From: Yu Zhao <yu.zhao@intel.com>
Date: Fri, 21 Nov 2008 18:41:07 +0000 (+0800)
Subject: PCI: allow pci_alloc_child_bus() to handle a NULL bridge
X-Git-Tag: v2.6.29-rc1~181^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3789fa8a2e534523c896a32a9f27f78d52ad7d82;p=pandora-kernel.git

PCI: allow pci_alloc_child_bus() to handle a NULL bridge

Allow pci_alloc_child_bus() to allocate buses without bridge devices.
Some SR-IOV devices can occupy more than one bus number, but there is no
explicit bridges because that have internal routing mechanism.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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