From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (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 224401553A9; Fri, 3 May 2024 16:21:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714753314; cv=none; b=No4g9nVYoELxevYhsRJrm/k6fwY5pFsU/jZNoHglmLwOGThHeHXwAMN1oC6Td0W80UHq/9qmlA3XbXvW+z1/t8kld/uRoxQKdnxWOJI9Zo4oQ0n3MhRJ5c849RC1/ozyohPYK+4qfZO+3SgmU7KZnGHjXrq5SeKZJP2adEAJJKU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714753314; c=relaxed/simple; bh=+WZYw0B4OM/rKACRXsBObMoY+qjIrv25dqxO8/Jv2gM=; h=Message-ID:Date:MIME-Version:From:Subject:To:Cc:Content-Type; b=V+ATQkHXCqYU18O7G1nN4ZxN8dVwW4GDML6veP+mhKRAjDDAwDRFYAmQhQyP/c0JDsrMyxlsMZYa9D4YaY2M1UvFDDzyNvs8uOT20/EKsu++UBxMO/FykcA3t8NTnv0+cY2EJr7s9QJfttbbVQMzFV++79L81lua/GF2AfqzAYs= 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=RYPv4iYO; arc=none smtp.client-ip=192.198.163.13 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="RYPv4iYO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1714753313; x=1746289313; h=message-id:date:mime-version:from:subject:to:cc: content-transfer-encoding; bh=+WZYw0B4OM/rKACRXsBObMoY+qjIrv25dqxO8/Jv2gM=; b=RYPv4iYO/+P2zOKLCQ44zth654oBoxsFFFTzkaIBZ7OmZ/XlunnPIfRe gj00H+UK4e3IihgKXRcHoGUuMP7aEgZyZvspKo8aUjXOgtk4yB6QBLfG5 WU110L53ZKQZ4tc8QMfSeZ4iDkVHjjZr31sVBMdEeamNY1fFRVGqSDWnr 2kgK67z5LxJMIc41LpGxiCQ98QHcxUJkP5/xkpqHp0zOnY3CILClRp6vI pz9UVV8MuJyPjgnTczBmwo8sbaomthgZ3XPOkkZY3NHrJgioChVnjnvrA X2ZqhAhba8x2mC6zI6cegRy/pxOFB4Vx3gmS1U0yGeTqBIGFQ4CbFSVI1 w==; X-CSE-ConnectionGUID: cPjQt6PzR6OMp7BD7mYn+g== X-CSE-MsgGUID: xvvbC1FISXGKV4/GRjEhvg== X-IronPort-AV: E=McAfee;i="6600,9927,11063"; a="13513323" X-IronPort-AV: E=Sophos;i="6.07,251,1708416000"; d="scan'208";a="13513323" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2024 09:21:52 -0700 X-CSE-ConnectionGUID: rHUZUIC5ScK6smLyKYSS/A== X-CSE-MsgGUID: LBVLLm3iRjaMaSNWitCPrw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,251,1708416000"; d="scan'208";a="27367922" Received: from djiang5-mobl3.amr.corp.intel.com (HELO [10.124.222.56]) ([10.124.222.56]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2024 09:21:52 -0700 Message-ID: <64b8cfc3-c2f2-487a-bced-8519690239a4@intel.com> Date: Fri, 3 May 2024 09:21:51 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US From: Dave Jiang Subject: [GIT PULL] Compute Express Link (CXL) Fix for 6.9-rc7 To: Linus Torvalds Cc: "linux-cxl@vger.kernel.org" , linux-kernel , Dan Williams , Jonathan Cameron , Davidlohr Bueso , Ira Weiny , Alison Schofield , Vishal Verma Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Linus, please pull from git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git tags/cxl-fixes-6.9-rc7 ...to receive a fix for the CXL subsystem. A late bug was reported by Robert Richter that the Restricted CXL Host (RCH) support was missing in the CXL endpoint access_coordinate calculation. The missing support causes the topology iterator to stumble over a NULL pointer and triggers a kernel OOPS on a platform with CXL 1.1 support. The fix bypasses RCH topology as the access_coordinate calculation is not necessary since RCH does not support hotplug and the memory region exported should be covered by the HMAT table already. A unit test is also added to cxl_test to check against future regressions on the topology iterator. This has build success notification from kbuild-robot. It has been in the -next for several days with no reported issues. --- The following changes since commit e67572cd2204894179d89bd7b984072f19313b03: Linux 6.9-rc6 (2024-04-28 13:47:24 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git tags/cxl-fixes-6.9-rc7 for you to fetch changes up to 5d211c7090590033581175d6405ae40917ca3a06: cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH (2024-04-29 09:03:26 -0700) ---------------------------------------------------------------- cxl fix for v6.9-rc7 - Add missing RCH support for endpoint access_coordinate calculation ---------------------------------------------------------------- Dave Jiang (1): cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH drivers/cxl/core/port.c | 15 ++++++++++++++- tools/testing/cxl/test/cxl.c | 7 +++++++ 2 files changed, 21 insertions(+), 1 deletion(-)