From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bh-25.webhostbox.net (bh-25.webhostbox.net [208.91.199.152]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id E1D291A1AFC for ; Fri, 10 Oct 2014 00:27:10 +1100 (EST) Received: from mailnull by bh-25.webhostbox.net with sa-checked (Exim 4.82) (envelope-from ) id 1XcDkL-000l8u-8R for linuxppc-dev@lists.ozlabs.org; Thu, 09 Oct 2014 13:27:09 +0000 Message-ID: <54368CC9.7020100@roeck-us.net> Date: Thu, 09 Oct 2014 06:25:29 -0700 From: Guenter Roeck MIME-Version: 1.0 To: Geert Uytterhoeven Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain References: <1412659726-29957-1-git-send-email-linux@roeck-us.net> <1412659726-29957-2-git-send-email-linux@roeck-us.net> In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Cc: linux-m32r-ja@ml.linux-m32r.org, Linux MIPS Mailing List , linux-efi@vger.kernel.org, "linux-ia64@vger.kernel.org" , Heiko Stuebner , Len Brown , "linux-xtensa@linux-xtensa.org" , Pavel Machek , driverdevel , linux-s390 , lguest@lists.ozlabs.org, linux-c6x-dev@linux-c6x.org, "open list:QUALCOMM HEXAGON..." , Linux-sh list , Alexander Graf , ACPI Devel Maling List , xen-devel@lists.xenproject.org, "devicetree@vger.kernel.org" , uml-devel , Linux PM list , "adi-buildroot-devel@lists.sourceforge.net" , linux-m68k , "moderated list:PANASONIC MN10300..." , linux-tegra@vger.kernel.org, openipmi-developer@lists.sourceforge.net, METAG ARCHITECTURE , "linux-arm-kernel@lists.infradead.org" , Parisc List , Cris , "Rafael J. Wysocki" , "linux-kernel@vger.kernel.org" , alpha , Andrew Morton , Romain Perier , "linuxppc-dev@lists.ozlabs.org" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 10/09/2014 04:31 AM, Geert Uytterhoeven wrote: > On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck wrote: >> +int register_poweroff_handler_simple(void (*handler)(void), int priority) >> +{ >> + char symname[KSYM_NAME_LEN]; >> + >> + if (poweroff_handler_data.handler) { >> + lookup_symbol_name((unsigned long)poweroff_handler_data.handler, >> + symname); >> + pr_warn("Poweroff function already registered (%s)", symname); >> + lookup_symbol_name((unsigned long)handler, symname); >> + pr_cont(", cannot register %s\n", symname); > > Doesn't %ps work to look up symbols? > > pr_warn("Poweroff function already registered (%ps), cannot register > %ps\n", poweroff_handler_data.handler, handler); > Hi Geert, That is great. One never stops learning. I'll use that. Thanks! Guenter