path: root/lib/iomap.c
diff options
authorLinus Torvalds <>2008-03-24 11:22:39 -0700
committerLinus Torvalds <>2008-03-24 11:22:39 -0700
commitb9e76a00749521f2b080fa8a4fb15f66538ab756 (patch)
tree814bd118b1a44b370b080d96cbe19763aebf9f69 /lib/iomap.c
parent92896bd9fd75b1c993b92874d339a8088bb75560 (diff)
x86-32: Pass the full resource data to ioremap()
It appears that 64-bit PCI resources cannot possibly ever have worked on x86-32 even when the RESOURCES_64BIT config option was set, because any driver that tried to [pci_]ioremap() the resource would have been unable to do so because the high 32 bits would have been silently dropped on the floor by the ioremap() routines that only used "unsigned long". Change them to use "resource_size_t" instead, which properly encodes the whole 64-bit resource data if RESOURCES_64BIT is enabled. Acked-by: H. Peter Anvin <> Acked-by: Stefan Richter <> Cc: Ivan Kokshaysky <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'lib/iomap.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/iomap.c b/lib/iomap.c
index db004a9ff509..dd6ca48fe6b0 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -256,7 +256,7 @@ EXPORT_SYMBOL(ioport_unmap);
* */
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
- unsigned long start = pci_resource_start(dev, bar);
+ resource_size_t start = pci_resource_start(dev, bar);
unsigned long len = pci_resource_len(dev, bar);
unsigned long flags = pci_resource_flags(dev, bar);