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 B2E88C433FE for ; Wed, 9 Nov 2022 14:34:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231577AbiKIOei (ORCPT ); Wed, 9 Nov 2022 09:34:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231329AbiKIOef (ORCPT ); Wed, 9 Nov 2022 09:34:35 -0500 Received: from out203-205-221-173.mail.qq.com (out203-205-221-173.mail.qq.com [203.205.221.173]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98E1962E8 for ; Wed, 9 Nov 2022 06:34:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foxmail.com; s=s201512; t=1668004469; bh=5FPNvUDVnygnNIZLQn/nX4ESf6kHJO8O/PowCmiXrIo=; h=From:To:Cc:Subject:Date; b=QepxEicePqkiKr3ZGqAtObvLXLLRHf1yT+oBLCNzuhOyTNeL3e+0j7gcCA3flk6fz LD3x9/D+JupCumMuXoUl1RvGNrfHHKm/aoGJ7wWJCaoPFYb+C/hLsZGtbfZ2+d0B6N FLKx3EtposmY0WgCx6VKj9aKhZZL0A3ds3uUZpYA= Received: from localhost.localdomain ([111.199.191.46]) by newxmesmtplogicsvrsza2-0.qq.com (NewEsmtp) with SMTP id 89B3FE92; Wed, 09 Nov 2022 22:34:27 +0800 X-QQ-mid: xmsmtpt1668004467t6jr7zf75 Message-ID: X-QQ-XMAILINFO: NH9s7OfyllRGoP/bX5ztaWlA46OR9F/isK6QAq11KSfp8LpRrHJuginpx9KjVr /xbZ0MELzderPjctl6Jt3kxFHEpG10/oG3Wn0WLTwZoVRyvU43kGw0QSAbwd6tLdGV88dMmdFIXV xmqnqGq+uLWvzDvYovuMzDOpiRUPjnTmwc6F5kaGlRTF43kKLljpQoDCNl/dg7gM3MjXcP6p0hio F/3/QXYakfkNtexG7aUbEfzfCNZLK7Mvd2qk66Z4yBo0f/EkeSXDd5WZjhRYHEbDR7JE/ynoqbs7 /TnNnk8Py+dS1ylApoHZqdiHmrHEK9Ds/uqqx2d2fXK4WhUck+EoPDVkP7U0xPCZo4pOl1Elz8LP s4mWGZR4RPv730AZWZlOv65cXhLnS0bigBwP+jUA0ZGyttpeU0eMHlSGWcFZRobc2YrCkyAwKQ4f iC1Ky5PslDO/+Dlp7Ik5HajCO8I6yETnGdUWXZbyj2NXWmn6MIoMO5HGCRnBXzIyA4xHM3J8JJO2 hY595VvM1YT6R1imTTXeqN64oh+gBaXDyL4iX2B+g4heCpwCvbK9ZqD3BWA7aEZQVQOlpdteXmyX WS+xzP+tlvEDXyPvNIfSY5oISY/l2EVWZZz96iVtA2aGeRe/tyzZr82GhLjsA+Iqokl2kjlwI7as EyzVqGe6DHG+rj20CmQsRmhLO1fcf5vqVdg30ACijPWFMCoqldA2qG8Nr/M/IFEjoUU5Jl5FvWEw aBRvFW4v6ZGWnlXd84/Ppas/8o5qxtJ/NfqJ1ezM6asQzzwzabHteWfhLEjex/ujHDJusOBJV0PA oXUh4KgG30kkfYh81vEvuaO330LyxotCx7BAtIfcR53/s6J4IwWgQ7xVCyRCZcjmO0cfXETrdHHk dlsbZb/SXE9Q9T/NYMkTYwHMVHxnJJ4H2PXB0cTOZgt/cN4UUu8AtYJGY40aODhQs4RwgoBASIL+ 2Q0yEt/gx8R8uEGF+eOwT1Nv3hFgPULFgdT7SUxZU= From: Rong Tao To: akpm@linux-foundation.org Cc: Rong Tao , wuchi , linux-kernel@vger.kernel.org (open list) Subject: [PATCH] radix tree test suite: Fix uninitialized variable compilation warning Date: Wed, 9 Nov 2022 22:34:25 +0800 X-OQ-MSGID: <20221109143425.25732-1-rtoax@foxmail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rong Tao We need to set an initial value for offset to eliminate compilation warning. How to reproduce warning: $ make -C tools/testing/radix-tree radix-tree.c: In function ‘radix_tree_tag_clear’: radix-tree.c:1046:17: warning: ‘offset’ may be used uninitialized in this function [-Wmaybe-uninitialized] 1046 | node_tag_clear(root, parent, tag, offset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Rong Tao --- lib/radix-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 3c78e1e8b2ad..049ba132f7ef 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -1029,7 +1029,7 @@ void *radix_tree_tag_clear(struct radix_tree_root *root, { struct radix_tree_node *node, *parent; unsigned long maxindex; - int offset; + int offset = 0; radix_tree_load_root(root, &node, &maxindex); if (index > maxindex) -- 2.31.1