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[209.132.180.67]) by mx.google.com with ESMTP id b18si2484595edc.390.2019.11.07.13.28.36; Thu, 07 Nov 2019 13:28:59 -0800 (PST) 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; dkim=pass header.i=@gmail.com header.s=20161025 header.b=aMxarZDM; 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; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726636AbfKGV1w (ORCPT + 99 others); Thu, 7 Nov 2019 16:27:52 -0500 Received: from mail-io1-f65.google.com ([209.85.166.65]:45471 "EHLO mail-io1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725870AbfKGV1v (ORCPT ); Thu, 7 Nov 2019 16:27:51 -0500 Received: by mail-io1-f65.google.com with SMTP id v17so2879318iol.12 for ; Thu, 07 Nov 2019 13:27:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=eK6q6zrwrUz/2YQcdvxZ3HcYVjvB9LVJa0VW9PrlQgw=; b=aMxarZDMn8/+ZTwLmr9xiJrCEyYnzUCeulkISZ+VWIkgM2+Tvg/SIBgLvqCdvgYaro 7TWwstCis8HR1f+02LH8TxqFrrnfPmbocmfts3bNK6vn+paq2D6upM3h2Dh8ESWimLfR 7KDp2SG/mmMF+UO1dGo2RVWC0kCR+t0kBzEWplgAndmgir7SdBPEgg+suEYnDu/q2+9R Fxour4E/NUcSYDTcC8UOg8KfyYNM792kAl1V5PMVpJpul8vApR8iDeS3A864PM5hz26l ceuQ/OlYDJHb0383d+9hMlyudwSg14ciUZ763g7KhMhGHDfIGmhgqb6gfJ22vYJaSefe BYfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=eK6q6zrwrUz/2YQcdvxZ3HcYVjvB9LVJa0VW9PrlQgw=; b=pNu0MA1zkiJzgeZwHO6jHcdFXM0WmKP40jaqc2wMxg6mcI7HUYwDIxxEjn1aYv0W3M jDmk9VaGLR1XuMHA1xjtBWQVmTerEp/omX/mXhCP55Q/2gy92kr+EPYmhStjoC5W7cyb 3BCPJcphUrbre8sK/GX4rMolgASBt8FGV4tTPTtpHU2XzUt8owZJaR6hI07gyA0MxFcR nzZS5k2kPiM57EXFLEzjeMozHhTJddp0dIGqwje1JZZ/Qc5uYsN7fu5+snpCouoK4rAI 1xBtiUkX8+HNJvJdNoEBNKWdR0yhI7MbpuZcMwhPIP9ISbl5vlREkHofuXOMHSah5mdR Jdkw== X-Gm-Message-State: APjAAAVN/jqHYRiElifotzX4JzN42H5LpoLMroKXgP51jwq+26z+1I6F h17nJVOoLCh5ixZEGTf+OFspF5dKesquPRK51m7IFA== X-Received: by 2002:a6b:e403:: with SMTP id u3mr6358356iog.130.1573162070942; Thu, 07 Nov 2019 13:27:50 -0800 (PST) MIME-Version: 1.0 References: <20191107205914.10611-1-deepa.kernel@gmail.com> In-Reply-To: <20191107205914.10611-1-deepa.kernel@gmail.com> From: Deepa Dinamani Date: Thu, 7 Nov 2019 13:27:35 -0800 Message-ID: Subject: Re: [PATCH] intel-iommu: Turn off translations at shutdown To: joro@8bytes.org, Linux Kernel Mailing List Cc: David Woodhouse , iommu@lists.linux-foundation.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 7, 2019 at 12:59 PM Deepa Dinamani wrote: > +static void intel_iommu_shutdown(void) > + if (no_iommu || dmar_disabled) > + return; This check is actually not required here, as the handler is only installed after these have been checked in intel_iommu_init. I can remove this in the next version of the patch, but I'll wait a few days for comments. -Deepa