unsigned long mask = queue_segment_boundary(q);
offset = mask & (page_to_phys(start_page) + offset);
- return min_t(unsigned long, mask - offset + 1,
- queue_max_segment_size(q));
+
+ /*
+ * overflow may be triggered in case of zero page physical address
+ * on 32bit arch, use queue's max segment size when that happens.
+ */
+ return min_not_zero(mask - offset + 1,
+ (unsigned long)queue_max_segment_size(q));
}
/**