On Fri, Jul 18, 2008 at 04:40:10PM +0900, Magnus Damm wrote:
> From: Magnus Damm <[EMAIL PROTECTED]>
>
> Avoid one-off errors by introducing a resource_size() function.
>
> Signed-off-by: Magnus Damm <[EMAIL PROTECTED]>
A resource_size definition is a good idea, given the number of
times it has been re-implemented throughout the kernel.
> ---
>
> include/linux/ioport.h | 4 ++++
> kernel/resource.c | 2 +-
> 2 files changed, 5 insertions(+), 1 deletion(-)
>
> --- 0001/include/linux/ioport.h
> +++ work/include/linux/ioport.h 2008-07-09 12:59:04.000000000 +0900
> @@ -113,6 +113,10 @@ extern int allocate_resource(struct reso
> int adjust_resource(struct resource *res, resource_size_t start,
> resource_size_t size);
> resource_size_t resource_alignment(struct resource *res);
> +static inline resource_size_t resource_size(struct resource *res)
> +{
> + return res->end - res->start + 1;
> +}
>
> /* Convenience shorthand with allocation */
> #define request_region(start,n,name) __request_region(&ioport_resource,
> (start), (n), (name))
> --- 0001/kernel/resource.c
> +++ work/kernel/resource.c 2008-07-09 12:59:41.000000000 +0900
> @@ -490,7 +490,7 @@ resource_size_t resource_alignment(struc
> {
> switch (res->flags & (IORESOURCE_SIZEALIGN | IORESOURCE_STARTALIGN)) {
> case IORESOURCE_SIZEALIGN:
> - return res->end - res->start + 1;
> + return resource_size(res);
> case IORESOURCE_STARTALIGN:
> return res->start;
> default:
> --
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--
Ben ([EMAIL PROTECTED], http://www.fluff.org/)
'a smiley only costs 4 bytes'
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