Stephen Rothwell wrote:
> Hi Jesse,
>
> Today's linux-next build (powerpc ppc64_defconfig) produced this warning:
>
> drivers/pci/probe.c: In function '__pci_read_base':
> drivers/pci/probe.c:196: warning: large integer implicitly truncated to unsigned type
>
> Probably introduced by commit 82160fd142cdf6956a677120426bf5baefcc7cf9
> ("PCI/x86: don't assume prefetchable ranges are 64bit").
>
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -193,7 +193,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN;
if (type == pci_bar_io) {
l &= PCI_BASE_ADDRESS_IO_MASK;
- mask = PCI_BASE_ADDRESS_IO_MASK & 0xffff;
+ mask = PCI_BASE_ADDRESS_IO_MASK & IO_SPACE_LIMIT;
and
for x86:
#define IO_SPACE_LIMIT 0xffff
for powerpc
arch/powerpc/include/asm/io.h:#define IO_SPACE_LIMIT ~(0UL)
maybe we need to change back that line...
YH
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