -0400 Received: from [192.168.1.17] (50-47-107-221.evrt.wa.frontiernet.net [50.47.107.221]) by linux.microsoft.com (Postfix) with ESMTPSA id 9B05920B4908; Wed, 26 Aug 2020 13:20:23 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 9B05920B4908 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1598473223; bh=EX/DwFAXiHCmLBGtxTOq0U+Q9LW6/6kBb+g19ZDld40=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=bmera78MVtkF/OSr/j4ERa4NV3ikXNA5CPNgXnXmYldvTa+elh8oRvWYtcBfIeSww jHp0cVUYeg8pOTEsswWJj/X+1/wWQbBdC14ccpMZhVkbmEkdrQ88seEx9M3SMYRpft FZNZTwuQXpzNMBBOLxKYAJBrRnu7AUA0AEZd7lpQ= Subject: Re: [PATCH 1/4] drivers: hv: dxgkrnl: core code To: iourit@microsoft.com, iouri_t@hotmail.com Cc: haiyangz@microsoft.com, sthemmin@microsoft.com, gregkh@linuxfoundation.org, iourit@microsoft.com, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org References: <20200814123856.3880009-1-sashal@kernel.org> <20200814123856.3880009-2-sashal@kernel.org> <20200814131839.u2vy52mtiejtuwcg@liuwe-devbox-debian-v2> From: Iouri Tarassov Message-ID: <7db18ff7-e99b-62db-508e-a6054c9ac3f9@linux.microsoft.com> Date: Wed, 26 Aug 2020 13:20:23 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200814131839.u2vy52mtiejtuwcg@liuwe-devbox-debian-v2> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org On 8/14/2020 6:18 AM, Wei Liu wrote: > On Fri, Aug 14, 2020 at 08:38:53AM -0400, Sasha Levin wrote: > [...] >> + >> +#include "dxgkrnl.h" >> + >> +int dxgadapter_init(struct dxgadapter *adapter, struct hv_device *hdev) >> +{ >> + int ret = 0; >> + char s[80]; >> + >> + UNUSED(s); > If s is not used, why not just remove it? > > Indeed it is not used anywhere in this function. That saves you 80 bytes > on stack. > >> +static int dxgk_destroy_hwcontext(struct dxgprocess *process, >> + void *__user inargs) >> +{ >> + /* This is obsolete entry point */ >> + return ENOTTY; >> +} >> + > Other places have been using negative numbers for errors. I guess you > want -ENOTTY here too. > > Wei. > >