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 Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3D05EC433F5 for ; Mon, 7 Feb 2022 23:03:54 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id CBE9860A97; Mon, 7 Feb 2022 23:03:53 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aaBme8ahKsIx; Mon, 7 Feb 2022 23:03:53 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp3.osuosl.org (Postfix) with ESMTPS id BA99C6059C; Mon, 7 Feb 2022 23:03:52 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 7E2AEC0011; Mon, 7 Feb 2022 23:03:52 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6B666C000B for ; Mon, 7 Feb 2022 23:03:50 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 3A35180BC2 for ; Mon, 7 Feb 2022 23:03:50 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp1.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=intel.com Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jxdwvf_GF4ik for ; Mon, 7 Feb 2022 23:03:49 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by smtp1.osuosl.org (Postfix) with ESMTPS id 0B19580B81 for ; Mon, 7 Feb 2022 23:03:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1644275029; x=1675811029; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZQuX/1pAiBPvBMAccFCq7xa5FLVExUm2Q9ePeODXOtk=; b=hG70KZtenuc33DjqFo+Gs4AbonSyfMMuxFv4uIxWHTVjkHmxV3Ktf9ze 8wqJU+KlPpJPHlmTB0BT8FkWZPNXzkM8o9GkuEl6OC3gb+7khHd2ILbUF l70YoFlVs7KFxArQsw9pVZ/ndmrBzkFQF2GDJauTIdRVR/rDyZxOG0Pgi NXaypAB0pouv0ZhDIYAaxfwAnagB0MSRBNlGUBd3LfLPXOLf+Doy4SHW0 5D7NkkSBoqeSqVzdWi2iRFeCFu5pIgbGFj+eVxkJx5Wd+XLXZiVe6rDJ7 Bc7BshsqEppdEBGDc8A7IwZkmtw/oExhVGmlQZBWaeIumGX4P6BL1JCTt g==; X-IronPort-AV: E=McAfee;i="6200,9189,10251"; a="248774753" X-IronPort-AV: E=Sophos;i="5.88,351,1635231600"; d="scan'208";a="248774753" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Feb 2022 15:03:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,351,1635231600"; d="scan'208";a="540324016" Received: from otcwcpicx3.sc.intel.com ([172.25.55.73]) by orsmga008.jf.intel.com with ESMTP; 07 Feb 2022 15:03:02 -0800 From: Fenghua Yu To: "Thomas Gleixner" , "Dave Hansen" , "Ingo Molnar" , "Borislav Petkov" , "Peter Zijlstra" , "Andy Lutomirski" , "Tony Luck" , "Lu Baolu" , "Joerg Roedel" , Josh Poimboeuf , "Jacob Pan" , "Ashok Raj" , "Ravi V Shankar" Subject: [PATCH v4 02/11] mm: Change CONFIG option for mm->pasid field Date: Mon, 7 Feb 2022 15:02:45 -0800 Message-Id: <20220207230254.3342514-3-fenghua.yu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220207230254.3342514-1-fenghua.yu@intel.com> References: <20220207230254.3342514-1-fenghua.yu@intel.com> MIME-Version: 1.0 Cc: Fenghua Yu , iommu@lists.linux-foundation.org, x86 , linux-kernel X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" This currently depends on CONFIG_IOMMU_SUPPORT. But it is only needed when CONFIG_IOMMU_SVA option is enabled. Change the CONFIG guards around definition and initialization of mm->pasid field. Suggested-by: Jacob Pan Signed-off-by: Fenghua Yu Reviewed-by: Tony Luck Reviewed-by: Thomas Gleixner --- v4: - Add "Reviewed-by: Thomas Gleixner " (Thomas). v2: - Change condition to more accurate CONFIG_IOMMU_SVA (Jacob and Tony) include/linux/mm_types.h | 2 +- kernel/fork.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 5140e5feb486..c5cbfd7915ad 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -631,7 +631,7 @@ struct mm_struct { #endif struct work_struct async_put_work; -#ifdef CONFIG_IOMMU_SUPPORT +#ifdef CONFIG_IOMMU_SVA u32 pasid; #endif } __randomize_layout; diff --git a/kernel/fork.c b/kernel/fork.c index d75a528f7b21..6ee7551d3bd2 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1021,7 +1021,7 @@ static void mm_init_owner(struct mm_struct *mm, struct task_struct *p) static void mm_init_pasid(struct mm_struct *mm) { -#ifdef CONFIG_IOMMU_SUPPORT +#ifdef CONFIG_IOMMU_SVA mm->pasid = INIT_PASID; #endif } -- 2.35.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu