Re: [PATCH v2 1/3] resource: Introduce a new helper resource_contains_addr()

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Wed, Jul 02, 2025 at 11:16:36AM +0300, Andy Shevchenko wrote:
> On Wed, Jul 02, 2025 at 03:20:06PM +0800, Li Ming wrote:
> > In CXL subsystem, many functions need to check an address availability
> > by checking if the resource range contains the address. Providing a new
> > helper function resource_contains_addr() to check if the resource range
> > contains the input address.
> 
> resources are about ranges and not addresses. At bare minimum naming sucks
> here. Also there is no symmetry with the intersection API. But I would argue

I meant overlaps, sorry for the confusion.

> to use resource_contains() and just provide necessary parameter with both
> start and end to be set at the same value.
> 
> 	struct resource r = DEFINE_RES...(addr);
> 
> 	if (resource_contains, res, &r)
> 		...do stuff...

-- 
With Best Regards,
Andy Shevchenko