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 1CE41C43381 for ; Thu, 21 Mar 2019 09:39:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E417C218AE for ; Thu, 21 Mar 2019 09:39:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728197AbfCUJjD (ORCPT ); Thu, 21 Mar 2019 05:39:03 -0400 Received: from mga11.intel.com ([192.55.52.93]:22492 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727946AbfCUJjD (ORCPT ); Thu, 21 Mar 2019 05:39:03 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Mar 2019 02:39:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,252,1549958400"; d="asc'?scan'208";a="142573572" Received: from pipin.fi.intel.com (HELO localhost) ([10.237.72.175]) by FMSMGA003.fm.intel.com with ESMTP; 21 Mar 2019 02:39:00 -0700 From: Felipe Balbi To: Alexander Shishkin , Steven Rostedt , Ingo Molnar Cc: Linux USB , linux-kernel@vger.kernel.org, Chunyan Zhang Subject: Re: [PATCH] usb: gadget: functions: add ftrace export over USB In-Reply-To: <20170609061327.17899-1-felipe.balbi@linux.intel.com> References: <20170609061327.17899-1-felipe.balbi@linux.intel.com> Date: Thu, 21 Mar 2019 11:38:56 +0200 Message-ID: <87ftrg8t3j.fsf@linux.intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable 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. =2D-=20 balbi --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEElLzh7wn96CXwjh2IzL64meEamQYFAlyTW7AACgkQzL64meEa mQYr8A//XKk81spjbBLdh4ILwPtSNFPBlJcGgVMcLGJC39msBz/6tXqDq4uje1g2 UbtS5E3Ripg1fIlxXSz2wULCHuyhi71716I+yxXGUhXS7L3yiWhp2dDukin/HXE9 x9lmPWWaJ4m9RXzSlRHZc3Ryk54UaTwaqLRjTg7IluMVKbj/sRy0fJedrWafLIlL V8e135fC6rGNQ7qfu9U2g+lv6b6iQdw0YXD+NyasSy8wmCvnF+QpR5ZKoqZPH1x/ GyB9Ta5WMfH/yypRAuEtrPg8vazlhEH8szJaeG3qnW4ToFjMMMpvm8dt268Ti0hZ j3x2Cp6GnlWqPwIvioyX4KB6hr+ygBm2hlczXEEQOHO7r/MxHUx8dX6VrfkSZ30P wgqSEHWz3pkScTwz1Ft0XZ0CSoFXyteNRxPiNFj1CpzwvuXMSGxckZ6AyLjZssaQ 2Kt8rYCua1kRMd8K55WgomId22YRn/mhtYXfc0reKZBwchWD5m3ZiNPUa6qXSe7v r3Ugm5kt0e/JoxpVYiK1W4CybBD1Q1hEIbm/cocaPrQ4XPfvDPZ8n3jZmRw0/8dy jTWunHzuQLec9YqgE28km24grCyazn9mLpq/iUCZkVd/AVut2m0EWQGHSi5w+cvA 8eBekf86vlXNOPbPG2RFpyV50M03LIo4LfN7fAqmv+7GfRKhoik= =XlXA -----END PGP SIGNATURE----- --=-=-=--