From patchwork Fri Mar 16 01:20:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Xiong X-Patchwork-Id: 10286005 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 29DB460291 for ; Fri, 16 Mar 2018 01:25:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1BEB328CAC for ; Fri, 16 Mar 2018 01:25:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0E33D28CBF; Fri, 16 Mar 2018 01:25:03 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable 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 D69FE28CAC for ; Fri, 16 Mar 2018 01:25:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1E8D56E460; Fri, 16 Mar 2018 01:24:53 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id F2A136E289; Fri, 16 Mar 2018 01:24:50 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Mar 2018 18:24:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,313,1517904000"; d="scan'208";a="25108903" Received: from iotg-dev-jx.fm.intel.com ([10.1.122.104]) by orsmga007.jf.intel.com with ESMTP; 15 Mar 2018 18:24:50 -0700 From: James Xiong To: chris@chris-wilson.co.uk, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Date: Thu, 15 Mar 2018 18:20:10 -0700 Message-Id: <1521163214-13521-2-git-send-email-james.xiong@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1521163214-13521-1-git-send-email-james.xiong@intel.com> References: <1521163214-13521-1-git-send-email-james.xiong@intel.com> Subject: [Intel-gfx] [PATCH libdrm 1/5] drm: add a macro DRMLISTFOREACHENTRYREVERSE X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: james.xiong@intel.com MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: "Xiong, James" it goes through DRMLIST in a reverse order Signed-off-by: Xiong, James --- libdrm_lists.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libdrm_lists.h b/libdrm_lists.h index 8926d8d..400c731 100644 --- a/libdrm_lists.h +++ b/libdrm_lists.h @@ -101,6 +101,12 @@ typedef struct _drmMMListHead (__item) = DRMLISTENTRY(typeof(*__item), \ (__item)->__head.next, __head)) +#define DRMLISTFOREACHENTRYREVERSE(__item, __list, __head) \ + for ((__item) = DRMLISTENTRY(typeof(*__item), (__list)->prev, __head); \ + &(__item)->__head != (__list); \ + (__item) = DRMLISTENTRY(typeof(*__item), \ + (__item)->__head.prev, __head)) + #define DRMLISTFOREACHENTRYSAFE(__item, __temp, __list, __head) \ for ((__item) = DRMLISTENTRY(typeof(*__item), (__list)->next, __head), \ (__temp) = DRMLISTENTRY(typeof(*__item), \