On Thu, Sep 05, 2024 at 11:00:14AM +0800, Huang, Ying wrote: > Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> writes: > > On Wed, Sep 04, 2024 at 03:48:44PM +0800, Huang, Ying wrote: > >> Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> writes: > >> > On Mon, Aug 19, 2024 at 10:34:13AM +0800, Huang Ying wrote: [snip] > >> >> + ostart = max(res.start, p->start); > >> >> + oend = min(res.end, p->end); > >> > > >> > Isn't a reinvention of resource_intersection()? With that in place you may also > >> > drop the above resource_overlaps(). > >> > >> sizeof(struct resource) == 8 * sizeof(unsigned long) > >> > >> Just want to avoid to define another struct resource on stack. > > > > Is it a problem? > > Not a serious problem. Just prefer to avoid too much stack usage. > IMHO, the benefit isn't large too. Benefit is so use existing APIs and see from the code where we handle resources (in semantic meaning). -- With Best Regards, Andy Shevchenko