From patchwork Mon Mar 23 06:51:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Zengkai X-Patchwork-Id: 222056 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 429CCC54EEB for ; Mon, 23 Mar 2020 06:48:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1A1742074D for ; Mon, 23 Mar 2020 06:48:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727347AbgCWGsU (ORCPT ); Mon, 23 Mar 2020 02:48:20 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:56286 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726142AbgCWGsT (ORCPT ); Mon, 23 Mar 2020 02:48:19 -0400 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 7B578D4A8DDD5F88AC1A; Mon, 23 Mar 2020 14:48:11 +0800 (CST) Received: from huawei.com (10.175.113.25) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.487.0; Mon, 23 Mar 2020 14:48:04 +0800 From: Zheng Zengkai To: , , , CC: , , , , Subject: [PATCH net-next] net: thunderx: remove set but not used variable 'tail' Date: Mon, 23 Mar 2020 14:51:16 +0800 Message-ID: <20200323065116.45399-1-zhengzengkai@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Zheng zengkai Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/ethernet/cavium/thunder/nicvf_queues.c: In function nicvf_sq_free_used_descs: drivers/net/ethernet/cavium/thunder/nicvf_queues.c:1182:12: warning: variable tail set but not used [-Wunused-but-set-variable] It's not used since commit 4863dea3fab01("net: Adding support for Cavium ThunderX network controller"), so remove it. Reported-by: Hulk Robot Signed-off-by: Zheng zengkai --- drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c index 4ab57d33a87e..069e7413f1ef 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c @@ -1179,13 +1179,12 @@ void nicvf_sq_disable(struct nicvf *nic, int qidx) void nicvf_sq_free_used_descs(struct net_device *netdev, struct snd_queue *sq, int qidx) { - u64 head, tail; + u64 head; struct sk_buff *skb; struct nicvf *nic = netdev_priv(netdev); struct sq_hdr_subdesc *hdr; head = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_HEAD, qidx) >> 4; - tail = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_TAIL, qidx) >> 4; while (sq->head != head) { hdr = (struct sq_hdr_subdesc *)GET_SQ_DESC(sq, sq->head); if (hdr->subdesc_type != SQ_DESC_TYPE_HEADER) {