On Tue, Oct 14, 2008 at 2:13 PM, Myles Watson mylesgw@gmail.com wrote:
I'm tired of staring at this piece of code wondering why printk isn't working as I expected. Can someone point out what I've obviously missed?
code (inserted in pci_device.c in pci_get_resource() right before the limit mask and return): if (resource->flags) { printk(BIOS_DEBUG, "%s resource base %08lx limit %08lx size %08lx flags %08lx\n", dev_path(dev), resource->base, resource->limit, resource->size, resource->flags);
typedef u64 resource_t; struct resource { resource_t base; /* Base address of the resource */ resource_t size; /* Size of the resource */ resource_t limit; /* Largest valid value base + size -1 */ unsigned long flags; /* Descriptions of the kind of resource */ unsigned long index; /* Bus specific per device resource id */ unsigned char align; /* Required alignment (log 2) of the resource */ unsigned char gran; /* Granularity (log 2) of the resource */ /* Alignment must be >= the granularity of the resource */ };
Look at the type of resource_t. 64 bits. Your printk is printing 64-bit fields as 32 bits. Things are going to get very confused.
A common problem.
ron