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[209.85.160.49]) by smtp.gmail.com with ESMTPSA id d15-20020a056870d28f00b00132218cb7afsm638648oae.42.2022.10.01.09.21.09 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 01 Oct 2022 09:21:09 -0700 (PDT) Received: by mail-oa1-f49.google.com with SMTP id 586e51a60fabf-12803ac8113so8724865fac.8 for ; Sat, 01 Oct 2022 09:21:09 -0700 (PDT) X-Received: by 2002:a05:6870:c888:b0:12c:7f3b:d67d with SMTP id er8-20020a056870c88800b0012c7f3bd67dmr1731928oab.229.1664641269015; Sat, 01 Oct 2022 09:21:09 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Linus Torvalds Date: Sat, 1 Oct 2022 09:20:53 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [oliver.sang@intel.com: [cpumask] b9a7ecc71f: WARNING:at_include/linux/cpumask.h:#__is_kernel_percpu_address] To: Yury Norov Cc: lkp@lists.01.org, lkp@intel.com, Linux Memory Management List , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=A5GmFfEb; spf=pass (imf21.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.167.178 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1664641272; a=rsa-sha256; cv=none; b=MWZrGQkcY+kVZhmTbM+zQUDPFzr+nF2Kt/oKaepkxiGNiGKcjMbTGWJFEM0leWIJKrta6u v5E42rIjLlYKwUexkTf+onCLwbo55Mb+Fn7/1Z1AzwWdDbEI+XGw132+Pf0VLYoRqkQ0xm B+MZ0Pp14vOXsiNeI/Trq9TBGmbELRQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1664641272; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=BjGEI2Q3qIywabIEfO5bHYshDCg/ZVvlmZqpK+c+QVo=; b=qKdNoU+FVBxVrEkoPMOEAGTMNcpmfrMa4Kk14ctV0hO+4/w58lC7OYbO1bHF2FIAWtE+kp HGXSX40x8pqz6kQntJpCiuWtdv1EUjYy3DnIXDlQ2spcGhGnecrgeRie14MyjHXANLIJQQ M2eLByIGE0ue8qATPPmhcKxvKVn+Ubg= Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=A5GmFfEb; spf=pass (imf21.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.167.178 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none X-Stat-Signature: j144s1ci8rmen1gr8srks9d8zmm7efph X-Rspamd-Queue-Id: A4E921C0005 X-Rspam-User: X-Rspamd-Server: rspam11 X-HE-Tag: 1664641272-859815 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 Fri, Sep 30, 2022 at 6:51 PM Yury Norov wrote: > > The commit b9a7ecc71fe582e ("cpumask: fix checking valid cpu range") > fixes broken cpumask_check(), which for now doesn't warn user when it > should. After the fix, I observed many false-positive warnings which > were addressed in the following patches. Are all the false positives fixed? I suspect that to avoid any automation noise, you should just rebase so that the fixes come first. Otherwise we'll end up wasting a lot of time on the noise. This is not that different from introducing new buil;d-time warnings: the things they point out need to be fixed before the warning can be integrated, or it causes bisection problems. Linus