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=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 1B6C6C433ED for ; Tue, 27 Apr 2021 19:23:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EC77D60BBB for ; Tue, 27 Apr 2021 19:23:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238597AbhD0TYF (ORCPT ); Tue, 27 Apr 2021 15:24:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35438 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238621AbhD0TX5 (ORCPT ); Tue, 27 Apr 2021 15:23:57 -0400 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BC56C061574 for ; Tue, 27 Apr 2021 12:23:12 -0700 (PDT) Received: by mail-ed1-x536.google.com with SMTP id z5so34816661edr.11 for ; Tue, 27 Apr 2021 12:23:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=4Th6CHuv/BavKWVhjOR3C+azFZHY5/Y0kXS0Bq1FxIQ=; b=MAkUDvfDv1fDJ8jrD9KnXjvibaAseAZGPYEgEMmkYM5dPkkGDluw+a3Q5SN0GZSevJ yf12GOPP+gELEekqslMIapbSEqXSQAwwO4OFsT0Vbi4npBRMCfZdoB7YhGvScPveSBJM 3GOh0GZuI1K/Ztyy+N0Yo3U18ntz3EWM+faVkw6SPzBoPWcSNDd2UWNRXxCXjbR9CeQf o6Ytxjr1cVOt8NYaxDmd/bfMon8BpPulqKmYkCr/vThE9m4Ir2+TUuiY7KMibVLfXO8v VDUM7QNiyXzZ7Lzuw/C+KY5IsWEo5ushIgw7Xg8WMuuOohiP+jLBvfSZKvgLdFTAj3c+ Bg+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=4Th6CHuv/BavKWVhjOR3C+azFZHY5/Y0kXS0Bq1FxIQ=; b=Z3ipZ8pKhrW6SYqcYegxV3VRn6ffYI+yeNvqcfAB66GrT7aZk8uK986WuOs2tED2HJ fW07cuGs65etrHGxn3eJuxctifoyIOFqTI8Bt4ViSskHLeqL2NOaoJ/vU0fCRUhDUjsJ KY7PDOb3NmKtURm6ql2xoJzi6Ni6R56NOChJ66irQc7gknZNeP+kayN8UXYUUulhvYZJ cfkgHXQOAsPhJgx70M4WhdjF9he8M19SkYSBlrJ9lAGfJoyadguJMqlIi1PWsP6w1R7t HHpSiJ+bFBQZr9CP+r/h+6UpXJ1pAqFhwHteaYfmfRZ9PC3itLTxLmSQmkn84zzHQ6qA 0opA== X-Gm-Message-State: AOAM5334+KpWYkKv3HgqgWSsweiJYW9pTkb98tHDBYbHFlgvxverdHot uCCv2xc9i4//locADbNcR4A= X-Google-Smtp-Source: ABdhPJxIFTCDFgo4wD/oqaxCjCAZbxVMIqpuHqbhWBCn1bB5mhx5MO7IupMt4UpkJhCWKteEYHPZyA== X-Received: by 2002:a05:6402:682:: with SMTP id f2mr6280206edy.297.1619551391306; Tue, 27 Apr 2021 12:23:11 -0700 (PDT) Received: from mail ([2a02:a03f:b7fe:f700:a991:30f3:a399:4cad]) by smtp.gmail.com with ESMTPSA id e16sm3068837edu.94.2021.04.27.12.23.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Apr 2021 12:23:10 -0700 (PDT) Date: Tue, 27 Apr 2021 21:23:09 +0200 From: Luc Van Oostenryck To: Linus Torvalds Cc: Thomas Gleixner , kernel test robot , Balbir Singh , kbuild-all@lists.01.org, Sparse Mailing-list Subject: Re: [tglx-devel:x86/l1dflush 7/9] arch/x86/mm/tlb.c:354:13: sparse: sparse: incorrect type in initializer (different address spaces) Message-ID: <20210427192309.4xlodmvsppcdoa4l@mail> References: <202104271144.G4fgnYlt-lkp@intel.com> <87r1iwnsha.ffs@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org On Tue, Apr 27, 2021 at 10:00:48AM -0700, Linus Torvalds wrote: > On Mon, Apr 26, 2021 at 11:37 PM Thomas Gleixner wrote: > > > > > > 354 if (this_cpu_read(cpu_info.smt_active)) { > > > > That's a valid construct and the kernel of full of percpuvar.member reads/writes. > > Hmm. "cpu_info" doesn't seem to be marked as a percpu data structure. > > Is this perhaps a UP config? Because we have: Yes, most probably. Just to be sure, I checked with i386_defconfig (which is SMP) and sparse doesn't complain (but then does if CONFIG_SMP is set to 'n'). -- Luc