From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.6 required=3.0 tests=DATE_IN_PAST_06_12, 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 DB8D2C33CB6 for ; Fri, 17 Jan 2020 01:38:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BCA102077B for ; Fri, 17 Jan 2020 01:38:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388484AbgAQBiX (ORCPT ); Thu, 16 Jan 2020 20:38:23 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:9180 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730720AbgAQBiX (ORCPT ); Thu, 16 Jan 2020 20:38:23 -0500 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 7529E2450DA21B6F08DA; Fri, 17 Jan 2020 09:38:20 +0800 (CST) Received: from localhost (10.133.213.239) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.439.0; Fri, 17 Jan 2020 09:38:12 +0800 From: YueHaibing To: , , , , , , CC: , , , YueHaibing Subject: [PATCH bpf-next] bpf: Remove set but not used variable 'first_key' Date: Thu, 16 Jan 2020 22:53:00 +0800 Message-ID: <20200116145300.59056-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.133.213.239] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kernel/bpf/syscall.c: In function generic_map_lookup_batch: kernel/bpf/syscall.c:1339:7: warning: variable first_key set but not used [-Wunused-but-set-variable] It is never used, so remove it. Reported-by: Hulk Robot Signed-off-by: YueHaibing --- kernel/bpf/syscall.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 0d94d36..c26a714 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1336,7 +1336,6 @@ int generic_map_lookup_batch(struct bpf_map *map, void *buf, *buf_prevkey, *prev_key, *key, *value; int err, retry = MAP_LOOKUP_RETRIES; u32 value_size, cp, max_count; - bool first_key = false; if (attr->batch.elem_flags & ~BPF_F_LOCK) return -EINVAL; @@ -1365,7 +1364,6 @@ int generic_map_lookup_batch(struct bpf_map *map, } err = -EFAULT; - first_key = false; prev_key = NULL; if (ubatch && copy_from_user(buf_prevkey, ubatch, map->key_size)) goto free_buf; -- 2.7.4