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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA8ABC4321A for ; Tue, 11 Jun 2019 15:41:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9596F2080A for ; Tue, 11 Jun 2019 15:41:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391402AbfFKPlQ (ORCPT ); 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 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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, T_DKIMWL_WL_HIGH,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A624CC4321A for ; Tue, 11 Jun 2019 15:41:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7B33E2080A for ; Tue, 11 Jun 2019 15:41:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ag2AD328" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B33E2080A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Wi3jqet0imlM2hWSUPf5L+2G8amLz01G9+hS82FMj24=; b=Ag2AD328NYJGKQ vYX/mKegGH6bQKeqc3A9URS24csyW532JrS3Ao7FnXS4ED40Pyf/VonqEqVKHtckQ61AgVNzcUjI8 TlzvqD8eQTJjwrenr63VqfACrQOhxpiqEtZ9EWqCttVYUrTPUXV0etCzYezwO0MgfL3yxXRxZKeE2 zmD61jCySYJprGbFL0DMmwE7zT9549wm0hAWBwG/EVdB5O0Mz6I8TV6g5zO/m2lFbHRD9LDPYeuqw Boc08K30XMtGHGozOPgRpxhZUVhi9gblCYtfPxoUBnYC/sstF5xB7MWbtFK0pqp0nqXXxwuX4b69X 6P6MsRRJmMsINqNP/Ffw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1haiti-0000Pp-VS; Tue, 11 Jun 2019 15:41:18 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1haitg-0000Ox-LA for linux-arm-kernel@lists.infradead.org; Tue, 11 Jun 2019 15:41:17 +0000 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 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-Disposition: inline In-Reply-To: <20190611151731.6135-3-msys.mizuma@gmail.com> User-Agent: Mutt/1.11.2 (2019-01-07) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190611_084116_737616_C16C27B4 X-CRM114-Status: UNSURE ( 8.31 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Masayoshi Mizuma , Hidetoshi Seto , Will Deacon , linux-kernel@vger.kernel.org, Zhang Lei , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel