From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751779AbaKKSVD (ORCPT ); Tue, 11 Nov 2014 13:21:03 -0500 Received: from bh-25.webhostbox.net ([208.91.199.152]:49291 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751156AbaKKSUv (ORCPT ); Tue, 11 Nov 2014 13:20:51 -0500 Date: Tue, 11 Nov 2014 10:20:23 -0800 From: Guenter Roeck To: Pavel Machek Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Alan Cox , Alexander Graf , Andrew Morton , Geert Uytterhoeven , Heiko Stuebner , LeeJon@roeck-us.net Subject: Re: [PATCH v6 00/48] kernel: Add support for power-off handler call chain Message-ID: <20141111182023.GA21970@roeck-us.net> References: <1415583785-6980-1-git-send-email-linux@roeck-us.net> <20141110083347.GA29543@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141110083347.GA29543@amd> User-Agent: Mutt/1.5.21 (2010-09-15) X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-CTCH-PVer: 0000001 X-CTCH-Spam: Unknown X-CTCH-VOD: Unknown X-CTCH-Flags: 0 X-CTCH-RefID: str=0001.0A020204.5462536D.0044,ss=1,re=0.001,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-Score: 0.001 X-CTCH-ScoreCust: 0.000 X-CTCH-Rules: C_4847, X-CTCH-SenderID: linux@roeck-us.net X-CTCH-SenderID-Flags: 0 X-CTCH-SenderID-TotalMessages: 2 X-CTCH-SenderID-TotalSpam: 0 X-CTCH-SenderID-TotalSuspected: 0 X-CTCH-SenderID-TotalConfirmed: 0 X-CTCH-SenderID-TotalBulk: 0 X-CTCH-SenderID-TotalVirus: 0 X-CTCH-SenderID-TotalRecipients: 0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: mailgid no entry from get_relayhosts_entry X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 10, 2014 at 09:33:48AM +0100, Pavel Machek wrote: > Hi! > > > Introduce a system power-off handler call chain to solve the described > > problems. This call chain is expected to be executed from the architecture > > specific machine_power_off() function. Drivers providing system power-off > > functionality are expected to register with this call chain. By using the > > priority field in the notifier block, callers can control power-off > > handler > > Linus rather disliked the idea of notifier chains for this... And I > don't see how it got addressed. > Hi all, After more thought, I concluded that it is technically impossible to support multiple power-off handlers without some kind of list or call chain, no matter how it is called. Given the opposition from Linus and the power maintainers to the series, I decided to shelf it. Thanks, Guenter