From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 57B1641EA5; Wed, 15 Mar 2023 22:17:11 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9581842D4E; Wed, 15 Mar 2023 22:16:03 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id 72CD0427F2 for ; Wed, 15 Mar 2023 22:15:48 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1086) id 5019C20C5A48; Wed, 15 Mar 2023 14:15:46 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 5019C20C5A48 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1678914947; bh=iuHJ0StecZ9Raltf9LtwKbKGPzFt503WEpiLM/1aHZ8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=irKbQhj3whMuSwgRiqt1xjIRg73rbdXV9D70jybx+ETdt1VpIKv6h3+5N/I3PgBHw ecs8ZIiww3TsB5V2IlZBhI4yihLsj2Ba/JkgOaMRQwd3sPuF4xHoXM+wdUKTO5vIK2 Jl2saCk3sjVsAVrL8zVT15n97XaXNthd+TrmJdqI= From: Tyler Retzlaff To: dev@dpdk.org Cc: Honnappa.Nagarahalli@arm.com, Ruifeng.Wang@arm.com, thomas@monjalon.net, Tyler Retzlaff Subject: [PATCH v2 12/16] bbdev: use previous value atomic fetch operations Date: Wed, 15 Mar 2023 14:15:41 -0700 Message-Id: <1678914945-10638-13-git-send-email-roretzla@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1678914945-10638-1-git-send-email-roretzla@linux.microsoft.com> References: <1678486530-20688-1-git-send-email-roretzla@linux.microsoft.com> <1678914945-10638-1-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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Use __atomic_fetch_{add,and,or,sub,xor} instead of __atomic_{add,and,or,sub,xor}_fetch adding the necessary code to allow consumption of the resulting value. Signed-off-by: Tyler Retzlaff --- lib/bbdev/rte_bbdev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/bbdev/rte_bbdev.c b/lib/bbdev/rte_bbdev.c index 1521cdb..9df0837 100644 --- a/lib/bbdev/rte_bbdev.c +++ b/lib/bbdev/rte_bbdev.c @@ -250,8 +250,8 @@ struct rte_bbdev * } /* clear shared BBDev Data if no process is using the device anymore */ - if (__atomic_sub_fetch(&bbdev->data->process_cnt, 1, - __ATOMIC_RELAXED) == 0) + if (__atomic_fetch_sub(&bbdev->data->process_cnt, 1, + __ATOMIC_RELAXED) - 1 == 0) memset(bbdev->data, 0, sizeof(*bbdev->data)); memset(bbdev, 0, sizeof(*bbdev)); -- 1.8.3.1