From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D53BDC43613 for ; Thu, 20 Jun 2019 13:46:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A70BD2080D for ; Thu, 20 Jun 2019 13:46:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="adDajW9R"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="adDajW9R" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726551AbfFTNqA (ORCPT ); Thu, 20 Jun 2019 09:46:00 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:60082 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726391AbfFTNqA (ORCPT ); Thu, 20 Jun 2019 09:46:00 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E76C36087F; Thu, 20 Jun 2019 13:45:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1561038358; bh=EVLOjBiuHAwvyWvBoM5vLEyeiGbRDiMlF01y77p98+c=; h=From:To:Cc:Subject:Date:From; b=adDajW9R26ZLq50ZmUogq+7HJkHeDy/6dHCZR8TOCY/j2l2QqNuN3/6IkI5gLUlX4 gjXjRcHgaaFs1z4KMDvt3HMy4kZHOyEmZmLsLu6jQWmf3rNej36Bk5aXI5xrPLA9f4 7+AFi2Ez9VqWkcRqQEPztd+QdfsfBeByFNu3YAys= Received: from blr-ubuntu-253.qualcomm.com (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: saiprakash.ranjan@codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id A54A1602A7; Thu, 20 Jun 2019 13:45:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1561038358; bh=EVLOjBiuHAwvyWvBoM5vLEyeiGbRDiMlF01y77p98+c=; h=From:To:Cc:Subject:Date:From; b=adDajW9R26ZLq50ZmUogq+7HJkHeDy/6dHCZR8TOCY/j2l2QqNuN3/6IkI5gLUlX4 gjXjRcHgaaFs1z4KMDvt3HMy4kZHOyEmZmLsLu6jQWmf3rNej36Bk5aXI5xrPLA9f4 7+AFi2Ez9VqWkcRqQEPztd+QdfsfBeByFNu3YAys= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A54A1602A7 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=saiprakash.ranjan@codeaurora.org From: Sai Prakash Ranjan To: Mathieu Poirier , Suzuki K Poulose , Leo Yan , Alexander Shishkin , Andy Gross , David Brown , Mark Rutland Cc: Rajendra Nayak , Vivek Gautam , Sibi Sankar , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Sai Prakash Ranjan Subject: [PATCH 0/2] coresight: Set affinity to invalid for missing CPU phandle Date: Thu, 20 Jun 2019 19:15:45 +0530 Message-Id: X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In case of missing CPU phandle, the affinity is set default to CPU0 which is not a correct assumption and leads to crashes in few cases. Fix this by returning -ENODEV in coresight platform and abort the probe in coresight etm and cpu-debug drivers. Sai Prakash Ranjan (2): coresight: Set affinity to invalid for missing CPU phandle coresight: Abort probe for missing CPU phandle drivers/hwtracing/coresight/coresight-cpu-debug.c | 3 +++ drivers/hwtracing/coresight/coresight-etm3x.c | 3 +++ drivers/hwtracing/coresight/coresight-etm4x.c | 3 +++ drivers/hwtracing/coresight/coresight-platform.c | 10 ++++++---- 4 files changed, 15 insertions(+), 4 deletions(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation