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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58B2EC0015E for ; Thu, 15 Jun 2023 11:39:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344098AbjFOLjJ (ORCPT ); Thu, 15 Jun 2023 07:39:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344000AbjFOLim (ORCPT ); Thu, 15 Jun 2023 07:38:42 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A6E92967; Thu, 15 Jun 2023 04:38:05 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DED4F63948; Thu, 15 Jun 2023 11:38:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46538C433CB; Thu, 15 Jun 2023 11:38:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686829084; bh=wt89E2zvd//pr6N38PwZsdGNGiF/Mbbhvn6+II2neb0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fFNA74QQ65QpvYcIeSKAsNQmM3PImjHGXvGjX+fwHW7QKkUuDiPw9PlUFY3ezubhl Jw56CAWIMkBZelAJc++2MsILk87qhXqygIjqaVd/DaWBEvkx+fxBG0zXpxAbEpk2vK cGGzpVoC/Ic86YMbXZ16wgbVo93HND4WV/OIilTkqDjTjuUJ/37B7vfF0o2eZFVpGR bG+CFtow2hzz5nGMTgWSwA/gdlXdgCi1mxiraC+cZp+RNhmWl7wNgRLdkU0sdajJwG XU8vvL7cNd7z2fuqLQa1LLb//AwEDz0ReWXd8uFN0toZC4GWKJDKJd5akJksklKTtz 8P5NpG6xhjQ+w== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Shida Zhang , k2ci , Anand Jain , David Sterba , Sasha Levin , clm@fb.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org Subject: [PATCH AUTOSEL 6.3 13/19] btrfs: fix an uninitialized variable warning in btrfs_log_inode Date: Thu, 15 Jun 2023 07:37:13 -0400 Message-Id: <20230615113719.648862-13-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230615113719.648862-1-sashal@kernel.org> References: <20230615113719.648862-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.3.8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shida Zhang [ Upstream commit 8fd9f4232d8152c650fd15127f533a0f6d0a4b2b ] This fixes the following warning reported by gcc 10.2.1 under x86_64: ../fs/btrfs/tree-log.c: In function ‘btrfs_log_inode’: ../fs/btrfs/tree-log.c:6211:9: error: ‘last_range_start’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 6211 | ret = insert_dir_log_key(trans, log, path, key.objectid, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 6212 | first_dir_index, last_dir_index); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../fs/btrfs/tree-log.c:6161:6: note: ‘last_range_start’ was declared here 6161 | u64 last_range_start; | ^~~~~~~~~~~~~~~~ This might be a false positive fixed in later compiler versions but we want to have it fixed. Reported-by: k2ci Reviewed-by: Anand Jain Signed-off-by: Shida Zhang Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Sasha Levin --- fs/btrfs/tree-log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 200cea6e49e51..b91fa398b8141 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -6163,7 +6163,7 @@ static int log_delayed_deletions_incremental(struct btrfs_trans_handle *trans, { struct btrfs_root *log = inode->root->log_root; const struct btrfs_delayed_item *curr; - u64 last_range_start; + u64 last_range_start = 0; u64 last_range_end = 0; struct btrfs_key key; -- 2.39.2