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@xxxxxxxxxxxxxxx> --- drivers/pci/probe.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 3b690c3..2036300 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -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); -- 1.5.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html