Received: by 10.223.176.46 with SMTP id f43csp2781638wra; Thu, 25 Jan 2018 15:15:28 -0800 (PST) X-Google-Smtp-Source: AH8x2277pWT7cKi15rmzIj5P2P3AXoMHMP0LF+ec6OhWhWAyE2SPBbU5+iO/t6iRCK+XX1qM2XZQ X-Received: by 10.101.76.199 with SMTP id n7mr14167849pgt.388.1516922128400; Thu, 25 Jan 2018 15:15:28 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1516922128; cv=none; d=google.com; s=arc-20160816; b=NpX7KvlDTRVi74tG9RryI9TytraMZq0+4MmCmihGVg7iYIz3xXLBn5RikEJsD4CORf /fnJtCe7AO0gBJKowMc45DJ3lfHMUxUMt8fy6Z7Hb+lgAeV7oTEMItPbial9F0U8tXW8 nsTGmNoUe7dAoHSi+88/QuneODXN4tfLciXLCx3csObnjKgnSPCOtb3QrU+b7KGbxa+C 5j2MsgWp/ySaU8K7jOBOcOWD8NZTRgBTsDFMAjjDWCSzNDF64/bez/7BkzwvskVb76zX Je2x5hzvYU4+4uPlEelwGWnVS66f/Xcx7EvYsza5YmRsP/qDb2cNjNXm4wWjbnhSEPYY Z7bw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=/bB22Suainmhp/zOrF/n43odtLiiY9cPx35BQNpZ/L0=; b=u6FQZHDpXSoZ1SzwMdW4rv6en/QDCWNhJ3L/bqkszrtGyXx96l33p5nbaLhXWbRuP5 iwyHOhEoEG1P5T5hGEwEvj/TaFTygCH7zbfNbs0MabV1PUZYblyro0hLIzzax6jhSTWx S1IyRFKtKdUCOPmMsLKIWrh6AwNJosmW0AG4wsSVtM2RGlGLsbxsV5RC6IXT8CWI+WXk W+BTS8qrIeTDAI6ezApipgy/eM4lM9R7C2DPxfKktpLltdt8zvZ/zNyoMdFh1tUiFAKT 9vgF1d+FXYKeBIgNBtHM3THA2vnvDTfSipBFIySmmJ6cNOb14l89CqCRIAfPrXemSBX7 kgqA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 89-v6si2721148plb.612.2018.01.25.15.15.13; Thu, 25 Jan 2018 15:15:28 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751541AbeAYXOq (ORCPT + 99 others); Thu, 25 Jan 2018 18:14:46 -0500 Received: from sauhun.de ([88.99.104.3]:32919 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751406AbeAYXOp (ORCPT ); Thu, 25 Jan 2018 18:14:45 -0500 Received: from localhost (p54B334CF.dip0.t-ipconnect.de [84.179.52.207]) by pokefinder.org (Postfix) with ESMTPSA id 042D02C3249; Fri, 26 Jan 2018 00:14:43 +0100 (CET) Date: Fri, 26 Jan 2018 00:14:43 +0100 From: Wolfram Sang To: Frank Rowand Cc: Wolfram Sang , Steven Rostedt , devicetree@vger.kernel.org, Tyrel Datwyler , Geert Uytterhoeven , linux-renesas-soc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Rob Herring , linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues Message-ID: <20180125231443.44yy65ztr6exaam7@ninjato> References: <20180121143117.19805-1-wsa+renesas@sang-engineering.com> <00fc90ee-de26-f819-9c81-27d06918564d@gmail.com> <20180125060330.781667e9@vmware.local.home> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="n4w6rxijzavoppz7" Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --n4w6rxijzavoppz7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > This means that ftrace can not be used for the of_node_get(), > of_node_put(), and of_node_release() debug info, because > these functions are called before early_initcall(). For the record: You can still unbind/bind devices. This is how I debugged an issue. --n4w6rxijzavoppz7 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAlpqZOMACgkQFA3kzBSg KbaAZQ/+OJuePdP2xy5w1SKxHCqgxaovSERYGNlXVBRkH7gRB336v4p/YprZM6qR +0LXfF8awfZXFd574ZlAaT+rCR0LtsP5IG0URrONoGb5Shu50ywM0Y0+dgcqUruh 2h4vdPGGLooI+Seu28spakiT+yK/K0uPhuGffouZEriyCIZB+EUO4NGpsKmHFUnP n2fSJGDvUk6gY630NZROwkaTPJrj0+7Q2gZTfIBVDa2pHYLqST5sOjhXAcTPHAjM rt5eTs4QOWfN8njoDPzUreLVWP/ZYxtA1S83p0YZ4UDcAEuo5/XKPyhHcegriBYB aNCdg26Axf1JDbfrpYC1oYLjhvFGxoyiNZyr2JhhlpIQPbwHRXu3glC8fnMZxH2H tx3UMg9Zr8QlgQ1M9OHGQP/7luK/wxSpc7TBJdLIzospaceJxXKKj4C64i7zjT66 PpyWCxYPvSp8Q8SW5NJ62WklVuPY04cM2Wpu6Eq2dv2v7Ci0JaHuLm53bIfK0Ipj z3I7fKHGX+L1oqTnCnGm3p2jNnpyiJu97EvSPyqh283qjkDvFq3WDOHelf6XKQos PRhVFcqQNbieT4ukd3CQFBskuavznXEYHaSfHZjr1CEver7s78ocXXzbmTgE4QfL kS9LwcvZwgrCHeZX6B97lyas1btGTvyHcEQPPPtfKOJPtuWh/8Y= =awQJ -----END PGP SIGNATURE----- --n4w6rxijzavoppz7--