PCI: Split out bridge window override of minimum allocation address

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pci_bus_alloc_resource() avoids allocating space below the "min" supplied
by the caller (usually PCIBIOS_MIN_IO or PCIBIOS_MIN_MEM).  This is to
protect badly documented motherboard resources.  But if we're allocating
space inside an already-configured PCI-PCI bridge window, we ignore "min".

See 688d191821 ("pci: make bus resource start address override minimum IO
address").

This patch moves the check to make it more visible and simplify future
patches.  No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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This commit is contained in:

Bjorn Helgaas 2013-12-18 16:31:39 -07:00

parent 167b1f0490

commit 36e097a8a2

1 changed files with 11 additions and 4 deletions

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15

drivers/pci/bus.c

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