iomap: fix 64 bits resources on 32 bits

Almost all implementations of pci_iomap() in the kernel, including the generic
lib/iomap.c one, copies the content of a struct resource into unsigned long's
which will break on 32 bits platforms with 64 bits resources.

This fixes all definitions of pci_iomap() to use resource_size_t.  I also
"fixed" the 64bits arch for consistency.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 50ce83f20adb..df3ef6db072c 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -1121,8 +1121,8 @@ void __init pci_init_resource(struct resource *res, resource_size_t start,
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
-        unsigned long start = pci_resource_start(dev, bar);
-        unsigned long len = pci_resource_len(dev, bar);
+        resource_size_t start = pci_resource_start(dev, bar);
+        resource_size_t len = pci_resource_len(dev, bar);
         unsigned long flags = pci_resource_flags(dev, bar);
 
         if (!len)