From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id B1FB143B21;
	Wed, 14 Feb 2024 02:26:43 +0100 (CET)
Received: from mails.dpdk.org (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id B37CD42E7E;
	Wed, 14 Feb 2024 02:26:33 +0100 (CET)
Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182])
 by mails.dpdk.org (Postfix) with ESMTP id 41E0F42E25
 for <dev@dpdk.org>; Wed, 14 Feb 2024 02:26:29 +0100 (CET)
Received: by linux.microsoft.com (Postfix, from userid 1086)
 id 27DA120B2002; Tue, 13 Feb 2024 17:26:28 -0800 (PST)
DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 27DA120B2002
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com;
 s=default; t=1707873988;
 bh=it/p/VucsivXNUIW/WbXsuaq9QBswo3Gr4RXOZH8brc=;
 h=From:To:Cc:Subject:Date:In-Reply-To:References:From;
 b=jffD0JBtEDiHDqC2eZtZRG4fyq5qk1ckcB6dn6IlyxV5ZmI5wZPHxVNvocCcoCfIY
 8HuAo8Vz/ilnF31Jv5OH0j08EwmV1QkmGN1c6XUHLxouylWcaf4hCiwrosfWgcthAR
 ZzSnpWVJR1VEyYr2TYF8AS3CgY+szddzKEp22bvY=
From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: dev@dpdk.org
Cc: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
 Bruce Richardson <bruce.richardson@intel.com>,
 Chengwen Feng <fengchengwen@huawei.com>,
 Cristian Dumitrescu <cristian.dumitrescu@intel.com>,
 David Christensen <drc@linux.vnet.ibm.com>,
 David Hunt <david.hunt@intel.com>, Ferruh Yigit <ferruh.yigit@amd.com>,
 Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>,
 Jasvinder Singh <jasvinder.singh@intel.com>,
 Jerin Jacob <jerinj@marvell.com>, Kevin Laatz <kevin.laatz@intel.com>,
 Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>,
 Min Zhou <zhoumin@loongson.cn>, Ruifeng Wang <ruifeng.wang@arm.com>,
 Sameh Gobriel <sameh.gobriel@intel.com>,
 Stanislaw Kardach <kda@semihalf.com>,
 Thomas Monjalon <thomas@monjalon.net>,
 Vladimir Medvedkin <vladimir.medvedkin@intel.com>,
 Yipeng Wang <yipeng1.wang@intel.com>,
 Tyler Retzlaff <roretzla@linux.microsoft.com>
Subject: [PATCH 02/14] stack: use C11 alignas
Date: Tue, 13 Feb 2024 17:26:14 -0800
Message-Id: <1707873986-29352-3-git-send-email-roretzla@linux.microsoft.com>
X-Mailer: git-send-email 1.8.3.1
In-Reply-To: <1707873986-29352-1-git-send-email-roretzla@linux.microsoft.com>
References: <1707873986-29352-1-git-send-email-roretzla@linux.microsoft.com>
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

* Move __rte_aligned from the end of {struct,union} definitions to
  be between {struct,union} and tag.

  The placement between {struct,union} and the tag allows the desired
  alignment to be imparted on the type regardless of the toolchain being
  used for all of GCC, LLVM, MSVC compilers building both C and C++.

* Replace use of __rte_aligned(a) on variables/fields with alignas(a).

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
 lib/stack/rte_stack.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/stack/rte_stack.h b/lib/stack/rte_stack.h
index a379300..277fc27 100644
--- a/lib/stack/rte_stack.h
+++ b/lib/stack/rte_stack.h
@@ -42,7 +42,7 @@ struct rte_stack_lf_head {
 
 struct rte_stack_lf_list {
 	/** List head */
-	struct rte_stack_lf_head head __rte_aligned(16);
+	alignas(16) struct rte_stack_lf_head head;
 	/** List len */
 	RTE_ATOMIC(uint64_t) len;
 };
-- 
1.8.3.1