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 DAB82C4332F for ; Thu, 10 Nov 2022 00:24:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230072AbiKJAY6 (ORCPT ); Wed, 9 Nov 2022 19:24:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229802AbiKJAY5 (ORCPT ); Wed, 9 Nov 2022 19:24:57 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFCFA28E36 for ; Wed, 9 Nov 2022 16:24:56 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 48964CE1FF4 for ; Thu, 10 Nov 2022 00:24:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7CD4AC433D7; Thu, 10 Nov 2022 00:24:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1668039893; bh=MAc/bDx4bUwFYtB+zFwoMpbtcB5xpqMrs55kb8jfKBg=; h=Date:To:From:Subject:From; b=PyUUwYjtdTnI3KJ6vK00Hg3u2Dy7+MonjPvlIa8RxbtatqPf982WrkbQraPBgwNnh 35LXxk1TDYLnT/TAIOHTXprZxdVrfEYwK80WnYgxqKNZ1mP5fLs7uYcuJRmHqE/vWy CDkTsEJ2lu3mmGzOdUT9/zKv9SjbHjCchZ/gB0mo= Date: Wed, 09 Nov 2022 16:24:52 -0800 To: mm-commits@vger.kernel.org, willy@infradead.org, rongtao@cestc.cn, akpm@linux-foundation.org From: Andrew Morton Subject: + radix-tree-test-suite-fix-uninitialized-variable-compilation-warning.patch added to mm-nonmm-unstable branch Message-Id: <20221110002453.7CD4AC433D7@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: lib/radix-tree.c: fix uninitialized variable compilation warning has been added to the -mm mm-nonmm-unstable branch. Its filename is radix-tree-test-suite-fix-uninitialized-variable-compilation-warning.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/radix-tree-test-suite-fix-uninitialized-variable-compilation-warning.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Rong Tao Subject: lib/radix-tree.c: fix uninitialized variable compilation warning Date: Wed, 9 Nov 2022 22:34:25 +0800 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); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Link: https://lkml.kernel.org/r/tencent_DF74099967595DCEA93CBDC28D062026180A@qq.com Signed-off-by: Rong Tao Cc: Matthew Wilcox Signed-off-by: Andrew Morton --- lib/radix-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/radix-tree.c~radix-tree-test-suite-fix-uninitialized-variable-compilation-warning +++ a/lib/radix-tree.c @@ -1029,7 +1029,7 @@ void *radix_tree_tag_clear(struct radix_ { struct radix_tree_node *node, *parent; unsigned long maxindex; - int offset; + int offset = 0; radix_tree_load_root(root, &node, &maxindex); if (index > maxindex) _ Patches currently in -mm which might be from rongtao@cestc.cn are tools-vm-page_owner-ignore-page_owner_sort-binary.patch radix-tree-test-suite-fix-uninitialized-variable-compilation-warning.patch