Re: [PATCH 0/4] ACPI: use handle, not device, in system notification path

[Len Brown <lenb@kernel.org>]

applied to acpi-test

thanks,
Len Brown, Intel Open Source Technology Center

On Fri, 22 May 2009, Bjorn Helgaas wrote:

> Currently, ACPI hotplug is mostly handled in drivers.  I'm working on moving
> that hotplug support out of drivers and into the Linux/ACPI core.
> 
> These patches change the Linux/ACPI notify handling to use the
> acpi_handle a bit longer before looking up an acpi_device.
> 
> System notifications often deal with device presence and status change.
> In these cases, we may not have an acpi_device.  For example, we may
> get a Device Check notification on an object that previously was not
> present.  Since the object was not present, we would not have had an
> acpi_device for it.
> 
> Note: The last patch in this series depends on this previous patch
> that is not upstream yet:
>     http://patchwork.kernel.org/patch/21076/
> 
> Comments welcome.
> 
> ---
> 
> Bjorn Helgaas (4):
>       ACPI: use handle, not device, in system notification path
>       ACPI: remove unused return values from Bus Check & Device Check handling
>       ACPI: remove unused "status_changed" return value from Check Device handling
>       ACPI: simplify notification debug messages
> 
> 
>  drivers/acpi/bus.c |   93 +++++++++++++---------------------------------------
>  1 files changed, 23 insertions(+), 70 deletions(-)
> 
> -- 
> Bjorn
> --
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