Received: by 2002:a25:ab43:0:0:0:0:0 with SMTP id u61csp4629012ybi; Tue, 11 Jun 2019 09:42:23 -0700 (PDT) X-Google-Smtp-Source: APXvYqyrAool4nUXgYR4aSFZ47qAMv7raAF30PGkikS61YiGon4tFDBZGeULj0wS7KEVad+vh6UB X-Received: by 2002:aa7:8248:: with SMTP id e8mr41681997pfn.155.1560271343843; Tue, 11 Jun 2019 09:42:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560271343; cv=none; d=google.com; s=arc-20160816; b=OitfNnDvQzw8i5wp6Ga3rAFYVmVnPjKnM1jM85s4Eoco2Hi/Z3NgAweslpIGpAMBsw tD/raGGaHZKVrBe+8pfkPOTU9LWF/957GHvUb7jyfCXQ/3za4Hzu4nB6U+mdsAZ1Maw6 iqvWPmRdo9Tx0mV/SoTFbvclsD/cSsmzU3lQT/UMOP/epVMlLhYUjsD1wnJ+YvL+PZQ7 oJKYKpxWyuSx9bujgL3zwOd5u+YmqbW0s9ay82zzg4Iea852Pur2aCAHZgrMQDJ859+L Bp1fX2uhEjhe7j+5GP8QYQ8TSY0oxkTE26aCxe3FiCyc+ibwjPVXTRVB1B8jp+ltwPHj Aa+g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=uVCNdIVqy31Q4OIplkbDDIgjKN2YHM8I7J7hzpvDKsg=; b=mZ9d/ng2DExrSoqXDGUj4sz54SYflVk4w0BOCo/RP18MvR9GcNXBpTrg52SkXiVObZ EB5i75GoxE/NgXSK1ULdpXC5gZEEvLRrGdH7Igf6fB2zrVC6q1k6GURncOBpwZ9P2BJq 0O2yCPwv1f/HqMUhN+c8QE1ZBQoffeV5TxcgnwPRTqeySgv/Kwr2XlNCfUVF8zHBbB1r bdnfjNDruN9nK9GlhGsggey91bY+6tR1K7AVlV3EVXWMzhvFAc5xI5H4LIKWAT1mnrLT WD8oS8z5xjloFMgyhwQ0uN2/SXM8FZaA1KadMJ34dVwl7xCIGC1C1Ii0NDT+AqbuVI2o m56w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q2si2810734pjq.89.2019.06.11.09.42.09; Tue, 11 Jun 2019 09:42:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391280AbfFKPlQ (ORCPT + 99 others); Tue, 11 Jun 2019 11:41:16 -0400 Received: from foss.arm.com ([217.140.110.172]:36298 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390823AbfFKPlP (ORCPT ); Tue, 11 Jun 2019 11:41:15 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3BA47337; Tue, 11 Jun 2019 08:41:15 -0700 (PDT) Received: from c02tf0j2hf1t.cambridge.arm.com (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 793AC3F246; Tue, 11 Jun 2019 08:41:11 -0700 (PDT) Date: Tue, 11 Jun 2019 16:41:06 +0100 From: Catalin Marinas To: Masayoshi Mizuma Cc: Will Deacon , linux-arm-kernel@lists.infradead.org, Masayoshi Mizuma , linux-kernel@vger.kernel.org, Hidetoshi Seto , Zhang Lei Subject: Re: [PATCH 2/2] arm64/mm: show TAINT_CPU_OUT_OF_SPEC warning if the cache size is over the spec. Message-ID: <20190611154105.GE10165@c02tf0j2hf1t.cambridge.arm.com> References: <20190611151731.6135-1-msys.mizuma@gmail.com> <20190611151731.6135-3-msys.mizuma@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190611151731.6135-3-msys.mizuma@gmail.com> User-Agent: Mutt/1.11.2 (2019-01-07) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 11, 2019 at 11:17:31AM -0400, Masayoshi Mizuma wrote: > From: Masayoshi Mizuma > > Show the warning and taints as TAINT_CPU_OUT_OF_SPEC if the cache line > size is greater than the maximum. In general the "out of spec" part is a misnomer, we tend to apply it to CPU features that are not supported by the kernel rather than some CPU feature not compliant with the architecture (we call the latter errata). I suggest you drop this patch. -- Catalin