From patchwork Thu Aug 29 11:19:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Parav Pandit X-Patchwork-Id: 11121047 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 552EF16B1 for ; Thu, 29 Aug 2019 11:19:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 33DD122CF5 for ; Thu, 29 Aug 2019 11:19:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728249AbfH2LT1 (ORCPT ); Thu, 29 Aug 2019 07:19:27 -0400 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:43792 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727189AbfH2LTZ (ORCPT ); Thu, 29 Aug 2019 07:19:25 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from parav@mellanox.com) with ESMTPS (AES256-SHA encrypted); 29 Aug 2019 14:19:19 +0300 Received: from sw-mtx-036.mtx.labs.mlnx (sw-mtx-036.mtx.labs.mlnx [10.12.150.149]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id x7TBJ8v5020002; Thu, 29 Aug 2019 14:19:18 +0300 From: Parav Pandit To: alex.williamson@redhat.com, jiri@mellanox.com, kwankhede@nvidia.com, cohuck@redhat.com, davem@davemloft.net Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Parav Pandit Subject: [PATCH v2 4/6] mdev: Introduce an API mdev_alias Date: Thu, 29 Aug 2019 06:19:02 -0500 Message-Id: <20190829111904.16042-5-parav@mellanox.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190829111904.16042-1-parav@mellanox.com> References: <20190826204119.54386-1-parav@mellanox.com> <20190829111904.16042-1-parav@mellanox.com> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Introduce an API mdev_alias() to provide access to optionally generated alias. 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 c9bf2ac362b9..5399ed6f1612 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 f036fe9854ee..6da82213bc4e 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 */