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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8152CC433F5 for ; Wed, 8 Dec 2021 23:23:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9AA916B0071; Wed, 8 Dec 2021 18:22:50 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 959526B0073; Wed, 8 Dec 2021 18:22:50 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 820586B0074; Wed, 8 Dec 2021 18:22:50 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0064.hostedemail.com [216.40.44.64]) by kanga.kvack.org (Postfix) with ESMTP id 6FFC96B0071 for ; Wed, 8 Dec 2021 18:22:50 -0500 (EST) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 27CDB1859E339 for ; Wed, 8 Dec 2021 23:22:40 +0000 (UTC) X-FDA: 78896203680.02.EBAA7A2 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by imf01.hostedemail.com (Postfix) with ESMTP id 4DD6940005 for ; Wed, 8 Dec 2021 23:22:38 +0000 (UTC) Received: from mail.kernel.org (unknown [198.145.29.99]) (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 C0E04CE2419; Wed, 8 Dec 2021 23:22:34 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 5B10C603E4; Wed, 8 Dec 2021 23:22:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1639005752; bh=cdxhAYj8MQcoZgyrU33zRl/+PRNvuQhTA7h8Q50iYn8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=nP/IgHvXPJP6mYTth7759uXpsLAdODzwoqAg+c/AieGyZFurmCAMD8DGsTrlBQDa3 u3hLQBywA9LA9IPpcJI3jjm8RZrshiwtz7nJAuv25Bb3Gav90yBEqiCXMDCvllhik0 CnxGUSSjHIb/mbtN8Mxnl+k9zfFIMkHJ0KqWQ2q8= Date: Wed, 8 Dec 2021 15:22:30 -0800 From: Andrew Morton To: kernel test robot Cc: Linux Memory Management List , Kefeng Wang Subject: Re: [linux-next:master] BUILD REGRESSION 4eee8d0b64ecc3231040fa68ba750317ffca5c52 Message-Id: <20211208152230.12f62b8da151ba01459bf685@linux-foundation.org> In-Reply-To: <61b11623.QTNSDvKleE0IIbXn%lkp@intel.com> References: <61b11623.QTNSDvKleE0IIbXn%lkp@intel.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: 5b5yinkqbr1ph33xpbku6mbk49y3865s Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b="nP/IgHvX"; spf=pass (imf01.hostedemail.com: domain of akpm@linux-foundation.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 4DD6940005 X-HE-Tag: 1639005758-741665 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, 09 Dec 2021 04:31:31 +0800 kernel test robot wrote: > mm/vmalloc.c:3109 __vmalloc_node_range() warn: bitwise AND condition is false here Thanks to "mm: defer kmemleak object creation of module_alloc()". +#if defined(CONFIG_KASAN) && (defined(CONFIG_KASAN_GENERIC) || \ + defined(CONFIG_KASAN_SW_TAGS)) && !defined(CONFIG_KASAN_VMALLOC) +#define VM_DEFER_KMEMLEAK 0x00000800 /* defer kmemleak object creation */ +#else +#define VM_DEFER_KMEMLEAK 0 +#endif if (!(vm_flags & VM_DEFER_KMEMLEAK)) I don't feel a need to do anything about this - the code is legitimate and idiomatic. Doesn't this warning occur quite a lot?