From patchwork Tue Jul 18 10:55:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13317008 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 636CEC04A94 for ; Tue, 18 Jul 2023 10:56:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BFA3E10E313; Tue, 18 Jul 2023 10:55:58 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id B1D8510E313; Tue, 18 Jul 2023 10:55:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689677747; x=1721213747; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2kx4I+YnPJxcdyT5PnLXXnGZK3e6jUr7CMAjY67u6z4=; b=ktJGzrdOGk9Uzq4H98CdfEPqU4IvjWoGo7a+bWN0tIKoq6xdbZ52EGz5 CrXZe6x56fbLIT0S/aqFXg+3m/Wpc4izcXOh6W5nFK+8WgUzN/lL7oE4D LbyKQUOcZ3wdFQ45sVmVJMpifYhva96VTwDqgWlEGcok+wjY3VWVGnwvT CBIA853Gz5hbAuqhuS4yFfwKGB53Z7fL2WV4exK1gou4s7wp8MQ/1CjxI 6ZqoQXROGVXGZNaog3vystm0XpKZs+ov/AUrm8tTtmYDPhDZZW2KIZe1v mcq2F96WesJST29tAcRE5f5HDuqcZUIB0d0TPdR3PKZ/D0N24vD0iEbnl w==; X-IronPort-AV: E=McAfee;i="6600,9927,10774"; a="452553577" X-IronPort-AV: E=Sophos;i="6.01,214,1684825200"; d="scan'208";a="452553577" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2023 03:55:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10774"; a="673863811" X-IronPort-AV: E=Sophos;i="6.01,214,1684825200"; d="scan'208";a="673863811" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga003.jf.intel.com with ESMTP; 18 Jul 2023 03:55:47 -0700 From: Yi Liu To: alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com Date: Tue, 18 Jul 2023 03:55:38 -0700 Message-Id: <20230718105542.4138-7-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230718105542.4138-1-yi.l.liu@intel.com> References: <20230718105542.4138-1-yi.l.liu@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v10 06/10] vfio: Mark cdev usage in vfio_device X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mjrosato@linux.ibm.com, jasowang@redhat.com, xudong.hao@intel.com, zhenzhong.duan@intel.com, peterx@redhat.com, terrence.xu@intel.com, chao.p.peng@linux.intel.com, linux-s390@vger.kernel.org, yi.l.liu@intel.com, kvm@vger.kernel.org, lulu@redhat.com, yanting.jiang@intel.com, joro@8bytes.org, nicolinc@nvidia.com, yan.y.zhao@intel.com, intel-gfx@lists.freedesktop.org, eric.auger@redhat.com, intel-gvt-dev@lists.freedesktop.org, yi.y.sun@linux.intel.com, clegoate@redhat.com, cohuck@redhat.com, shameerali.kolothum.thodi@huawei.com, suravee.suthikulpanit@amd.com, robin.murphy@arm.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This can be used to differentiate whether to report group_id or devid in the revised VFIO_DEVICE_GET_PCI_HOT_RESET_INFO ioctl. At this moment, no cdev path yet, so the vfio_device_cdev_opened() helper always returns false. Reviewed-by: Kevin Tian Reviewed-by: Jason Gunthorpe Tested-by: Yanting Jiang Tested-by: Terrence Xu Tested-by: Zhenzhong Duan Signed-off-by: Yi Liu --- include/linux/vfio.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 2c137ea94a3e..2a45853773a6 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -139,6 +139,11 @@ int vfio_iommufd_emulated_attach_ioas(struct vfio_device *vdev, u32 *pt_id); ((int (*)(struct vfio_device *vdev, u32 *pt_id)) NULL) #endif +static inline bool vfio_device_cdev_opened(struct vfio_device *device) +{ + return false; +} + /** * struct vfio_migration_ops - VFIO bus device driver migration callbacks *