From patchwork Thu Nov 7 16:08:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Parav Pandit X-Patchwork-Id: 11233315 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F0C4714E5 for ; Thu, 7 Nov 2019 16:09:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 93A65218AE for ; Thu, 7 Nov 2019 16:09:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730151AbfKGQJT (ORCPT ); Thu, 7 Nov 2019 11:09:19 -0500 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:53579 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2389548AbfKGQJS (ORCPT ); Thu, 7 Nov 2019 11:09:18 -0500 Received: from Internal Mail-Server by MTLPINE1 (envelope-from parav@mellanox.com) with ESMTPS (AES256-SHA encrypted); 7 Nov 2019 18:09:13 +0200 Received: from sw-mtx-036.mtx.labs.mlnx (sw-mtx-036.mtx.labs.mlnx [10.9.150.149]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id xA7G8d4K007213; Thu, 7 Nov 2019 18:09:11 +0200 From: Parav Pandit To: alex.williamson@redhat.com, davem@davemloft.net, kvm@vger.kernel.org, netdev@vger.kernel.org Cc: saeedm@mellanox.com, kwankhede@nvidia.com, leon@kernel.org, cohuck@redhat.com, jiri@mellanox.com, linux-rdma@vger.kernel.org, Parav Pandit Subject: [PATCH net-next 10/19] vfio/mdev: Introduce an API mdev_alias Date: Thu, 7 Nov 2019 10:08:25 -0600 Message-Id: <20191107160834.21087-10-parav@mellanox.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20191107160834.21087-1-parav@mellanox.com> References: <20191107160448.20962-1-parav@mellanox.com> <20191107160834.21087-1-parav@mellanox.com> MIME-Version: 1.0 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Introduce an API mdev_alias() to provide access to optionally generated alias. Reviewed-by: Cornelia Huck Signed-off-by: Parav Pandit --- drivers/vfio/mdev/mdev_core.c | 12 ++++++++++++ include/linux/mdev.h | 1 + 2 files changed, 13 insertions(+) diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c index c8cd40366783..9eec556fbdd4 100644 --- a/drivers/vfio/mdev/mdev_core.c +++ b/drivers/vfio/mdev/mdev_core.c @@ -517,6 +517,18 @@ struct device *mdev_get_iommu_device(struct device *dev) } EXPORT_SYMBOL(mdev_get_iommu_device); +/** + * mdev_alias: Return alias string of a mdev device + * @mdev: Pointer to the mdev device + * mdev_alias() returns alias string of a mdev device if alias is present, + * returns NULL otherwise. + */ +const char *mdev_alias(struct mdev_device *mdev) +{ + return mdev->alias; +} +EXPORT_SYMBOL(mdev_alias); + static int __init mdev_init(void) { int ret; diff --git a/include/linux/mdev.h b/include/linux/mdev.h index 06e162361df9..2997ce157523 100644 --- a/include/linux/mdev.h +++ b/include/linux/mdev.h @@ -148,5 +148,6 @@ void mdev_unregister_driver(struct mdev_driver *drv); struct device *mdev_parent_dev(struct mdev_device *mdev); struct device *mdev_dev(struct mdev_device *mdev); struct mdev_device *mdev_from_dev(struct device *dev); +const char *mdev_alias(struct mdev_device *mdev); #endif /* MDEV_H */