Function ptr_to_offset

util/cbfstool/fit.c:115–119

* Get an offset from a host pointer. This function assumes the ROM is located * in the host address space at [4G - romsize -> 4G). It also assume all * pointers have values within this address range. */

 * pointers have values within this address range.
 */
static inline int ptr_to_offset(fit_offset_converter_t helper,
				const struct buffer *region, uint32_t host_ptr)
{
	return helper(region, -host_ptr);
}

/*
 * Get a pointer from an offset. This function assumes the ROM is located