From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 86BC1231832 for ; Fri, 27 Mar 2026 17:07:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774631230; cv=none; b=e/rXIWCE/A8rx8s+pp10rzs/+AbX0bqH49j1vKZ7f9ZN3NpqPvs8pM20ShilLAD8kSWUSaxqBXHqycFJ4J91XaHGlvOs+8LYtnkBU+VvU4EoKQHNR+FEittmn+R3mie3DtDzMg8rBIQmqAjZfP2M1els5B67088BdhRsuMxS6PI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774631230; c=relaxed/simple; bh=2eKbL7xYfeVPWfGy2MlBh+ZEdyTwNLEWnxOA3MYI+d8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=mX6JcA23PSTUrd7VRRdFiDgxVUb5HMF+phaee6OjHMmk+9VJ3zJdCW1ECUxAg+tk0FmWkZct4F2A0jMy969DukyDuiN+PA1p2pWpVsrMkv+jIdM/j9gpfRoPBAWLLVchKTU/pdZDcrKF//hDSSKY3MkZzSt/vjXgbJNIlZyrxXA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Q0eMstvZ; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Q0eMstvZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774631230; x=1806167230; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=2eKbL7xYfeVPWfGy2MlBh+ZEdyTwNLEWnxOA3MYI+d8=; b=Q0eMstvZwFwsK8szSPM9iXDJp4U22UEssBB1+20MSPbUsdKpIM5JUzBS QZTHG1BKV+jtMYVzYo68reGsXEyPaZUmLWFoPSa2gYIe3s4ILonnHd+iO 40JvkgSIfPxpSRK0/0UXAnp1rpMW5H5zPkK2Ry3MSdUixNO7M74kr7laJ gDE0xVz2Nq6Ylg94NzjXL65wBXDYVRX7D2pyQFmZf1SetoYSO7OvsaQla GtdK00x7eaRpORNVNrUeRfgRQ7sj1XF5g2Q5l2Ke0iF4hg9xRrr562nKm wdJudfLoGfC6aac+C3WcmPKUuBqfSimqqpaYbJoItY9Te5UrKhUdHXKts Q==; X-CSE-ConnectionGUID: jqRZqtp7SLaRPQmTyDAm/A== X-CSE-MsgGUID: UDX0EY08Q4mIlDJBg9C+IA== X-IronPort-AV: E=McAfee;i="6800,10657,11742"; a="79315414" X-IronPort-AV: E=Sophos;i="6.23,144,1770624000"; d="scan'208";a="79315414" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2026 10:07:09 -0700 X-CSE-ConnectionGUID: vVguU01ESZ+tI90ciJoe/Q== X-CSE-MsgGUID: iQwTMJ8DQYGw+mM6rXAYsA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,144,1770624000"; d="scan'208";a="225625326" Received: from sghuge-mobl2.amr.corp.intel.com (HELO [10.125.110.180]) ([10.125.110.180]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2026 10:07:08 -0700 Message-ID: <065bdf0c-dd55-4d8e-8ba0-aac20dc8a727@intel.com> Date: Fri, 27 Mar 2026 10:07:07 -0700 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 7/9] dax/hmem: Parent dax_hmem devices To: Dan Williams Cc: patches@lists.linux.dev, linux-cxl@vger.kernel.org, alison.schofield@intel.com, Smita.KoralahalliChannabasappa@amd.com References: <20260327052821.440749-1-dan.j.williams@intel.com> <20260327052821.440749-8-dan.j.williams@intel.com> Content-Language: en-US From: Dave Jiang In-Reply-To: <20260327052821.440749-8-dan.j.williams@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 3/26/26 10:28 PM, Dan Williams wrote: > For test purposes it is useful to be able to determine which > "hmem_platform" device is hosting a given sub-device. > > Register hmem devices underneath "hmem_platform". > > Signed-off-by: Dan Williams Reviewed-by: Dave Jiang > --- > drivers/dax/hmem/hmem.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c > index e1dae83dae8d..af21f66bf872 100644 > --- a/drivers/dax/hmem/hmem.c > +++ b/drivers/dax/hmem/hmem.c > @@ -96,6 +96,7 @@ static int __hmem_register_device(struct device *host, int target_nid, > return -ENOMEM; > } > > + pdev->dev.parent = host; > pdev->dev.numa_node = numa_map_to_online_node(target_nid); > info = (struct memregion_info) { > .target_node = target_nid,