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Driver core: add bus_sort_breadthfirst() function

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The PCI core wants to reorder the devices in the bus list.  So move this
functionality out of the pci core and into the driver core so that
anyone else can also do this if needed.  This also lets us change how
struct device is attached to drivers in the future without messing with
the PCI core.

Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2008-08-26 11:00:57 -05:00
commit 99178b036c
3 changed files with 58 additions and 45 deletions
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3
include/linux/device.h
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@ -90,6 +90,9 @@ int __must_check bus_for_each_drv(struct bus_type *bus,
struct device_driver *start, void *data,
int (*fn)(struct device_driver *, void *));
void bus_sort_breadthfirst(struct bus_type *bus,
int (*compare)(const struct device *a,
const struct device *b));
/*
* Bus notifiers: Get notified of addition/removal of devices
* and binding/unbinding of drivers to devices.