From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 083CA2C80 for ; Mon, 24 Jan 2022 00:29:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1642984167; x=1674520167; h=subject:from:to:cc:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hlxljobEWfnUs4WLOJfsFeacPUUg9sjXKYFx885zO5k=; b=Q3VvlJ1N7p5li+j/pPf/irYE3K2jRjqjOV5lzwSbYLh/h4djQk1WW+B2 zDV95PyB5WHEeTQvBNc/zpg88Zk5kOTiItNJhM7ERi3AW6H/WCBaDkwBU 6OntrjYML6qj/rPiunJbSZIth19n48+iBlIYHqB01aCQgVc5MhgR17R74 kfaz1soKz4DcQazuzSJceiVTfxGuLn3EoK0xi9Tw/6688rnLBv6IitfG+ VYRYc3Cbekc1uu/Iwv8RWRL/9SQNi0kut1foPF2GRUEFs+t1K6yoZFQxs Wgr4eHPBsaBskNmews0BuysKDWRzqODpSq0BxDk5eofZEsi7DYJ3YkIIa g==; X-IronPort-AV: E=McAfee;i="6200,9189,10236"; a="226608005" X-IronPort-AV: E=Sophos;i="5.88,311,1635231600"; d="scan'208";a="226608005" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jan 2022 16:29:26 -0800 X-IronPort-AV: E=Sophos;i="5.88,311,1635231600"; d="scan'208";a="623902590" Received: from dwillia2-desk3.jf.intel.com (HELO dwillia2-desk3.amr.corp.intel.com) ([10.54.39.25]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jan 2022 16:29:26 -0800 Subject: [PATCH v3 09/40] cxl/decoder: Hide physical address information from non-root From: Dan Williams To: linux-cxl@vger.kernel.org Cc: linux-pci@vger.kernel.org, nvdimm@lists.linux.dev Date: Sun, 23 Jan 2022 16:29:26 -0800 Message-ID: <164298416650.3018233.450720006145238709.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <164298411792.3018233.7493009997525360044.stgit@dwillia2-desk3.amr.corp.intel.com> References: <164298411792.3018233.7493009997525360044.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.18-3-g996c Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Just like /proc/iomem, CXL physical address information is reserved for root only. Signed-off-by: Dan Williams --- drivers/cxl/core/port.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index 3f9b98ecd18b..c5e74c6f04e8 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -49,7 +49,7 @@ static ssize_t start_show(struct device *dev, struct device_attribute *attr, return sysfs_emit(buf, "%#llx\n", cxld->range.start); } -static DEVICE_ATTR_RO(start); +static DEVICE_ATTR_ADMIN_RO(start); static ssize_t size_show(struct device *dev, struct device_attribute *attr, char *buf)