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=-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=ham 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 0C087C3404D for ; Wed, 19 Feb 2020 11:23:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DE1EF2465D for ; Wed, 19 Feb 2020 11:23:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727187AbgBSLXO (ORCPT ); Wed, 19 Feb 2020 06:23:14 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:10219 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727046AbgBSLXN (ORCPT ); Wed, 19 Feb 2020 06:23:13 -0500 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id D2C95F7484DAC9A56793; Wed, 19 Feb 2020 19:23:11 +0800 (CST) Received: from huawei.com (10.175.124.28) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.439.0; Wed, 19 Feb 2020 19:23:03 +0800 From: yu kuai To: , , CC: , , , , Subject: [PATCH 2/3] btrfs: remove set but not used variable 'parent' Date: Wed, 19 Feb 2020 19:22:03 +0800 Message-ID: <20200219112203.17075-1-yukuai3@huawei.com> X-Mailer: git-send-email 2.17.2 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.175.124.28] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes gcc '-Wunused-but-set-variable' warning: fs/btrfs/tree-log.c: In function ‘walk_down_log_tree’: fs/btrfs/tree-log.c:2702:24: warning: variable ‘parent’ set but not used [-Wunused-but-set-variable] fs/btrfs/tree-log.c: In function ‘walk_up_log_tree’: fs/btrfs/tree-log.c:2803:26: warning: variable ‘parent’ set but not used [-Wunused-but-set-variable] They are never used, and so can be removed. Signed-off-by: yu kuai --- fs/btrfs/tree-log.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 156beda01b18..19c107be9ef6 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2699,7 +2699,6 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, u64 ptr_gen; struct extent_buffer *next; struct extent_buffer *cur; - struct extent_buffer *parent; u32 blocksize; int ret = 0; @@ -2719,8 +2718,6 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, btrfs_node_key_to_cpu(cur, &first_key, path->slots[*level]); blocksize = fs_info->nodesize; - parent = path->nodes[*level]; - next = btrfs_find_create_tree_block(fs_info, bytenr); if (IS_ERR(next)) return PTR_ERR(next); @@ -2800,12 +2797,6 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans, WARN_ON(*level == 0); return 0; } else { - struct extent_buffer *parent; - if (path->nodes[*level] == root->node) - parent = path->nodes[*level]; - else - parent = path->nodes[*level + 1]; - ret = wc->process_func(root, path->nodes[*level], wc, btrfs_header_generation(path->nodes[*level]), *level); -- 2.17.2