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[2620:137:e000::1:20]) by mx.google.com with ESMTP id j19-20020aa7c0d3000000b0042dd6491cd2si17166904edp.436.2022.06.07.01.29.08; Tue, 07 Jun 2022 01:29:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcdkim header.b=FsgNdOUp; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236565AbiFGEiT (ORCPT + 99 others); Tue, 7 Jun 2022 00:38:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229773AbiFGEiN (ORCPT ); Tue, 7 Jun 2022 00:38:13 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 543EE2126A; Mon, 6 Jun 2022 21:38:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654576692; x=1686112692; h=message-id:date:mime-version:subject:from:to:cc: references:in-reply-to:content-transfer-encoding; bh=BLQzm4ANOPyOqQWpgZxl6tFyVP4G/i6sNgt5raxU3t4=; b=FsgNdOUpFB7SjkksjtiVnIn3fvTG7Q5T6wBT2D6TvM7eg6yUVgjtPHYy 32VQGlQpxpAsA6/GN7Aj3KWiRW/2cxDzV6oZLOT/XvJmQrJwr+LZx3qx1 fYbYqCVmREujn8pdTE21DRmxBAMI+LyrxfnMuazwCBDg3W0f1Xl6T0/fI 0=; Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by alexa-out-sd-02.qualcomm.com with ESMTP; 06 Jun 2022 21:38:10 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg01-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jun 2022 21:38:10 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Mon, 6 Jun 2022 21:38:10 -0700 Received: from [10.50.51.61] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Mon, 6 Jun 2022 21:38:06 -0700 Message-ID: <29289523-6779-9a57-8dea-f6108b362062@quicinc.com> Date: Tue, 7 Jun 2022 10:08:02 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.6.1 Subject: Re: [PATCHv15 5/9] lib: Add register read/write tracing support Content-Language: en-US From: Sai Prakash Ranjan To: , CC: , , , , , , , , , References: <5544ba12-8a7a-3bc5-1416-c8c707500c9d@quicinc.com> In-Reply-To: <5544ba12-8a7a-3bc5-1416-c8c707500c9d@quicinc.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Steve, On 5/24/2022 9:29 AM, Sai Prakash Ranjan wrote: > Hi Steve, > > On 5/18/2022 10:14 PM, Sai Prakash Ranjan wrote: >> From: Prasad Sodagudi >> >> Generic MMIO read/write i.e., __raw_{read,write}{b,l,w,q} accessors >> are typically used to read/write from/to memory mapped registers >> and can cause hangs or some undefined behaviour in following few >> cases, >> ... > How does this version look? > Gentle ping!! Thanks, Sai