From patchwork Mon Jul 9 15:24:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 10516237 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4459E601D4 for ; Tue, 10 Jul 2018 06:57:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FC6B28C10 for ; Tue, 10 Jul 2018 06:57:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 229B728C38; Tue, 10 Jul 2018 06:57:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D14CC28C10 for ; Tue, 10 Jul 2018 06:57:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 765D06E7D8; Tue, 10 Jul 2018 06:56:07 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org X-Greylist: delayed 1324 seconds by postgrey-1.36 at gabe; Mon, 09 Jul 2018 15:47:18 UTC Received: from gateway34.websitewelcome.com (gateway34.websitewelcome.com [192.185.148.204]) by gabe.freedesktop.org (Postfix) with ESMTPS id A82A46E46B for ; Mon, 9 Jul 2018 15:47:18 +0000 (UTC) Received: from cm11.websitewelcome.com (cm11.websitewelcome.com [100.42.49.5]) by gateway34.websitewelcome.com (Postfix) with ESMTP id 0FDC412C671A for ; Mon, 9 Jul 2018 10:25:13 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id cY1xf5imuRPojcY2BffMxy; Mon, 09 Jul 2018 10:25:12 -0500 X-Authority-Reason: nr=8 Received: from [189.250.65.56] (port=45474 helo=embeddedor) by gator4166.hostgator.com with esmtpa (Exim 4.91) (envelope-from ) id 1fcY1w-000sDl-UI; Mon, 09 Jul 2018 10:24:49 -0500 Date: Mon, 9 Jul 2018 10:24:47 -0500 From: "Gustavo A. R. Silva" To: Christian Koenig , Roger He , David Airlie Subject: [PATCH] drm/ttm: use swap macro in ttm_bo_handle_move_mem Message-ID: <20180709152447.GA27520@embeddedor.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - lists.freedesktop.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 189.250.65.56 X-Source-L: No X-Exim-ID: 1fcY1w-000sDl-UI X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: (embeddedor) [189.250.65.56]:45474 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 4 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes X-Mailman-Approved-At: Tue, 10 Jul 2018 06:55:25 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, "Gustavo A. R. Silva" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Make use of the swap macro and remove unnecessary variable *tmp_mem*. This makes the code easier to read and maintain. Also, reduces the stack usage. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva --- drivers/gpu/drm/ttm/ttm_bo.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 5d8688e52..5142dcb 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -287,12 +287,9 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo, if (ret) { if (bdev->driver->move_notify) { - struct ttm_mem_reg tmp_mem = *mem; - *mem = bo->mem; - bo->mem = tmp_mem; + swap(*mem, bo->mem); bdev->driver->move_notify(bo, false, mem); - bo->mem = *mem; - *mem = tmp_mem; + swap(*mem, bo->mem); } goto out_err;