Revert "PCI: remove default PCI expansion ROM memory allocation"

upstream commit: 8d539108560ec121d59eee05160236488266221c

This reverts commit 9f8daccaa05c14e5643bdd4faf5aed9cc8e6f11e, which was
reported to break X startup (xf86-video-ati-6.8.0). See

	http://bugs.freedesktop.org/show_bug.cgi?id=15523

for details.

Reported-by: Laurence Withers <l@lwithers.me.uk>
Cc: Gary Hade <garyhade@us.ibm.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jan Beulich <jbeulich@novell.com>
Cc: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[cebbert@redhat.com: backport, remove first hunk to make port easier]
[chrisw@sous-sol.org: add back first hunk]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 05356ce71fce3fa5283bf7189cd8e2ac7d0a78a5..c7e2a44a57013cf63cb4525400e9f1acdbb5ca03 100644 (file)
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -130,19 +130,6 @@ static void __devinit pcibios_fixup_ghosts(struct pci_bus *b)
        }
 }
 
-static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
-{
-       struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];
-
-       if (rom_r->parent)
-               return;
-       if (rom_r->start)
-               /* we deal with BIOS assigned ROM later */
-               return;
-       if (!(pci_probe & PCI_ASSIGN_ROMS))
-               rom_r->start = rom_r->end = rom_r->flags = 0;
-}
-
 /*
  *  Called after each bus is probed, but before its children
  *  are examined.
@@ -150,12 +137,8 @@ static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
 
 void __devinit  pcibios_fixup_bus(struct pci_bus *b)
 {
-       struct pci_dev *dev;
-
        pcibios_fixup_ghosts(b);
        pci_read_bridge_bases(b);
-       list_for_each_entry(dev, &b->devices, bus_list)
-               pcibios_fixup_device_resources(dev);
 }
 
 /*