From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from hydra.sisk.pl ([212.160.235.94]:53721 "EHLO hydra.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750902Ab2LKBXE (ORCPT ); Mon, 10 Dec 2012 20:23:04 -0500 From: "Rafael J. Wysocki" To: Yinghai Lu Cc: Greg Kroah-Hartman , Bjorn Helgaas , LKML , ACPI Devel Maling List , linux-pci@vger.kernel.org, Toshi Kani , Myron Stowe Subject: Re: [PATCH 5/6] ACPI: Replace struct acpi_bus_ops with enum type Date: Tue, 11 Dec 2012 02:28:04 +0100 Message-ID: <8119513.v7VrlzcaZC@vostro.rjw.lan> In-Reply-To: <38722368.Fl8pJoLSRi@vostro.rjw.lan> References: <8498184.VilrUmatxI@vostro.rjw.lan> <38722368.Fl8pJoLSRi@vostro.rjw.lan> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-pci-owner@vger.kernel.org List-ID: On Tuesday, December 11, 2012 02:02:14 AM Rafael J. Wysocki wrote: > On Monday, December 10, 2012 03:14:32 PM Yinghai Lu wrote: > > On Mon, Dec 10, 2012 at 3:09 PM, Rafael J. Wysocki wrote: > > > On Monday, December 10, 2012 11:47:27 PM Rafael J. Wysocki wrote: > > >> On Monday, December 10, 2012 09:07:06 AM Yinghai Lu wrote: > > >> > On Mon, Dec 10, 2012 at 6:46 AM, Rafael J. Wysocki wrote: > > >> > > On Sunday, December 09, 2012 09:34:42 PM Yinghai Lu wrote: > > >> > >> > > >> > >> Can we expand the BUS_ADD_* concept to other devices instead of just > > >> > >> acpi_device? > > >> > >> > > >> > >> aka we should let struct device has this add_type field. > > >> > > > > >> > > Having done that in ACPI to cover our use case here, we can try to move it > > >> > > into struct device if there are use cases beyond ACPI that can't be covered > > >> > > by using deferred driver probing. > > >> > > > >> > pci device for hotplug have same problem. need to delay driver attach > > >> > for them too. > > >> > > >> OK, I'll take a look. Any pointers to speed that up? > > >> > > >> > also BUS_ADD_MATCH and BUS_ADD_START are duplicated. > > >> > > >> Not at the moment, they do different things as code goes. > > >> > > >> > old add are separated to adding all devices to tree and then matching > > >> > work to load the drivers. > > >> > > > >> > so _START is not needed anymore, only user.start in pci_root driver > > >> > should be removed. > > >> > code in .start could be moved .add without problem. > > >> > > >> Yes, I'm going to do that as the next step. I didn't want this particular > > >> patchset to grow too big. I'll post another one on top of it if people > > >> don't have problems with this one. > > > > > > By the way, can you please remind me where you wanted to put the > > > pci_bus_add_devices() and why? > > > > > > > please check my for-pci-next branch at > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=shortlog;h=refs/heads/for-pci-next > > > > that includes delay loading acpi driver and pci driver. > > > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=commitdiff;h=8c031eabbdc83dd4d93933b82d96b55d038bcb64 > > PCI: prepare to use device drivers_autoprobe to delay attach drivers > > > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=commitdiff;h=40a12dc8942a8ed02bfbf75ee1ffbfbdf1511b45 > > PCI: Use device_add for device and bus early > > > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=commitdiff;h=8af9b4c250091c30afedeb2e7f14fca06997c811 > > ACPI: add drivers_autoprobe in struct acpi_device > > > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=commitdiff;h=ae498e157e9dc8794932562b2f885ddc3a1a229a > > ACPI: use device drivers_autoprobe to delay loading acpi drivers > > > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=commitdiff;h=6bee785b563a0b0e311e188321b1160593d5e6ee > > PCI, ACPI: Remove not used acpi_pci_root_start() > > > > http://git.kernel.org/?p=linux/kernel/git/yinghai/linux-yinghai.git;a=commitdiff;h=f467a1cd18a07a250be8527b94612fd4a654fbd1 > > ACPI: remove acpi_op_start workaround > > OK, thanks for the pointers. I actually see more differences between our > patchsets. For one example, you seem to have left the parent->ops.bind() > stuff in acpi_add_single_object() which calls it even drivers_autoprobe is > set. Sorry, that should have been "which calls it even when drivers_autoprobe is not set". I need to be more careful. > Is that the case, or am I missing anything? Thanks, Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.