linux-kernel - Re: [PATCH 0/5][RFT] ACPI / hotplug / PCI: Consolidation of ACPIPHP with ACPI core device hotplug

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Message-ID: <1693151.2qrLZHyp0o@vostro.rjw.lan>
Date:	Wed, 29 Jan 2014 00:57:06 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>, Aaron Lu <aaron.lu@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux PCI <linux-pci@...r.kernel.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: Re: [PATCH 0/5][RFT] ACPI / hotplug / PCI: Consolidation of ACPIPHP with ACPI core device hotplug

On Tuesday, January 28, 2014 11:10:30 PM Rafael J. Wysocki wrote:
> Hi All,
> 
> It looks like there's time for more adventurous stuff. :-)
> 
> The following series is on top of the one I sent on Sunday:
> 
> https://lkml.org/lkml/2014/1/26/191
> 
> The final outcome of the patches below is that all ACPI hotplug notifications
> for PCI devices and for core system things like CPU, memory, PCI roots etc.,
> will be dispatched from acpi_bus_notify() and it is not necessary to install a
> separate hotplug notify handler for each device any more.
> 
> [1/5] Attach ACPIPHP hotplug contexts to struct acpi_device objects.
> [2/5] Introduce wrappers for installing and removing hotplug notify handlers
>       (those wrappers go away later on, but they are useful for separating
>        changes).
> [3/5] Consolidate ACPI hotplug signaling for PCI and ACPI core.
> [4/5] Simplify notify handle registration wrapper.
> [5/5] Dispatch ACPI hotplug notifications for "core" devices and PCI from acpi_bus_notify().

Unfortunately, I realized that patches [3-5/5] were buggy.  The bugs were
kind of subtle and might not be easy to reproduce, but they were bugs anyway. :-)

A respin of the whole series follows.

Thanks!

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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