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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS 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 32AE7C4360F for ; Thu, 21 Mar 2019 16:37:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0B8D9218E2 for ; Thu, 21 Mar 2019 16:37:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728787AbfCUQhT (ORCPT ); Thu, 21 Mar 2019 12:37:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:59004 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728550AbfCUQhR (ORCPT ); Thu, 21 Mar 2019 12:37:17 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B5719218E2; Thu, 21 Mar 2019 16:37:16 +0000 (UTC) Date: Thu, 21 Mar 2019 12:37:15 -0400 From: Steven Rostedt To: Felipe Balbi Cc: Alexander Shishkin , Ingo Molnar , Linux USB , linux-kernel@vger.kernel.org, Chunyan Zhang Subject: Re: [PATCH] usb: gadget: functions: add ftrace export over USB Message-ID: <20190321123715.027e9369@gandalf.local.home> In-Reply-To: <87ftrg8t3j.fsf@linux.intel.com> References: <20170609061327.17899-1-felipe.balbi@linux.intel.com> <87ftrg8t3j.fsf@linux.intel.com> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 21 Mar 2019 11:38:56 +0200 Felipe Balbi wrote: > Hi, > > Felipe Balbi writes: > > Allow for ftrace data to be exported over a USB Gadget > > Controller. With this, we have a potentially very fast pipe for > > transmitting ftrace data to a Host PC for further analysis. > > > > Note that in order to decode the data, one needs access to kernel > > symbols in order to convert binary data into function names and what > > not. > > > > Signed-off-by: Felipe Balbi > > --- > > > > I wanted to take this through the gadget tree, but there is a > > dependency with a previous patch of mine adding and extra argument to > > the ->write() function. Hoping someone else will take it. > > This is still not upstream, I'll take it through my tree this time around. > Can you post the latest to the list one more time. At least to make sure you got the naming correct ;-) Not FTrace or f_trace. -- Steve