__weak phys_addr_t dax_pgoff_to_phys()

in device.c [54:74]

• 19 lines of code
• 5 McCabe index (conditional complexity)

__weak phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff,
		unsigned long size)
{
	int i;

	for (i = 0; i < dev_dax->nr_range; i++) {
		struct dev_dax_range *dax_range = &dev_dax->ranges[i];
		struct range *range = &dax_range->range;
		unsigned long long pgoff_end;
		phys_addr_t phys;

		pgoff_end = dax_range->pgoff + PHYS_PFN(range_len(range)) - 1;
		if (pgoff < dax_range->pgoff || pgoff > pgoff_end)
			continue;
		phys = PFN_PHYS(pgoff - dax_range->pgoff) + range->start;
		if (phys + size - 1 <= range->end)
			return phys;
		break;
	}
	return -1;
}