Re: Question of resource_size() implementation

[Ben Nizette]

On 30/12/2009, at 12:04 PM, Ben Nizette wrote:
> 
> 
> So resource_size would return SZ_4K and ioremap would map the SZ_4K bytes starting at MEM_AREA1_BASE, i.e. MEM_AREA1_BASE to MEM_AREA1_BASE - 1 /inclusive/.  This is also correct.
> 

IOW it's a matter of convention.  Either we could define a single-byte range to be end=start and put the +1 in the resource_size or we could define a single-byte range to be end=start+1 and leave the +1 out of resource_size.  The in-kernel convention is the former

> 	--Ben.
> 
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