From patchwork Mon Jul 4 12:51:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12905321 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 389A5CCA482 for ; Mon, 4 Jul 2022 12:52:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234383AbiGDMwv (ORCPT ); Mon, 4 Jul 2022 08:52:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234489AbiGDMwZ (ORCPT ); Mon, 4 Jul 2022 08:52:25 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F6E711440; Mon, 4 Jul 2022 05:52:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=hS/izKtFuaBz8tCGqODO26FP3LQgFM6QapZn1lOmuAw=; b=LckNKII1csRofJHfA6iMQSg/NB rDlUteEkRq6KkI8ckWkW4RtXpdmU/H8y7ALuR35CbqGX4vWD9eT0XQ90SL6lzSS0Fin/d2fkkfN/u zzOlYKs9Q1ltdQK1qnCuC/1H481KLTQsUaen5u5PGXW8wM+mjSQP9fDe4ILJwya3CUSS4r1L/3JNs 5/vyLOcFOEw4MW6Pef0DVUFoJzNpeDMr4DeEXYGeiSpahjJ4fnfrAXQ5bFKxoGzuQyD51gSDWOLfi ZeNBM2r5eCQFFftOXgI7KDWSZcRtQogvbYa8CSJqlxllZ4AzrnBCx0MDRrPKGawVC50uA1moqtyf0 pl4H7e0A==; Received: from [2001:4bb8:189:3c4a:8758:74d9:4df6:6417] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8LYj-008wZJ-6m; Mon, 04 Jul 2022 12:52:13 +0000 From: Christoph Hellwig To: Kirti Wankhede , Tony Krowiak , Halil Pasic , Jason Herne , Eric Farman , Matthew Rosato , Zhenyu Wang , Zhi Wang , Alex Williamson Cc: Jason Gunthorpe , kvm@vger.kernel.org, linux-s390@vger.kernel.org, intel-gvt-dev@lists.freedesktop.org, Kevin Tian Subject: [PATCH 09/14] vfio/mdev: remove mtype_get_parent_dev Date: Mon, 4 Jul 2022 14:51:39 +0200 Message-Id: <20220704125144.157288-10-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220704125144.157288-1-hch@lst.de> References: <20220704125144.157288-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Just open code the dereferences in the only user. Signed-off-by: Christoph Hellwig Reviewed-by: Jason Gunthorpe Reviewed-by: Jason J. Herne Reviewed-by: Kevin Tian Reviewed-by: Kirti Wankhede --- drivers/s390/cio/vfio_ccw_ops.c | 3 +-- drivers/vfio/mdev/mdev_core.c | 10 ---------- include/linux/mdev.h | 2 -- 3 files changed, 1 insertion(+), 14 deletions(-) diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c index 1bb30313a630c..fb62049471ee2 100644 --- a/drivers/s390/cio/vfio_ccw_ops.c +++ b/drivers/s390/cio/vfio_ccw_ops.c @@ -88,8 +88,7 @@ static ssize_t available_instances_show(struct mdev_type *mtype, struct mdev_type_attribute *attr, char *buf) { - struct vfio_ccw_private *private = - dev_get_drvdata(mtype_get_parent_dev(mtype)); + struct vfio_ccw_private *private = dev_get_drvdata(mtype->parent->dev); return sprintf(buf, "%d\n", atomic_read(&private->avail)); } diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c index 75628759a3bf0..93f8caf2e5f77 100644 --- a/drivers/vfio/mdev/mdev_core.c +++ b/drivers/vfio/mdev/mdev_core.c @@ -23,16 +23,6 @@ static struct class_compat *mdev_bus_compat_class; static LIST_HEAD(mdev_list); static DEFINE_MUTEX(mdev_list_lock); -/* - * Used in mdev_type_attribute sysfs functions to return the parent struct - * device - */ -struct device *mtype_get_parent_dev(struct mdev_type *mtype) -{ - return mtype->parent->dev; -} -EXPORT_SYMBOL(mtype_get_parent_dev); - /* Caller must hold parent unreg_sem read or write lock */ static void mdev_device_remove_common(struct mdev_device *mdev) { diff --git a/include/linux/mdev.h b/include/linux/mdev.h index 186e5c866871e..29fc1c853dacc 100644 --- a/include/linux/mdev.h +++ b/include/linux/mdev.h @@ -51,8 +51,6 @@ static inline struct mdev_device *to_mdev_device(struct device *dev) return container_of(dev, struct mdev_device, dev); } -struct device *mtype_get_parent_dev(struct mdev_type *mtype); - /* interface for exporting mdev supported type attributes */ struct mdev_type_attribute { struct attribute attr;