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PCI: handle 64-bit resources better on 32-bit machines

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If the kernel is configured to support 64-bit resources on a 32-bit
machine, we can support 64-bit BARs properly.  Just change the condition
to check sizeof(resource_size_t) instead of BITS_PER_LONG.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Matthew Wilcox 2008-07-28 13:39:00 -04:00 committed by Jesse Barnes
parent 6ac665c63d
commit cc5499c3a6
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/probe.c
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@ -270,10 +270,10 @@ static int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
if (!sz64)
goto fail;
if ((BITS_PER_LONG < 64) && (sz64 > 0x100000000ULL)) {
if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) {
dev_err(&dev->dev, "can't handle 64-bit BAR\n");
goto fail;
} else if ((BITS_PER_LONG < 64) && l) {
} else if ((sizeof(resource_size_t) < 8) && l) {
/* Address above 32-bit boundary; disable the BAR */
pci_write_config_dword(dev, pos, 0);
pci_write_config_dword(dev, pos + 4, 0);