From patchwork Wed Sep 21 15:33:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Jiang X-Patchwork-Id: 12983910 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 71717C6FA8E for ; Wed, 21 Sep 2022 15:39:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229761AbiIUPjf (ORCPT ); Wed, 21 Sep 2022 11:39:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58658 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231296AbiIUPiL (ORCPT ); Wed, 21 Sep 2022 11:38:11 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4EDA9C2CA for ; Wed, 21 Sep 2022 08:34:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1663774447; x=1695310447; h=subject:from:to:cc:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=H1IkV4mJ7QzoLK2yUqSaO7cBp/erS0OV1wCnr6ymy6g=; b=KQZU1XMa1jVHW/FmliihYGb+CKnmCOpJ/yRk0RCx6o+bAEEEOMmwwdgq 6uE3jKKLil+rHBuQ0lrDA+wzhtYgx0ak7EP82HeukD64a3Wl0z7l7eOBL NarFb5QlwCJaXe1cIC4rvjg1DRvYwMXm88XwasBmx+I4VNcqwaCNMMMcj egcemTmbYthptsOaY6RBPGacAJNkzEEUjz5Yq9ROIKvlwg2JwGwjLD698 3O1kHeOCq04QUU2Q/97eDiC9g8sBa69k149l4E7elffkoEw3uvCxS19UQ dWCxkCMZy/75CQTcVCr75X9Q/tybkYSKrIfMdkXncvBuoe/DL9wavi8KW Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10477"; a="280407773" X-IronPort-AV: E=Sophos;i="5.93,333,1654585200"; d="scan'208";a="280407773" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Sep 2022 08:33:10 -0700 X-IronPort-AV: E=Sophos;i="5.93,333,1654585200"; d="scan'208";a="597034939" Received: from djiang5-desk3.ch.intel.com ([143.182.136.137]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Sep 2022 08:33:09 -0700 Subject: [PATCH v2 17/19] cxl/pmem: add provider name to cxl pmem dimm attribute group From: Dave Jiang To: linux-cxl@vger.kernel.org Cc: nvdimm@lists.linux.dev, dan.j.williams@intel.com, bwidawsk@kernel.org, ira.weiny@intel.com, vishal.l.verma@intel.com, alison.schofield@intel.com, dave@stgolabs.net, Jonathan.Cameron@huawei.com Date: Wed, 21 Sep 2022 08:33:09 -0700 Message-ID: <166377438921.430546.5550361331475412529.stgit@djiang5-desk3.ch.intel.com> In-Reply-To: <166377414787.430546.3863229455285366312.stgit@djiang5-desk3.ch.intel.com> References: <166377414787.430546.3863229455285366312.stgit@djiang5-desk3.ch.intel.com> User-Agent: StGit/1.4 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org Add provider name in order to associate cxl test dimm from cxl_test to the cxl pmem device when going through sysfs for security testing. Signed-off-by: Dave Jiang --- drivers/cxl/pmem.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/cxl/pmem.c b/drivers/cxl/pmem.c index 9f34f8701b57..cb303edb925d 100644 --- a/drivers/cxl/pmem.c +++ b/drivers/cxl/pmem.c @@ -48,6 +48,15 @@ static void unregister_nvdimm(void *nvdimm) cxl_nvd->bridge = NULL; } +static ssize_t provider_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm); + + return sysfs_emit(buf, "%s\n", dev_name(&cxl_nvd->dev)); +} +static DEVICE_ATTR_RO(provider); + static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct nvdimm *nvdimm = to_nvdimm(dev); @@ -61,6 +70,7 @@ static DEVICE_ATTR_RO(id); static struct attribute *cxl_dimm_attributes[] = { &dev_attr_id.attr, + &dev_attr_provider.attr, NULL };