From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 28 Jan 2014 23:28:21 +0000 (-0700)
Subject: x86/PCI: Drop pcibios_scan_root() check for bus already scanned
X-Git-Tag: v3.15-rc1~143^2~12^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f19e84824ac62d662a1d2b2b367f23b98bbd6d1d;p=pandora-kernel.git

x86/PCI: Drop pcibios_scan_root() check for bus already scanned

The PCI core checks to see whether we've already scanned a bus, so we don't
need to do it in pcibios_scan_root().  Here's where it happens in the core:

  pcibios_scan_root
    pci_scan_bus_on_node
      pci_scan_root_bus
        pci_create_root_bus
	  b2 = pci_find_bus(pci_domain_nr(b), bus)
	  if (b2)
	    goto err_out;    # already scanned this bus

This removes the check from pcibios_scan_root().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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