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 <hpa@kernel.org>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 8fe576baa14..4afaba0ed72 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -106,7 +106,7 @@ static int ioremap_change_attr(unsigned long vaddr, unsigned long size,
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+static void __iomem *__ioremap(resource_size_t phys_addr, unsigned long size,
                                enum ioremap_mode mode)
 {
         unsigned long pfn, offset, last_addr, vaddr;
@@ -193,13 +193,13 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
  *
  * Must be freed with iounmap.
  */
-void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_nocache(resource_size_t phys_addr, unsigned long size)
 {
         return __ioremap(phys_addr, size, IOR_MODE_UNCACHED);
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
-void __iomem *ioremap_cache(unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_cache(resource_size_t phys_addr, unsigned long size)
 {
         return __ioremap(phys_addr, size, IOR_MODE_CACHED);
 }