From patchwork Mon Aug 3 05:03:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Williams X-Patchwork-Id: 11697215 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 1E3541731 for ; Mon, 3 Aug 2020 05:19:34 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 06F5D206DA for ; Mon, 3 Aug 2020 05:19:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06F5D206DA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E0B556E1F2; Mon, 3 Aug 2020 05:19:33 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 71D786E1F2 for ; Mon, 3 Aug 2020 05:19:33 +0000 (UTC) IronPort-SDR: sSXOMHnYRN+fy/WtASfKU6VTeIK60Zy8OSGMw/1KBudk3qr2peKvMc4+0sX2nLHYUU7gjBJK+Y 8KhLk40MSm4w== X-IronPort-AV: E=McAfee;i="6000,8403,9701"; a="152015665" X-IronPort-AV: E=Sophos;i="5.75,429,1589266800"; d="scan'208";a="152015665" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2020 22:19:32 -0700 IronPort-SDR: xgSN7LuDBztttPvRwXwahH2wKu3/cXRemn3lBKOgjSYVW+SBnlQfGEZrEIXSrKssjt9ZCAqvXi sqNRQeqpu+hA== X-IronPort-AV: E=Sophos;i="5.75,429,1589266800"; d="scan'208";a="329890491" Received: from dwillia2-desk3.jf.intel.com (HELO dwillia2-desk3.amr.corp.intel.com) ([10.54.39.16]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2020 22:19:32 -0700 Subject: [PATCH v4 09/23] device-dax: Move instance creation parameters to 'struct dev_dax_data' From: Dan Williams To: akpm@linux-foundation.org Date: Sun, 02 Aug 2020 22:03:14 -0700 Message-ID: <159643099411.4062302.1337305960720423895.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <159643094279.4062302.17779410714418721328.stgit@dwillia2-desk3.amr.corp.intel.com> References: <159643094279.4062302.17779410714418721328.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.18-3-g996c MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ard.biesheuvel@linaro.org, linux-acpi@vger.kernel.org, linux-nvdimm@lists.01.org, peterz@infradead.org, vishal.l.verma@intel.com, dave.hansen@linux.intel.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, joao.m.martins@oracle.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In preparation for adding more parameters to instance creation, move existing parameters to a new struct. Cc: Vishal Verma Signed-off-by: Dan Williams --- drivers/dax/bus.c | 14 +++++++------- drivers/dax/bus.h | 16 ++++++++-------- drivers/dax/hmem/hmem.c | 8 +++++++- drivers/dax/pmem/core.c | 9 ++++++++- 4 files changed, 30 insertions(+), 17 deletions(-) diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c index f06ffa66cd78..dffa4655e128 100644 --- a/drivers/dax/bus.c +++ b/drivers/dax/bus.c @@ -395,9 +395,9 @@ static void unregister_dev_dax(void *dev) put_device(dev); } -struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id, - struct dev_pagemap *pgmap, enum dev_dax_subsys subsys) +struct dev_dax *devm_create_dev_dax(struct dev_dax_data *data) { + struct dax_region *dax_region = data->dax_region; struct device *parent = dax_region->dev; struct dax_device *dax_dev; struct dev_dax *dev_dax; @@ -405,14 +405,14 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id, struct device *dev; int rc = -ENOMEM; - if (id < 0) + if (data->id < 0) return ERR_PTR(-EINVAL); dev_dax = kzalloc(sizeof(*dev_dax), GFP_KERNEL); if (!dev_dax) return ERR_PTR(-ENOMEM); - memcpy(&dev_dax->pgmap, pgmap, sizeof(*pgmap)); + memcpy(&dev_dax->pgmap, data->pgmap, sizeof(struct dev_pagemap)); /* * No 'host' or dax_operations since there is no access to this @@ -438,13 +438,13 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id, inode = dax_inode(dax_dev); dev->devt = inode->i_rdev; - if (subsys == DEV_DAX_BUS) + if (data->subsys == DEV_DAX_BUS) dev->bus = &dax_bus_type; else dev->class = dax_class; dev->parent = parent; dev->type = &dev_dax_type; - dev_set_name(dev, "dax%d.%d", dax_region->id, id); + dev_set_name(dev, "dax%d.%d", dax_region->id, data->id); rc = device_add(dev); if (rc) { @@ -464,7 +464,7 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id, return ERR_PTR(rc); } -EXPORT_SYMBOL_GPL(__devm_create_dev_dax); +EXPORT_SYMBOL_GPL(devm_create_dev_dax); static int match_always_count; diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h index 55577e9791da..299c2e7fac09 100644 --- a/drivers/dax/bus.h +++ b/drivers/dax/bus.h @@ -13,18 +13,18 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id, struct resource *res, int target_node, unsigned int align); enum dev_dax_subsys { - DEV_DAX_BUS, + DEV_DAX_BUS = 0, /* zeroed dev_dax_data picks this by default */ DEV_DAX_CLASS, }; -struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id, - struct dev_pagemap *pgmap, enum dev_dax_subsys subsys); +struct dev_dax_data { + struct dax_region *dax_region; + struct dev_pagemap *pgmap; + enum dev_dax_subsys subsys; + int id; +}; -static inline struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region, - int id, struct dev_pagemap *pgmap) -{ - return __devm_create_dev_dax(dax_region, id, pgmap, DEV_DAX_BUS); -} +struct dev_dax *devm_create_dev_dax(struct dev_dax_data *data); /* to be deleted when DEV_DAX_CLASS is removed */ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys); diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c index 506893861253..b84fe17178d8 100644 --- a/drivers/dax/hmem/hmem.c +++ b/drivers/dax/hmem/hmem.c @@ -11,6 +11,7 @@ static int dax_hmem_probe(struct platform_device *pdev) struct dev_pagemap pgmap = { }; struct dax_region *dax_region; struct memregion_info *mri; + struct dev_dax_data data; struct dev_dax *dev_dax; struct resource *res; @@ -26,7 +27,12 @@ static int dax_hmem_probe(struct platform_device *pdev) if (!dax_region) return -ENOMEM; - dev_dax = devm_create_dev_dax(dax_region, 0, &pgmap); + data = (struct dev_dax_data) { + .dax_region = dax_region, + .id = 0, + .pgmap = &pgmap, + }; + dev_dax = devm_create_dev_dax(&data); if (IS_ERR(dev_dax)) return PTR_ERR(dev_dax); diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c index ea52bb77a294..08ee5947a49c 100644 --- a/drivers/dax/pmem/core.c +++ b/drivers/dax/pmem/core.c @@ -14,6 +14,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys) resource_size_t offset; struct nd_pfn_sb *pfn_sb; struct dev_dax *dev_dax; + struct dev_dax_data data; struct nd_namespace_io *nsio; struct dax_region *dax_region; struct dev_pagemap pgmap = { }; @@ -57,7 +58,13 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys) if (!dax_region) return ERR_PTR(-ENOMEM); - dev_dax = __devm_create_dev_dax(dax_region, id, &pgmap, subsys); + data = (struct dev_dax_data) { + .dax_region = dax_region, + .id = id, + .pgmap = &pgmap, + .subsys = subsys, + }; + dev_dax = devm_create_dev_dax(&data); /* child dev_dax instances now own the lifetime of the dax_region */ dax_region_put(dax_region);